It never sat right with me that Mad River Glen hadn't recorded the two-foot April storm that seem to occur so frequently in March. Climatologically speaking, it feels like something that should happen once or twice a decade and yet it hasn't in the 20 years I've been doing this, that is until the last two days. It's a challenge to overcome the power of the April sun angle, which, even with temperatures remaining below freezing on the mountain, managed to make for some wetter snow conditions below 2,500 feet. I thought we might perform better Friday with the snow shower machine, but the disorganized remnants of our recent storm's moist conveyor targeted the Adirondacks and only grazed parts of the Green Mountains. Still this is expected to continue for a time Friday night, break for a bit early Saturday and then more snow showers, some heavy, appear likely Saturday afternoon. Temperatures on Saturday will behave much as they did Friday. Sunday is expected to be a little warmer with the snow having departed and sunshine making a late day appearance. When will the corn show up ? That typically happens after the wet snow gets a chance to freeze with a chilly overnight and subsequently softens to corn with a warm day. Very good chance that happens on Monday, but parts of the mountain could see that on Sunday as well.
Solar eclipse Monday just looks outstanding and we are almost figuratively and literally in the clear. 25-30 degree temperatures in the morning will become 50-55 degree temperatures during the afternoon and almost 60 in valley locations. We should see clear blue skies in the morning and light winds. 3 computer simulations and one package of statistical guidance suggests that sunshine continues through evening. 1 computer model simulations brings a thin layer of high cloudiness to Vermont Monday afternoon. Not every run of this European model has suggested this outcome, but it was suggested Friday afternoon so I don't want to mislead the reader and guarantee good viewing. The potential clouds are the innocuous high cirrus kind, blowing off the top of a rainy weather system in Wisconsin. They would have to power jet stream ridge to our west which doesn't seem likely to me yet weather will always manage to suprise you.
Following our eclipse day we will take another big step into spring. Cool high pressure will slip in from for the north after Tuesday, putting a stop to the 50-60 degree weather. That said, we are looking at a lot of above freezing temperatures and a surge of warmth and potentially heavy rain Thursday night into Friday (April 11-12). We will have to keep an eye on this one for flooding because the mountains have some deep late season snow pack and this system late next week is capable of bringing high winds and higher dewpoints with it. Cooler weather is being advertised on the ensembles after April 13 and that should include some below freezing overnights even if our days continue to see a mix of 40's and 50's.
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