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NWS Buffalo NYSV.W 0053June 30, 2026

Severe Thunderstorm Warning: Jefferson, Lewis and Oswego, NY

The National Weather Service office in Buffalo issued a severe thunderstorm warning for Jefferson, Lewis and Oswego in New York, which was in force until 3:00 p.m. local time on June 30. It was the 53rd severe thunderstorm warning the NWS office in Buffalo issued in 2026. New York had 95 severe thunderstorm warnings in June 2026, against 97 in an average June of 2008-2025 (New York's severe thunderstorm warnings by year).

ExpiredWarning

Issued1:56 p.m. EDT, June 30, 2026
In force1:56 p.m. EDT, June 30, 2026
Expired3:00 p.m. EDT, June 30, 2026

In force for 1.1 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Buffalo NY
Area
Jefferson, Lewis and Oswego
State
New York
Level
Warning
Issued
1:56 p.m. EDT, June 30, 2026
Expires
3:00 p.m. EDT, June 30, 2026
CAP severity, certainty, urgency
Severe, Observed, Immediate
VTEC event
KBUF SV.W 0053
Official source
National Weather Service: the notice at its source

Severe Thunderstorm Warnings in New York since 2008Every warning type in New York

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

SVRBUF The National Weather Service in Buffalo has issued a * Severe Thunderstorm Warning for... Southern Jefferson County in central New York... Lewis County in central New York... Eastern Oswego County in central New York... * Until 300 PM EDT. * At 156 PM EDT, a severe thunderstorm was located near Lowville, or 21 miles southeast of Watertown, moving southeast at 55 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Sandy Island Beach State Park, Stony Point, Carthage, Lowville, Pulaski, West Carthage, Adams, Redfield, Herrings, and Selkirk Shores State Park. This includes Interstate 81 between exits 33 and 44.

What the agency told people to do

Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice