Rain and Wind
Low pressure is riding along a frontal boundary that resides to our south.
This low was centered near St. Louis, Missouri this morning and will track northeastward into lower Michigan by tonight.
As it moves towards the northeast, the frontal boundary will also lift northward. Already there are a few showers in the area early this morning, and the rain will only increase as the front pushes north.
Scattered showers will gradually transition to widespread, steady rain this morning. The rain will then continue for most of, if not all, the afternoon.
The rain will become more on and off this evening and overnight, but there may also be some heavy downpours and a few rumbles of thunder during this time.
Scattered showers and downpours will continue early Wednesday but will transition back to a widespread, steady rainfall during the morning hours. Embedded downpours will continue to be a possibility.
This batch of steady rain will also continue for most of the afternoon hours, but should become more scattered late in the afternoon and during the evening. By this time, snow and some sleet may start to mix in.
Temperatures today will only rise a few degrees to a high in the mid 40s. Nighttime temperatures will drop back to around 40 degrees, rising again on Wednesday to the mid 40s.
Southeast winds will build to around 10 mph this afternoon but will increase further tonight. After midnight, many areas will have wind speeds near or above 15 mph, increasing to near 20 mph Wednesday morning and early afternoon.
Top gusts during this time may approach 45 mph, especially over the higher elevations east of Cayuga Lake.
The wind will lessen Wednesday afternoon and become light Wednesday evening.
Cool and Unsettled
By Wednesday evening, the low pressure will remain stalled out over lower Michigan, but will be weakening as it transfers its energy to a new low off the coast of New Jersey.
This low will strengthen as it crawls northeast, making it to about Cape Cod by late Thursday afternoon. From there, the low will meander along the New England coast, gradually weakening, until it is finally kicked out to sea by incoming high pressure late Saturday.
As the coastal low takes over, cooler air will move into the Finger Lakes. I have already mentioned rain mixing with snow and sleet by late Wednesday afternoon and evening.
Mixed precipitation will continue through Wednesday night, though it looks as though the heaviest and steadiest of the precipitation may stay to our north. Some areas may also stay rain throughout the night.
This has reduced the chances for accumulating snowfall significantly across our region. A few higher elevations may still manage an inch or two, but most lower elevations should see little to no snow accumulation.
Rain and snow showers will persist through Thursday with afternoon highs mainly in the mid and upper 30s. Temperatures may fall during the afternoon, making snow more common later in the day.
Light snow will fall throughout Thursday night, again resulting in minor accumulations of a coating to an inch or so.
Light precipitation will continue on Friday, starting as snow but gradually transitioning to rain showers. High temperatures on Friday will be around 40 degrees.
Even Saturday will have lingering rain showers, possibly with a few wet snowflakes mixing in early on. Highs will be in the low 40s.
High pressure moves in overhead on Sunday with sunny skies and highs rising to near 50 degrees.
Monday, of course, is the eclipse. Mixed skies are expected, especially during the afternoon, when passing clouds may interfere with viewing the eclipse. However, it is too early to be confident on cloud cover on an hour-by-hour basis, so continue to check back in this space daily for updates.
More Information:
» Finger Lakes Weather Radar
» Zip Code Forecasts
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This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected. Stay Updated With Email Alerts