A soaking is on tap for Philadelphia Monday afternoon with Karen partially to blame.
An approaching cold front and some moisture from Karen, now a tropical rainstorm, will combine to spread a band of heavy rain through Philadelphia Monday afternoon.
Monday will start on a damp note with low-hanging clouds, patchy fog and a passing shower. The heavy rain will follow for the afternoon, especially during the latter half when the evening commute is under way.
The downpours threaten to slow down motorists by reducing visibility and heightening the risk of vehicles hydroplaning at highway speeds.
Umbrellas will be a necessity for those traveling by foot. Airline passengers could encounter delays, even in the morning from the clouds and fog.
The rain will amount to around an inch in less than six hours. There will be locally higher amounts, and that is where AccuWeather.com meteorologists will be most concerned for flash flooding to occur.
Low-lying and poor drainage areas will be most susceptible to flooding problems.
A couple of thunderstorms will also accompany the heavy rain; the strongest of those thunderstorms could produce winds capable of causing minor tree damage and sporadic power outages.
Following the passage of the cold front, a drier day with the return of sunshine will unfold for Tuesday. Highs in the lower 70s will compliment not only this day, but also Wednesday.
Beyond midweek, AccuWeather.com meteorologists are monitoring the possibility of a storm developing near the East Coast and ruining the sunny forecasts for later in the week.
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