COOK-LAKE IN-PORTER-
INCLUDING THE CITIES OF…CHICAGO…GARY…VALPARAISO
543 PM CDT SUN APR 28 2013

…DENSE FOG ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
FOR AREAS NEAR LAKE MICHIGAN…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A DENSE FOG
ADVISORY…WHICH IS IN EFFECT UNTIL 10 PM CDT THIS EVENING.

* VISIBILITY…LESS THAN ONE QUARTER MILE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE
REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING…SLOW DOWN…
USE YOUR HEADLIGHTS…AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU.

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THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
COOK COUNTY IN NORTHEAST ILLINOIS…
DUPAGE COUNTY IN NORTHEAST ILLINOIS…
KANKAKEE COUNTY IN NORTHEAST ILLINOIS…
WILL COUNTY IN NORTHEAST ILLINOIS…

* UNTIL 815 AM CDT

* AT 715 AM CDT…A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM ELK GROVE VILLAGE TO LAKEWOOD SHORES TO 7 MILES
SOUTHWEST OF HERSCHER…AND MOVING NORTHEAST AT 50 MPH.

HAZARD…60 MPH WIND GUSTS.

SOURCE…RADAR INDICATED.

IMPACT…EXPECT DAMAGE MINOR DAMAGE TO ROOFS…SIDING AND TREES.

* SEVERE THUNDERSTORMS WILL BE NEAR…
MOUNT PROSPECT AND NEW LENOX AROUND 725 AM CDT.
WILLOW SPRINGS AND SUMMIT AROUND 730 AM CDT.
GLENCOE AND WILMETTE HARBOR AROUND 735 AM CDT.
ROGERS PARK AND RICHTON PARK AROUND 740 AM CDT.
ST. ANNE AND UNIVERSITY PARK AROUND 745 AM CDT.
HOPKINS PARK AND THORNTON AROUND 750 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE WILLOWBROOK…BONFIELD…
BERKELEY…RIVER GROVE…PALOS PARK…ORLAND HILLS…MCCOOK…LA
GRANGE PARK…GOLF AND ELMWOOD PARK.

THIS INCLUDES THE CITY OF CHICAGO.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

Especially this afternoon: Our area is in a 2 percent risk area for the probability of a tornado within 25 miles of the northwest suburbs of Chicago. The City of Chicago, south and southwest suburbs are in a 5 percent risk area.

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…THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN
ILLINOIS…

DES PLAINES RIVER AT LINCOLNSHIRE AFFECTING LAKE COUNTY
DES PLAINES RIVER NEAR DES PLAINES AFFECTING COOK COUNTY
DES PLAINES RIVER AT RIVERSIDE AFFECTING COOK COUNTY
DES PLAINES RIVER NEAR RUSSELL AFFECTING LAKE COUNTY
DES PLAINES RIVER NEAR GURNEE AFFECTING LAKE COUNTY

.SYNOPSIS…
A RECORD FLOOD EVENT IS FORECAST FOR PARTS OF THE DES PLAINS RIVER
BASIN. TWO AND A HALF TO FOUR INCHES OF RAINFALL THROUGH EARLY THIS
MORNING…ALONG WITH AN ADDITIONAL ONE TO THREE INCHES OF RAIN
ACROSS MUCH OF THE DES PLAINES RIVER BASIN WILL LEAD TO
SIGNIFICANT RIVER RISES INTO FRIDAY. CRESTS MAY LAST AS LONG AS 12
TO 24 HOURS AT SOME POINTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

SAFETY MESSAGE…IF YOU ENCOUNTER A FLOODED ROADWAY…TURN AROUND AND
FIND AN ALTERNATE ROUTE.

&&

350 AM CDT THU APR 18 2013

THE FLOOD WARNING CONTINUES FOR
THE DES PLAINES RIVER NEAR DES PLAINES.
* UNTIL THE MIDDLE OF NEXT WEEK.
* AT 245 AM THURSDAY THE STAGE WAS 6.0 FEET.
* FLOOD STAGE IS 5.0 FEET.
* MINOR FLOODING IS OCCURRING AND RECORD FLOODING IS FORECAST.
* FORECAST…THE RIVER WILL CONTINUE RISING TO NEAR 11.5 FEET BY
FRIDAY MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE WEDNESDAY
AFTERNOON.

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THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* FLASH FLOOD WARNING FOR…
GRUNDY COUNTY IN NORTHEAST ILLINOIS…
KANKAKEE COUNTY IN NORTHEAST ILLINOIS…
LAKE COUNTY IN NORTHWEST INDIANA…
LIVINGSTON COUNTY IN CENTRAL ILLINOIS…
NORTHERN FORD COUNTY IN EAST CENTRAL ILLINOIS…
NORTHERN IROQUOIS COUNTY IN EAST CENTRAL ILLINOIS…
SOUTHEASTERN COOK COUNTY IN NORTHEAST ILLINOIS…
SOUTHERN LA SALLE COUNTY IN NORTH CENTRAL ILLINOIS…
SOUTHWESTERN PORTER COUNTY IN NORTHWEST INDIANA…
WILL COUNTY IN NORTHEAST ILLINOIS…

* UNTIL 200 PM CDT THURSDAY

* AT 554 AM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF THUNDERSTORMS MOVING INTO WESTERN LA SALLE AND
LIVINGSTON COUNTIES MOVING NORTHEAST WITH A LARGE AREA OF SHOWERS
AND THUNDERSTORMS TRAINING BEHIND IT. THIS INITIAL BAND OF STORMS
WILL LIKELY BRING RAINFALL AMOUNTS OF AROUND 1 INCH IN ABOUT AN
HOURS TIME. STORMS ARE EXPECTED TO MOVE ACROSS THE WARNED AREA
THROUGH AT LEAST MID MORNING WHICH MAY RESULT IN 2 TO POSSIBLY 3
ADDITIONAL INCHES OF RAIN.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…BLUE
ISLAND…BOURBONNAIS…BRADLEY…BURNHAM…CALUMET CITY…CEDAR
LAKE…CHANNAHON…CHICAGO HEIGHTS…CROWN POINT…DOLTON…
DWIGHT…EAST CHICAGO…FAIRBURY…FLOSSMOOR AND FRANKFORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS…HIGHWAYS…VIADUCTS…AND UNDERPASSES.
ADDITIONALLY…COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF
CREEKS…STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

