Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
225 AM MDT Tue Jul 15 2025
IDZ410-411-413-427-160300-
/O.CON.KPIH.FW.W.0005.250715T1800Z-250716T0300Z/
Upper Snake River Valley/Idaho Falls BLM-
Centennial Mountains and Snake River Range/Targhee NF-
Caribou Range/Caribou NF-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
225 AM MDT Tue Jul 15 2025
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES
410, 411, 413, AND 427...
* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River
Valley/Idaho Falls BLM, Fire Weather Zone 411 Centennial
Mountains and Snake River Range/Targhee NF, Fire Weather Zone
413 Caribou Range/Caribou NF and Fire Weather Zone 427 Goose
Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River.
* TIMING...Scattered thunderstorms are expected to develop during
the afternoon and evening hours, supporting the potential for
gusty outflow winds and frequent lightning.
* WINDS...A dry low level environment will promote the potential
for storms to produce gusty outflow wind gusts in excess of
40-50 mph, locally higher up to around 60 mph.
* RELATIVE HUMIDITY...As low as 15 to 25 percent.
* THUNDERSTORMS...25 to 45 percent coverage expected.
* IMPACTS...Critical fire weather conditions are expected today.
Lightning may generate new fire starts. Any new fire starts or
existing fires may spread rapidly.
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.
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