Snow Possible Sunday

January 21, 2015: We haven’t seen much snow so far this winter and our next best chance to see some snow fall is going to be Sunday afternoon. Lets go ahead and take a look at what several models are displaying for the possible activity Sunday afternoon. Here is the GFS model output on the College of DuPage’s weather lab page:

cod gfs

The GFS is showing a weather system moving over the Stateline for Sunday afternoon. The model output has the heavier precipitation tracking over the Stateline in the latest model run. The good news for snow lovers is that models are showing temperature profiles below freezing, which means the precipitation associated with the system would in fact be snow. So now lets compare the GFS model output to the NAM model output and see if the two models agree:

nam model output

The NAM output has the heavier band of snow just going northeast of the Stateline in the latest model run. Both models so far have been pretty consistent with the placement of this system and we should see some snow Sunday afternoon. We will continue to track this system and will provide updates as we get closer to Sunday.

– 13 Weather Authority Nick Jansen

 

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This post was written by Alex Kirchner on January 22, 2015

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