Hail, Sioux
- When
- August 11, 2:20 PM CST
- Where
- Sioux County, 8 mi N of Ft Yates
- Measured
- 1 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 46.200, -100.633
The public reported skirting torn off their moble home from the storm.
Hail in North Dakota, August 11, 2002
1 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
- 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 Bismarck, ND wrote its last area forecast discussion before the first event at Aug 11, 1:30 PM CST, 50 minutes earlier.
Area forecast discussion, Aug 11, 1:30 PM CST, 50 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 230 PM CDT SUN AUG 11 2002 CONCERNS ARE NORTHWARD EXTENT OF SEVERE CONVECTION DEVELOPING OVER SOUTH CENTRAL NORTH DAKOTA EARLY THIS AFTERNOON AND WINDS BEHIND COLD FRONT. STRONG MID LEVEL SHORT WAVE MAKING ITS WAY TOWARDS CWA AND FORECAST TO MOVE TO THE EAST AND STRENGTHEN. AT SURFACE PREFRONTAL TROUGH NOW THORUGH BISMARCK WITH COLD FRONT WEST OF KMOT...KN60 TO KD06 IN SOUTH DAKOTA. CONVECTION FIRING RAPIDLY BETWEEN TROUGH AND COLDFRONT. SEVERE CONVECTION WILL MOVE EAST BUT CLOUD COVER NORTH OF KN60 TO KDVL LINE WILL LIMIT AVAILABLE ENERGY FOR SEVERE CONVECTION. TO THE SOUTH 60+ TDS PULLED NORTH AS LOW PRESSURE DEEPENS OVER WESTERN SOUTH DAKOTA. CAPES OF 2000 J/KG FROM 18Z GOES SOUNDERS OVER SOUTHEAST NORTH DAKOTA. WILL LIKELY BE ABLE TO CUT KBIS ZONE GROUP OUT OF SEVERE THREAT BEFORE ZONE DEADLINES. SOUTHEAST ZONES WILL CONTINUE UNDER THREAT. REST OF AFD POSPONED DUE TO DEVELOPING CONVECTION. .BIS...NONE. HW
The radar
The Bismarck radar (KBIS), 64 km away, was scanning. The volume nearest the first event began at 20:18 UTC.
Event by event
1 hail. Local standard time, as filed.
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
- Heat in Pennsylvania, August 11 to 20, 2002
- Tornado in North Dakota, August 11, 2002
- Heat in New Jersey, August 11 to 20, 2002
- Hail and Damaging Winds in Nebraska, August 11, 2002
- Hail and Damaging Wind in Nebraska, August 11, 2002
- Flash Flood and Hail in Wisconsin, August 11, 2002
- Wildfire in California, August 11 to 15, 2002
- Damaging Wind in South Dakota, August 11, 2002
- Hail and Damaging Winds in Minnesota, August 11 to 12, 2002
- Flooding and Hail in Ohio, August 11, 2002
- Tornadoes and Hail in Kansas, August 11 to 12, 2002
- Hail and Damaging Wind in Kansas, August 11, 2002
More
Every storm in North Dakota in 2002Every state in 2002This day in weather historyWarnings in North Dakota, August 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: 5310095.