NWS Boise IDFW.W 0019August 21, 2026
Red Flag Warning: Burns BLM, Steens Mountain and Southern Grasslands, OR
The National Weather Service office in Boise issued a red flag warning for Burns BLM, Steens Mountain and Southern Grasslands in Oregon, which was in force until 9:00 p.m. local time on August 22. It was the 19th red flag warning the NWS office in Boise issued in 2026. Oregon had 22 red flag warnings in August 2026, against 19 in an average August of 2008-2025 (Oregon's red flag warnings by year).
ExpiredWarning
In force for 9 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Boise ID
- Area
- Burns BLM, Steens Mountain and Southern Grasslands
- State
- Oregon
- Level
- Warning
- Issued
- 5:20 p.m. MDT, August 21, 2026
- In force from
- 12:00 p.m. MDT, August 22, 2026
- Expires
- 9:00 p.m. MDT, August 22, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KBOI FW.W 0019
- 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
...GUSTY WINDS AND LOW RELATIVE HUMIDITIES ACROSS PORTIONS OF SOUTHEAST OREGON DISTRICTS... ...SCATTERED THUNDERSTORMS WITH LIGHTNING EXPECTED ACROSS PORTIONS OF SOUTHWEST IDAHO DISTRICTS... Pre-frontal winds pick up on Saturday with afternoon wind gusts up to 35 mph at the same time RHs are 10-15% across Oregon zones 670, 671 and 672. In addition, isolated thunderstorms are possible over mountains early Saturday increasing in coverage across portions of Southwest Idaho Saturday afternoon and evening. Isolated thunderstorms possible across the Vale district Saturday afternoon with frontal passage. Storms that do develop will be fairly strong, capable of producing lightning, outflow gusts up to 50 mph, and heavy rain. The National Weather Service in Boise has issued a Red Flag Warning for winds and low relative humidities, which is in effect from 11 AM to 8 PM PDT Saturday. * AFFECTED AREA...In Oregon, Fire Weather Zones 670 Burns BLM, 671 Steens Mountain and 672 Southern Grasslands. * TIMING...From 11 AM to 8 PM PDT Saturday. * WINDS...Southwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...10 to 15 percent. * TEMPERATURES...86 to 94 degrees. * THUNDERSTORMS...Isolated coverage with lightning across 671 and 672. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
What the agency told people to do
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly.
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.