WINTER STORM WARNING: Deep Snow, 9-10″ Forecast for Arlington Heights, Chicago Northwest; Falling Temperatures Friday through Saturday

Snow is approaching and developing a little ahead of schedule, and winds have been from the north instead of from the northeast as forecast. Snow may begin as early as 2-2:30 p.m., but will increase in intensity about 5-6 p.m. The greatest snowfall accumulation rates will occur between 8:00 p.m. Friday and 2:00 p.m. Saturday. Snowfall rates will taper Saturday afternoon, but will increase with Lake Effect snowfall rate increasing again by 9:00 p.m. Saturday and then decreasing by 6:00 a.m. before stopping by about noon Sunday.

Temperatures will steadily fall from about 30°F Friday at 3:00 p.m. to 11°F by Sunday at 8:00 a.m. East-northeast winds are forecast to be strong from 3:00 p.m. Friday until about 4:00 a.m. Sunday. The strongest wind gusts (33 MPH) are forecast to occur 9:00 a.m. to noon Saturday.

Weather Radar (also nexrad.chgowx.com) showed very light snow precipitation entering northwest Cook County from the west at 1:30 p.m.







 O’HARE FORECAST … 

This Afternoon: A 50 percent chance of snow, mainly after 3pm. Cloudy, with a high near 30. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

Tonight: Snow. The snow could be heavy at times. Patchy blowing snow after 3am. Low around 26. Blustery, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Saturday: Snow. Patchy blowing snow. Temperature falling to around 20 by 5pm. Blustery, with a northeast wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Saturday Night: Snow showers. Low around 11. Wind chill values as low as 1. Blustery, with a north wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Sunday: A 20 percent chance of snow showers. Partly sunny, with a high near 17. North wind 5 to 10 mph.

Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 8.

M.L.King Day: Mostly cloudy, with a high near 16.

Monday Night: Mostly cloudy, with a low around 16.

Tuesday: Snow likely before 11am, then rain and snow. Cloudy, with a high near 36.

Tuesday Night: A chance of snow. Cloudy, with a low around 21.

 LAKE TEMPS … 

SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
858 AM CST Fri Jan 18 2019

LAKE MICHIGAN WATER TEMPERATURES…

CHICAGO SHORE……….35.

CHICAGO CRIB……….32.

MICHIGAN CITY……….35.

&&

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.

 WINTER STORM WARNING … 

URGENT – WINTER WEATHER MESSAGE
National Weather Service Chicago IL
1021 AM CST Fri Jan 18 2019

…Accumulating Snow Tonight and Saturday Morning…

ILZ006-013-014-190030-
/O.CON.KLOT.WS.W.0001.190118T2100Z-190119T1800Z/
Lake IL-DuPage-Cook-Including the cities of Waukegan, Wheaton, and Chicago
1021 AM CST Fri Jan 18 2019

…WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO NOON CST SATURDAY…

* WHAT…Heavy snow expected. Total snow accumulations of 5 to 9
inches expected. Winds gusting 30 to 35 mph.

* WHERE…Lake IL, DuPage and Cook Counties.

* WHEN…Beginning late afternoon and increasing in intensity this evening and persisting through noon CST Saturday.

* ADDITIONAL DETAILS…Travel could be very difficult. Strong winds will result in blowing and drifting snow and could significantly reduce visibility. The hazardous conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency.

january.chicagoweatherstation.com

Arlingtoncardinal.com/radar

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

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