Update Fri 01/27 @ 11:22 AM — This morning’s NAM and GFS have joined the ECMWF with some very light showers moving into Philadelphia and then dissipating on Sunday afternoon, about 3-5 PM. I’ll update with my usual “Weekend Weather Forecast” this evening.
Update Fri 01/27 @ 10:23 AM — Considerable cloudiness again expected today, especially after 1 PM.
Looking ahead…
I’m keeping my eye on Sunday afternoon’s weather for the Eagles game. There is a strong high pressure system in the Atlantic that is blocking the movement of a storm in the Ohio Valley. Moisture from this storm will attempt to move eastward with clouds moving in.
Sunday will be cloudy. Most models keep any rain to our west, however, the ECMWF has consistently brought in some rain into the city about 3 PM on Sunday. The ECMWF is an outlier at this time, but it’s a model that brings the rain the furthest eastward into our area. Most models keep us cloudy and dry for the Eagles game.
ECMWF forecast for 4 PM Sunday. Light rain moves just up into Philadelphia before weakening and dissipating. (Click on image for a larger view.)
Update Thu 01/26 @ 11:18 AM — The cyclonic flow from yesterday’s storm, now in eastern Canada, will bring considerable cloudiness today with some breaks, as areas of vorticity and moisture rotate around the low. A large pressure gradient will result in very windy conditions.
Today’s 13z NBM model forecast – Cloud cover plus red/pink contours- standard deviation (Click on image for a larger view.)
Winds reduce on Friday, but a lingering upper cyclonic flow will produce considerable cloudiness again. The NBM cloud forecast for Friday looks similar to today, maybe a bit more sunshine.
Saturday looks sunnier and milder.
Sunday is expected to be fairly cloudy as a weak system moves off to our north. No showers expected at this time here.
Still watching the period February 2nd through February 6th for potential snowfall.
NAEFS forecast for Thursday, Feb 2nd. (Click on image for a larger view.)
