Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
National Weather Service Boise ID
854 AM MDT Sat Aug 22 2026

...GUSTY WINDS AND LOW RELATIVE HUMIDITIES ACROSS PORTIONS OF
SOUTHEAST OREGON DISTRICTS... ...SCATTERED THUNDERSTORMS WITH
LIGHTNING EXPECTED ACROSS PORTIONS OF SOUTHWEST IDAHO DISTRICTS...

Southwest wind gusts will increase to 30-35 mph in eastern Oregon
this afternoon while RH remains 8-15%. The most critical area will
be Burns BLM. Isolated thunderstorms will also develop in eastern
Oregon this afternoon east of Burns BLM. Storms may produce outflow
wind gusts to 50 mph.

Scattered thunderstorms will also develop in south-central Idaho
this afternoon, particularly in the southern Highlands between 2
PM and 8 PM MDT. Thunderstorms will produce outflow wind gusts to
50 mph along with abundant lightning.

IDZ401>403-421-424-426-222300-
/O.CON.KBOI.FW.W.0019.260822T1800Z-260823T0600Z/
Western Payette National Forest-Eastern Payette National Forest-
Northern Boise National Forest-
Southern Boise/Western Sawtooth NF, including the Camas Prairie-
Western Twin Falls BLM-Southern Highlands-
854 AM MDT Sat Aug 22 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT
MDT TONIGHT FOR LIGHTNING FOR WESTERN PAYETTE NATIONAL FOREST...
EASTERN PAYETTE NATIONAL FOREST...NORTHERN BOISE NATIONAL
FOREST...SOUTHERN BOISE/WESTERN SAWTOOTH NF, INCLUDING THE CAMAS
PRAIRIE...WESTERN TWIN FALLS BLM AND SOUTHERN HIGHLANDS...WHICH
ARE FIRE WEATHER ZONES 401...402...403...421...424 AND 426...

* AFFECTED AREA...In Idaho, Fire Weather Zones 401 Western
  Payette National Forest, 402 Eastern Payette National Forest,
  403 Northern Boise National Forest, 421 Southern Boise/Western
  Sawtooth NF, including the Camas Prairie, 424 Western Twin
  Falls BLM and 426 Southern Highlands.

* TIMING...From noon today to midnight MDT tonight.

* THUNDERSTORMS...Scattered coverage with abundant lightning.

* OUTFLOW WINDS...Gusty erratic winds up to 50 mph.

* IMPACTS...Any fire that develops will catch and spread
  quickly. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will occur shortly.

&&

$$
W

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
317 AM MDT Sat Aug 22 2026

...CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED ON SATURDAY DUE
TO SCATTERED THUNDERSTORM ACTIVITY ACROSS MUCH OF EASTERN IDAHO...

IDZ410-422-425-427-475-476-230300-
/O.CON.KPIH.FW.W.0022.260822T1800Z-260823T0300Z/
Upper Snake River Valley/Idaho Falls BLM-
Sawtooth Range/Northern Sawtooth NF-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
East Salmon River Mountains/Salmon NF-
Lemhi and Lost River Range/Challis NF-
317 AM MDT Sat Aug 22 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES
410, 422, 425, 427, 475, AND 476...

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River
  Valley/Idaho Falls BLM, Fire Weather Zone 422 Sawtooth
  Range/Northern Sawtooth NF, Fire Weather Zone 425 Middle Snake
  River Valley/Twin Falls BLM north of the Snake River, Fire
  Weather Zone 427 Goose Creek and Raft River Valley/Southern
  Sawtooth NF/Twin Falls BLM south of the Snake River, Fire
  Weather Zone 475 East Salmon River Mountains/Salmon NF and
  Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF.

* IMPACTS...Frequent lightning will increase risk of new fire
  starts.

* THUNDERSTORMS...Scattered coverage with frequent lightning.

* OUTFLOW WINDS...Gusty and erratic winds to 60 mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$