Stay informed with news from The Cardinal’s Emergencies Behind the Scenes Facebook page — Facebook.com/CardinalEmergencies. Includes links to favorite public safety and emergency rescuers and product manufacturers and safety companies that have facebook pages. Submit your pictures or just stay up-to-date on with fire, rescue, EMS and police photo galleries. Please add your public safety photo to the wall album — go direct to the Arlington Cardinal Emergencies Behind the Scenes photos. For a list of all of The Cardinal Facebook fan pages, go to Arlingtoncardinal.com/about/facebook …

BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
144 PM CDT WED APR 17 2013

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
BOONE COUNTY IN NORTH CENTRAL ILLINOIS…
NORTHWESTERN COOK COUNTY IN NORTHEAST ILLINOIS…
NORTHERN DE KALB COUNTY IN NORTH CENTRAL ILLINOIS…
NORTHERN KANE COUNTY IN NORTHEAST ILLINOIS…
LAKE COUNTY IN NORTHEAST ILLINOIS…
MCHENRY COUNTY IN NORTHEAST ILLINOIS…
NORTHEASTERN WINNEBAGO COUNTY IN NORTH CENTRAL ILLINOIS…

* UNTIL 245 PM CDT

* AT 141 PM CDT…A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM 7 MILES SOUTH OF CLINTON TO 5 MILES NORTH OF
KINGSTON TO MALTA…AND MOVING EAST AT 50 MPH.

HAZARD…QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE…RADAR INDICATED.

IMPACT…HAIL DAMAGE TO VEHICLES AND CROPS IS EXPECTED. EXPECT WIND
DAMAGE TO ROOFS…SIDING AND TREES.

* SEVERE THUNDERSTORMS WILL BE NEAR…
SYCAMORE AND GENOA AROUND 150 PM CDT.
MARENGO AND HARVARD AROUND 155 PM CDT.
HAMPSHIRE AROUND 200 PM CDT.
WOODSTOCK AND LAKEWOOD AROUND 205 PM CDT.
WONDER LAKE AND LAKE IN THE HILLS AROUND 210 PM CDT.
LAKEMOOR AND WEST DUNDEE AROUND 215 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE UNION…BURLINGTON…PINGREE
GROVE…CRYSTAL LAKE…CARY…LAKE BARRINGTON…FOX RIVER VALLEY
GARDENS…FOX RIVER GROVE…BARRINGTON HILLS AND SOUTH BARRINGTON.

OTHER LOCATIONS AFFECTED…
BOONE COUNTY FAIRGROUNDS…CHAIN O LAKES STATE PARK…COLLEGE OF LAKE
COUNTY…GREAT LAKES NAVAL TRAINING CENTER…IL BEACH STATE PARK…
LAKE COUNTY FIELDERS BASEBALL…

PRECAUTIONARY/PREPAREDNESS ACTIONS…

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

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THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* FLASH FLOOD WARNING FOR…
LAKE COUNTY IN NORTHEAST ILLINOIS…
NORTHERN KANE COUNTY IN NORTHEAST ILLINOIS…
NORTHWESTERN COOK COUNTY IN NORTHEAST ILLINOIS…
SOUTHEASTERN MCHENRY COUNTY IN NORTHEAST ILLINOIS…

* UNTIL 600 PM CDT WEDNESDAY

* AT 1159 AM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS PRODUCING TORRENTIAL DOWNPOURS…WITH RAINFALL RATES
IN EXCESS OF AN INCH AND A HALF PER HOUR. KANE COUNTY EMERGENCY
MANAGEMENT REPORTS ROUTE 47 AND PLATO ROAD COMPLETELY FLOODED.
ADDITIONAL THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL MOVE ACROSS
THE AREA LATER THIS AFTERNOON…FURTHER INCREASING THE FLASH FLOOD
THREAT. RAINFALL TOTALS LOCALLY IN EXCESS 3 INCHES ARE EXPECTED BY
EARLY THIS EVENING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

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BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1117 AM CDT WED APR 17 2013

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
NORTHERN COOK COUNTY IN NORTHEAST ILLINOIS…
EASTERN DE KALB COUNTY IN NORTH CENTRAL ILLINOIS…
NORTHERN DUPAGE COUNTY IN NORTHEAST ILLINOIS…
KANE COUNTY IN NORTHEAST ILLINOIS…
SOUTHERN LAKE COUNTY IN NORTHEAST ILLINOIS…
SOUTHEASTERN MCHENRY COUNTY IN NORTHEAST ILLINOIS…

* UNTIL 1215 PM CDT

* AT 1115 AM CDT…A SEVERE THUNDERSTORM WAS LOCATED NEAR MAPLE
PARK…AND MOVING NORTHEAST AT 45 MPH.

HAZARD…QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE…RADAR INDICATED.

IMPACT…HAIL DAMAGE TO VEHICLES AND CROPS IS EXPECTED. EXPECT WIND
DAMAGE TO ROOFS…SIDING AND TREES.

