Flash Flood, Sully
- When
- July 14, 1:00 AM CST to 2:30 AM CST
- Where
- Sully County, 11.94 mi SE of Onida to 8.33 mi ESE of Onida
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 44.570, -99.910
Flash Flooding in South Dakota, July 14, 2009
Showers and thunderstorms continued to develop southward along a cold front moving east across the state. Two to nearly 3 inches of rain fell within 2 hours resulting in flash flooding with several county and township roads inundated with water.
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
- 5
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 happened
The episode as NWS ABR wrote it up.
Showers and thunderstorms continued to develop southward along a cold front moving east across the state. Two to nearly 3 inches of rain fell within 2 hours resulting in flash flooding with several county and township roads inundated with water. Area croplands were also soaked with running water in many fields.
The radar
The Aberdeen radar (KABR), 153 km away, was scanning. The volume nearest the first event began at 06:58 UTC.
Event by event
5 flash flood. Local standard time, as filed.
Flash Flood, Hughes
- When
- July 14, 1:00 AM CST to 2:30 AM CST
- Where
- Hughes County, 6.07 mi ENE of Blunt to 2.09 mi SW of Harrold
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 44.540, -99.860
Flash Flood, Hyde
- When
- July 14, 1:30 AM CST to 3:00 AM CST
- Where
- Hyde County, 10.44 mi NNW of Holabird to 8.21 mi SW of Holabird
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 44.660, -99.660
Flash Flood, Hand
- When
- July 14, 1:30 AM CST to 3:00 AM CST
- Where
- Hand County, 6.24 mi NW of Ree Hgts to 4.59 mi W of Danforth
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 44.590, -99.280
Flash Flood, Buffalo
- When
- July 14, 1:30 AM CST to 3:00 AM CST
- Where
- Buffalo County, 9.99 mi NNW of Ft Thompson to 11.33 mi W of Shelby
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 44.190, -99.480
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
- Flash Flood and Hail in Minnesota, July 14, 2009
- Tornadoes and Flash Flood in Minnesota, July 14, 2009
- Hail and Damaging Winds in Iowa, July 14 to 15, 2009
- Damaging Winds in Kansas, July 14 to 15, 2009
- Hail in Iowa, July 14, 2009
- Tornado and Hail in Kansas, July 14 to 15, 2009
- Hail and Damaging Winds in South Dakota, July 14, 2009
- Heavy Rain in North Dakota, July 14, 2009
- Flash Flood and Hail in Minnesota, July 14, 2009
- Hail and Damaging Winds in Minnesota, July 14, 2009
- Flash Flood and Hail in Iowa, July 14, 2009
- Flash Flooding in South Dakota, July 14, 2009
More
Every storm in South Dakota in 2009Every state in 2009This day in weather historyWarnings in South Dakota, July 2009
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 2026-10-01. Each event’s entry at NCEI: 192608, 192609, 192610, 192611, 192612.