Category Archives: Brief Forecast Update


Tonight’s models show sky conditions on Sunday to be similar to Saturday —  considerable clouds much of the time, but breaks of sunshine and bright spots also possible.  One version of the HIRESW   has a lot more sunshine especially in the afternoon.

The NAM NEST has some fog early morning as well.  Brief light sprinkles very widely scattered still a possibility.

High temperatures 66-68°.

Light showers Sunday night.

Last night’s HIRESW-NMMB2 model nailed the early sunshine and the showers moving through now (10AM).

“High Resolution Window Non -Hydrostatic Mesoscale Model  Grid B2 “—>  HIRESW-NMMB2

It has a break in the action by 11 AM and showers move back in about 3-6PM. It has some sunshine breaking out mid-day.

(With Daylight Saving Time, the new High Resolution models become about 10:30 AM and 10:30 PM for just their first 24 hour forecasts.)

Sunday Brief Update: Last night’s models continue with cool, cloudy conditions today.  The warm front stays to our south and high temps may only be in the mid to upper 50s!

Light, scattered drizzle in the morning, a bit of brightening skies 12-4 PM,  then some light, organized showers about 6-8 PM.

Best time for some exercise outdoors is from 12-4 PM.

Another Update 11:42 pm:  Some models don’t have us getting out of the 50s on Sunday.

Tonight’s models have trended towards last night’s NAM, which had the warm front not making it into Philadelphia.

Weak low pressure developing near the Delmarva coast will maintain a cooler east to northeasterly flow for Sunday. Low clouds, scattered sprinkles are possible in the morning. Some brightening skies possible, but not a certainty in the late afternoon.

While cloudy, it should be possible to get exercise outdoors.

At one point, thunderstorms seemed possible about 4-6 pm, but that looks unlikely now.  Highs near 60 (instead of the mid 60s-70 that was previously forecast)..