By Justin Drabick
After setting a new record for the wettest month (12.97”) in August for Philadelphia, a 3 day stretch of dry weather is finally in the forecast. Once again, heavy showers and thunderstorms caused flash flooding in parts of the Delaware Valley.
Another 1-3” fell in a short amount of time on already saturated ground. Some small creeks and streams have overflowed their banks, such as the Frankford creek in NE Phila.
The cold front which is currently bringing the rain will slide through the region tonight.
Behind the front, a dry and cooler air mass associated with high pressure will build into the Delaware Valley. There still may be some clouds around on Monday but it will be dry with highs in the low 80s.
Expect abundant sunshine on Tuesday with highs near 80. Many areas may only be in the 70s. The high pressure system will then begin to move offshore on Wednesday. This will allow highs to bump up into the mid 80s with sunny skies. The next cold front will approach the region later on Thursday. While most of the day will be dry a shower or storm could pop up later in the day. Southerly winds will increase temperatures and the humidity a bit with highs in the mid to upper 80s.
The weekend looks to start of dry but all eyes will be focusing on Irene, the latest tropical system. The current forecast track sent Irene into south Florida on Thursday but the latest trend shifts the storm farther east, missing Florida. It is still very early in the game, so there will be changes in the forecast track over the next few days.
Areas from Florida to the Carolinas need to be watched for a possible landfall. The remnants of Irene are expected to track north and could impact the Delaware Valley sometime during the weekend or early next week. That could mean more rainfall and flood potential. Stay tuned!