7:00 AM | **Tropical moisture from Michael interacts with strong cold front to produce heavy rains here later today...tumbling temperatures tomorrow**
Paul Dorian
6-Day Philadelphia Forecast
Today
Periods of rain with a possible thunderstorm, some of the rain will be heavy at times, breezy, tropical-like humidity, highs in the mid-to-upper 70’s
Tonight
Occasional rain and a possible thunderstorm or two, mainly before midnight, some of the rain will be heavy at times, windy, turning cooler towards morning, lows in the mid 50’s
Friday
Partly sunny, windy, cooler, less humid, near 60 degrees for afternoon highs
Friday Night
Partly cloudy, cold, cannot rule out a shower or two towards morning, mid 40’s for late night lows
Saturday
Partly sunny, breezy, quite cool, cannot rule out a few showers, mid-to-upper 50’s
Sunday
Mainly sunny, still quite cool, near 60 degrees
Monday
Mainly cloudy, cool, chance of showers, low-to-mid 60’s
Tuesday
Partly sunny, cool, chance of showers, upper 50's
Discussion
Hurricane Michael made landfall yesterday in the Florida Panhandle as a “major” category 4 system and today it will accelerate to the northeast as a tropical storm. Its tropical moisture field will interact with a strong cold frontal system advancing towards the east coast and the result will be some heavy rainfall today and tonight in the DC-to-Philly-to-NYC corridor. In fact, periods of rain and embedded thunderstorms into later tonight may end up resulting in a couple inches of rainfall in much of the I-95 corridor. By early Friday, post-tropical Michael will be working its way into the open Atlantic and the strong cold front will push through our region. Winds will pick up on Friday out of the northwest and much cooler and drier air will pour into the Mid-Atlantic region. For the first time this season, temperatures will drop into the 40’s for overnight lows beginning late Friday night/early Saturday morning and then again over the weekend. A fast-moving upper-level disturbance could throw a few showers our way late Friday night and Saturday before a dry, cool day ends the weekend on Sunday.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com