Light Precipitation Monday
An area of light precipitation will move into the Finger Lakes for the late morning and early afternoon hours on Monday.
This precipitation is associated with a disorganized storm system over southern Canada and a push of warmer air resulting from high pressure over the Carolinas.
Temperatures across the Finger Lakes continued to rise overnight and will push upward through the day today.
As the warmer air comes in both at the surface and aloft, areas of mixed precipitation will be possible.
Much of what falls today may end up being snow, but the snow may turn to mostly rain near the shore of Lake Ontario while mixing with sleet or freezing drizzle at times elsewhere in the region.
Precipitation amounts should be light, with just a coating of snow and just a trace of ice.
The best chance for precipitation will be after 10 am and before 2 pm.
Temperatures will briefly warm into the mid 30s this afternoon behind the precipitation before falling back into the 20s overnight.
Brief Lake Effect
A brief period of lake effect snow is expected to develop as cooler air starts to work in tonight.
A spray of snow showers is likely across the Finger Lakes on northwest winds.
Snow should develop around or after midnight tonight and will mostly taper off by the mid and late morning hours on Tuesday.
Most areas will just see a coating to perhaps an inch of snow.
Skies should turn sunny Tuesday afternoon as high pressure builds in with afternoon highs just above 30 degrees.
Clear skies Tuesday night will allow temperatures to fall back into the teens and single digits early Wednesday, but afternoon highs should bounce back to the upper 30s and low 40s.
Warm, Active End of the Week
The end of the week holds a better chance for active weather as a couple of storm systems target the area.
Of course, some of the details of these systems still need to be worked out, but there seems to be a decent feel for how they will play out already.
On Thursday, a small system will cut from the Midwest, across the Upper Great Lakes, and into Canada. The Finger Lakes will probably not see any precipitation from this system, but it will help push temperatures Thursday into the mid and upper 40s.
Combined with high pressure over the Atlantic, this system will also pull moisture northwestward from the Atlantic.
This should result in some rain showers on Friday, but the heaviest rain will likely stay well east of our area.
Lastly, a new low pressure will develop over the Deep South and push north into the Great Lakes. This should bring a surge of warmth with it and temperatures Saturday should be at least in the 50s.
Periods of rain and even a rumble of thunder could be possible before winds increase and turn towards the northwest later Saturday, bringing in colder air and lake effect for Sunday.
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