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Monday Forecast Update

Update Sun 05/28 @ 6:19 PM— Some cloudiness moved in today as expected and Monday will be similar with high clouds from the city northward and some thicker mid-level cloudiness in areas south of the city.

The Jersey shore will be chilly with an easterly wind flow and significant cloudiness from Atlantic City southward. Some sprinkles possible around Cape May and Delaware.

High Temperatures Monday—

Looking ahead, another Omega block takes hold over the coming weekend. No rain expected until June 7th!

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Update Sun 05/28 @ 7:18 AM — We may see some periods of clouds from the city and southward today along with periods of sun. Northward of the city, things look good. The Jersey Shore will see cooler temps from an easterly wind and some light showers can’t be ruled out in far southern areas (Cape May) and Delaware later in the day. I’ll update later today.

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Previously Posted Fri 3:11 PM —

There haven’t been any postings this past week because I’ve been away, but I’ve been keeping an eye on the models and the local weather remotely.

We remain in a very dry pattern with a stalled upper low in the southeastern US and a persistent upper ridge and surface high pressure system blocking any rain from moving into the Philadelphia area from the south. This will continue over the weekend.

The latest NAEFS model forecast for Sunday shows this setup—

This very dry pattern is a bit of a concern, with our still being in May. Our springtime weather is often much wetter. Hopefully things change; if not, I see the likelihood of parched lawns and stressed trees this summer, as we had last summer. Possibly worse.

Anyhow, it may be premature to worry about a “pattern” with just three weeks of minimal rainfall. I guess we’ll see.

The forecast for this weekend is straightforward, provided the system to our south remains to our south. More uncertainty for Monday.

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Update Fri 5/19 4:05 PM — This afternoon’s models suggest a heavier band of rain may develop directly over Philadelphia. That would be a significant change in the forecast of the past several days.

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Previously Posted Fri 9:45 AM —

A coastal system will brush the Philadelphia area with light showers as it moves northeastward early Saturday morning.

A cold front approaches from the west during the day Saturday and moves through early Saturday evening with showers and possibly a few thundershowers. Most of the energy and rain will move up to our west missing us.

The models are in general agreement that the immediate PHL area and some areas to our immediate west likely will miss out in some much-needed rain—

Following the cold front, we’ll re-emerge into the same general pattern of a cooler and dry weather pattern—

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