07/29/2025

 Make sure you wear a hat As well as light colored clothing and use plenty of sun screen with a high SPF. As UV indexes are going to be extremely high for most of this week.

Yesterday was hot and humid and today is going to be more of the same, with temperatures looking to be slightly warmer then it was yesterday. Air temperatures will be in the mid 80s°F to the mid 90s°F  with With dew points in the 70s to near 80 °F, well produce heat indexes in the mid 90s °F into the hundred °F. The surface chart shows high pressure overhead and in control producing a few clouds and a lot of sun. It also shows an approaching cold front coming from the north and west.  

To add insult to injury The region is also going to be dealing with wildfire smoke from central Canada This will be especially true for parts of Pennsylvania down into the I-95 corridor between DC and New York City, where the smoke will likely reach almost to the ground.

Wednesday the cold front with a prefrontal trough will be slowly dropping south and enter the region; bringing the chance for scattered rain showers and thunderstorms. The storms will be dropping into northern New York State and northern New England late morning to early afternoon. The front is going to be crawling its way south.  Out ahead of all this there will be a chance for a few isolated showers. Then during the afternoon, as the line is dropping south and east across the region; we will see more in the way of widespread rain showers and thunderstorms develop. Some of these thunderstorms will be strong too severe with the main danger being damaging wind gust, heavy downpours, frequent vivid lightning and a chance for moderate to large hail.The best chance for severe storms will be during the afternoon into Wednesday night.  Currently the storm prediction center has a Marginal Risk for severe weather across New Jersey, eastern Pennsylvania, southeast New York State and through southern and central New England. One caveat is going to be when the wind shift to the west it will drive a lot of this Canadian wild smoke out of here.

North of the frontal boundary it will cool off for Thursday and humidity will drop off sharply. The cooler temperatures and lower humidity values last for Friday and Saturday. northern New York State and northern New England should be mostly dry With only a slight chance for a few isolated showers.  But south of the boundary it is going to remain hot and humid for Thursday, with scattered showers and isolated thunderstorms possible. I can't rule out a few thunderstorms on the strong side. 

As the front Pushes itself south on Friday It is going to be slowing down even more and stall. Right now the front looks too stall over extreme southern New England back down across long island into New Jersey and southeast Pennsylvania. We're going to see low pressure develop along this front of boundary late Thursday into Friday. This will produce more scattered rain showers and thunderstorms, rain could be heavy at times for parts of the Northern Middle Atlantic.  By. Later Friday, the ridge should be south of Maryland and Delaware as high pressure builds into the region. allowing for the Middle Atlantic to feel some heat relief and much lower humidity as dry Canadian air pushes in by Saturday with high pressure overhead.  So for the next couple of days drink plenty of fluids especially water and limit your time outdoors.

The real question us going to be how far south can that front boundary  get.

For those who aren't a fan of the heat, it does look like next week is going to be overall much cooler than it has been for the last few weeks; with temperatures running 5°F to perhaps as much as 10°F below average.  With high pressure sitting over the region for large part of next week We should get a some reprieve  from all the rain we've been seeing.