Lake Effect Snow Warning in Effect Overnight Until 9:00 AM for Eastern Cook County

An additional 0.6 inch of snow is expected overnight in Arlington Heights [LIVE PRECIPITATION TYPE RADAR] …

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
936 PM CST MON JAN 20 2014

…HEAVY LAKE EFFECT SNOW LIKELY OVERNIGHT INTO TUESDAY…
…BITTERLY COLD WIND CHILLS LIKELY LATE TONIGHT AND TUESDAY
MORNING…

.LAKE EFFECT SNOW HAS DEVELOPED INTO NORTHEAST ILLINOIS AND PARTS
OF NORTHWEST INDIANA AND WILL CONTINUE OVERNIGHT. A MORE ORGANIZED
BAND OF INTENSE LAKE EFFECT SNOW HAS TAKEN SHAPE OVER SOUTHERN
LAKE MICHIGAN AND WILL PROGRESS ONSHORE INTO PORTIONS OF NORTHEAST
ILLINOIS BY MIDNIGHT AND PERSIST THROUGH DAYBREAK…INCLUDING FOR
CHICAGO. THE NARROW BAND OF HEAVY LAKE EFFECT SNOW IS FORECAST TO
THEN PIVOT STEADILY EASTWARD INTO INDIANA SOMETIME TUESDAY
MORNING. THE BAND MAY THEN CONTINUE EAST INTO PORTER COUNTY LATE
TUESDAY MORNING INTO THE AFTERNOON. THE BAND OF HEAVY SNOW IS LESS
THAN 10 MILES WIDE AND IS EXPECTED TO REMAIN AS SUCH…SO
CONDITIONS WILL LIKELY VARY GREATLY OVER A VERY SHORT DISTANCE.

COOK-
INCLUDING THE CITY OF…CHICAGO
936 PM CST MON JAN 20 2014

…LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 9 AM CST
TUESDAY FOR EASTERN COOK COUNTY…

* TIMING…LAKE EFFECT SNOW WILL BECOME MORE HEAVY INTO OVERNIGHT
AND PERSIST THROUGH EARLY TUESDAY MORNING…POSSIBLY EVEN INTO
MID OR LATE MORNING.

* SNOW ACCUMULATIONS…LOCALIZED ACCUMULATIONS OF 6 TO 12 INCHES
ARE LIKELY NEAR THE LAKE…WITH ISOLATED TOTALS OVER A FOOT NOT
OUT OF THE QUESTION. ONLY MINOR AMOUNTS OF LAKE EFFECT SNOW ARE
EXPECTED OVER WESTERN PORTIONS OF COOK COUNTY.

* OTHER IMPACTS…WITHIN THE NARROW MOST INTENSE HEAVY SNOW BAND
SNOWFALL RATES IN EXCESS OF 2 INCHES PER HOUR ARE EXPECTED WITH
VISIBILITIES NEAR ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A LAKE EFFECT SNOW WARNING MEANS SIGNIFICANT AMOUNTS OF LAKE-
EFFECT SNOW ARE FORECAST THAT WILL MAKE TRAVEL VERY HAZARDOUS OR
IMPOSSIBLE. LAKE-EFFECT SNOW SHOWERS TYPICALLY ALIGN THEMSELVES
IN BANDS AND WILL LIKELY BE INTENSE ENOUGH TO DROP 1 TO SEVERAL
INCHES OF SNOW PER HOUR FOR SEVERAL HOURS. VISIBILITIES VARY
GREATLY AND CAN DROP TO ZERO WITHIN MINUTES. TRAVEL IS STRONGLY
DISCOURAGED. COMMERCE COULD BE SEVERELY IMPACTED. IF YOU MUST
TRAVEL…KEEP AN EXTRA FLASHLIGHT…FOOD…AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

LIVE RADAR | STORM TRACKS | CLOUDS INFRARED SAT | CLOUDS VISIBLE SAT (during daylight)

WunderMap® with Temperature/Wind Data || Google: Arlington Heights Temps | NE Illinois Temps

Full Screen Motion Weather Radar (Wunderground.com)

Midwest Cloud Cover with Arlington Heights Weather Forecast

SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with solar azimuth and trajectory, times for dawn, sunrise, solar noon, sunset, dusk …

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