NWS Billings MTFF.W 0002May 30, 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 1:30 a.m. local time on May 31. It was the 2nd flash flood warning the NWS office in Billings issued in 2026. Wyoming had 1 flash flood warning in May 2026, against 4 in an average May of 2008-2025 (Wyoming's flash flood warnings by year).
ExpiredWarning
In force for 2.9 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
- 10:35 p.m. MDT, May 30, 2026
- Expires
- 1:30 a.m. MDT, May 31, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KBYZ FF.W 0002
- Official source
- National Weather Service: the notice at its source
Flash Flood Warnings in Wyoming since 2008Every warning type in Wyoming
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 Northern Elk Burn Area in... Northwestern Sheridan County in north central Wyoming... * Until 130 AM MDT. * At 1035 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Northern Elk Burn Area. Between 0.7 and 1.2 inches of rain have fallen a few miles west of Parkman. Additional rainfall is occurring. Flash flooding and debris flow is expected to begin shortly. HAZARD...Flash flooding and debris flow caused by thunderstorms in and around the Northern Elk Burn Area. SOURCE...Radar indicated. IMPACT...Flooding of areas in and downstream of the Northern Elk Burn Area...mainly on northeast side of burn area. * Some locations that will experience flash flooding include... Parkman.
What the agency told people to do
Life threatening flooding of creeks, roads, and normally dry coulees in and downstream of the Northern 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.
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.