Showers Friday night dissipate by Saturday morning. Skies become partly sunny on Saturday but a southeasterly flow keeps temperatures on the cool side. High temperatures around 62. Becoming cloudy towards evening.
A warm front approaches from the southwest Saturday night with showers early, then rain developing late. Sunday morning, rain continues, but skies brighten early afternoon as the warm front passes. High 64. Rain redevelops later Sunday afternoon into the evening, as a low pressure system moves towards us.
Saturday evening update: Tonight’s models depict a solid area of light to moderate rain over PHL during Sunday morning . QPF values about 0.25 inches during the period 8am to 2pm. Actual rainfall amounts may be higher if convective precip develops.
That said, the models are not accurately capturing the early arrival of the rain tonight, so maybe tomorrow’s modeling won’t be accurate either.
Glenn, for those of us running the Broad Street Run tomorrow morning at 8 am, would you be able to further explain about how hard it will be raining in the 8-9:30am -ish timeframe? Any chance this is intermittent showers, or will it be a constant rain? I know it won’t be pretty, but anything to be optimistic about? 🙂
Looks closer to a constant, moderate rain at this time, but things can change.
It looks like a moderate rain in the morning Sunday. QPF values about 0.30-0.45 inches of water between 8 AM and 2 PM, depending on the model. That’s pretty wet. But these things can change and (like snowfall), you can’t hang your hat on an accurate QPF amount until this evening’s model run. I’ll update if it changes.