7:00 AM | ***Tropical moisture and the threat of heavy rain***
Paul Dorian
6-Day forecast for the Philadelphia, Pennsylvania metro region
Today
Mainly cloudy, a bit cooler-than-normal, maybe a late day shower or two, highs in the lower 80’s (normal high at PHL is 86 degrees); E-SE winds at 5-10 mph
Tonight
Mainly cloudy, mild, chance of showers and thunderstorms, lows in the upper 60’s
Tuesday
Mainly cloudy, still on the cool side of normal, muggy, chance of showers and thunderstorms, some of the rain can be heavy, near 80 degrees for afternoon highs
Tuesday Night
Mainly cloudy, mild, muggy, chance of showers and thunderstorms, some of the rain can be heavy, upper 60's for late night lows
Wednesday
Mainly cloudy, cooler-than-normal, muggy, chance of showers and thunderstorms, some of the rain can be heavy, lower 80’s
Thursday
Mainly cloudy, cooler-than-normal, chance of showers and thunderstorms, some of the rain can be heavy, lower 80’s
Friday
Partly sunny, a bit warmer, chance of showers and thunderstorms, low-to-mid 80’s
Saturday
Partly sunny, warm, chance of showers and thunderstorms, mid 80’s
Discussion
The week ahead looks to be very unsettled with multiple chances for showers and thunderstorms and some of the rain will be heavy at times. In fact, the rain chances this week will be enhanced by the addition of tropical moisture that will feed in from the southern states and localized flash flooding could become a widespread concern in the Mid-Atlantic regio. It will also be much cooler this week compared to last with high temperatures confined to the 80's and generally below-normal for the middle of August. The Atlantic Basin tropical scene remains quite active with "Fred" and "Grace" on the playing field. "Fred" has regained status as a tropical storm and should reach the western part of Florida's Panhandle by late tonight and then its moisture field will push northward into the Tennessee Valley and then the Mid-Atlantic region by mid-week. Meanwhile, "Grace" will take a more southerly path compared to "Fred" and likely end up in the southern/western part of the Gulf of Mexico.
Meteorologist Paul Dorian
Peraton
peratonweather.com