Severe thunderstorms are developing across SW New Hampshire this afternoon. So far, they aren't prolific lightning producers, but they are producing isolated damaging wind, and more importantly, incredible rainfall rates of 1-2 inches per hour.
The temp at which convection can begin is about 80 degrees today, and we have just reached that in Lebanon an hour ago, so I expect storms to develop nearby or overhead within an hour or two. It appears that a line is beginning just to our south, but that doesn't mean things wont develop locally. There is also a strong line of thunderstorms way out in western NYS, but those are moving north before east, so it will be some time before that line makes it here. In the meantime, prepare for isolated slow moving thunderstorms that drop a couple inches of rain in one hour.
The sun is out as much as it has been all day, so I really expect storms to develop...very soon.
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