Headline

Red Flag Warning issued June 19 at 12:38PM MDT until June 20 at 9:00PM MDT by NWS Pocatello ID

Description

...RED FLAG WARNING IN EFFECT FROM 6 AM TO 9 PM MDT SATURDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 413, 422,
427, 475, AND 476...

The National Weather Service in Pocatello has issued a Red Flag
Warning for scattered thunderstorms, which is in effect from 6 AM
to 9 PM MDT Saturday. The Fire Weather Watch is no longer in
effect.

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River
Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou
Range/Caribou NF, Fire Weather Zone 422 Sawtooth
Range/Northern Sawtooth NF, 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...Critical fire weather conditions are expected
Saturday. Lightning may generate new fire starts. Any new fire
starts or existing fires may spread rapidly.

* THUNDERSTORMS...25 to 45 percent coverage.

* OUTFLOW WINDS...Stronger storms will be capable of producing
wind gusts up to 55 mph.

Instructions

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.

Additional Details