* THE SEVERE THUNDERSTORM WILL BE NEAR…
ST. CHARLES AROUND 1130 AM CDT.
WAYNE AROUND 1135 AM CDT.
ELGIN AND BARTLETT AROUND 1140 AM CDT.
STREAMWOOD AND HANOVER PARK AROUND 1145 AM CDT.
HOFFMAN ESTATES AND SCHAUMBURG AROUND 1150 AM CDT.
PALATINE AND ROLLING MEADOWS AROUND 1155 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE PINGREE GROVE…SOUTH ELGIN…
BARRINGTON HILLS…SOUTH BARRINGTON…DEER PARK AND HIGHWOOD.

THIS INCLUDES THE CITY OF CHICAGO.

OTHER LOCATIONS AFFECTED…
COLLEGE OF DUPAGE…DUPAGE COUNTY FAIRGROUNDS…ELGIN COMMUNITY
COLLEGE…FERMILAB…GREAT LAKES NAVAL TRAINING CENTER…HARPER
COLLEGE…

PRECAUTIONARY/PREPAREDNESS ACTIONS…

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

http://maps.google.com/?q=ENTER+ADDRESS&t=h&z=17

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The greatest chance for thunderstorms is between 3:00 p.m. and 10:00 p.m. Wednesday, and between 6:00 a.m. and 7:00 p.m. Thursday.

A total of about 3.20 inches of rain is expected from 9:30 a.m. Wednesday until 7:00 a.m. Friday.

Radar shows storms moving rapidly from southwest to northeast with the strongest storms near the Quad Cities and heading toward Rockford at 9:30 a.m. A strong storm is also just entering southwest DuPage County at 9:30 a.m.

Lightning and thunder has been observed since about 9:15 a.m. near Arlington Heights.

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 113
NWS STORM PREDICTION CENTER NORMAN OK
915 AM CDT WED APR 17 2013

SEVERE THUNDERSTORM WATCH 113 IS IN EFFECT UNTIL 500 PM CDT
FOR THE FOLLOWING LOCATIONS

ILLINOIS COUNTIES INCLUDED ARE

BOONE                BUREAU              CARROLL

COOK                 DE KALB             DUPAGE

FULTON               GRUNDY              HANCOCK

HENDERSON            HENRY               JO DAVIESS

KANE                 KANKAKEE            KENDALL

KNOX                 LAKE                LA SALLE

LEE                  LIVINGSTON          MARSHALL

MCDONOUGH            MCHENRY             MERCER

OGLE                 PEORIA              PUTNAM

ROCK ISLAND          STARK               STEPHENSON

TAZEWELL             WARREN              WHITESIDE

WILL                 WINNEBAGO           WOODFORD

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An experimental weather model (HPC Winter Weather Desk) has produced a guidance map that shows a 75 percent chance that Chicago, west suburbs, northwest suburbs and north suburbs will get hit with a snow accumulation of 4-6 inches by Wednesday morning. There’s a 50 percent confidence in the model of 6-8 inches. The greatest snowfall rate is expected to occur between 6 a.m. Tuesday and 5:00 p.m. Tuesday after about an inch of snow falling overnight Monday to Tuesday. Light snow is expected to start about noon on Monday with about one-half inch accumulated by 7:00 p.m. Monday. Air temperature is expected to be about 30-32°F for most of the snow period.

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
311 PM CST SUN MAR 3 2013

…CHANCES FOR SIGNIFICANT SNOW ACCUMULATION INCREASING ACROSS
NORTHERN ILLINOIS AND NORTHWEST INDIANA MONDAY NIGHT AND TUESDAY…

.UPPER LEVEL LOW PRESSURE ACROSS WESTERN MONTANA THIS AFTERNOON
WILL HELP SURFACE LOW PRESSURE TO DEVELOP ACROSS THE PLAINS INTO
MONDAY AS IT MOVES SOUTHEASTWARD. SURFACE LOW PRESSURE WILL THEN
FOCUS ACROSS THE OHIO VALLEY EARLY TUESDAY AND MOVE NORTHEASTWARD.
A BAND OF LIGHT SNOW IS EXPECTED TO MOVE INTO NORTHERN ILLINOIS
DURING THE DAY MONDAY OUT AHEAD OF THE MAIN SYSTEM BRINGING
ACCUMULATION OF UP TO AROUND AN INCH. THE MAIN SYSTEM WILL THEN
SPREAD SNOW INTO NORTHERN ILLINOIS MONDAY EVENING AND EARLY MONDAY
NIGHT AND ACROSS NORTHWEST INDIANA INTO EARLY TUESDAY MORNING. SNOW
WILL THEN CONTINUE THROUGH MUCH OF THE DAY TUESDAY BEFORE TAPERING
OFF TUESDAY EVENING. ADJUSTMENTS MAY STILL NEED TO BE MADE TO THE
TRACK OF THE SYSTEM AND THEREFORE THE LOCATION OF THE HEAVIEST
SNOWFALL BUT AT THIS POINT AREAS IN THE WATCH HAVE A STRONG
PROBABILITY OF ACCUMULATING SNOWFALL WHICH WILL LIKELY EXCEED 6
INCHES ACROSS AT LEAST SOME PORTION OF THE WATCH AREA. CHECK BACK
FOR UPDATES REGARDING SNOW AMOUNTS AND WHERE THE HEAVIEST SNOW
WILL FALL.

MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-KANKAKEE-
LAKE IN-PORTER-NEWTON-JASPER-
INCLUDING THE CITIES OF…WOODSTOCK…WAUKEGAN…AURORA…
WHEATON…CHICAGO…OSWEGO…MORRIS…JOLIET…KANKAKEE…GARY…
VALPARAISO…MOROCCO…RENSSELAER
311 PM CST SUN MAR 3 2013

…WINTER STORM WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH
TUESDAY EVENING…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER STORM
WATCH…WHICH IS IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY
EVENING.

* TIMING…LIGHT SNOW IS IS EXPECTED TO SPREAD ACROSS NORTHEAST
ILLINOIS AND NORTHWEST INDIANA MONDAY NIGHT AND BECOME MORE
INTENSE TUESDAY MORNING AND TUESDAY AFTERNOON.

