Thunderstorm Wind, Tompkins
- When
- July 17, 3:44 PM EST
- Where
- Tompkins County, Ithaca
- Property damage
- $5,000
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 42.450, -76.500
Several clusters of thunderstorms developed over central New York on this day in response to an upper level disturbance that moved out of the Ohio Valley during the late morning and afternoon hours. m.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS BGM wrote it up.
Several clusters of thunderstorms developed over central New York on this day in response to an upper level disturbance that moved out of the Ohio Valley during the late morning and afternoon hours. Some of these storms reached severe levels with one cluster downing powerlines near Ithaca College around 4:45 p.m. EDT. A little later, another round of thunderstorms moved through the same city and downed trees and additional wires in downtown sections of Ithaca shortly after 5 :30 p.m EDT. One particularly strong thunderstorm cell downed numerous trees and wires over central parts of Onondaga county and also disrupted a Blues Festival and the Fleet Arts and Crafts festival in downtown Syracuse. Strong winds destroyed tents and booths and sent fairgoers scattering about seeking shelter. Miraculously, no one was injured. Powerlines were also downed throughout the area as 13,000 residents were without electric power for several hours. A few more thunderstorms formed over Northeast Pennsylvania and subsequently entered the Western Catskills of New York around dusk. These storms tore into parts of Sullivan county and tore down trees in Jeffersonville. Approximately eight trees fell on a house, heavily damaging an art studio and it's contents.
The Binghamton radar (KBGM), 51 km away, was scanning. The volume nearest the first event began at 20:41 UTC.
4 thunderstorm wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 1999Every state in 1999This day in weather historyWarnings in New York, July 1999
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 5712880, 5712882, 5712881, 5712883.