WINTER WEATHER ADVISORY: EXPIRED

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The Winter Weather Advisory has expired …

Forecast at 11:15 a.m. February 20, 2011 …

This Afternoon: Rain and possibly a thunderstorm. High near 37. East southeast wind between 10 and 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Tonight: Rain before midnight, then rain or freezing drizzle likely. Low around 31. East northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Little or no ice accumulation expected.

Washington’s Birthday: Snow likely. Cloudy, with a temperature falling to around 28 by 5pm. East northeast wind between 5 and 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Monday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 18. East northeast wind between 10 and 15 mph, with gusts as high as 25 mph.

EXPIRED WINTER WEATHER ADVISORIES BELOW …

WINTER WEATHER ADVISORY: Temps Rising, Ice Replaced By Significant Rain

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
824 AM CST SUN FEB 20 2011

…A PERIOD OF MIXED RAIN AND SLEET THIS MORNING…

.AN AREA OF LOW PRESSURE IS EXPECTED TO PRODUCE SIGNIFICANT
PRECIPITATION ACROSS THE AREA TODAY. SURFACE TEMPERATURES HAVE
WARMED ABOVE FREEZING FOR THE OUTLOOK AREA WHICH ELIMINATES ANY
WIDESPREAD CHANCES FOR FREEZING RAIN. SLEET HOWEVER WILL CONTINUE
TO BE A THREAT THROUGH MID MORNING AND CAN CAUSE SLICK CONDITIONS ON THE ROADWAYS. TEMPERATURES ARE EXPECTED TO CONTINUE TO WARM ABOVE FREEZING ACROSS THE AREA THROUGH LATE MORNING…WHICH WOULD CAUSE PRECIPITATION TO CHANGE OVER TO ALL RAIN. IF TRAVEL IS PLANNED ACROSS THE AREA THIS MORNING STAY UP TO DATE ON THE LATEST WEATHER FORECAST AND ROAD CONDITIONS.

Radar at 9:30 a.m. indicates rain and embedded thundershowers over Arlington Heights. A band of freezing rain is indicated over the southern third of Wisconsin at 9:30 a.m.

OGLE-DE KALB-KANE-DUPAGE-COOK-LAKE IN-PORTER-
INCLUDING THE CITIES OF…OREGON…DEKALB…AURORA…WHEATON…
CHICAGO…GARY…VALPARAISO
824 AM CST SUN FEB 20 2011

…WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM CST THIS
MORNING…

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 10 AM CST THIS
MORNING.

* TIMING…A PERIOD OF SLEET WILL CONTINUE THROUGH MID
MORNING…BEFORE CHANGING OVER TO RAIN DURING THE LATE MORNING
HOURS.

* ACCUMULATIONS…SIGNIFICANT ACCUMULATIONS ARE NOT
EXPECTED…HOWEVER A COATING OF SLEET ON THE ROADWAYS CAN CAUSE
HAZARDOUS CONDITIONS FOR MOTORISTS.

* HAZARDS…SLEET CAN LEAD TO SLIPPERY CONDITIONS ON THE ROADWAY.

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.

OLD MESSAGE …

WINTER WEATHER ADVISORY: ICE BUILDUP TO .25 INCH POSSIBLE, Ice Is Accumulating on Streets

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
439 AM CST SUN FEB 20 2011

…A PERIOD OF SNOW AND SLEET FOLLOWED BY FREEZING RAIN THIS MORNING… SIGNIFICANT ICE ACCUMULATIONS UP TO A QUARTER INCH ARE POSSIBLE FROM ROCKFORD TO WAUKEGAN. Rockford and Waukegan are under a Winter Storm Warning. As of 8:30 a.m. no snow accumulation is showing at intersections in Lake County, Illinois (see TRAVELMIDWEST.COM — Camera Report Lake County)

AN AREA OF LOW PRESSURE IS EXPECTED TO PRODUCE SIGNIFICANT
PRECIPITATION ACROSS THE AREA TODAY. PRECIPITATION WILL BEGIN AS
A SHORT PERIOD OF SNOW AND SLEET EARLY THIS MORNING. THE SNOW MAY
BE HEAVY AND RAPIDLY ACCUMULATE ON AREA ROADS. A QUICK 1 TO 3
INCHES OF SNOW IS POSSIBLE ACROSS FAR NORTHERN ILLINOIS AND
NORTHWESTERN INDIANA THROUGH MID MORNING. THEREAFTER…WARMER MIDLEVEL TEMPERATURES WILL QUICKLY CHANGE THE SNOW AND SLEET TO A
PERIOD OF FREEZING RAIN. IT APPEARS THAT SIGNIFICANT ICE
ACCUMULATIONS UP TO A QUARTER INCH ARE POSSIBLE FROM ROCKFORD TO
WAUKEGAN. LIGHTER ICE ACCUMULATIONS ARE POSSIBLE FARTHER SOUTH
ACROSS CHICAGO. TEMPERATURES ARE EXPECTED TO WARM ABOVE FREEZING
ACROSS THE AREA THIS AFTERNOON…WHICH WOULD END THE THREAT FOR
ACCUMULATING ICE. IF TRAVEL IS PLANNED ACROSS THE AREA THIS
MORNING STAY UP TO DATE ON THE LATEST WEATHER FORECAST AND ROAD
CONDITIONS.

OGLE-DE KALB-KANE-DUPAGE-COOK-
INCLUDING THE CITIES OF…OREGON…DEKALB…AURORA…WHEATON…
CHICAGO

…WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TODAY…

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY.

* TIMING…A PERIOD OF SNOW SLEET WILL DEVELOP EARLY THIS
MORNING…BEFORE CHANGING OVER TO A PERIOD OF FREEZING RAIN.
FREEZING RAIN WILL CONTINUE THROUGH LATE SUNDAY MORNING AT WHICH
POINT TEMPERATURES ARE EXPECTED TO WARM ABOVE FREEZING ENDING
THE THREAT FOR FREEZING RAIN.

* ACCUMULATIONS…SNOW ACCUMULATIONS OF UP TO 2 INCHES ARE
POSSIBLE BEFORE THE CHANGE OVER TO FREEZING RAIN. LIGHT ICE
ACCUMULATIONS UP TO ONE TENTH OF AN INCH ARE POSSIBLE SUNDAY
MORNING.

* HAZARDS…SNOW AND FREEZING RAIN CAN LEAD TO HAZARDOUS TRAVEL
CONDITIONS AND LEAD TO POWER OUTAGES.

* IMPACTS…SNOW AND LIGHT ICE ACCUMULATION MAY LEAD TO SLIPPERY
ROADS AND SIDEWALKS.

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.

Radar indicated freezing rain across a band of northern Illinois from about mid-southern Cook County north to the Wisconsin and further north in southwest Wisconsin.

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