Updated at 10:55EDT 4/15


Fri-Sun 4/16-18
40% chance of a winter event
10% chance of a
severe winter event


None
0% chance of a winter event
0% chance of a
severe winter event


Friday 4/16
20% chance of a delay
0% chance of an early dismissal

0% chance of a cancellation


None
0% chance of a delay
0% chance of an early dismissal

0% chance of a cancellation
Snowday probabilities are made by Sam Lillo, for SAU29 in Keene. These percentages should not be relied on outside of Cheshire County, NH. In addition, in Cheshire County, please do all school work on time depsite the issued forecast.
Posted: 2/20/2009 02:20:00 PM

I havent discussed this much yet except to describe the potential. I dont have too much time right now, so this post is just to re-establish the fact that there is a lot of potential with this storm.

A shortwave currently diving south from Saskatchewan will dig into Iowa tomorrow morning, with associated surface low pressure over northern Illinois. A 500mb low will begin to close off over southeast Ontario on Sunday morning with the system becoming vertically stacked and a secondary low developing over the Delmarva peninsula.

The faster this secondary low develops and takes control, the larger the snowstorm that SNE and CNE will receive. The latest (12z) GFS has the strongest solution of the last few days, with the secondary low taking over tracking across NYC. The GFS projects QPF around .7" across SNH. This would be a moderate snowstorm for much of CNE. However, the exact evolution of the storm is still uncertain, so this is something to watch over the next few days. I will post more later tonight.

Regardless of how big a hit we get here, northern New England, specifically Maine, is going to get walloped with widespread heavy snowfall.





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