Southern Idaho Weather | Magic Valley | Twin Falls | KMVT

Red Flag Warning

Areas Affected: Lemhi and Lost River Range, Challis NF; Sawtooth Range, Northern Sawtooth NF

NWS Pocatello (Southeastern Idaho)

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 422 AND 476 ABOVE 7500 FEET ELEVATION...

* AFFECTED AREA...Fire Weather Zone 422 Sawtooth Range/Northern Sawtooth NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF.

* WINDS...Southwest 15 to 25 mph with gusts up to 30 mph.

* RELATIVE HUMIDITY...As low as 10 percent.

* IMPACTS...These weather conditions, combined with extremely dry and receptive fuels, can mean rapid spread rates, high fire intensity, and produce extreme fire behavior such as fire whirls.

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.


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