Evening update on long-duration nor’easter

Hello everyone!

The forecast is mostly on track this afternoon as warm air continues to pour in both at the surface and aloft. We saw once again today the power of cold air and cold air damming as it took us here in Yarmouth until about 2 PM to switch from freezing rain to rain. Warm air will continue to push inland this afternoon and evening eventually making it all the way to the mountains by late tonight.

Rain snow line

Here is a snapshot of current observations across the area showing our cold wedge slowly eroding. Expect continued slippery conditions inland and in the mountains tonight.

Winds are kicking up offshore as are seas (notice the buoys on the map showing wind gusts in the 40mph range with 12-17 foot seas. Expect both of those numbers to rise as the storm strengthens near Long Island. My thoughts from this morning regarding winds remain unchanged and 50-60mph gusts are still expected at the coast with 30-40mph gusts inland.

With wind and soggy ground come power outages and the numbers are already racking up with Knox county currently holding the lead power outages

Here are the latest numbers from CMP. As expected, most outages are at the coast. As snow piles up in the mountains, expect a few from that area as well.

power outage threat

Here is the map I posted earlier today and I see no reason to change it now. The greatest risk for outages is in the mountains and at the coast.

The heaviest precip should wind down tomorrow morning from SW to NE between 1AM and 7AM. Another slug of moderate-heavy precip will arrive tomorrow afternoon but it will not be as bad as what is happening now. Northeast areas will see the best chance for heavy precip with the next round.

After tomorrow afternoon the steady, heavy stuff moves out and is replaced by precip more showery in nature while the upper low meanders overhead. Impacts from this precip should be minimal though the mountains could pick up another few inches of snow. All precip will come to a close by Saturday with sunny skies finally returning.

I’ll be back tomorrow morning with another update on when this mess finally ends!

-Jack

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