Mesoscale Update: Severe storms, heavy rain likely today
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A warm and humid airmass has settled into the region this morning, ahead of a large mid level atmospheric trough digging through Southeast Canada and into parts of the Northeast States. With a surface low well to the northwest of the area, a cold frontal boundary will shift eastwards through Pennsylvania and New York later today, providing lift and forcing for widespread thunderstorms to develop.
These thunderstorms are likely to be fueled by a very warm and humid airmass which is already in place this morning. A deep southwesterly flow has become established throughout the region, leading to dew points in the upper 60’s and lower 70’s throughout the Northeast states. Temperatures this afternoon will rise into the 80’s, further enhancing the instability in the atmosphere.