Friday, December 19, 2008

Heavy snow

Despite a start time about 45 minutes late, heavy snow moved in quicker than anticipated. As of 300pm, 1.7" was on the ground in Keene, 1.4" of which fell in the last hour. Snowfall rates of 1" to 2" per hour will continue through the afternoon. Flake size has been marginal and may reduce ratios a little. Also, currently watching a dry slot in central NY and PA. A moist low level jet should give us several hours more of precipitation, but still something to watch. Based on radar in E PA and N NJ, some very heavy snows likely particularly between 5pm and 7pm for portions of Massachusetts. This is the timeframe that a few reports of thundersnow will be possible. For Keene, currently thinking 4.5" by 5pm, 7" by 7pm, before the heaviest snow moves out.

1 comment:

Anonymous said...

Sam,
Waiting for your post regarding timing and intensity of Sunday event. Don't fall asleep on us now!

Dr Wilson