NWS Rapid City SDFW.W 0038September 11, 2026
Red Flag Warning: Southern Black Hills, Fall River County Area, Custer County Plains and 4 more, SD and WY
The National Weather Service office in Rapid City issued a red flag warning for Southern Black Hills, Fall River County Area, Custer County Plains and 4 more in South Dakota, Wyoming, which was in force until 7:00 p.m. local time on September 11. It was the 38th red flag warning the NWS office in Rapid City issued in 2026. South Dakota had 6 red flag warnings in September 2026, against 5 in an average September of 2008-2025 (South Dakota's red flag warnings by year).
ExpiredWarning
In force for 8 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Rapid City SD
- Area
- Southern Black Hills, Fall River County Area, Custer County Plains and 4 more
- State
- South Dakota
- Level
- Warning
- Issued
- 6:05 a.m. MDT, September 11, 2026
- In force from
- 11:00 a.m. MDT, September 11, 2026
- Expires
- 7:00 p.m. MDT, September 11, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KUNR FW.W 0038
- 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
...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM MDT THIS EVENING DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR SOUTHERN BLACK HILLS, FALL RIVER COUNTY AREA, CUSTER COUNTY PLAINS, PINE RIDGE AREA, BADLANDS AREA, BENNETT COUNTY AREA, AND WESTON COUNTY PLAINS... * AFFECTED AREA...Fire Weather Zones 317, 321, 322, 325, 326, 332, and 333. * TIMING...From 11 AM this morning to 7 PM MDT this evening. * WINDS...Northwest winds 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.
What the agency told people to do
A Red Flag Warning means that critical fire weather conditions are expected. A combination of strong winds, low relative humidity, and warm temperatures could contribute to extreme fire behavior.
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.