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*WINTER STORM WATCH IN EFFECT WED NIGHT & THU*

Rain will fall heavily at times across the Washington Region on Wednesday afternoon. Localized flooding is possible.

Rain will change over to heavy, wet, accumulating snow Wednesday night and Thursday. Temperatures will plummet into the 20s by Thursday morning causing snow-covered roads and dangerous travel. I expect widespread closings on Thursday.

Record lows are likely overnight Thursday with temperatures plummeting into the single digits! Icy roads will cause travel delays during the Friday morning commute.

Thursday’s Winter Storm Could Be Biggest of Season for Reagan National Airport; High Probability of Widespread Closings & Dangerous Travel Conditions

March 3, 2015
DCstorms.com Snowfall Potential through Thursday Evening across the immediate Washington Area.

DCstorms.com snowfall potential through Thursday Evening across the immediate Washington Area.

I just looked at the latest ensemble forecast model runs for the Euro and others and this storm is looking quite nasty across the Washington Area.  This could be the biggest snowfall at Washington’s Reagan National Airport with 5″ or more looking likely even on the tarmac there. For Washington’s immediate suburbs… this will be a humdinger of a snow storm, similar to the February 21st event, but with more widespread snowfall totals nearing that 8 to 10″ range across our eastern suburbs.  For this reason, I had to make a slight update to my maps.  And to show my appreciation for you, I listed some more precise suburban locations (please share on Facebook).

DCstorms.com Snowfall potential forecast through Thursday evening across the Washington Region.

DCstorms.com snowfall potential through Thursday evening across the Washington Region.

Conditions during the pre-dawn hours on Thursday will deteriorate rapidly as temperatures plummet from near freezing (2 AM) into the middle to upper 20s by rush hour (5 to 8 AM) and then into the upper teens by the dinner hour (4 to 8 PM). Yes, our high temperature on Thursday will occur at midnight.  The weather pattern is looking like it will shift to a mild one in mid-March.  This could be our last winter storm of the season… let’s enjoy it.  Spring is just around the corner!

 

Beware the Ides of March … High Impact Winter Storm Headed for Washington

March 3, 2015
Snowfall Potential through Thursday 6 PM.

Snowfall Potential through Thursday 6 PM.

Snowfall Potential through Thursday 6 PM.

Snowfall Potential through Thursday 6 PM.

Winter isn’t over … yet. Milder air will push into the Mid-Atlantic on Wednesday with a moisture-rich flow out of the Gulf of Mexico. Highs will rise into the upper 40s with periods of rain… heavy at times.   An arctic front will slide through the Washington Area Wednessday night before stalling off to our south and east.   Bitterly cold air will begin funneling into the DC Area overnight on Wednesday, changing the rain over to heavy, wet, accumulating snow.

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Some Forecast Models are Dropping 8″ of Heavy Wet Snow Wednesday Night & Thursday

March 2, 2015
Latest Canadian Snowfall Forecast; image courtesy Weatherbell

Latest Canadian Snowfall Forecast; image courtesy Weatherbell

A cold front will stall to our east on Wednesday night as a wave of low pressure rides along it.  Typically in March this set up can deliver heavy, wet, accumulating snow.   Several forecast models have been rather bullish over the Washington Area forecasting 5 to 8″ of snowfall.  Stay tuned for updates as we draw closer to this next winter storm.

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Heavy Wet Snow Possible Wednesday Night & Thursday

March 1, 2015
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7 PM Wednesday (Latest GFS) Image courtesy Tropicaltidbits.com

March is notorious for being fickle with warmth followed by snow storms. Wednesday will be one of the warmest days we have had in weeks with highs reaching the 50s.

However, an arctic front will approach and pass through the DC Area Wednesday night, stalling just to our east. Meanwhile a wave of low pressure may ride along the front possibly producing heavy, wet, accumulating snow Wednesday night into Thursday.

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Wintry Mix on Sunday

February 28, 2015
Latest GFS 7 AM Sunday, Image courtesy weatherbell

Latest GFS 7 AM Sunday, Image courtesy weatherbell

Snow will develop during the mid morning hours on Sunday. The snow will mix with sleet and change over to freezing rain during the afternoon.

One to two inches of snow is possible in the northern and western suburbs with up to one inch in DC before the change over to sleet and freezing rain.

Freezing Rain will then change over to rain during the evening hours as temperatures slowly rise into the middle 30s. Untreated roadways will be slippery and Winter Weather Advisories will likely be issued.

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