Unsettled weather pattern persists for the Finger Lakes

finger lakes weather forecast monday november 23 2020 cool cold front windy lake effect snow
Breezy, cool conditions will persist today behind a predawn cold front, but warmer weather will move for the latter half of the week. [Photo by Gwen Moshier]

Week Starts Cool

The final week of November will continue the weather pattern that has been present for the last few weeks with unsettled weather and varying temperatures.

A cold front moved through the Finger Lakes during the predawn hours this morning. The precipitation with the front, and the warm air ahead of the front, are well to the east already.

In the wake of the front, skies are cloudy this morning and will remain so through the day. Precipitation will be limited to a stray bit of rain here or there during the daytime hours and some limited lake effect snow overnight tonight.

Blustery northwest winds will blow today behind the front, peaking in the late morning and early afternoon hours. Wind speeds at this time will be around 15 mph with gusts of 30-40 mph.

Technically , daytime highs have already occurred with temperatures around 50 degrees before the front moved through. Temperatures are in the low and mid 30s at 7 AM, but will rise back to the upper 30s and low 40s this afternoon.

An evening drop into the low and mid 30s will allow some lake snows to develop east of Lake Ontario. This will drop south around midnight into Wayne, northern Cayuga and Onondaga counties. Some of the snow may mix with rain, especially close to Lake Ontario.

The disorganized band will continue south as scattered snow showers. By dawn Tuesday, it may be aligned with Cayuga Lake, allowing for some extra snow south-southeast of that lake. The snow should dissipate fairly quickly Tuesday morning.

The northeastern half of the region, where this lake effect will occur, could see a coating to locally an inch of snow overnight. Even in that area, though, many areas will see little to no accumulation. To the southwest, the nighttime will be quiet with only a stray flurry here or there.

Tuesday itself will be cool with highs in the mid 30s. There is a small window for some sunshine in the early afternoon as the lake effect clouds dissipate, but new clouds will quickly be moving in from the southwest.

finger lakes weather 7-day forecast monday november 23 2020
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected. Click to enlarge.
finger lakes weather 7-day forecast monday november 23 2020

Warmer Second Half

The clouds that arrive late Tuesday will be ahead of a warm front that will push into the area Tuesday night. A quick shot of snow may accompany the front overnight, similar to what fell yesterday.

This precipitation should be out of the region by sunrise Wednesday morning. South winds will blow at 10-15 mph behind the warm front with gusts of 25-30 mph.

Temperatures will warm into the mid 40s during the daytime hours Wednesday. Rain will move in from the west late in the day and continue into the evening and overnight. Some areas could approach a half-inch of rain with overnight temperatures in the low and mid 40s.

Lighter south winds will blow on Thanksgiving, though rain showers will be plentiful. Thursday should be the warmest day of the week with highs in the mid 50s.

Mild air will remain for Friday with morning temperatures starting in the mid 40s and highs topping out around 50. Our best chance at seeing some sun will come Friday, though a few showers will also dot the region.

Slightly cooler air will move in for the weekend, but highs should stick to the 40s. A few rain showers will be possible on Saturday before dry weather settles in for Sunday.

A stronger storm system is slated to move in early next week. It is too far out to know the details, but at this time of year, we can probably expect strong winds, rain, and possibly some snow on the backside of the system.

More Information:

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Follow Meteorologist Drew Montreuil:
Meteorologist Drew Montreuil has been forecasting the weather in the Finger Lakes region since 2006 and has degrees in meteorology from SUNY Oswego (B.S. with Honors) and Cornell (M.S.). Drew and his wife have four young boys. When not working or playing with the boys, he is probably out for a run through the countryside.