LAKE EFFECT SNOW: Radar shows lake effect snow in Wisconsin at about 8:55 a.m. [LIVE PRECIPITATION TYPE RADAR]: South side of Chicago could see 3-5 inches of snow while Arlington Heights might see 1-2 inches of snow. The heaviest snowfall in southern Cook County is expected between midnight and 5:00 a.m. The heaviest snowfall in Arlington Heights is expected between 5:00 p.m. and midnight (not as much Lake Effect Snow).
TEMPERATURE EXPECTED TO START DROPPING FROM 26 DEGREES AT 2:00 PM TO ZERO 8 AM TUESDAY.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
457 AM CST MON JAN 20 2014
ILZ014-201600-
COOK-
INCLUDING THE CITY OF…CHICAGO
457 AM CST MON JAN 20 2014
…HEAVY LAKE EFFECT SNOW POSSIBLE TONIGHT ACROSS PORTIONS OF
SOUTHERN COOK COUNTY…
PERIODS OF LIGHT SNOW ARE EXPECTED TO DEVELOP ACROSS THE AREA
LATER TODAY AS THE FLOW TURNS NORTHERLY OFF OF LAKE MICHIGAN.
LIGHT SNOW ACCUMULATIONS ARE EXPECTED WITH THIS ACTIVITY.
HOWEVER…AN INTENSE BAND OF HEAVY LAKE EFFECT SNOW IS EXPECTED TO
DEVELOP ACROSS SOUTHERN LAKE MICHIGAN LATER THIS EVENING. THERE IS
THE POTENTIAL THAT THIS HEAVY BAND OF SNOW COULD MOVE ONSHORE
ACROSS PORTIONS OF SOUTHERN COOK COUNTY FROM THE CITY OF CHICAGO
SOUTHWARD LATER THIS EVENING. IF THIS DOES OCCUR…THERE COULD BE
PERIODS OF HEAVY SNOW ACROSS SOUTHERN COOK NEAR LAKE MICHIGAN FOR
A FEW HOURS LATER TONIGHT BEFORE THE BAND OF SNOW SHIFTS EASTWARD
INTO NORTHWESTERN INDIANA.
INTENSE LAKE EFFECT BANDS OF SNOW…SUCH AS THAT EXPECTED TO
DEVELOP TONIGHT…CAN PRODUCE 2 TO 3 INCH PER HOUR SNOWFALL RATES
ACROSS LOCALIZED AREAS…ESSENTIALLY PRODUCING NEAR WHITE OUT
CONDITIONS AND ADVERSELY IMPACTING TRAVEL. HOWEVER…DUE TO THE
SMALL SCALE NATURE OF THESE BANDS OF SNOW…UNCERTAINTY REMAINS
HIGH AS TO THE EXACT AREAS THAT WILL BE IMPACTED. ANYONE PLANING
TRAVEL ACROSS THE REGION TONIGHT INTO TUESDAY IS ENCOURAGED TO STAY
UP TO DATE ON THE LATEST WEATHER INFORMATION.
Heaviest snow will occur between midnight and 5:00 a.m. in southern Cook County
Oak Lawn Forecast (for example) …
M.L. King Day/Monday
Snow likely, mainly after 3pm. Cloudy, with a temperature falling to around 25 by 5pm. North northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow showers likely, mainly before 3am. Cloudy, with a low around 6. Wind chill values as low as -8. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
AREAS CLOSER TO THE LAKE AND AS FAR NORTH AS A FEW BLOCKS NORTH OF THE I-290/I-94/I-90 CIRCLE INTERCHANGE COULD GET 3-5 INCHES. ARLINGTON HEIGHTS COULD SEE 1-2 INCHES OF ACCUMULATION OVERNIGHT.
Tuesday
Partly sunny and cold, with a steady temperature around 8. Wind chill values as low as -12. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around -2. Wind chill values as low as -17. West northwest wind around 10 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 17. Southwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday Night A 20 percent chance of snow. Mostly cloudy, with a low around 3.
Thursday
Mostly sunny, with a high near 11.
Thursday Night
Partly cloudy, with a low around -2.
Friday Mostly sunny, with a high near 21. Breezy.
Friday Night
A chance of snow. Mostly cloudy, with a low around 16. Breezy.
Saturday
A slight chance of snow. Mostly cloudy, with a high near 28.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 10.
Sunday
Partly sunny, with a high near 16.
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 …
20240105-1435future
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