Hail, Osceola
- When
- April 20, 9:00 PM CST
- Where
- Osceola County, 2 mi W of Sibley
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 43.400, -95.800
Hail in Iowa, April 20, 2001
2 hail, 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
- 2
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 Apr 20, 8:55 PM CST, 5 minutes earlier.
Area forecast discussion, Apr 20, 8:55 PM CST, 5 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 955 PM CDT FRI APR 20 2001 UPDATED CWA ZONES TO INCLUDE SEVERE THUNDERSTORM WATCH. SEVERE STORMS MOVING THROUGH NORTHWEST IOWA WITH WARNINGS BEING ISSUED. EARLIER FORECAST HOLDING UP WELL. ADDITIONAL UPDATES AS NEEDED TO FINE TUNE RAPIDLY CHANGING WEATHER THIS EVENING. THUNDERSTORMS WILL MOVE ACROSS SOUTHWEST MINNESOTA THROUGH MIeDNIGHT...WITH POSSIBLE SEVERE WEATHER. .FSD...NONE UMLAND
The radar
The Sioux Falls radar (KFSD), 78 km away, was scanning. The volume nearest the first event began at 02:58 UTC.
Event by event
2 hail. Local standard time, as filed.
Hail, Osceola
- When
- April 20, 9:22 PM CST
- Where
- Osceola County, May City
- Measured
- 0.88 in hail
- Reported by
- UNKNOWN
- Coordinates
- 43.317, -95.483
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Iowa, April 20 to 21, 2001
- Hail in California, April 20, 2001
- Hail and Damaging Winds in Nebraska, April 20, 2001
- Damaging Wind in Nebraska, April 20, 2001
- Damaging Wind in California, April 20, 2001
- Damaging Wind in Nebraska, April 20, 2001
- Tornado and Hail in Kansas, April 20, 2001
- Damaging Wind in Wyoming, April 20, 2001
- Tornadoes and Hail in Nebraska, April 20, 2001
- High Wind in Colorado, April 20, 2001
- Hail and Damaging Winds in Kansas, April 20, 2001
- High Wind in Colorado, April 20, 2001
More
Every storm in Iowa in 2001Every state in 2001This day in weather historyWarnings in Iowa, April 2001
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: 5241779, 5241780.