Flash Floods and Tornado Warnings Strike Central New York
• Central New York experienced a dangerous combination of flash flooding and tornado warnings on September 2,
• By mid-morning, 1-2 inches of rain had fallen in Onondaga County, flooding roads and overwhelming creeks in areas like Camillus and Baldwinsville. Later in the evening, a second storm system brought severe thunderstorms and tornado warnings, with Doppler radar detecting rotation near Auburn. The National Weather Service (NWS) issued overlapping warnings for flash floods and tornadoes across more than 20 counties in New York and Pennsylvania. This event was driven by a meteorological phenomenon called 'training thunderstorms,' where repeated storm cells saturated the already-soaked ground, leading to immediate surface runoff. The broader weather pattern was influenced by a heat dome over the Central Mississippi Valley, which funneled disturbances into the Northeast.
Impact & Risks
The overlapping flash flood and tornado warnings created compounding hazards, making safety guidance challenging. Flooded roads in areas like Auburn and Skaneateles remained impassable as tornado warnings were issued, increasing risks for residents. Tornado warnings after dark are particularly dangerous, as people may be asleep and miss alerts. Additionally, saturated soil amplified flash flooding risks, with rain rates reaching up to 2 inches per hour. Power outages affected over 65,000 customers across Pennsylvania, Delaware, and New Jersey, with further outages expected. The NWS characterized some storms as 'extremely dangerous,' citing wind gusts up to 70 mph (113 km/h) and quarter-size hail.
Related News