NWS Billings MTFF.W 0017July 29, 2026
Flash Flood Warning: Sheridan, WY
The National Weather Service office in Billings issued a flash flood warning for Sheridan in Wyoming, which was in force until 11:30 p.m. local time on July 29. It was the 17th flash flood warning the NWS office in Billings issued in 2026. Wyoming had 9 flash flood warnings in July 2026, against 7 in an average July of 2008-2025 (Wyoming's flash flood warnings by year).
ExpiredWarning
In force for 3 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Billings MT
- Area
- Sheridan
- State
- Wyoming
- Level
- Warning
- Issued
- 8:30 p.m. MDT, July 29, 2026
- Expires
- 11:30 p.m. MDT, July 29, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KBYZ FF.W 0017
- 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
FFWBYZ The National Weather Service in Billings has issued a * Flash Flood Warning for... The Southern Elk Burn Area in... Central Sheridan County in north central Wyoming... * Until 1130 PM MDT. * At 830 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Southern Elk Burn Area. Between 0.5 and 1 inch of rain has fallen. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Flash flooding caused by thunderstorms in and around the Southern Elk Burn Area. SOURCE...Radar indicated. IMPACT...Flooding of areas in and downstream of the Southern Elk Burn Area. * Some locations that will experience flash flooding include... Mainly rural areas of Central Sheridan County.
What the agency told people to do
Life threatening flooding of creeks, roads, and normally dry coulees in and downstream of the Southern Elk burn area is likely. In addition to the flash flooding, the heavy rains may trigger rockslides, mudslides, and debris flows in steep terrain. Be especially cautious at night when it is harder to recognize the dangers of flooding. Remain alert for flooding of creeks, streams, and normally dry coulees even in areas not receiving rainfall downstream of the burn area. These can become raging killer currents in a matter of minutes even from distant rainfall upstream. Please report observed flooding to local emergency officials and request they pass the information to the National Weather Service in Billings.
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.