August 15, 2022

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Weather News & Forecast

11:15 AM | ***Heavy rain/thunderstorms a threat once again in parts of the Mid-Atlantic region from later this afternoon through tonight…DC-to-Philly the likely threat zone*** — Arcfield Weather

2 min read

In addition to the inhibiting factor for sustained heat in the Mid-Atlantic region, northwesterly flow aloft has kept the weather quite active as the periphery region of a strong high pressure system – often referred to as the “ring of fire” – has featured numerous embedded shortwaves traveling from northwest-to-southeast.  This kind of pattern has resulted in many upstream batches of showers and thunderstorms that then dropped south and east from the Upper Midwest to the Mid-Atlantic and that is on the table once again for later today and tonight likely to impact the region from DC-to-Philly.  Much like yesterday, an early morning “mesoscale convective system” or MCS developed over the Upper Midwest and its remnants are sliding through the Ohio Valley at mid-day and headed for the southern part of the Mid-Atlantic.  As a result, there is an enhanced chance for showers and thunderstorms in the DC metro region later today and perhaps later tonight across southeastern PA.  Any shower or storm in this humid air mass can produce some heavy rainfall amounts in a short period of time. 

The remainder of the work week is likely to see a continuation of this overall active weather pattern with little chance of sustained heat. With a meandering frontal system nearby, the chance of showers and storms will continue on Thursday and Friday, but a second front should clear the way for a decent weekend in the northeastern states.  In fact, the air mass headed to the Mid-Atlantic/NE US for the weekend could be quite comfortable and high pressure is likely to ensure that both weekend days will feature plenty of sunshine in the DC-to-Philly-to-NYC corridor.

Meteorologist Paul Dorian
Arcfield
arcfieldweather.com

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Paul Dorian

2022-07-06 15:09:11

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