* SNOW ACCUMULATION…IN EXCESS OF 6 INCHES POSSIBLE.

* OTHER IMPACTS…SNOW MAY FALL HEAVILY AT TIMES FROM TUESDAY
MORNING THROUGH TUESDAY AFTERNOON. ACCUMULATION RATES OF 1 TO
1.5 INCHES PER HOUR ARE POSSIBLE AT TIMES MAKING SNOW REMOVAL
DIFFICULT AND TRAVEL EXTREMELY DANGEROUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

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UPGRADED HEADLINE FOR FAR NORTHERN CHICAGO AREA TO A WINTER STORM WARNING DUE TO CONTINUED ENHANCED SNOWFALL RATES AT TIMES WITHIN THE SHOWERY ACTIVITY MAKING FOR FURTHER DANGEROUS TRAVEL. CALLS TO DISPATCH AND POLICE IN THAT AREA HAVE SHOWN SIGNIFICANT IMPACTS AND A WARNING IS NEEDED…EVEN IF THE WIDESPREAD HEAVY RATES HAVE BECOME MORE SPORADIC. STILL…THE SPORADIC RATES ARE HEAVY WITH
QUARTER MILE OR LESS VISIBILITIES BEING REPORTED…INDICATING AT
LEAST ONE INCH PER HOUR RATES.

– NWS CHICAGO/ROMEOVILLE IL

The Winter Weather Advisory for the rest of Illinois was expired, except for Cook and DuPage counties, where a Winter Weather Advisory was also extended until 6:00 a.m.

MCHENRY-LAKE IL-
INCLUDING THE CITIES OF…WOODSTOCK…WAUKEGAN
856 PM CST TUE FEB 26 2013

…WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
WEDNESDAY…

* TIMING…PERIODS OF LIGHT TO MODERATE SNOW WILL BE POSSIBLE
THROUGH THE NIGHT.

* SNOW ACCUMULATION…6 TO 10 INCHES OF SNOW WILL HAVE FALLEN BY
DAYBREAK.

* IMPACTS…UNTREATED ROADS MAY BE SNOW COVERED AND SLICK. THIS
IS A HEAVY WET SNOW…SOMETIMES REFERRED TO AS HEART ATTACK
SNOW. DUE TO THE WEIGHT OF THE SNOW CAUTION SHOULD BE EXERCISED
TO NOT OVER EXERT ONESELF WHEN SHOVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL…KEEP AN EXTRA FLASHLIGHT…
FOOD…AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

+++++++

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
512 PM CST TUE FEB 26 2013

MCHENRY-LAKE IL-
INCLUDING THE CITIES OF…WOODSTOCK…WAUKEGAN
512 PM CST TUE FEB 26 2013

…WINTER STORM WARNING IN EFFECT UNTIL 6 AM CST WEDNESDAY…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW…WHICH IS IN EFFECT UNTIL 6 AM CST
WEDNESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.

* TIMING…WET SNOW WILL CONTINUE THROUGH THE EVENING AND BE HEAVY
AT TIMES THROUGH EARLY EVENING.

* SNOW ACCUMULATION…6 TO 10 INCHES OF SNOW WILL HAVE FALLEN BY
DAYBREAK.

* WINDS…GUSTING AS HIGH AS 35 MPH.

* MAIN IMPACT…TEMPORARY SNOWFALL RATES IN EXCESS OF ONE INCH PER
HOUR ALONG WITH WIND WHIPPED SNOW RESULTING IN TEMPORARY WHITE
OUT CONDITIONS WITH NEAR ZERO VISIBILITY AT TIMES IN OPEN AREAS.
SNOW WILL SIGNIFICANTLY SLOW TRAVEL AND MAKE IT DANGEROUS AT
TIMES THROUGH THE EARLY EVENING COMMUTE…SO PERSONS PLANNING
TRAVEL SHOULD ANTICIPATE EXTREMELY ELEVATED TRAVEL TIMES.

* OTHER IMPACTS…THIS IS A HEAVY WET SNOW…SOMETIMES REFERRED
TO AS HEART ATTACK SNOW. DUE TO THE WEIGHT OF THE SNOW CAUTION
SHOULD BE EXERCISED TO NOT OVER EXERT ONESELF WHEN SHOVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL…KEEP AN EXTRA FLASHLIGHT…
FOOD…AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW…
SLEET…AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

A WINTER STORM WARNING FOR SLEET MEANS THAT A WINTER STORM SYSTEM
IS IMPACTING THE AREA WITH SIGNIFICANT AMOUNTS OF SLEET. TRAVEL
IS LIKELY TO BE SEVERELY IMPACTED.

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URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
512 PM CST TUE FEB 26 2013

WINNEBAGO-BOONE-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
INCLUDING THE CITIES OF…ROCKFORD…BELVIDERE…OREGON…DIXON…
DEKALB…AURORA…WHEATON…CHICAGO
512 PM CST TUE FEB 26 2013

…WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM CST
WEDNESDAY…

* TIMING…WET SNOW WILL CONTINUE THROUGH THE NIGHT AND BE HEAVY
AT TIMES THROUGH EARLY EVENING. SNOW MAY DIMINISH IN INTENSITY
LATE THIS EVENING BUT STILL SHOULD CONTINUE TO ACCUMULATE.

* SNOW ACCUMULATION…4 TO 7 INCHES OF SNOW WILL HAVE FALLEN BY
LATE EVENING FROM THE ROCKFORD AND DIXON AREAS EASTWARD TO
CHICAGO.

* WINDS…GUSTING AS HIGH AS 35 MPH.

