634
WGUS55 KBOI 262313
FFWBOI
IDC073-270215-
/O.NEW.KBOI.FF.W.0006.250826T2313Z-250827T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BOISE ID
513 PM MDT TUE AUG 26 2025
THE NATIONAL WEATHER SERVICE IN BOISE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN OWYHEE COUNTY IN SOUTHWESTERN IDAHO...
* UNTIL 815 PM MDT.
* AT 513 PM MDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. THE EXPECTED RAINFALL RATE IS 2
TO 2.5 INCHES IN 1 HOUR AND 30 MINUTES. ADDITIONAL RAINFALL
AMOUNTS OF 0.5 TO 1 INCH ARE POSSIBLE IN THE WARNED AREA. FLASH
FLOODING IS ONGOING OR EXPECTED TO BEGIN SHORTLY.
HAZARD...FLASH FLOODING CAUSED BY THUNDERSTORMS.
SOURCE...RADAR.
IMPACT...FLASH FLOODING OF SMALL CREEKS AND STREAMS, AS WELL AS
OTHER POOR DRAINAGE AND LOW-LYING AREAS.
* IDAHO STATE HIGHWAY 51 BETWEEN 3 AND 12 MILES SOUTH AND SOUTHWEST
OF GRASMERE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN. DRY
WASHES, STREAMS, AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A
MATTER OF MINUTES, EVEN FROM DISTANT RAINFALL.
LAT...LON 4230 11592 4229 11597 4230 11597 4233 11593
4236 11588 4234 11588
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...2-2.5 INCHES IN 1 HOUR AND 30 MINUTES
LC
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