NWS Aberdeen SDFF.W 0005July 30, 2026
Flash Flood Warning: Brown and Day, SD
The National Weather Service office in Aberdeen issued a flash flood warning for Brown and Day in South Dakota, which was in force until 10:45 p.m. local time on July 30. It was the 5th flash flood warning the NWS office in Aberdeen issued in 2026. South Dakota had 10 flash flood warnings in July 2026, against 9 in an average July of 2008-2025 (South Dakota's flash flood warnings by year).
ExpiredWarning
In force for 5.9 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Aberdeen SD
- Area
- Brown and Day
- State
- South Dakota
- Level
- Warning
- Issued
- 4:51 p.m. CDT, July 30, 2026
- Expires
- 10:45 p.m. CDT, July 30, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KABR FF.W 0005
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
FFWABR The National Weather Service in Aberdeen has issued a * Flash Flood Warning for... Central Brown County in northeastern South Dakota... Western Day County in northeastern South Dakota... * Until 1045 PM CDT. * At 451 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Aberdeen, Groton, Bath, Columbia, Westport, Putney, Tacoma Park, Sand Lake Wildlife Refuge, Houghton, Barnard and Richmond Lake Rec Area.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.