* MAIN IMPACT…SNOWFALL RATES IN EXCESS OF ONE INCH PER HOUR
THROUGH EARLY EVENING ALONG WITH WIND WHIPPED SNOW RESULTING IN
TEMPORARY WHITE OUT CONDITIONS WITH NEAR ZERO VISIBILITY AT
TIMES IN OPEN AREAS. SNOW WILL SIGNIFICANTLY SLOW TRAVEL THROUGH
THE EARLY EVENING COMMUTE…SO PERSONS PLANNING TRAVEL SHOULD
ANTICIPATE EXTREMELY ELEVATED TRAVEL TIMES. IN ADDITION…TRAVEL
THROUGH CHICAGO OHARE AND MIDWAY AIRPORTS WILL BE SIGNIFICANTLY
IMPACTED.

* OTHER IMPACTS…THIS IS A HEAVY WET SNOW…SOMETIMES REFERRED
TO AS HEART ATTACK SNOW. DUE TO THE WEIGHT OF THE SNOW CAUTION
SHOULD BE EXERCISED TO NOT OVER EXERT ONESELF WHEN SHOVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

http://maps.google.com/?q=&t=h&z=17

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URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
230 AM CST TUE FEB 26 2013

WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-
INCLUDING THE CITIES OF…ROCKFORD…BELVIDERE…WOODSTOCK…
WAUKEGAN…OREGON…DIXON…DEKALB…AURORA…WHEATON…CHICAGO…
OTTAWA…OSWEGO…MORRIS…JOLIET
230 AM CST TUE FEB 26 2013

…WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM CST
THIS EVENING…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW…WHICH IS IN EFFECT
FROM NOON TODAY TO 9 PM CST THIS EVENING. THE WINTER STORM WATCH
IS NO LONGER IN EFFECT.

* TIMING…RAIN OR WET SNOW…POSSIBLY MIXED WITH A BIT OF
SLEET…WILL DEVELOP BY EARLY AFTERNOON WITH PRECIPITATION
LIKELY TO TRANSITION TO ALL WET SNOW THIS AFTERNOON WITH SNOW
CONTINUING INTO THE EARLY EVENING. SNOW MAY BE HEAVY AT TIMES.

* SNOW ACCUMULATION…THERE REMAINS A HIGH DEGREE OF UNCERTAINTY
WITH RESPECT TO SNOW ACCUMULATION…HOWEVER BEST GUESS AT THIS
TIME IS THAT 3 TO LOCALLY 6 INCHES OF SNOW WILL HAVE FALLEN BY
LATE EVENING ACROSS THE ADVISORY AREA. THERE IS A SLIGHT CHANCE
OF ISOLATED THUNDERSNOW WHICH COULD RESULT IN ISOLATED TOTALS
OVER 6 INCHES.

* MAIN IMPACT…HEAVY WIND WHIPPED WET SNOW IS EXPECTED THIS
AFTERNOON AND EVENING RESULTING IN VERY LOW VISIBILITIES AND
DIFFICULT TRAVEL. WINDS MAY GUST AS HIGH AS 40 MPH…ESPECIALLY
NEAR THE LAKE. HEAVY SNOW IS EXPECTED TO IMPACT THE LATE
AFTERNOON COMMUTE…SO PERSONS PLANNING TRAVEL THIS AFTERNOON
AND EVENING SHOULD ANTICIPATE SIGNIFICANTLY ELEVATED TRAVEL
TIMES.

* OTHER IMPACTS…SNOWFALL RATES OF IN EXCESS OF AN INCH PER HOUR
COULD OCCUR…PARTICULARLY WITH ANY ISOLATED THUNDERSNOW THAT
OCCURS. TRAVEL THROUGH CHICAGO O`HARE AND MIDWAY AIRPORTS COULD
BE SIGNIFICANTLY IMPACTED. THIS WILL LIKELY BE A HEAVY WET
SNOW…SOMETIMES REFERRED TO AS HEART ATTACK SNOW. DUE TO THE
WEIGHT OF THE SNOW CAUTION SHOULD BE EXERCISED TO NOT OVER EXERT
YOURSELF WHEN SHOVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

Accumulation Forecasts by Midnight …
Barrington … 4.8 inches
Glenview … 4.8 inches
Joliet … 4.4 inches
Lake Forest … 4.9 inches
Orland Park … 3.7 inches
Rockford … 4.2 inches
Schaumburg … 4.7 inches
Waukegan … 4.8 inches
Wheaton … 4.6 inches

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US Map of 24-hour Snowfall Accumulation showing a 50 percent chance of a path of snow with an accumulation of 4-6 inches from western Illinois to northeast Illinois (dark green) was mapped out by an experimental model just after noon Monday morning.

Weather for tomorrow is very difficult to predict with areas of heavy snow forecast in a width of only three or four counties.

The current weather model includes Arlington Heights in an area with a forecast of 6.8 inches of heavy, wet snow — right smack in the middle of the probable path. Rockford is in line for 5.7 inches. Orland Park is in line for 6.4 inches. Wheaton is in line for 6.9 inches of snow. These accumulations are likely to get downgraded to about 4-6 inches by this evening, and a lack of enough cold air in the forecast area or in the entire Great Lakes area, could result in even less snow accumulation — about 2-4 inches. The warm air may also dry out (occlude) the system that is approaching, resulting in a second factor that would negate this system as a major snow producer.

That being said, and realizing that it is too early to give a reliable scientific forecast; The Cardinal is turning to the “art” of forecasting. At this early point in the forecast for Tuesday, The Cardinal is forecasting 4-6 inches accumulation for Arlington Heights, northwest Cook County and the northern suburbs. The Cardinal expects the upcoming winter storm to be the biggest so far this winter season. The Cardinal is betting (and it’s a long shot) that the forecast storm path will be accurate, the moist Gulf air will continue to flow into the area, the low pressure will be intense, the air will be cold enough to make a decent snow machine, and that Lake Effect snow will add to the accumulation.

