Red Flag Warning for Goose Creek and Raft River Valley
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NWS Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity in Fire Weather Zone 427, effective noon to 9 PM MDT Saturday.
Read this weather record in 30 seconds
- Record type
- Red Flag Warning
- Affected area
- Southern Idaho
- Issued
- September 12, 2026
- Issuing authority
- NWS Pocatello ID
Fire-weather notices describe conditions that can support rapid fire spread; they do not report that a fire is present. Check local emergency sources for any active incident.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Red Flag Warning has been issued by the National Weather Service in Pocatello ID. The alert is effective from September 12, 2026 at 12:00 PM MDT until September 12, 2026 at 9:00 PM MDT.
Affected Areas
Fire Weather Zone 427: Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River.
What You Should Do
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. Thunderstorm coverage of 25 percent, without specific rainfall criteria. Other high impact events deemed critical by the National Weather Service and area fire management agencies.
Expected Conditions
Winds west 10 to 20 mph with gusts up to 30 mph. Relative humidity as low as 14 percent. Low humidity and moderate to strong wind causes rapid fire spread and higher intensity wildfires.
Timeline
The warning is in effect from noon to 9 PM MDT on Saturday, September 12, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,126 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 12, 2026.
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