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Elev 5919 ft, 43.7 °N, 114.35 °W

Sun Valley, ID Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Sun Valley, ID
Elevation: 5919ft
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Active Weather Alerts

Red Flag Warning
Issued: 3:26 PM Jul. 31, 2025 – National Weather Service
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
MIDNIGHT MDT TONIGHT FOR SCATTERED THUNDERSTORMS FOR IDAHO FIRE
WEATHER ZONES 422 AND 427...

* AFFECTED AREA...Fire Weather Zone 422 Sawtooth Range/Northern
Sawtooth NF and Fire Weather Zone 427 Goose Creek and Raft
River Valley/Southern Sawtooth NF/Twin Falls BLM south of the
Snake River.

* IMPACTS...Critical fire weather conditions are expected this
afternoon and evening. Lightning may generate new fire starts.
Any new fire starts or existing fires may spread rapidly.

* THUNDERSTORMS...25 to 45 percent coverage expected.

* OUTFLOW WINDS...A dry low level environment will promote for
storms to produce gusty outflow wind gusts in excess of 40 mph,
locally higher 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.

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