Monday, with its sunny skies, is turning out warmer than expected, but that does not mean, by itself, that there will be diminished snow accumulation tomorrow. The air seems ripe for significant precipitation, but temperature predictions for tomorrow are currently unreliable. Air temperature today at noon was 40°F. Winds have been light from the east and southeast, or calm conditions have existed.

The low pressure system is intensifying as it approaches with plenty of Gulf moisture moving into the area — unlike the over-rated snow system we just experienced last Thursday/Friday, which was influenced by dry air. As the low pressure center gets close and passes, it is expected to bring strong northeast winds, which could bring additional snow from lake effect snow to areas near the Lake Michigan shoreline. Winds are expected to be steady at about 22 mph from about 9:00 a.m. until 1:00 p.m. Tuesday — and gusting up to 37 mph. No big cold blast is expected after the storm with temperatures holding in the 30s and upper 20s.

And if The Cardinal is wrong, we’ll be all wet.

A Winter Storm Warning was already posted for Macomb, IL, Galesburg, IL and Quincy, IL; and now includes Peoria. However, areas just east and south of Peoria have a Winter Weather Advisory, and cities two counties over have only a Hazardous Weather Outlook. The warnings, watches and advisories further illustrate the narrow margins for Tuesday’s forecast.

URGENT – WINTER WEATHER MESSAGE…CORRECTED
NATIONAL WEATHER SERVICE CHICAGO IL
1025 AM CST MON FEB 25 2013

…POTENTIALLY HEAVY SNOW AND STRONG WINDS TO AFFECT NORTHERN IL
ON TUESDAY…

WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-
INCLUDING THE CITIES OF…ROCKFORD…BELVIDERE…WOODSTOCK…
WAUKEGAN…OREGON…DIXON…DEKALB…AURORA…WHEATON…CHICAGO…
OTTAWA…OSWEGO…MORRIS…JOLIET
1025 AM CST MON FEB 25 2013

…WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY EVENING…

* TIMING…WET SNOW…POSSIBLY MIXED WITH SLEET INITIALLY…WILL
BEGIN TUESDAY MORNING AND CONTINUE THROUGH TUESDAY AFTERNOON.
SNOW MAY BE HEAVY AT TIMES BEFORE TAPERING TO LIGHTER SNOW
TUESDAY EVENING.

* SNOW ACCUMULATION…LIMITED THREAT FOR LOCALIZED AMOUNTS OF 6
INCHES.

* MAIN IMPACT…HEAVY SNOW AND STRONG EAST NORTHEAST WINDS
GUSTING TO 40 MPH…ESPECIALLY NEAR THE LAKE MICHIGAN SHORE…
WILL REDUCE VISIBILITY AND MAKE TRAVEL HAZARDOUS.

* SECONDARY IMPACT…THE WET AND HEAVY NATURE OF THE SNOW CAN
RESULT IN DIFFICULTY SHOVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

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Monday, with its sunny skies, is turning out warmer than expected, but that does not mean, by itself, that there will be diminished snow accumulation tomorrow. The air seems ripe for significant precipitation, but temperature predictions for tomorrow are currently unreliable.

The low pressure system is intensifying as it approaches. As it gets close and passes it is expected to bring strong northeast winds, which could bring additional lake effect snow to areas near the Lake Michigan shoreline.

A Winter Storm Warning has already been posted for Macomb, IL, Galesburg, IL and Quincy, IL.

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
412 AM CST MON FEB 25 2013

…POTENTIALLY HEAVY SNOW AND STRONG WINDS TO AFFECT NORTHERN IL
ON TUESDAY…

WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-
INCLUDING THE CITIES OF…ROCKFORD…BELVIDERE…WOODSTOCK…
WAUKEGAN…OREGON…DIXON…DEKALB…AURORA…WHEATON…CHICAGO…
OTTAWA…OSWEGO…MORRIS…JOLIET
412 AM CST MON FEB 25 2013

…WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY EVENING…

* TIMING…SNOW…POSSIBLY MIXED WITH SLEET INITIALLY…BEGINS
TUESDAY MORNING AND CONTINUES HEAVY AT TIMES THROUGH TUESDAY
AFTERNOON BEFORE TAPERING TO LIGHTER SNOW TUESDAY EVENING.

* SNOW ACCUMULATION…LOCAL SNOWFALL ACCUMULATIONS OVER 6 INCHES
ARE POSSIBLE ACROSS THE WATCH AREA.

* MAIN IMPACT…HEAVY SNOW AND STRONG EAST NORTHEAST WINDS GUSTING
TO 40 MPH…ESPECIALLY NEAR THE LAKE MICHIGAN SHORE…WILL
REDUCE VISIBILITY AND MAKE TRAVEL HAZARDOUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

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URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
243 PM CST THU FEB 21 2013

MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-WILL-LAKE IN-PORTER-
INCLUDING THE CITIES OF…WOODSTOCK…WAUKEGAN…AURORA…
WHEATON…CHICAGO…OSWEGO…JOLIET…GARY…VALPARAISO
243 PM CST THU FEB 21 2013

…WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 6 PM CST FRIDAY…

* TIMING…SNOW IS EXPECTED TO DEVELOP THIS EVENING AND CONTINUE
INTO FRIDAY. THE SNOW WILL CHANGE OVER TO AND POSSIBLY MIX WITH
LIGHT FREEZING DRIZZLE FRIDAY MORNING.

* SNOW FALL RATES…A PERIOD OF HEAVY SNOW IS EXPECTED LATE THIS
EVENING THROUGH THE EARLY OVERNIGHT HOURS WITH SNOW FALL RATES
OF ONE INCH OR MORE PER HOUR EXPECTED.

