Posts

John Homenuk

Not just scud: It was a wall cloud over Nassau county Tuesday

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Tuesday evening, strong to severe thunderstorms moved through Eastern New Jersey and towards New York City. In fairly typical fashion, they also proceeded eastward toward Western Long Island before emerging into the Atlantic waters and weakening. The storms were particularly intense in terms of lightning, and even produced some strong wind gusts throughout the New York City Area. Unfortunately, three people were struck by lightning in the 5-Boros. We are awaiting further information on their status, but all three have been hospitalized.

Also notable was a brief area of rotation in one of the stronger storms over Queens and Nassau counties. If you weren’t paying close attention, you may have missed it. In fact, even using Doppler radar out of Upton, NY (KOKX) or Mount Holly, NJ  (KDIX) wouldn’t necessarily have keyed you in to the rotation. But a zoom into Terminal Doppler Radar Data (TDWR) out of JFK Airport revealed something more interesting.

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John Homenuk

NYC Area Forecast: Additional strong storms possible later today

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Strong and severe thunderstorms moved through parts of the Northeast states on Tuesday evening, producing frequent and dangerous lightning as well as strong, gusty winds and torrential rain. There was even a wall cloud spotted in Queens and Nassau counties, as an area of distinct rotation appeared on terminal doppler radar out of Kennedy Airport. This was the third instance of rotating thunderstorms in the NYC area in just over a week.

The threat for strong thunderstorms will continue today as a frontal boundary slowly sinks towards the region. Instability is expected to build once again by this afternoon across the Northern Mid-Atlantic States with ample heating and a continued source of moisture (you may have noticed that it is very humid outside). As better forcing for storm development approaches later today, thunderstorms are expected to increase in coverage once again.

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Miguel Pierre

Thursday Overview: Cooler and drier air arrives

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After a cold front passed through with some showers and thunderstorms on Wednesday evening, another cooler and drier airmass has settled into the area. Temperatures are in the 50s and lower  60s over the region early this morning. High pressure will provide beautiful weather, with mostly sunny skies today. Temperatures will only reach the lower or middle 70s this afternoon over the region. Which is big refreshing, difference from yesterday 90 degree heat. These temperatures are also slightly below normal for mid-September.

Mostly clear skies and calm winds, will lead to more radiational cooling tonight. Temperatures may get down to 50s and some 40s over much of the region. Closer to New York City, low temperatures may be closer to 60. You may want to wear a light jacket or sweater headed to work or school tomorrow morning. Friday and Friday night will be similar to today and tonight, with high pressure remaining in control. Some other highlights over next several days.

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