NWS Omaha/Valley NEFF.W 0043September 30, 2026
Flash Flood Warning: Pottawattamie, Douglas and Sarpy, IA and NE
The National Weather Service office in Omaha/Valley issued a flash flood warning for Pottawattamie, Douglas and Sarpy in Iowa, Nebraska, which was in force until 2:00 a.m. local time on October 1. It was the 43rd flash flood warning the NWS office in Omaha/Valley issued in 2026. Iowa had 17 flash flood warnings in September 2026, against 9 in an average September of 2008-2025 (Iowa's flash flood warnings by year).
ExpiredWarning
In force for 4 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Omaha/Valley NE
- Area
- Pottawattamie, Douglas and Sarpy
- State
- Iowa
- Level
- Warning
- Issued
- 10:03 p.m. CDT, September 30, 2026
- Expires
- 2:00 a.m. CDT, October 1, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KOAX FF.W 0043
- Official source
- National Weather Service: the notice at its source
Flash Flood Warnings in Iowa since 2008Every warning type in Iowa
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
FFWOAX The National Weather Service in Omaha/Valley has issued a * Flash Flood Warning for... Southwestern Pottawattamie County in southwestern Iowa... Douglas County in east central Nebraska... Sarpy County in east central Nebraska... * Until 200 AM CDT. * At 1003 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 2 to 3 inches are possible in the warned area. 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... Omaha, Council Bluffs, Bellevue, Papillion, Ralston, Gretna, Bennington, Boys Town, Elkhorn, Millard, Offutt AFB, La Vista, Carter Lake, Valley, Springfield, Waterloo, Crescent, Cedar Creek, Aksarben and Chalco. This includes the following highways... Interstate 80 in Nebraska between mile markers 428 and 454. Interstate 29 between mile markers 43 and 63. Interstate 80 in Iowa between mile markers 1 and 11.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.
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.