Sun is quickly being covered up by clouds racing into Indiana, and a hint of a clipper system that’s dropping some snow upstream.
Dopper 13 Radar is in winter mode and detects a fair amount of blue in northern Illinois and Iowa… indicative of snow mixing in with the rain.
A Skytrak13 WeatherBug camera in Sandwich, IL (southwest of Chicago) offers ground truth of what’s falling. This clipper will cut across the I-70 corridor overnight and deliver the first flakes of the season… especially for areas along and north of I-70.
It’s beginning to rain in northwest Indiana, and all bets off for dry weather in the Indianapolis metro after 4pm. Colder air north of the clipper track changes rain to snow, and chances of seeing flakes increases after 8pm. It may precipitate hard enough to allow areas of all snow to see an accumulation on grassy surfaces/roof tops. But road surfaces will be too warm for accumulation and remain wet.
By 8am Wednesday the system zips out of the state… though some lingering flurries/snow showers are possible before sunrise tomorrow.
Indianapolis actually had a trace of snow last October 30th, but it’s been 20 years since the last “measurable” snow in the month of October. Many of you likely remember the big October storm of 1989 that dumped over 9″ in the city. Please share snow pics if you’re lucky enough to be in the sweet spot tonight.
The big story remains the unseasonably cold air. Today was our coldest start since April 20th, but the coldest night is a few days away. Record lows are in jeopardy Friday morning, when many areas drop into the low/mid 20s. An updated 7 day forecast is coming shortly – Sean Ash