GFS 72-Hour Precip forecast

Darker colors into green are heavier amounts.

Potential Snowstorm GL/OV Dec. 15

This is a bulletin for a potential snowstorm for the Great Lakes and Ohio Valley for December 15-16th.

Right now, the GFS is indicating a storm driving in the Tennessee/Kentucky area, similar to one of the tracks printed out by the models in recent history.

This is likely the result of the jet stream diving south, giving the storms opportunities to beat up areas such as Springfield, IL or St. Louis, MO.

This is combined with the NWS which indicates a 'chance of snow'. I have come to learn that this usually indicates some form of snowstorm

MW/GL Snowstorm 12/10 5:07pm

Current thinking is that confidence remains moderately low. This is due to varying model runs and the SREF model members shifting southward as the day has gone on.

If the models shift at least a bit farther south, it means more and more snow for the Chicago Madison areas.

GFS E-WALL 72 hour Precip.

Areas of Dark blue and green indicate heavier amounts.

Notice

I realize that the STORMTRACKER page is offline. I am reconstructing it with new data.