Wednesday, December 2, 2015

Mild and Mundane...

Public weather briefing

Following a very light snowfall event this morning and light snow on and off throughout today with temps in the 30s, we may expect a precipitation-free evening with lows dropping to 28.  The departure of a cold air mass moving to the east will mean mild days into next week with highs consistently in the low to mid 40s peaking on Saturday with a high of 47.  In addition to temperatures well above freezing, mostly-clear to clear conditions are expected to last throughout the forecast duration.  

Forecast 

Tonight. Mostly Cloudy with a low around 28.

Thursday. Mostly sunny.  High around 40.

Thursday night. Mostly clear with fog developing after midnight.  Lows around 25.

Friday. Fog in the morning followed by mostly sunny skies and a hight in the low 40s.

Saturday. Sunny with a high in the upper 40s.

Outlook for Sunday and Monday. Both days are expected to be mostly sunny with highs in the lower 40s. [CONFIDENCE: MEDIUM]

Forecast Discussion

The cyclone that has brought light snow to the midwest has moved out of the region but the cold pool it formed has lingered in the area and now slowly moves east.  With its departure, moderate low level winds will push warmer air into the region from the plains.  A high originating in the south will develop into an intensifying anticyclone as a ridge west of the Rockies moves eastward.  The high pressure center will move slowly east-northeastward into the weekend and will result in subsidence and more warm air advection for our region.  

As the short wave trough trailing behind the broad ridge moves in to the area Saturday, vorticity advection is forecasted to drive moderate ascent in the region but there will be inadequate moisture for precipitation.  

Alexander Fox

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