WINTER STORM WARNING ACROSS ALL COUNTIES OF NORTHERN ILLINOIS
Snow in excess of 8″ is very likely for some areas in Chicagoland. In Arlington Heights, snow flurries and light snow will begin about 5 PM and increase in intensity about 7 PM Thursday February 8, 2018. The intense period of snowfall is forecast to continue until 5 PM Friday near Arlington Heights. Snow with lower snowfall rates is expected to continue until about 5 PM Saturday.
About 11 inches of snow accumulation is forecast for Arlington Heights by 5 PM Friday. Just over 11 inches of snow is forecast by midnight Friday/Saturday. Some areas in Arlington Heights or Chicagoland may experience more than 12″ of snowfall. The deepest snowfall might occur between I-90 and I-80. There could be a lot of variability of snow depth in a 50-mile range north-to-south. Targeting the precise accumulation in Chicagoland counties with certainty is not known this Thursday morning at dawn. The additional accumulation Saturday is also uncertain Thursday morning.
Winter Storm Warning in effect for this eve through Friday for counties along and north of I-80. Please see a previous post detailing this event. Snow continues into the day Saturday but favors areas SE of a Mendota to Chicago line. Snow finally exits later in the day Sunday. pic.twitter.com/wcSaILtYcN
— NWS Chicago (@NWSChicago) February 8, 2018
Winter storm to impact region this eve & Fri. Heaviest snow expected just north of I-80 up to WI where 6-10 inches psbl & localized 1 ft+ amounts. Sig impacts to the Friday morning commute & psbly Fri evening too. There will be a sharp cutoff of snow somewhere near/south of I-80. pic.twitter.com/kOKaDHQ8H4
— NWS Chicago (@NWSChicago) February 8, 2018
Some areas may see snowfall rates of more than 1 inch per hour. The Winter Storm will begin with air temperature about 18°F at 7 PM and the air temperature will continue to rise for a high of 28°F from noon to 2 PM on Friday. The snow will be dry and light, but possibly a little wetter than the last two or three snow systems — especially Friday afternoon and evening.
Winds will be light, ranging from 3 MPH to 9 MPH — initially from the South Southeast and shifting to East and North Northeast by 5 PM Friday. There be some gusty winds from the North Northeast about 3 PM to 5 PM Friday.
NWS Forecast
Today: A chance of flurries with a slight chance of snow before 11am, then a chance of snow after 5pm. Mostly cloudy, with a high near 22. Wind chill values as low as -1. West southwest wind around 5 mph. Chance of precipitation is 30%.
Tonight: Snow. The snow could be heavy at times. Temperature rising to around 22 by 5am. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Friday: Snow. The snow could be heavy at times. High near 28. North northeast wind 5 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Friday Night: A 40 percent chance of snow. Cloudy, with a low around 13. North wind 5 to 10 mph.
Saturday: A 40 percent chance of snow. Cloudy, with a high near 23. North wind around 5 mph.
Saturday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 11.
Sunday: Mostly sunny, with a high near 22.
WINTER STORM WARNING
URGENT – WINTER WEATHER MESSAGE
National Weather Service Chicago IL
254 AM CST Thu Feb 8 2018
…Long Duration Snow Event Likely This Evening through Friday
Evening…
Lake IL-DuPage-Cook-Will-Lake IN-Porter-
Including the cities of Waukegan, Wheaton, Chicago, Joliet, Gary,
and Valparaiso
254 AM CST Thu Feb 8 2018
…WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 9 PM
CST FRIDAY…
* WHAT…Heavy snow likely. Travel will be very difficult to
impossible at times, including during the morning commute on
Friday. Total snow accumulations of 6 to 10 inches are possible.
Localized areas may see snow in excess of one foot.
* WHERE…Portions of northwest Indiana and northeast Illinois.
* WHEN…From 6 PM this evening to 9 PM CST Friday.
* ADDITIONAL DETAILS…Be prepared for significant reductions in
visibility at times.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency.
february.chicagoweatherstation.com
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
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The Weather Channel has named this Winter Storm “Mateo” …
Winter Storm #Mateo has been named. We’re tracking the system as it scrapes the Midwest. +more #snow and rain is expected through the weekend. pic.twitter.com/LHPxSCO9BE
— AMHQ (@AMHQ) February 8, 2018