Bighorn Mountains Southeast Severe Watches & Warnings NOAA Weather Radio

Flash Flood Watch
Statement as of 8:54 AM MDT on May 24, 2015

... Flash Flood Watch now in effect through this evening...

The Flash Flood Watch is now in effect for

* a portion of north central Wyoming... including the following
areas... Bighorn Mountains southeast... northeast Johnson County
and southeast Johnson County.

* Through this evening

* saturated to near saturated soils from recent rainfall will
combine with areas of potential heavy rain across Johnson County
through this evening. The threat of flash flooding will be along
small streams and irrigation canals in and near the foothills of
the Bighorn Mountains. A strong Spring storm will produce
conditions favorable for prolonged heavy rain with rainfall
rates of an inch to an inch and a half an hour with total
rainfall of 2 to 4 inches possible.

* Flooding of roads at night pose a significant threat to
motorists. Do not attempt to drive through flood waters as the
Road may be washed out. Turn around... do not drown.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.

Record Report
Statement as of 1:34 am MDT on May 24, 2015

... Record daily maximum rainfall set at Riverton Saturday...

A moist and unstable weather system moved across Wyoming yesterday
and assisted in setting a new record daily rainfall of 0.63 of an
inch at the Riverton Regional Airport yesterday. This breaks the old
record of 0.21 that was set back in 2008. Note... records for this
site started in 1996.

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Cities Affected