* STORM TOTAL ACCUMULATION…AMOUNTS OF 3 TO 6 INCHES ARE EXPECTED
WITH LOCALLY HIGHER AMOUNTS POSSIBLE. ICE ACCUMULATIONS WILL BE LESS
THAN A TENTH OF AN INCH.

* WIND…WIND GUSTS AROUND 30 MPH ARE EXPECTED WITH OCCASIONAL GUSTS
TO 35 MPH.

* VISIBILITY…HEAVY SNOW COMBINED WITH GUSTY WINDS WILL RESULT IN
VISIBILITIES OF LESS THAN ONE HALF OF A MILE. BRIEF WHITE OUT
CONDITIONS ARE POSSIBLE THROUGH FRIDAY MORNING.

* OTHER IMPACTS…THE MORNING COMMUTE MAY BE HAZARDOUS DUE TO
SLUSHY ROAD CONDITIONS…BLOWING SNOW…AND LOW VISIBILITIES.
SHOVELING WILL ALSO BE DIFFICULT GIVEN THE HEAVY WET SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW…SLEET…OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

Snow Accumulations Forecast …
Northern Buffalo Grove … 3.3 inches
Glenview 3.3 inches
Elgin … 3.5 inches
Cary … 3.6 inches
Schaumburg at Woodfield Mall … 3.3 inches
Oak Park … 3.3 inches
Wheaton … 3.2 inches
Naperville … 3.2 inches
Joliet (downtown) … 3.3 inches
Park Forest … 3.1 inches
Kankakee … 3.5 inches
Downtown Chicago … 3.3 inches

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URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
500 AM CST THU FEB 21 2013

MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-WILL-LAKE IN-PORTER-
INCLUDING THE CITIES OF…WOODSTOCK…WAUKEGAN…AURORA…
WHEATON…CHICAGO…OSWEGO…JOLIET…GARY…VALPARAISO
500 AM CST THU FEB 21 2013

…WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 6 PM CST FRIDAY…

* TIMING…SNOW IS EXPECTED TO DEVELOP THURSDAY EVENING AND
CONTINUE INTO FRIDAY. THE SNOW WILL CHANCE OVER TO AND POSSIBLY
MIX WITH LIGHT FREEZING DRIZZLE FRIDAY MORNING.

* MAIN IMPACT…STORM TOTAL SNOWFALL AMOUNTS OF 3 TO 5 INCHES
ARE EXPECTED. ICE ACCUMULATIONS WILL BE LESS THAN A TENTH OF
AN INCH.

* OTHER IMPACTS…A PERIOD OF HEAVY SNOW WITH SNOW FALL RATES OF
ONE INCH PER HOUR IS POSSIBLE LATE THURSDAY EVENING INTO THE
OVERNIGHT HOURS. EASTERLY WINDS GUSTING TO 25 TO 30 MPH MAY
CAUSE BLOWING SNOW AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW…SLEET…OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

Snow Accumulations Forecast …

Northern Buffalo Grove … 3.3 inches
Glenview 3.3 inches
Elgin … 3.5 inches
Cary … 3.6 inches
Schaumburg at Woodfield Mall … 3.3 inches
Oak Park … 3.3 inches
Wheaton … 3.2 inches
Naperville … 3.3 inches
Joliet (downtown) … 3.3 inches
Park Forest … 3.1 inches

Downtown Chicago … 3.3 inches

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Winds will be highest from about 5:00 a.m. until 2:00 p.m., and are expected to peak from about 10:00 a.m. until noon.

…STRONG WEST SOUTHWEST WINDS EXPECTED TO DEVELOP LATE TONIGHT
AND CONTINUE ON MONDAY…

WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF…ROCKFORD…BELVIDERE…WOODSTOCK…
WAUKEGAN…OREGON…DIXON…DEKALB…AURORA…WHEATON…CHICAGO…
OTTAWA…OSWEGO…MORRIS…JOLIET…KANKAKEE…PONTIAC…
WATSEKA…PAXTON…GARY…VALPARAISO…MOROCCO…RENSSELAER…
FOWLER
730 PM CST SUN FEB 10 2013 /830 PM EST SUN FEB 10 2013/

…WIND ADVISORY IN EFFECT FROM MIDNIGHT CST /1 AM EST/ TONIGHT
TO 4 PM CST /5 PM EST/ MONDAY…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND
ADVISORY…WHICH IS IN EFFECT FROM MIDNIGHT CST /1 AM EST/
TONIGHT TO 4 PM CST /5 PM EST/ MONDAY.

* TIMING…WINDS WILL INCREASE OUT OF THE SOUTHWEST AFTER MIDNIGHT
TONIGHT AND WILL CONTINUE OUT OF THE WEST SOUTHWEST ON MONDAY.

* WINDS…25 TO 35 MPH WITH GUSTS OF 45 TO 50 MPH.

* IMPACTS…WINDS THIS STRONG CAN CAUSE MINOR PROPERTY DAMAGE AND
MAKE TRAVEL HAZARDOUS…ESPECIALLY FOR HIGH PROFILE VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH…OR
GUSTS BETWEEN 45 AND 57 MPH…ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT…ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

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Pictures from this afternoon and evening …

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1111 AM CST THU FEB 7 2013

COOK-
INCLUDING THE CITY OF…CHICAGO
1111 AM CST THU FEB 7 2013

…WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
9 PM CST THIS EVENING…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW…WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 9 PM CST THIS EVENING.

* TIMING…RAIN WILL GRADUALLY CHANGE OVER TO SNOW BY MID TO LATE
AFTERNOON IS EXPECTED TO DEVELOP BY MID TO LATE AFTERNOON IN
TIME FOR THE EVENING RUSH. THE SNOW WILL CONTINUE THIS
EVENING…BEFORE TAPERING OFF.

