Flood Potential Outlook
Issued by NWS Riverton, WY

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FGUS75 KRIW 241601
Hydrologic Outlook
National Weather Service Riverton WY
1001 AM MDT Thu May 24 2018

...Increased snowmelt at the 9,000 to 10,000 foot elevation
through Saturday followed by widespread rain showers on Sunday...

...Highest flows of the runoff season expected Monday and
Tuesday of next week...

Afternoon mountain temperatures at the 9,000 foot elevation are
expected to warm to into the lower to middle 60s Friday and Saturday.
Morning low temperatures near 9,000 feet are forecasted to be at
or above the frost temperature of 37 degrees Friday through Sunday.

Increased snowmelt at the 9,000 to 10,000 foot elevation through
Saturday will be followed by widespread mountain rain showers on Sunday.
At this time, precipitation totals look to the highest across the Big
Horn Mountains.

The combination of rain and snowmelt runoff will further
increase already high creek and river levels. The Wind River and the
North/South Forks of the Shoshone River should see the highest flows of the
runoff season by Monday and Tuesday of next week. Tributary streams that
feed into the Big Horn and Snake Rivers may also see the highest flows
of the season by early next week.

During active snowmelt runoff, mountain creeks and streams are
at their highest levels during the late afternoon/early evening
hours.  Crossing creeks and streams during that time is highly

Graphical forecasts are available at:
Visit weather.gov/riverton and select the rivers & lakes tab for
graphical forecasts and additional information.


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