FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT…
The National Weather Service in Pocatello has issued a
* Flood Watch for portions of eastern Idaho and southeast Idaho,
including the following areas, in eastern Idaho, Big Hole
Mountains. In southeast Idaho, Bear River Range, Blackfoot
Mountains, Caribou Range, Franklin/Eastern Oneida Region,
Marsh and Arbon Highlands, and Raft River Region.
* Through late tonight
* Heavy rainfall will continue into tonight across the region,
with 1 to 2 inches of rain expected. Locally higher amounts are
* Excessive rainfall will increase the risk of rock slides and mud slides
in steep, unstable terrain. Recent wildfire burn scars will be
especially prone to mud slides.
A Flood Watch means there is a potential for flooding based on
You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.
Significant Rainfall over Western Basins and Valleys across
Western Wyoming Today through Sunday Morning.
A strong fall storm system will result in periods of rainfall and
even a few thunderstorms today and Sunday. There is the potential
for precipitation to move over the same locations for a
considerable amount of time. Snow levels will generally be above
8500 over the north, and 9500 to even 10000 feet over the southern
parts of western Wyoming.
…FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY MORNING FOR PORTIONS
OF WESTERN WYOMING BELOW 8500 FEET…
The National Weather Service in Riverton has issued a
* Flash Flood Watch for Jackson Hole, Star Valley, Upper Green
River Basin Foothills, and elevations below 8500 feet in the
Salt River and Wyoming Ranges.
* Today through Sunday morning.
* Rainfall amounts of 0.75 to 1.25 are likely from a line
extending from 30 miles south of Afton to Pinedale, northward to
Moose. Isolated higher rainfall amounts to around 2 inches is
possible. The heaviest rainfall will occur today and tonight.
* The greatest hazard will be rock and mud slides in steeply
sloped canyons such as Hoback and Snake River canyons, as well
as recent wildfire burn scars including the Roosevelt burn scar
in Sublette County.
Excessive rainfall could cause mud slides near steep terrain with
little or no warning. The mud slide can consist of rock, mud,
vegetation and other loose materials.