* ACCUMULATION…SNOW ACCUMULATIONS OF 1 TO 4 INCHES ARE POSSIBLE
WITH SOME ISOLATED HIGHER AMOUNTS. THE GREATEST SNOW
ACCUMULATIONS ARE EXPECTED ACROSS NORTHERN COOK COUNTY.

* OTHER IMPACTS…THE THREAT FOR A PERIOD OF HEAVY SNOW COULD
RESULT IN REDUCED VISIBILITIES UNDER A MILE AT TIMES AND RAPID
ACCUMULATION ON AREA ROADS DURING THE AFTERNOON COMMUTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

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Today
Rain or freezing rain before 1pm, then rain, snow, and sleet between 1pm and 4pm, then rain after 4pm. High near 36. South southeast wind 5 to 10 mph becoming east northeast in the afternoon. Chance of precipitation is 100%.

Little or no ice accumulation expected. Total daytime snow and sleet accumulation of less than a half inch possible.

Tonight
Rain and snow before 1am, then a chance of snow. Low around 27. North northwest wind 5 to 15 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

WINNEBAGO-BOONE-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
INCLUDING THE CITIES OF…ROCKFORD…BELVIDERE…OREGON…DIXON…
DEKALB…AURORA…WHEATON…CHICAGO
600 AM CST THU FEB 7 2013

…FREEZING RAIN ADVISORY IN EFFECT UNTIL 10 AM CST THIS
MORNING…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FREEZING
RAIN ADVISORY…WHICH IS IN EFFECT UNTIL 10 AM CST THIS MORNING.

* TIMING…LIGHT FREEZING RAIN BEFORE 10 AM.

* ICE ACCUMULATIONS…GENERALLY LESS THAN A TENTH OF AN INCH.

* OTHER IMPACTS…PAVEMENT AND SOIL TEMPERATURES ARE BELOW
FREEZING…SO ANY LIQUID PRECIPITATION WILL LIKELY FREEZE ON
CONTACT AND RESULT IN ICY AND DANGEROUS TRAVEL CONDITIONS ON
UNTREATED ROADWAYS. SIDEWAYS AND WALKWAYS COULD ALSO TURN TO
SHEETS OF ICE MAKING WALKING DIFFICULT AND POTENTIALLY
DANGEROUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

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Tonight
A chance of freezing rain before 4am, then rain or freezing rain likely. Cloudy, with a low around 30. South southeast wind 5 to 10 mph. Chance of precipitation is 60%. Little or no ice accumulation expected.

Thursday
Rain or freezing rain likely before 7am, then rain, possibly mixed with snow and sleet between 7am and 1pm, then rain, possibly mixed with snow after 1pm. High near 35. South southeast wind 5 to 10 mph becoming east northeast in the afternoon. Chance of precipitation is 100%. Little or no ice accumulation expected. Little or no snow accumulation expected.

Thursday Night
Rain and snow before 1am, then a slight chance of snow between 1am and 4am. Low around 27. North wind 5 to 10 mph increasing to 10 to 15 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Lake County and McHenry County are now under a Winter Weather Advisory, while counties just above the Wisconsin state line have a Winter Storm Warming issued.

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
514 PM CST WED FEB 6 2013

WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
514 PM CST WED FEB 6 2013 /614 PM EST WED FEB 6 2013/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS…
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE…TONIGHT.

MIXED PRECIPITATION WILL BEGIN TO OVERSPREAD THE REGION IN THE
PREDAWN HOURS. RAIN…FREEZING RAIN…AND SNOW MAY LEAD TO
HAZARDOUS CONDITIONS FOR THE MORNING COMMUTE…MAINLY NORTH OF
INTERSTATE 80.

.DAYS TWO THROUGH SEVEN…THURSDAY THROUGH TUESDAY.

SNOW OR WINTRY MIX OF PRECIPITATION IS EXPECTED
THURSDAY…ESPECIALLY NEAR THE WISCONSIN BORDER WHERE SOME SNOW
ACCUMULATION IS LIKELY.

Winter Weather Advisory
URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
846 PM CST WED FEB 6 2013

MCHENRY-LAKE IL-
INCLUDING THE CITIES OF…WOODSTOCK…WAUKEGAN
846 PM CST WED FEB 6 2013

…WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM TO 9 PM CST
THURSDAY…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER
WEATHER ADVISORY…WHICH IS IN EFFECT FROM 4 PM TO 9 PM CST
THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* TIMING…ACCUMULATING WINTRY PRECIPITATION IS POSSIBLE AS EARLY
AS LATE THURSDAY AFTERNOON…BUT MORE LIKELY THURSDAY EVENING.

* PRECIPITATION…SOME LIGHT SLEET…SNOW…OR POSSIBLY A TOUCH OF
FREEZING RAIN IS POSSIBLE LATER TONIGHT INTO EARLY THURSDAY
MORNING…BEFORE TEMPERATURES RISE ABOVE FREEZING CHANGING THE
PRECIPITATION TO ALL RAIN. WITH TEMPERATURES NEAR OR JUST ABOVE
FREEZING THE CHANCE OF ANY APPRECIABLE ACCUMULATION LATE TONIGHT
INTO EARLY THURSDAY MORNING APPEARS LOW. RAIN IS EXPECTED TO MIX
WITH AND CHANGE OVER TO WET SNOW LATE THURSDAY AFTERNOON OR
THURSDAY EVENING. A PERIOD OF MODERATE SNOW IS POSSIBLE THURSDAY
EVENING WITH SOME SNOW ACCUMULATION EXPECTED AT THAT TIME.

* ACCUMULATION…SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE POSSIBLE
THURSDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

Become a fan of The Cardinal weather page. Submit your pictures or just stay up-to-date on weather topics — go direct to the Arlington Cardinal Weather photos. For a list of all of The Cardinal Facebook fan pages, go to Arlingtoncardinal.com/about/facebook …