Flash Flood, Osceola
- When
- June 11, 12:35 AM CST to 2:00 AM CST
- Where
- Osceola County, Melvin
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.379, -95.624 (the zone’s center; the record gives no point)
Heavy rain caused flooding of several roads.
Flash Flood in Iowa, June 11, 2002
1 flash flood, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 Jun 10, 8:30 PM CST, 4 hours 5 minutes earlier.
Area forecast discussion, Jun 10, 8:30 PM CST, 4 hours 5 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 930 PM CDT MON JUN 10 2002 RW/TRW FIRING UP ALONG DRYLINE E OF I29. VERY WARM AIR ALOFT WITH WET BULB ZERO AROUND 13K. HARD TO GET ANY HAIL WITH THE STORMS WITH VERY HEAVY RAINS FALLING. RADAR ESTIMATES OF 1 TO 2.5 INCHES ACRS PARTS OF NW IA. SPOTTERS VERIFY THIS QUITE WELL, WITH ONLY PEA SIZE HAIL IN A FEW LOCALES. HAVE UPDATED FCST TO ACCOUNT FOR STORMS THAT DEVELOPED A LTL FURTHER W. OTHERWISE REST OF FCST OK. .FSD...NONE.
The radar
The Sioux Falls radar (KFSD), 92 km away, was scanning. The volume nearest the first event began at 06:36 UTC.
Event by event
1 flash flood. Local standard time, as filed.
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Flash Flooding in Kansas, June 11 to 12, 2002
- Hail and Damaging Winds in Kansas, June 11 to 12, 2002
- Flash Flood and Hail in Texas, June 11, 2002
- Hail and Damaging Winds in Missouri, June 11, 2002
- Tornadoes and Flash Flooding in Illinois, June 11, 2002
- Hail and Damaging Winds in Colorado, June 11, 2002
- Damaging Winds in Illinois, June 11, 2002
- Damaging Wind in Pennsylvania, June 11, 2002
- Hail and Damaging Winds in Kansas, June 11 to 12, 2002
- Flash Flood in Missouri, June 11 to 12, 2002
- Flash Flood in Minnesota, June 11, 2002
- Hail and Damaging Wind in Kansas, June 11, 2002
More
Every storm in Iowa in 2002Every state in 2002This day in weather historyWarnings in Iowa, June 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: 5305729.