Key facts
- Alert
- Red Flag Warning (severe)
- Issued by
- National Weather Service offices: Riverton WY, Rapid City SD
- Areas
- Johnson County/Casper BLM; Northern Campbell; Southern Campbell; Crook County Plains; Weston County Plains
- In effect
- until 8:00 PM MDT, Oct 23, 2026
What the National Weather Service says
“A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly.”
National Weather Service offices: Riverton WY, Rapid City SD, Red Flag Warning, 10:45 PM MDT Oct 22, 2026 · official alert
“Low Humidities...Strong Gusty Winds...and Wind Shift with a Cold Front could cause erratic fire behavior.”
National Weather Service offices: Riverton WY, Rapid City SD, Red Flag Warning, 10:45 PM MDT Oct 22, 2026 · official alert
What to do
Avoid anything that can start a fire while the warning is in effect. That includes outdoor burning, campfires, and activities that throw sparks.
Check that vehicles and equipment do not drag chains or create sparks, and do not park on dry grass. Dispose of cigarettes safely.
Be ready to leave quickly. Follow local evacuation orders immediately if a fire starts near you, and keep a phone charged and fuel in your vehicle.
Expect conditions to stay changeable. A cold front is expected to move in after 8 PM MDT Friday, with northerly winds of 20 to 35 mph and gusts of 35 to 40 mph.
Context
Fire has affected this region before. FEMA lists a wildfire disaster declaration dated 2024-11-13 that covers both Johnson County and Crook County.
FEMA flood-insurance claim counts only cover insured homes and businesses, so they show flood history rather than fire. Campbell County has 57 claims from 1978 to 2023, Crook County has 22 from 1978 to 2014, and Johnson County has 6 from 1995 to 2015.
Updates
- The red flag warning is no longer in effect.
- The National Weather Service updated the red flag warning; it remains in effect until 8:00 PM MDT.
- The National Weather Service updated the red flag warning; it remains in effect until 11:00 PM MDT.
- National Weather Service offices: Riverton WY, Rapid City SD issued the red flag warning until 8:00 PM MDT.
History here
This county: 6 flood insurance claims in FEMA's National Flood Insurance Program records since 1995, most recent 2015.
This county: recent federal disaster declarations
- DR-4845 (2024): wildfires
- DR-4227 (2015): severe storms and flooding
- DR-4007 (2011): severe storms, flooding, and landslides
This county: 57 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2023.
This county: recent federal disaster declarations
- DR-4739 (2023): flooding
This county: 22 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2014.
This county: recent federal disaster declarations
- DR-4845 (2024): wildfires
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Questions
- Is there a Red Flag Warning in Wyoming right now?
- Yes. The National Weather Service issued a Red Flag Warning for Johnson County/Casper BLM, Northern Campbell, Southern Campbell, Crook County Plains and Weston County Plains. It runs from noon to 8:00 PM MDT Friday.
- What conditions are expected during this Red Flag Warning?
- The National Weather Service expects southwest winds of 25 to 35 mph with gusts up to 50 mph, and humidity as low as 20 percent. These conditions could cause erratic fire behavior.
- When does the Red Flag Warning end?
- It ends at 8:00 PM MDT Friday. A cold front is expected to arrive after that time, bringing northerly winds of 20 to 35 mph with gusts of 35 to 40 mph.
Sources
- National Weather Service offices: Riverton WY, Rapid City SD: Red Flag Warning, Oct 22, 2026 weather.gov
- FEMA OpenFEMA: NFIP claims and disaster declarations fema.gov
How this page is made. The Herebeat Hazard Desk builds event pages from official U.S. government data (National Weather Service, USGS, FEMA). The text is written with AI from that data; every number and quote is checked against the official source automatically before publishing, and the page is updated when the agency updates the event. The official source is always the reference. Spotted a mistake? info@herebeat.app. About the Hazard Desk.