922
WGUS55 KPIH 131925
FFWPIH
IDC051-065-132100-
/O.EXT.KPIH.FF.W.0005.000000T0000Z-260813T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
125 PM MDT THU AUG 13 2026
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
THE BIG ROCK BURN SCAR IN...
SOUTHEASTERN JEFFERSON COUNTY IN SOUTHEASTERN IDAHO...
SOUTH CENTRAL MADISON COUNTY IN SOUTHEASTERN IDAHO...
* UNTIL 300 PM MDT.
* AT 125 PM MDT, EMERGENCY MANAGEMENT REPORTED THUNDERSTORMS
PRODUCING HEAVY RAIN OVER THE BIG ROCK BURN SCAR. BETWEEN 0.25 AND
0.5 INCHES OF RAIN HAVE FALLEN. ADDITIONAL RAINFALL AMOUNTS OF 0.1
TO 0.2 INCHES ARE POSSIBLE IN THE WARNED AREA. FLASH FLOODING IS
ALREADY OCCURRING. SNAKE RIVER RD. AND HEISE ROAD HAVE WATER AND
DEBRIS ON THE ROADWAY.
EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN DEBRIS FLOW
MOVING THROUGH THE BIG ROCK BURN SCAR. THE DEBRIS FLOW CAN CONSIST OF
ROCK, MUD, VEGETATION AND OTHER LOOSE MATERIALS.
HAZARD...LIFE THREATENING FLASH FLOODING. THUNDERSTORMS PRODUCING
FLASH FLOODING IN AND AROUND THE BIG ROCK BURN SCAR.
SOURCE...EMERGENCY MANAGEMENT REPORTED.
IMPACT...LIFE THREATENING FLASH FLOODING OF AREAS IN AND AROUND THE
BIG ROCK BURN SCAR.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
HEISE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A LIFE THREATENING SITUATION. HEAVY RAINFALL WILL CAUSE
EXTENSIVE AND SEVERE FLASH FLOODING OF CREEKS...STREAMS...AND DITCHES
IN THE BIG ROCK BURN SCAR. SEVERE DEBRIS FLOWS CAN ALSO BE
ANTICIPATED ACROSS ROADS. ROADS AND DRIVEWAYS MAY BE WASHED AWAY IN
PLACES. IF YOU ENCOUNTER FLOOD WATERS...CLIMB TO SAFETY.
BE AWARE OF YOUR SURROUNDINGS AND DO NOT DRIVE ON FLOODED ROADS.
FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS, RIVERS, OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.
LAT...LON 4366 11172 4367 11173 4368 11172 4366 11170
4366 11167 4367 11165 4365 11163 4364 11164
4364 11165 4363 11166 4363 11169 4364 11169
4365 11171
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
MCKAUGHAN
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