Tag Archives: Hurricane Debby 2024

WEEKEND WEATHER FORECAST

#Philadelphia #weather #PAwx

Sun 9:35 AM —Forecast ReviewMRMS rainfall 24 hours through 9 AM Sunday—

MRMS rain-gauge measured rainfall combined with rain-gauge calibrated and interpolated radar-based summary of ACTUAL RAINFALL RECEIVED. Color shading is in inches. Line contour numbers are in mm. (25.4 mm= 1 inch)      (Click on image for a larger view.)

Sunday Forecast Update

Posted Sunday 08/04/24 @ 9:01 AM — The upper level trough axis will move across our area today. An area to our southwest is expected to generate disturbances that will lift towards us causing showers and thunderstorms in our area. Most of the heaviest rainfall will be from the city and eastward in NJ.

This morning’s water vapor image with superimposed RAP model 700 mb data. Area designated X at the base of the upper trough will generate showers and thunderstorms that will lift northeastward towards us. (Click on image for a larger view.)

Showers and thundershowers are expected later this morning and again by 1-3 PM. Some may be heavy.

I’m watching the development of likely Hurricane Debby. There’s much uncertainty with the track of this storm, but after hitting Florida, it may redevelop around the Georgia/South Caroline coastline and even move westward due to blocking by the large Bermuda High Pressure system. Remnants of this storm have a good chance of affecting our area later in the week, but the timing is quite uncertain at this time.


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Originally Posted Fri @ 8:15 PM —

Sunday

Mostly cloudy, some bright spots at times. Scattered showers and thunderstorms for much of the day, ending late afternoon.

NBM high temperatures: Blue Bell, PA 86º Philadelphia, PA 88º
uncertainty (based on standard deviation): Average to low.