Updated at 10:55EDT 4/15

Short term Winter threat


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

Long term Winter threat


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

Snowday probabilities1


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

Snowday probabilities2


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.

  00z NAM

Posted: 12/17/2008 10:12:00 PM

As expected, dramatically higher QPF over SNE versus the 18z run. I think the 18z run can safely be tossed. 00z NAM gives Keene about .5" of water equivalent. With excellent omega, even on the edge of the storm, and a cold thermal profile, we'll be seeing high ratios, around 16:1. Down to the Mass Pike, ratios as high as 20:1 will be possible which will allow a few areas to reach 18 or more inches.

Sunday into Monday holds a lot of potential. Low pressure will track closer to the region, so ptype issues are likely in the I95 corridor. A very good set up at this point for a foot of snow here and maybe some winds as well as the low rapidly deepens to our east. Snow should wrap up before dawn Monday. I still haven't had time to write up a discussion, but maybe tomorrow...

|posted by Sam Lillo @ 12/17/2008 10:12:00 PM
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