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12/26/2016

Trio of Storms to Impact Final Week of December!

It felt a lot like spring today.  The high of 76 degrees, not only establishes a new record for the date, but also ties the warmest temp ever recorded during the month of December previously achieved on December 3, 1982.  

Now, we monitor a trio of storm systems that will be impacting our weather over this final week of the year with the first one arriving in the form of a cold front this evening bringing more good rains and and end to the extreme warmth. 

Satrad

The second two will make for a complicated forecast as we head into New years Eve and New Years Day. 

The upper low located over the North Pacific looks to deliver a shot of cold for the end of the workweek and into the start of the weekend.  

The storm off the Southern California Coast is then expected to ride in behind it increasing moisture and eventually bringing warmer temps too.  

The latest data from the GFS shows the progression of how New Years Weekend may unfold...

Gfs_pr6_slp_t850_ky_21

The GFS is currently showing precipitation developing Saturday morning with surface temps in the 30's and subfreezing temps a short distance above us. This would translate to a wintry mix of rain/snow and possibly sleet. 

Gfs_pr6_slp_t850_ky_22

From there, surface temps gradually warm as the cold air aloft pushes further north leading to a transition from wintry mix to a cold rain for our Kentucky and metro Indiana counties as the mixed bag continues into Central/Northern Indiana.

Gfs_pr6_slp_t850_ky_23

By Saturday night it's all rain across our area with heavy storms developing to our south into Dixie.

Gfs_pr6_slp_t850_ky_25

From there, rain comes to an end Sunday morning with temps well above freezing.

Gfs_pr6_slp_t850_ky_26

At this point it looks mild and mainly dry for New Years Day. 

So what do I think? 

While not a lock for wintry precip at this point, data suggest that the chance is increasing for the first half of the day on Saturday with the best chance for this occurring across Southern Indiana.  By late on New Years Eve precipitation should transition to all rain for the viewing area which is good news for those with travel plans as we ring in the new year.  However, it could be quite wet.  Stay tuned!  

Rick has a full update on WDRB News this evening.

WDRB Meteorologist Jeremy Kappell

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