Flood Warning
Issued by NWS Riverton, WY

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5
WGUS45 KRIW 221950

Flood Warning
National Weather Service Riverton WY
1250 PM MST WED FEB 22 2017

Big Horn-
1250 PM MST WED FEB 22 2017

The National Weather Service in Riverton has extended the

* Flood Warning for...
  An Ice Jam in...
  Central Big Horn County in central Wyoming...

* Until 130 PM MST Thursday

* At 1240 PM MST, Emergency Management in Greybull reported that
  there were open channels of flowing water on both sides of the Big
  Horn River.  There is also flowing water on top of the ice
  upstream of the highway bridge. The ice is thinning considerably
  along the main channel upstream and downstream of the highway
  bridge. Emergency Management also reported that the main channel
  is open with flowing water along the Big Horn River at Basin. Ice
  jams are occurring downstream between Basin and Greybull.

* The stage at the Big Horn River at Greybull at 12 pm this
  afternoon was around 91.0 feet. The river is expected to fluctuate
  around 91.0 feet through Thursday morning. Flood stage at the Big
  Horn River is at 92.0 feet.

* Much cooler temperatures are expected by Thursday and Friday which
  should decrease the number of ice jams along the Big Horn River
  from downstream of Basin to Greybull.


River ice is very unpredictable, and may move and jam with little
notice. Any ice jam can cause flooding, as the ice dams the river,
causing rapid increases in river levels in a short period of time.
People living near the Big Horn River should monitor the situation
closely and be ready to move to higher ground if flooding occurs.


LAT...LON 4456 10804 4439 10799 4439 10807 4455 10813



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.