Ginx snewx

Anomalously strong low level jet crosses the region Christmas Eve night into Christmas morning. Both ensemble systems NAEFS and ECMWF have 850 mb and 1000 mb wind anomalies 5+ standard deviations along with percentiles MAXED out! In addition, deterministic guidance continues to trend upward with low level 925 mb jet up to 75-85 kt of wind streaming across CT-RI and eastern MA Thu night into Fri morning. While models do struggle with low level lapse rates on southerly wind events, model time sections indicate 50-60 kt of wind extending downward to below 1 kft! That's typically a good signal for 50+ kt reaching the surface. Another rule of thumb, taking 60- 70% of 925 mb (75-85 kt) jet, which still yields 50+ to the surface. Furthermore, model guidance advecting dew pts into the mid 50s ahead of the front. This low level moisture and warmth will ease the low level inversion and increase the wind threat. Even MOS guid for some of coastal locations indicating 40+ kt of sustained wind! So in a nutshell, ensembles, deterministic guidance and model soundings all scream the potential for a high end wind event and residents need to prepare for possible power outages Christmas Eve night into Christmas morning. This combined with holiday approaching will issue a 5th period High Wind Watch for RI and Eastern MA, this includes Boston, Providence, Cape Cod and the Islands. After collaboration with WFO ALY & OKX will hold off on interior CT given highest threat is RI and Eastern MA as low level jet continues to increase as it advects across those areas. However later shifts may have to expand high wind watch westward into CT.

Yesterday's run

Is this current obs thread or Grinch?

Outside climo I would assume is not good

He posts here. Met FXWX, great guy and excellent Met

https://xmacis.rcc-acis.org/

Not surprised I went from 55 to 62

Might be a fraud 5 but ya can't deny they are special when they come in like this

Sweet

Lol I was with ya

So this is it huh. 2 to 3 inches of rain, thunderstorms, winds mixing down to 60s inland 70s at the coast, offshore waves to 30 feet, coastal flooding, inland street and maybe river flooding. Merry Christmas

Tropical The storm originated in an upper-level low pressure system that moved southeastward from the central Great Plains into the Deep South of the United States. After reaching the southeast Gulf of Mexico, the disturbance underwent cyclogenesis, and the resultant system moved through Florida on December 22 in response to an approaching trough.[1] National Hurricane Center forecaster Jack Beven noted that "as it moved out into the Bahamas, it appeared to take on the characteristics of a tropical storm."[2] The uncertain nature of the storm prevented the NHC from issuing advisories on it, and forecasters lacked sufficient data to fully assess the cyclone for potential tropical characteristics. The same trough that pushed the storm across Florida had moved to the north, allowing for high pressure to develop in the upper levels of the atmosphere.[2] Deemed a "hybrid storm", the cyclone rapidly intensified in warm waters of up to 80 °F (27 °C) from the Gulf Stream combined with a cold air mass over the United States.[3] The system continued to rapidly intensify while moving within the Gulf Stream; it developed central convection, an unusual trait for an extratropical cyclone, and at one point exhibited an eye.[1] Despite these indications of tropical characteristics, "There was no front associated with it and it had a warm core, but the radius of maximum winds was more than 150 nautical miles (170 mi; 280 km), so under the standard NHC criteria it didn't qualify as a tropical storm."[2] On December 23 and 24, the nor'easter intensified to attain a barometric pressure of 970 mb (29 inHg).[2] An upper-level low pressure system that developed behind the storm began to intensify and grew to be larger in size than the original disturbance. In an interaction known as the Fujiwhara effect, the broad circulation of the secondary low swung the primary nor'easter northwestward towards southern New York and New England.[3] The original low passed along the south shore of Long Island, and made landfall near New York City on December 24.[4]

Still until this day will maintain it was a TS or STS

Christmas Eve 94 working at Pfizer in Groton on the Thames was an insane night. Think it was a top 5 flood. Anyways Friday morning tide is the one to be concerned with.

100 knots 850 S LI

Geezuz GFS wind reminds me of 12/24/94 60 knot sustained just offshore. Gonna be a fuking mess

Flash freeze or dried out by then?

Since 2008Ending dates of two-day Northeast U.S. storms (occurring in DJF) with the greatest areal coverage of 12" or more of snow over the previous 48 hour period. Area (in thousands of km^2) are approximate. 2016-01-24: 98k 2014-02-14: 89k 2009-12-20: 83k 2010-02-07: 73k 2020-12-18: 71k

There's my Feb crushing under development

7 days

Epic

Subsume

Nice dude. I saw Scotts pics . Damn 33 inches. Wish he would come back

Lol yesterday's snow isn't even melting yet 35/31 here.

IDK this time of year with the ocean now winter cold its inversion season.