Red Flag Warning Issued for Upper Snake River Valley/Idaho Falls BLM

Source: NOAA · Upper Snake River Valley, Idaho

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NWS Pocatello has issued a Red Flag Warning for Fire Weather Zone 410 from noon to 8 PM MDT Thursday due to gusty winds and low humidity.

Read this weather record in 30 seconds

Record type
Red Flag Warning
Affected area
Upper Snake River Valley, Idaho
Issued
September 9, 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 noon to 8 PM MDT Thursday for gusty winds and low relative humidity.

Affected Areas

Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM.

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 southwest 10 to 20 mph with gusts up to 35 mph. Relative humidity as low as 12 percent. Existing or new fires could grow rapidly.

Timeline

The warning is in effect from 12:00 PM MDT Thursday, September 10, 2026, until 8:00 PM MDT Thursday, September 10, 2026.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

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.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Pocatello has issued a Red Flag Warning for Fire Weather Zone 410 from noon to 8 PM MDT Thursday due to gusty winds and low humidity.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Upper Snake River Valley, Idaho. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.