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By Chris White

Weather Blog: Since Fredericksburg resides "in the seam" between the Richmond VA and Washington DC media markets this blog is a look at the weather from a Fredericksburg-centric point of view.

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Back door front Wednesday and heavy rain Thursday

The eastern and western halves of the Old Dominion have very different beginnings to this Wednesday. The low overcast and fog in the east this morning are both readily recognizable in the visible satellite view:0700 vis sat imageThis is from a back door front that has been oozing down the coast from New England. The easterly winds behind this boundary are dragging in cooler and moister air off the Atlantic to blanket Fredericksburg this morning. The 8 a.m. surface map shows this as well:

92fwbgus

Today will thus be cloudier and temperatures much cooler than yesterday. The official NWS Sterling forecast high for today is 81 degrees but I think the thermometer will struggle to reach the upper 70s. This front will retreat back northward as the day progresses. As it reapproaches the ‘Burg from the south it will trigger storms. Thus between 4 and 5 p.m. watch out for more thunderstorms to arrive with lightning, possibly large hail, and gusty winds.

Thursday the cold front approaching from the west will pump more moisture northward into our region. This will create conditions for LOTS of rain especially overnight into Friday morning. The ‘Burg could see about an inch of precipitation but that total will quickly ramp up in counties just to the west of the city. Up to 4 inches of rain can be expected near the Blue Ridge mountains by Friday morning so flash flooding may become an issue. Severe storms may also materialize late Thursday afternoon as well.

Thus a busy time weather-wise is on the near horizon. And I will mention briefly here that the Weather Blog will shift focus for a couple of weeks starting this Sunday. More on that in Friday’s blogpost.

 

Permalink: http://news.fredericksburg.com/weather/2014/05/14/back-door-front-wednesday-and-heavy-rain-thursday/