WINTER WEATHER ADVISORY: (Update) Snow Accumulation 1.0-1.5 Inches By Morning Rush Hour May Be Over-Estimated; Drizzle by Afternoon

LESS THAN 1 INCH SNOW ACCUMULATION EXPECTED WEDNESDAY MORNING

Quick snow about 3:00 a.m. to 5:00 a.m. with accumulation of 1.0 to 1.5 inches. Precipitation will be mixed from about 6:00 a.m. to noon Wednesday with some ice accumulation. Precipitation will change to all drizzle by about 12:00 p.m.

UPDATE: Significant snowfall did not begin until after 4:00 a.m. Radar showed a “hole” of no precipitation over Arlington Heights and the northwest suburbs overnight. Also, the snow/no-snow edge sat approximately over Lake Cook Road, with greater snow amounts in Lake County and McHenry County and lesser snow amount south of Lake Cook Road. While there may be some intense snowfall, the snow is not likely to accumulate more than an inch as the snow turns to freezing drizzle and then drizzle in the Arlington Heights area.

At 5:50 a.m. there was no accumulation of snow on black asphalt, and there was about 0.125 inch accumulation of snow on concrete surfaces. Significant snowfall may end by 7:00 a.m.

Weather Radar (also nexrad.chgowx.com) shows snow in central Illinois and northwest Illinois, that is not making much progress toward Chicagoland at 10:30 p.m.








 O’HARE FORECAST … 

Tonight: Snow, mainly after 3am. Low around 27. East wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of around an inch possible.

Wednesday: Freezing rain, possibly mixed with snow before noon, then drizzle likely. High near 35. Breezy, with an east wind 10 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.2 of an inch possible. New snow accumulation of less than a half inch possible.

Wednesday Night: A slight chance of drizzle before midnight. Mostly cloudy, with a low around 25. West southwest wind around 15 mph, with gusts as high as 25 mph.

Thursday: Mostly sunny, with a high near 34. West wind 5 to 10 mph, with gusts as high as 15 mph.

Thursday Night: Mostly clear, with a low around 17. West wind around 5 mph becoming calm in the evening.

Friday: Mostly sunny, with a high near 38.

Friday Night: A chance of freezing rain between midnight and 5am, then a chance of rain after 5am. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

Saturday: Rain likely, possibly mixed with freezing rain, becoming all rain after 7am. Cloudy, with a high near 42.

Saturday Night: Rain. Cloudy, with a low around 35.

Sunday: A chance of rain and snow before 5pm, then a chance of snow. Cloudy, with a high near 38.

Sunday Night: Mostly cloudy, with a low around 20.

Monday: Mostly sunny, with a high near 32.

Monday Night: A chance of snow. Mostly cloudy, with a low around 22.

Tuesday: A chance of rain and snow. Mostly cloudy, with a high near 37.

Winter Weather Advisory
URGENT – WINTER WEATHER MESSAGE
National Weather Service Chicago IL
932 PM CST Tue Feb 19 2019

ILZ005-006-012>014-201145-
/O.CON.KLOT.WW.Y.0014.190220T0900Z-190220T2100Z/
McHenry-Lake IL-Kane-DuPage-Cook-
Including the cities of Woodstock, Waukegan, Aurora, Elgin,
Wheaton, and Chicago
932 PM CST Tue Feb 19 2019

…WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 3 PM
CST WEDNESDAY…

* WHAT…Snow mixing with then changing to light freezing rain or
freezing drizzle expected. Total snow accumulations of up to
one inch and ice accumulations of one tenth to two tenths of an
inch expected.

* WHERE…Lake IL, McHenry, Cook, Kane and DuPage Counties.

* WHEN…From 3 AM to 3 PM CST Wednesday.

* ADDITIONAL DETAILS…Plan on slippery road conditions. The
hazardous conditions could impact the morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Expect slippery
roads and limited visibilities, and use caution while driving.

 LAKE TEMPS … 

SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
910 AM CST Tue Feb 19 2019

LAKE MICHIGAN WATER TEMPERATURES…

CHICAGO SHORE……….34.

CHICAGO CRIB……….32.

MICHIGAN CITY……….33.

&&

M IS FOR MISSING DATA THAT IS NORMALLY AVAILABLE.

THE MICHIGAN CITY WATER TEMPERATURE SENSOR IS LOCATED AT A WATER
INTAKE ONE MILE OFFSHORE AND 60 FEET BELOW WATER SURFACE. IT IS READ EVERY DAY OF THE YEAR.

february.chicagoweatherstation.com

Arlingtoncardinal.com/radar

Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.

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