NWS Omaha/Valley NEFF.W 0048September 30, 2026
Flash Flood Warning: Cass, Gage, Johnson and 2 more, NE
The National Weather Service office in Omaha/Valley issued a flash flood warning for Cass, Gage, Johnson and 2 more in Nebraska, which was in force until 3:00 a.m. local time on October 1. It was the 48th flash flood warning the NWS office in Omaha/Valley issued in 2026. Nebraska had 9 flash flood warnings in September 2026, against 4 in an average September of 2008-2025 (Nebraska's flash flood warnings by year).
ExpiredWarning
In force for 3.1 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
- Cass, Gage, Johnson and 2 more
- State
- Nebraska
- Level
- Warning
- Issued
- 11:54 p.m. CDT, September 30, 2026
- Expires
- 3:00 a.m. CDT, October 1, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KOAX FF.W 0048
- 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
FFWOAX The National Weather Service in Omaha/Valley has issued a * Flash Flood Warning for... Southern Cass County in southeastern Nebraska... Northern Gage County in southeastern Nebraska... Northwestern Johnson County in southeastern Nebraska... Southeastern Lancaster County in southeastern Nebraska... Otoe County in southeastern Nebraska... * Until 300 AM CDT. * At 1154 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. The expected rainfall rate is 1 to 2.5 inches in 1 hour. Additional rainfall amounts of 1 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... Syracuse, Hickman, Weeping Water, Bennet, Elmwood, Firth, Adams, Palmyra, Cortland, Sterling, Unadilla, Panama, Avoca, Union, Clatonia, Roca, Hallam, Nehawka and Pickrell.
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.