Happy Friday! After the drenching downpours yesterday, more unsettled weather is in store today. Shortwave energy and a cold pool aloft associated with a large upper-level low over the Northeast will be swinging through region today. This will cause more lift and instability for some scattered showers to develop by this afternoon.
Happy Thursday! Low pressure currently over the Ohio Valley is attempting to push warm front north form Mid-Atlantic region. But instead a triple-point low will form over Mid-Atlantic region, along the warm front. A strong low-level jet, mid-level vorticity, low-level moisture convergence with firehose of Atlantic and subtropical moisture will lead another rounding of heavy rain with embedded thunderstorms. Especially south and west of NYC.
After nice Spring weather made an appearance on Wednesday, things are about to quickly go downhill during the overnight and into Thursday. A very expansive and classically synoptically deepening storm system will trek its way towards our area. With it, a few rounds of heavy rain, rumbles of thunder, and flash flooding are likely.
The storm will cut itself off from the atmosphere at the mid-levels, which allows synoptic features for ascent to remain in-place for a longer period of time. Thus, unlike Tuesday where it was one quick wave of heavy rain with the warm front and then only isolated to scattered showers and thunderstorms behind it, this storm should feature multiple waves of heavy bands of rain that last a decently long time.
Similar to Tuesday, however, is the evolution of a warm front out ahead of a system pushing our way and tapping into a low-level jet for lift and moisture. This is how the first batch of rain will move into the area during the late-overnight and early-morning hours.
Good afternoon! This afternoon will continue to be feature more pleasant weather. Sunshine will be mixed with clouds over parts of the region and winds will remain light out northwest. High temperatures should reach the upper 50s to lower 60s.
