478
WWUS85 KBOI 171031
RFWBOI
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
431 AM MDT THU SEP 17 2026
..SCATTERED THUNDERSTORMS WITH GUSTY WINDS AND LITTLE RAINFALL
A STRONG LOW PRESSURE SYSTEM WILL BRING SCATTERED THUNDERSTORMS
THIS AFTERNOON WITH MINIMAL RAINFALL AND OUTFLOW WIND GUSTS UP TO
50 MPH.
IDZ403-421-ORZ670-671-674-675-171845-
/O.UPG.KBOI.FW.A.0013.260917T1800Z-260918T0300Z/
/O.NEW.KBOI.FW.W.0023.260917T1800Z-260918T0300Z/
NORTHERN BOISE NATIONAL FOREST-
SOUTHERN BOISE/WESTERN SAWTOOTH NF, INCLUDING THE CAMAS PRAIRIE-
BURNS BLM-STEENS MOUNTAIN-NORTHWESTERN VALE BLM-BAKER VALLEY-
431 AM MDT THU SEP 17 2026 /331 AM PDT THU SEP 17 2026/
...RED FLAG WARNING IN EFFECT FROM NOON MDT /11 AM PDT/ TODAY TO
9 PM MDT /8 PM PDT/ THIS EVENING FOR LIGHTNING FOR NORTHERN BOISE
NATIONAL FOREST...SOUTHERN BOISE/WESTERN SAWTOOTH NF, INCLUDING
THE CAMAS PRAIRIE...BURNS BLM...STEENS MOUNTAIN...NORTHWESTERN
VALE BLM AND BAKER VALLEY...WHICH ARE FIRE WEATHER ZONES 403...
421...670...671...674 AND 675...
THE NATIONAL WEATHER SERVICE IN BOISE HAS ISSUED A RED FLAG
WARNING FOR LIGHTNING, WHICH IS IN EFFECT FROM NOON MDT /11 AM
PDT/ TODAY TO 9 PM MDT /8 PM PDT/ THIS EVENING. THE FIRE WEATHER
WATCH IS NO LONGER IN EFFECT.
* AFFECTED AREA...IN IDAHO, FIRE WEATHER ZONES 403 NORTHERN
BOISE NATIONAL FOREST, 421 SOUTHERN BOISE/WESTERN SAWTOOTH NF
AND INCLUDING THE CAMAS PRAIRIE. IN OREGON, FIRE WEATHER ZONES
670 BURNS BLM, 671 STEENS MOUNTAIN, 674 NORTHWESTERN VALE BLM
AND 675 BAKER VALLEY.
* TIMING...FROM NOON MDT /11 AM PDT/ TODAY TO 9 PM MDT /8 PM
PDT/ THIS EVENING.
* 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.
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