Good Wednesday all-
A WINTER STORM WATCH is up for Northern Litchfield County, and all of Hartford and Tolland Counties. Southern Litchfield has a high end WINTER WEATHER ADVISORY.
I have a real forecasting nightmare at the moment with some intense model disagreement about a major nor'easter that is going to be impacting our weather for tomorrow. I can pretty much guarantee a major impact of some kind...but exactly what kind remains to be seen. The GFS and CMC models are saying almost all rain, with only a few sloppy inches (1-3") in the northwest hills, the European model is saying 3-6" for everyone north of the immediate shoreline, and the NAM (which has been the most accurate in recent years) is showing 6-12" for parts of far northern Connecticut, with 2-5" totals commonplace south of there. That helps...how? Well it does allow me to establish this- I think a reasonable figure for interior portions of the southern counties is 2-5". The real trick here is going to be forecasting for the Litchfield Hills and parts of the northeastern hilltops as well- essentially the good old "along and north of 84" type deal...I will begin with 4-8"...which is in close agreement with the National Weather Service as well.
That said, there is no looming significant precipitation beyond this storm until Tuesday, though some mixed precip is possible right around midnight on New Year's Eve (how wonderful!)...and the Tuesday system *should* be a primarily rain event. I will keep you posted if something changes with that though!
Today in weather history- December 28, 1955- Anchorage, AK is hit with a record breaking 17.7" of snow in 24 hours, which is probably not what you thought that record would be! The reason this is relatively low is their location on the immediate shoreline tends to produce more mixed precipitation than snow...in fact, the average snowfall for the area is just 75.5", which is a touch under twice more than what our typical season is...and we have had more snow than that on a handfull of occasions (most recently for most locations in 2012-13, when we had that one 40" storm and a few others, and for those that didn't, then everyone in CT did in the historic 2010-11 winter). By comparison...an area just to the northeast of there- Valdez, AK, is the snowiest city in the United States, averaging 297.7" of snow a year, 3 times...our all-time record(!!)
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