A Winter Storm Warning goes into effect this evening and includes all of our Indiana counties and most of our Illinois counties. (warning in pink, winter weather advisory in purple)
The first significant winter weather system of the season has already started to move to our Illinois counties in the form of sleet. Temperatures are drastically dropping and with colder air moving in already, snow totals could potentially be a little higher. Here is what we are looking at right now:
Tonight: Sleet will begin to mix with snow around 9-10 o’clock this evening for our counties along and north of I-70. Where the sleet transitions to snow first, higher snowfall accumulations through the overnight hours can be expected. Locations south can expect ice accumulation between 0.10″ – 0.20″ with snow on top of that.
Early Morning Hours Friday: Light wintry precipitation will continue south of I-70 in the early morning on Friday, but there will be a brief break north. Preliminary accumulation totals will be 0.10″ – 0.20″ of ice south of I-70 + 1″ – 2″ of snow. North, 0.10″ ice + 1″ – 3″ of snow.
Friday Morning/Afternoon: Moderate to heavy snow bands will build in during the morning hours Friday with possibly a wintry mix southeast (including Knox-Daviess-Martin-Owen counties). Snow showers will continue through the afternoon Friday and start to taper of from west to east after 5 p.m. EST.
Snow exits the Wabash Valley by Friday evening. Here is 10 p.m. EST on Futurecast:
- Northern portions of the Valley (northern Edgar-Vermillion-northern Parke): 1” – 3” Mainly snow
- I-70 Corridor (Vigo-Clay-Putnam-Owen-northern Sullivan IN) (Clark-Coles-Jasper IL): 3” – 6” + Thin Icing
- South of I-70 (southern Sullivan-Greene-Knox-Daviess-Martin IN) (Lawrence-Richland IL): 5” – 7” + 0.10-0.25” Ice