Headline:
Flash Flood Warning issued September 18 at 2:45PM MDT until September 18 at 4:30PM MDT by NWS Pocatello ID
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
September 18, 2026 - 1:45pm
Expires:
September 18, 2026 - 3:30pm
Description:
At 245 PM MDT, Doppler radar indicated thunderstorms still capable of
producing heavy rain across the warned area, with rainfall rates of
0.25 to 0.5 inches in 1 hour. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Grouse.
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are low water crossings which are potentially
dangerous in heavy rain. Do not attempt to cross flooded roads. Find
an alternate route.
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.
Area Description:
Blaine, ID; Butte, ID; Custer, ID
Forcast Office:
NWS Pocatello ID
Sender:
w-nws.webmaster@noaa.gov