Monday, December 16, 2013

Weekend Snow Update

I know some people around the Quad Cities are already asking about a big snowstorm this coming weekend so here goes - after a nice warmup Tuesday through Thursday (especially Thurs) we're looking at another chance of snow this weekend.  If this was a weekend in January it'd be one thing but this is a HUGE travel weekend just ahead of Christmas.  That's why the forecast this week is critical for a lot of people...

As I write this blog, it's extremely important to note there will be model fluctuations before the storm arrives this weekend.  And those model changes could be significant...it's still possible we could end up with NO SNOW this weekend.  On the other hand, it's also possible we could see heavy snow.  That's why when you watch the forecast right now the chance for snow is at 40%, the closer we get to this weekend that chance for snow could very well go up. 

The weather models we look at are much more accurate as we get closer to an event, and eventually the models will converge on a somewhat of a solution.  Over the last 36 hours one model the Euro has started spreading a lot of snow across the Midwest on Sunday.  The GFS, another key weather model for forecasting medium to long range, has been a little slower to pick up the snowy trend...but as of tonight it's starting to increase its snow output and put the storm a little further North. 


Sunday Morning Euro
Sunday Night Euro
 

Monday Morning Euro

It's important to note the trends on the Euro model, the last 3 runs are pictured above with the most recent run labeled as Euro Monday morning.  We'll get another run on this model later tonight but tonight's GFS model has now arrived and the snow output is here:

Monday Night GFS


Notice the drastically lighter snow totals and the further south placement of the storm...While it's far too early to say how much snow we'll see this weekend the possibility is there for some heavy snow across portions of the Midwest and if you have travel plans you'll want to pay close attention to CBS4 News this week and cbs4qc.com/weather as well as this weather blog! 

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