Mostly sunny skies around noon have given way to cumulus clouds with about 50% coverage. Temperatures have reached 84 here in Keene at 1:35pm with a dew point at 61. A pocket of 85+ temperatures has developed in central MA, south-central NH, and northern CT. This area will expand through the afternoon to include all of southern and central NH, central and eastern MA, and CT and RI. Everything is going on track so far. High of 86 expected in Keene around 1500 to 1530.
Across NH, VT, and northern NY lifted indices have dropped to -2 to -4 with 500 to 1000 j/kg of CAPE. A short wave has now dropped south of Quebec and is about to enter northern New York. Scattered showers have begun to enter the northern Adirondacks. As these showers enter more unstable air along with strong 500mb winds, they will intensify. Expect isolated thunderstorms north of the Mass Pike to develop around 1700. The largest threat with the storms will be gusty winds, although small hail is not out of the question.
(1230) The SPC continues a 5% chance of severe winds and/or hail this afternoon.
Otherwise, most cumulus clouds will continue to grow this afternoon with daytime heating. Expect partly cloudy skies through this evening.
|posted by Sam Lillo @ 6/25/2007 01:57:00 PM