WEEKEND WEATHER FORECAST

A series of weak frontal systems will pass through our area over the weekend. The general overview is that Saturday will be the nicer of the two days this weekend.

The latest GFS model shows some cloudiness moving in from the west Saturday afternoon. (Previous model runs had kept us sunny.) There’s uncertainty about light drizzle Sunday afternoon but the trend is towards some light scattered drizzle mid to late afternoon.

Saturday—

A weak cold front moves through before daybreak Saturday. A northwesterly flow of air moves in, but temperatures will be above seasonal averages. (average high 51º-52º)

Sunday—

As the high pressure system moves to our north, an easterly to northeasterly flow will develop for Sunday and significant cloudiness will develop.

Low pressure to our west will slide off to our northwest and a warm front will move through late Sunday and then a cold front Sunday night. Some, but not all models, are showing light showers and drizzle mid to late Sunday afternoon. It will be a stereotypical dark, cloudy November day although still mild.

Short Range Ensemble Forecast 3:00 PM Sunday. This SREF model does NOT show any drizzle, nor does the current NBM model. The higher resolution models do show drizzle.
High Resolution HIRESW-FV3 Model (Pre-release version) Simulated Radar 3 PM Sunday

I expect some clarification about the drizzle for Sunday. Stay tuned.

CHANGE IN SUNDAY’S FORECAST

There’s a change in the forecast for Sunday, specifically with the timing of the rain and with frontal passage.

The latest models have delayed the cold front passage until 7-9 PM Sunday evening. The clouds and rain will similarly much occur later in the day. More sun will translate into milder temperatures.

The latest NAM-NEST delays the rain until late afternoon or evening— 6 PM or so.) The Canadian models even later.

Here’s the latest High Resolution Window (HIRESW) Model (pre-release version) simulated radar at 6 PM EST Sunday.—

HIRESW-FV3 (pre-release version) Forecast 6 PM (simulated Radar)

Weather… and Other Things 'Up in the Air'