7:00 AM | *More heavy showers today with possible thunderstorms...severe thunderstorm threat for later tomorrow afternoon/early tomorrow night*
Paul Dorian
6-Day forecast for the Philadelphia metro region
Today
Mainly cloudy, warm, humid, more showers likely and possible thunderstorms, any shower or storm can produce heavy rainfall as they will be slow movers, highs not far from 80 degrees
Tonight
Mainly cloudy, mild, muggy, more showers likely and possible thunderstorms, any shower or storm can produce heavy rainfall as they will be slow movers, lows in the upper 60’s
Thursday
Mainly cloudy, warm, humid, chance of PM showers and thunderstorms, some of the late day storms can be severe, low-to-mid 80’s for afternoon highs
Thursday Night
Mainly cloudy, mild, muggy, chance of evening showers and thunderstorms and some of the storms can be severe, mid 60’s for overnight lows
Friday
Partly sunny, windy, becoming less humid, chance of lingering showers early, mid-to-upper 70’s
Saturday
Mainly sunny, comfortable, upper 70’s
Sunday
Mainly sunny, warm, near 80 degrees
Monday
Partly sunny, warm, chance of showers, low-to-mid 80’s
Discussion
A nearly stationary frontal system draped across the Mid-Atlantic region will continue to act as a focal point for showers and thunderstorms today and tonight and any shower or storm can produce heavy rainfall as they will be slow movers. Given the already well-saturated grounds, any heavy rainfall can quickly result in localized flooding conditions. Ingredients may be coming together for a severe weather outbreak in the I-95 corridor later tomorrow afternoon and early tomorrow night. An unusually strong low pressure system for mid-June will move over the western part of the Mid-Atlantic by later tomorrow and a strong surface cold front will slide towards the east coast. At the same time, a powerful wave of energy in the upper part of the atmosphere will move over the Mid-Atlantic region. As a result, there can be an outbreak of severe thunderstorms late on Thursday that could impact the DC-to-Philly-to-NYC corridor. Once the strong cold front clears the coast by early Friday, the threat for rain will end, humidity will drop, and the winds will pick up noticeably from a northwesterly direction. High pressure may stay in control for much of the weekend, but more rain is possible here by early next week.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com