The Mad River Valley played some very clutch defense on Thursday. No, we weren't in the bullseye, but I was getting haunted by some of that high resolution data spitting out a tenth of an inch of freezing rain. In the end, we scored a bit of snow, had a brief period of sleet and then back to a nice midday round of heavy snow and it skied beautifully. Forecast data has inched back in our direction for the Sunday, February 16th and this places us at the southern edge of what should be the best storm of the season. More on that in a bit.
Decent flow of cold air is set to deposit another 1-3 inches of snow on our mountains Thursday evening setting us up for a wintry, partially bluebird Friday. Temps are mostly in the teens, though winds are expected and could gust to 40 mph at the summits and will certainly bring wind chills well below zero. Saturday's winds will be pretty quiet (enjoy that) and this will allow morning temperatures to be a bit below zero before rising into the teens Saturday afternoon under a thickening blanket of clouds.
Here we go with our storm. Snow is expected to develop Saturday evening and intensify quickly. We won't need to worry about any complex phasing or coastal redevelopment as a already strong low pressure area is expected to advance into the Ohio Valley Saturday night and eventually evolve into a coastal bomb in the Gulf of Maine (980 mb). This trajectory is pretty solid for us, but the strong area of low pressure is predicted to be close, crossing our longitude somewhere in southern Vermont. This places us in an area where precipitation could mix with or change to sleet or a dry slot could get at us and prevent a 3 foot accumulation. Let's be honest, these are not bad problems to have. We are going to see intense snowfall regardless, especially Saturday night into early Sunday. Any sleet or storm lull would be most likely Sunday morning before more snowfall late in the day Sunday into Sunday night. Going to keep the 15-30 inch snowfall expectation the same. A northward shift could put us us under that, a southward shift places us in the 2-3 feet category. No question this is the most intense winter storm so far this season.
With any strong storm we can expect wind. This should start becoming a factor Sunday morning blowing from the east or east northeast for much of the ski day. During the evening, we should see winds shift and become westerly. Snow should continue into Sunday night and become lighter snow showers by the ski day Monday. Models are keeping the core of the coldest air to our west now as of some recent model updates and this is somewhat laughable as winds will ferocious both Monday and Tuesday and gusts up past 40 mph at the summit won't have anyone really missing the core of this cold air. Actual temps both Monday and Tuesday on the mountain will be in the single numbers. Winds will then relax a touch for Wednesday and temperatures will moderate some. This potential Miller-A type storm is still a possibility for someone and deserves watching with a possible impact on Thursday. Any storm would then clear for Friday when we can still expect some wind though temperatures will continue to slowly moderate.
Ridging in western North America continues to be indicated for the last week of February giving us the +PNA structure I mentioned the other day. Most of the simulations continue to show moderating temperatures, but this remains an encouraging sign for what has been an amazing month so far.
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