U.S. Severe Weather Forecast (Convective Outlook)

Day Three

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Storm Prediction Center ac 270453 

Day 1 convective outlook 
National Weather Service Storm Prediction Center Norman OK 
1053 PM CST Wednesday Nov 26 2014 

Valid 271200z - 281200z 

..no thunderstorm areas forecast... 

thunderstorms are not expected across the United States Thursday. 

..Pacific northwest... 

Weak pre-frontal convection will likely develop across portions of 
British Columbia later today ahead of very cold air mass that will eventually 
settle into the northwestern portions of the Continental U.S.. while a lightning 
strike cannot be ruled out with this activity just north of the 
international border...convection should remain too shallow across 
Washington to warrant a meaningful threat of thunderstorms. 

.Darrow/Gleason.. 11/27/2014 

Mesoscale Discussion

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sels mesoscale discussion 
Storm Prediction Center mesoscale discussion 270358 

Mesoscale discussion 1958 
National Weather Service Storm Prediction Center Norman OK 
0958 PM CST Wednesday Nov 26 2014 

Areas affected...southeastern and eastern ME 

Concerning...heavy snow 

Valid 270358z - 270800z 

Summary...snowfall rates locally exceeding 1" to 1.5" per hour will 
continue over the next few hours...but should continue gradually 
diminishing overall. 

Discussion...latest radar loop shows steadier/widespread snow 
gradually shifting northeastward out of ME at this time...with more banded -- but 
still locally heavy -- snow lingering over much of eastern New York and New 
England. As the upper vorticity maximum now crossing southern New England 
continues moving northeastward -- thus yielding a decrease in qg ascent 
across the ME vicinity...expect overall coverage and intensity of 
snowfall to trend downward with time into the overnight hours. 
However...snowfall rates locally in excess of 1" to 1.5" per hour 
will continue locally for the next few hours within heavier bands 
across portions of northern and eastern ME -- near and north of the track of the 
middle-level system. 

.Goss.. 11/27/2014 

..please see www.Spc.NOAA.Gov for graphic product... 


Latitude...Lon 45496729 44876700 44316958 44937016 45846910 46256825 
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