Some interesting observations about upcoming weather for the Philadelphia area—
The rain now expected Thursday into Friday morning was not really picked up by the models until two days ago. The exception was the new FV3-GFS, which predicted the coastal storm almost two days before the other models jumped on board. (The ‘exclusive forecast’ from one of the TV stations was predicting a full week of dry weather just last weekend.)
This upcoming weekend, especially Friday through Saturday, will be anything but Spring-like. Windy conditions and unseasonably cold temperatures are expected, especially on Saturday.
The FV3-GFS is predicting a very cold outbreak Monday night into Wednesday next week. Included is a possible changeover from rain to snow late Monday into Monday evening. Maybe an outlier of a forecast, but something to watch, considering the model’s success this week.
[su_note note_color=”#d9f2da”]Update Saturday morning. The short range models show signficantly less stratocumulus cloudiness than the NAM. I guess we’ll see.[/su_note]
Following a cold front Friday evening, high pressure will build in for Saturday and Sunday.
After today’s very warm temperatures, Saturday and Sunday will be much chillier. Winds and some clouds on Saturday will make the day feel even colder.
Saturday will start sunny, but cold air aloft will result in a considerable amount of instability stratocumulus cloudiness at times, especially late morning and early afternoon. It will be windy and gusty. High 46-48.
Stratocumulus cloud overage expected for Saturday (NAM NEST) (darker shades–> more clouds)
Sunday will be sunny with light winds. Temperatures will still be below average, with a high of 45.
Average high temps are about 54ºF for Philadelphia.
