The National Weather Service issued a Severe Thunderstorm Warning for Cayuga County, New York, until 4:30 PM EDT on June 10, 2026, and later extended warnings to Chautauqua County until 11:45 PM EDT the same day. The later alert was issued at 10:45 PM EDT as a severe storm moved east at 45 mph over Northwest Harborcreek toward western New York. The updated advisories covered additional communities and emphasized risks from damaging wind, hail, torrential rain, and continuous lightning. This is a developing weather situationinformation reflects the latest changes available. Last update: June 11, 2026.
Cayuga County alert and expected hazards
The initial warning for Cayuga County named Weedsport, Cato, Conquest, Port Byron, and Meridian among the communities at risk. Forecasters highlighted 60 mph wind gusts and quarter-size hailconditions capable of damaging roofs, siding, vehicles, and trees. Torrential rainfall was ongoing with the storm, increasing the threat of flash flooding on low-lying roads and poor-drainage areas. Residents were urged to move to an interior room on the lowest floor and to avoid driving through flooded roadways. Vehicles can be swept away in shallow moving waterand localized power disruptions were possible where limbs and lines were downed by strong gusts.
Late-night warning for Chautauqua County
The subsequent warning for Chautauqua County included Jamestown, Dunkirk, Fredonia, Westfield, Lakewood, Falconer, Mayville, Clymer, Long Point State Park, and Jamestown West as the storm advanced east at 45 mph. Hazard statements cited wind gusts up to 60 mph and penny-size hailwith reports of frequent cloud-to-ground lightning accompanying the leading edge. The National Weather Service advised immediate shelter indoors, noting that if thunder is audible, lightning can strike nearby. People were told to stay away from windows, secure outdoor objects where possible, and be prepared for rapid reductions in visibility in heavy rain. Emergency services remained available via 911 for storm-related incidents, while residents were asked to follow directions from local authorities and monitor official alerts for any additional extensions or new warnings along the storm’s path.
