Tornado, St. Lawrence
- When
- August 15, 4:30 PM CST
- Where
- St. Lawrence County
- Rating
- F2
- Path length
- 0.2 mi
- Path width
- 10 yd
- Deaths
- 1 direct, 0 indirect
- Injuries
- 3 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 44.280, -75.570
Tornado and Damaging Winds in New York, August 15, 1986
13 thunderstorm wind, 1 tornado, as filed by the National Weather Service.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 1
- Injuries
- 3
- Property damage
- $250,000
- Crop damage
- None recorded
- Events
- 14
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.
Event by event
13 thunderstorm wind, 1 tornado. Local standard time, as filed.
Thunderstorm Wind, Seneca
- When
- August 15, 4:30 PM CST
- Where
- Seneca County
- Coordinates
- 42.780, -76.850
Thunderstorm Wind, Oswego
- When
- August 15, 4:30 PM CST
- Where
- Oswego County
- Coordinates
- 43.280, -76.070
Thunderstorm Wind, Oswego
- When
- August 15, 4:30 PM CST
- Where
- Oswego County
- Coordinates
- 43.370, -76.280
Thunderstorm Wind, Oswego
- When
- August 15, 4:30 PM CST
- Where
- Oswego County
- Coordinates
- 43.420, -75.900
Thunderstorm Wind, Tompkins
- When
- August 15, 4:30 PM CST
- Where
- Tompkins County
- Coordinates
- 42.420, -76.500
Thunderstorm Wind, Tioga
- When
- August 15, 4:30 PM CST
- Where
- Tioga County
- Coordinates
- 42.220, -76.330
Thunderstorm Wind, Cayuga
- When
- August 15, 4:30 PM CST
- Where
- Cayuga County
- Coordinates
- 42.950, -76.530
Thunderstorm Wind, St. Lawrence
- When
- August 15, 4:45 PM CST
- Where
- St. Lawrence County
- Coordinates
- 44.280, -75.570
Thunderstorm Wind, Oswego
- When
- August 15, 4:55 PM CST
- Where
- Oswego County
- Coordinates
- 43.320, -76.420
Thunderstorm Wind, Oswego
- When
- August 15, 5:24 PM CST
- Where
- Oswego County
- Coordinates
- 43.280, -76.070
Thunderstorm Wind, Oneida
- When
- August 15, 6:06 PM CST
- Where
- Oneida County
- Coordinates
- 43.480, -75.330
Thunderstorm Wind, Oneida
- When
- August 15, 6:10 PM CST
- Where
- Oneida County
- Coordinates
- 43.230, -75.720
Thunderstorm Wind, Herkimer
- When
- August 15, 6:10 PM CST
- Where
- Herkimer County
- Coordinates
- 43.470, -74.930
The people who died
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Tornado, St. Lawrence | 1986-08-15 | Direct |
What these are
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
More
Every storm in New York in 1986Every state in 1986This day in weather historyThe tornado archive for New York, 1986Warnings in New York, August 1986
Sources
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 2026-09-24. Each event’s entry at NCEI: 10075300, 10075301, 10075302, 10075303, 10075304, 10075305, 10075306, 10075307, 10076157, 10076158, 10076372, 10076373, 10076374, 10076375.