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STORM WATCH: Tornado watch issued for parts of western Long Island until 9 p.m.

Scattered thunderstorms can be strong with damaging winds and heavy flooding rain and even a slight chance for a tornado in Nassau County.

Rich Hoffman

and

Matt Hammer

Jul 21, 2026, 2:44 PM

Updated

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TORNADO WATCH UNTIL 9 P.M. FOR NASSAU COUNTY

While tornadoes are not a definite to happen locally, conditions are favorable for any strong to severe thunderstorm to have the capability to produce a low-end tornado with winds of 65 to 85 mph or higher. If a tornado warning is issued for your area, seek shelter immediately until the warning passes. News 12 will continue to have important updates for you through this evening.

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STRONG TO SEVERE THUNDERSTORMS POSSIBLE THROUGH THIS EVENING

Scattered showers around Long Island with embedded thunderstorms the rest of this afternoon. Not everyone will see severe storms, but be alert for thunder and lightning with some heavy downpours. The afternoon temperatures climb into the upper-70s to around 80 degrees. While much of the day won't be a washout, keep the umbrella handy because showers will become more numerous later on. Be alert some thunderstorm can have damaging winds up to 60 mph and heavy flooding rains through this evening.

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The greatest concern arrives toward this evening - from around 5 to 10 pm, especially around sunset, when the atmosphere becomes more favorable for stronger thunderstorms. Some of these storms could produce brief torrential downpours, localized flooding and strong, damaging wind gusts. If you have outdoor plans this afternoon or this evening, stay weather-aware and be prepared to head indoors quickly if warnings are issued.

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Tonight remains unsettled with mostly cloudy skies, scattered showers, and a few thunderstorms continuing through the overnight hours. Temperatures will stay mild, with lows settling into the upper-60s to lower-70s. Any heavier downpours could linger for a time before conditions gradually begin to improve overnight.

Wednesday brings mostly cloudy skies with a few breaks of sunshine. There will still be the chance for a couple of spotty afternoon showers and thunderstorms, but coverage should be more limited than today. Highs will reach the upper-70s to lower-80s. Looking ahead, the weather turns much quieter as sunshine returns for Thursday, Friday, and Saturday, with comfortable summertime conditions, dry weather, and afternoon temperatures in the 80s.

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