Thundersnow, Gale-Force Winds Predicted for La Grange, Western Springs Area

Thundersnow means higher snow accumulations when the storm hits our area; winds are expected to be up to 30-40 miles per hour, gusting as high as 55, by Thursday night.

Those of us following the weather predicting our first significant snowfall on Thursday knew the area would first be hit with rain. In fact, the National Weather Service forecast mentions rain first for the La Grange area.

"Rain (is) likely, then rain and possibly a thunderstorm after midnight," the forecast states.

Locally, the NWS is based in Romeoville.

A second forecast, from the Northern Illinois Storm Chaser Forecasting Facebook page predicts thundersnow.

"Intense thundersnow will boost rates and totals over the area," the status states. "Chicago metro could get 3 inches south to 6 north all being blown around by 60 mph winds."

The page says the event will be short in duration.

By Thursday, the NWS forecast includes occassional rain before 3 p.m. then rain and blowing snow with winds gusting as high as 55 miles per hour ("gale" to "strong gale" on the Beaufort Wind Scale.) The NWS forecast also mentions thunder.

The tempuratures will rise to 47 by noon, but drop to about 37 for the rest of the day.

The chance of precipitation is 90 percent.

A full forecast can be found by clicking here.

Patch will update this story as conditions change.

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Joseph R. Martan December 19, 2012 at 07:14 PM
And the 1 p.m. weather report on WFMT stated that there will be little or no accumulation in the Chicago area - rain possible thunderstorms and some high wind - but negligible snow.
Darren McRoy December 19, 2012 at 07:17 PM
That's weather reports for you. As best I can tell, it depends on whether or not the precipitation lasts into Thursday night, because it's going to get cold in a hurry. I'd also keep an eye out for black ice!
Mouse December 19, 2012 at 07:19 PM
Bigger problem is what happens to what does come down when the temperature rapidly drops into the teens Thursday night. I'd rather have 6" of snow than 1/2" of ice on everything. Plus, if this thing shifts its track 100 miles south we'll get what is predicted for Wisconsin...a blizzard. Sometimes the media hysteria is warranted.


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