Thursday, March 7, 2013

Inverted Trough Event 3/7/13 Morning Update

Well, yesterday was a prime example of what can happen when you are off on a couple variables needed for snow. The upper atmosphere was very conducive to snow, but an east wind kept surface temperatures above freezing, and kept the precipitation mainly rain with embedded snow/ice. A day of temperatures around 40 degrees kept the ground warm where even when it switched to snow last night, it was too warm to stick. Can this winter be over already?

There is a disturbance moving through the Great Lakes now that will act to cause an inverted trough from last nights storm. The disturbance will cause the trough from yesterday's storm to become inverted and act to pull back moisture from yesterday's storm. Precip is breaking out already in New England and coastal sections of NJ. This will continue to build through the day. I will monitor the situation and keep you posted. There can be some accumulations throughout the area, especially in New England and Eastern NY.

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