Hot & Humid, with Severe T-Storms for Parts of the Northeast Today

Good morning! Happy Tuesday! Today will be hot and humid for much of the Northeast, as a Bermuda-type high pressure sets up off over the Atlantic. Some areas of patchy fog will burn off early this morning. Then partly to mostly sunny skies with southwest winds are expected for the rest of the day. Temperatures will rise in the upper 80s to middle 90s this afternoon. Temperatures will be little cooler with sea-breezes closer to the shores. High humidity with some dewpoints low to mid 70s, will support heat index values in the upper 90s to lower 100s. Particularly over I-95 corridor between New York City and Philadelphia, where heat advisories are in affect for today.

But this oppressive heat and humidity will be short-lived as a strong cold front and upper-level trough will be approaching from the Great Lakes today. Moderate to strong instability will be building with more daytime heating and more tropical moisture streaming northward. This could support some isolated showers and thunderstorm to develop anywhere and anytime during the today. However, more widespread showers and strong-severe thunderstorms are likely over Interior parts of New York and Pennsylvania this afternoon, as more dynamics with the cold front moves into those parts of the Northeast initially.


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