Headline:
Flash Flood Warning issued September 17 at 10:25PM MDT until September 18 at 2:30AM MDT by NWS Pocatello ID
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
September 17, 2026 - 9:25pm
Expires:
September 18, 2026 - 1:30am
Description:
FFWPIH
The National Weather Service in Pocatello has issued a
* Flash Flood Warning for...
The Big Rock burn scar in...
Southeastern Jefferson County in southeastern Idaho...
South Central Madison County in southeastern Idaho...
* Until 230 AM MDT.
* At 1025 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain over the Big Rock Burn Scar. Flash flooding is ongoing
or expected to begin shortly. 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...Radar indicated.
IMPACT...Life threatening flash flooding of areas in and around the
Big Rock Burn Scar.
* Some locations that will experience flash flooding include...
Heise.
Instruction:
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.
Area Description:
Jefferson, ID; Madison, ID
Forcast Office:
NWS Pocatello ID
Sender:
w-nws.webmaster@noaa.gov