Timing Tonight’s Thunderstorms

Enough sunshine broke through the clouds today across the Piedmont of Virginia and Maryland away from the water to allow for destabilization of the atmosphere.  The high resolution forecast models suggest a steady rain with embedded thunderstorms are likely across the Washington Area late this evening through the overnight.

The image above (courtesy Pivotal weather) shows a broken line of thunderstorms approaching Washington’s western suburbs between 9pm and midnight with the bulk of the steadiest rain forecast to exit the region on Sunday morning.  Another line of showers and storms may approach the DC Area on ….

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March Out Like a Lion

The upcoming Easter weekend is looking stunning with mostly sunny skies and high temperatures ranging from the middle 60s to near 70 degrees.  But first we have to get through a rather rainy Wednesday and January-like temperatures on Thursday and Friday.

The latest high-resolution NAM model (image above, courtesy Pivotal Weather) shows widespread showers with some embedded thunder beginning around 1pm on Wednesday and continuing through the tail end of the evening rush hour.

An arctic front will then approach the DC Area on Wednesday night while a strong area of low pressure develops and rides northward along the front changing rain over to snow in our western zones. Some snow may even mix…

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High Impact Flooding Event for DC Metropolitan Area

Numerous strong to severe thunderstorms are expected to break out this afternoon and evening across the DC Region, well in advance of the approach of tropical storm Isaias.  Thunderstorms could produce strong, damaging winds with an isolated tornado possible. The image from the latest high resolution NAM model below (courtesy, tropicaltidbits.com) shows a nasty line of storms moving into our region between 4 and 8pm.

The latest ensemble models (spaghetti chart below) shows confidence in a storm track from just east of Richmond, VA to the mouth of the Potomac before crossing over the Bay into Delaware and New Jersey.

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