Arthur Archives - New York Metro Weather

Severe thunderstorms rocked the NY/NJ area on Wednesday evening, owing to rich tropical moisture and strong atmospheric instability. Behind storms of that nature, typically, the airmass becomes less humid, cooler and drier. Thursday will be atypical in that sense, as tropical moisture will actually increase once again. Rising dew points and humidity values will continue — and temperatures in the 80’s and 90’s are expected again by early afternoon. And, again, an approaching mid level disturbance is expected to aid in the development of strong to severe thunderstorms by afternoon.

Storms will progress from southwest to northeast, initially forming in Pennsylvania and making their way through New Jersey. As was the case on Wednesday dangerous lightning, flash flooding, strong winds and small hail are all possible in strong to severe thunderstorms that do develop. The National Weather Service has issued a Flash Flood Watch for much of the region, and the Storm Prediction Center has placed the area in a Slight Risk for severe thunderstorms through this evening.

Todays Day 1 Outlook from the Storm Prediction Center showing a Slight Risk near our area.

UPDATE 2:00pm: A severe thunderstorm watch is in effect until 9:00pm this evening. The Storm Prediction Center suggests severe thunderstorms are possible, capable of producing strong winds, small hail, and dangerous lightning. Stay tuned for updates including any severe thunderstorm or flood related warnings. The latest information on the severe thunderstorm watch can be found here.

Heat Advisories were issued by the National Weather Service for much of New Jersey on Wednesday, as heat is expected to build throughout the area once again. Rising dew points are only adding to the issue — as they will create a much muggier, more oppressive airmass than the past few days this week. Heat index values are expected to rise well into the 90’s and possibly come close to 100 in some spots later this afternoon. Any time dew points rise into the mid 70’s while temperatures are in the mid 90’s — the air will be quite heavy.

In addition to the oppressive heat, strong to severe thunderstorms are possible this afternoon. The Storm Prediction Center has placed the area in a “Slight Risk” for severe thunderstorms, indicating a risk of small hail and strong winds. In addition to those threats, heavy rain and frequent lightning would be likely in any thunderstorms that develop. We encourage you to stay tuned throughout the day for updates on the developing thunderstorms and hazardous weather threat. In addition, stay hydrated and avoid prolonged outdoor exposure.

Day 1 Outlook from the SPC showing a Slight Risk throughout the area on Wednesday.

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Severe thunderstorms again today, Arthur a ‘Cane

Heat and severe storms Wednesday, Arthur late week

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