A muggy and stormy day ahead!

 Surface chart and radar.

  

 

Today

Yesterday’s high pressure has moved east and is off the Coast. Behind it southwest winds with gust of 25 to 30 mph possible. All of this is driving in warmer and more humid air into the region. This is ahead of the cold front advancing out of the Ohio Valley, this afternoon waves of showers and thunderstorms will be moving across New York State and Pennsylvania. The front will be moving west to east and will be approaching and moving through New England this evening and the first part of the night.  Some of these storms may be strong to severe, with the main threats being damaging wind gusts and moderate to large hail, heavy downpours, the slow-moving storms especially if they train (moving over the same area) will lead to ponding on roadways and localized flash flooding, But and frequent lightning will also be a concern.  A tornado or two cannot totally be ruled out either. The Storm Prediction Center (SPC) has a Slight Risk for severe weather over Central and eastern New York State, into western New England, eastern half of Pennsylvania, into Maryland and Delaware, as I said they might, they have expanded into New Jersey.  The Marginal Risk covers a large part of the rest of the region.

The main time frame for severe storms will be between about 2 p.m. and 9 p.m.

Rest of the week

The front will slow down and stall near the Coast, New England, Southeast New York State, eastern Pennsylvania, southern New England, and Middle Atlantic will likely still be dealing with scattered showers and isolated thunderstorms.  The frontal boundary will be exiting Friday evening and early Friday night. Behind the front, skies will be clearing out, and temperatures will cool off and it will be turning less humid into the weekend. The last weekend of August is looking to be quiet and mainly dry, temperatures look to be seasonable, the day with the best chance for some passing showers will be Sunday. For the first week of September the heat ridge that has bring hot temperatures to the western US into the Plains. will have shifted east and bringing the same general conditions to the Southeast and up the Coast. This will likely be another heat wave, especially for the Middle Atlantic Region. The first half of next week, is looking to be unsettled with scattered showers and thunderstorms, some the storms on Tuesday could be strong to severe.

Eclipse

We will have a partial lunar eclipse Thursday night. With 96.2% of the lunar surface appearing reddish. The eclipse begins at 9:23 p.m., reaching a maximum at 12:12 a.m. Friday morning. The entire eclipse ends at 3:01 am. Cloud cover could be an issue for us, especially those in the eastern half of the region.