Thunderstorm Wind, La Salle
- When
- August 4, 4:10 PM CST
- Where
- La Salle County, Earlville
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.580, -88.930
Damaging Winds in Illinois, August 4, 1997
4 thunderstorm wind, 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
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 4
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 radar
The Chicago radar (KLOT), 70 km away, was scanning. The volume nearest the first event began at 22:11 UTC.
Event by event
4 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, La Salle
- When
- August 4, 4:30 PM CST to 4:35 PM CST
- Where
- La Salle County, Utica to Dayton
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.330, -89.020
Thunderstorm Wind, La Salle
- When
- August 4, 4:40 PM CST to 4:45 PM CST
- Where
- La Salle County, Ottawa
- Measured
- 61 kt (70 mph)
- Coordinates
- 41.350, -88.850
Thunderstorm Wind, La Salle
- When
- August 4, 5:05 PM CST
- Where
- La Salle County, Streator
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.120, -88.830
Thunderstorm winds blew down trees, limbs and power lines across La Salle County. The county sheriff's office reported a 70 mph wind gust at Ottawa.
What these are
- 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
- Flood and Damaging Wind in Colorado, August 4, 1997
- Hail in Kentucky, August 4, 1997
- Flash Flood in Nevada, August 4 to 5, 1997
- Hail and Damaging Winds in Nebraska, August 4, 1997
- Damaging Wind and Lightning Strike in Tennessee, August 4, 1997
- Hail in Kentucky, August 4, 1997
- Hail and Damaging Winds in North Carolina, August 4, 1997
- Lightning Strike in Connecticut, August 4, 1997
- Damaging Wind in Tennessee, August 4, 1997
- Flash Flood in Utah, August 4, 1997
- Damaging Wind in Iowa, August 4, 1997
- Damaging Winds in Tennessee, August 4, 1997
More
Every storm in Illinois in 1997Every state in 1997This day in weather historyWarnings in Illinois, August 1997
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: 5616420, 5616421, 5616422, 5616423.