Thunderstorm Wind, Lyon
- When
- May 29, 9:15 PM CST
- Where
- Lyon County, 4 mi W of George
- Measured
- 61 kt (70 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.350, -96.083
Thunderstorm winds blew down trees.
Damaging Wind in Iowa, May 29, 2002
1 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
- 1
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.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before the first event at May 29, 8:35 PM CST, 40 minutes earlier.
Area forecast discussion, May 29, 8:35 PM CST, 40 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 935 PM CDT WED MAY 29 2002 SCT SHWRS/TSTMS ALMOST THRU FSD AND WILL BE CONCENTRATE DOVER SWRN MN NEXT FEW HRS. HWVR STILL EXPCT SOME NEW DVLPMNT WITH BOUNDRIES MOVG INTO MORE MOIST AIR OVER NWRN IA THO DYNAMICS BETTER TO THE N. HAVE UPDATED TO TAKE OUT MENTN WRN PART OF AREA WITH JUST SOME REFINEMENT TO THE E...OTRW FCST LOOKS GOOD. .FSD...NONE WILLIAMS
The radar
The Sioux Falls radar (KFSD), 58 km away, was scanning. The volume nearest the first event began at 03:17 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
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
- Blizzard in Washington, May 29, 2002
- Flash Flooding and Hail in New York, May 29 to 30, 2002
- Hail in Texas, May 29, 2002
- Flash Flooding and Hail in Iowa, May 29, 2002
- Hail and Damaging Wind in Texas, May 29, 2002
- Hail and Damaging Winds in Ohio, May 29, 2002
- Damaging Wind in Michigan, May 29, 2002
- Hail and Lightning Strike in Florida, May 29, 2002
- Damaging Wind in Georgia, May 29, 2002
- Tornadoes and Hail in Minnesota, May 29, 2002
- Tornado and Flash Flood in Texas, May 29, 2002
- Hail and Damaging Winds in Texas, May 29, 2002
More
Every storm in Iowa in 2002Every state in 2002This day in weather historyWarnings in Iowa, May 2002
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: 5295626.