Boysen State Park
Flash Flood Warning issued September 19 at 7:29PM MDT until September 19 at 9:30PM MDT by NWS Riverton WY
At 729 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. 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, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Mainly rural areas of Southern Fremont County near Lyons Valley. This includes the following streams and drainages... Little Popo Agie River, Grant Young Ditch, Monument Draw, North Fork Ballenger Draw, Popo Agie River and Government Draw.
Flood Watch issued September 19 at 11:54AM MDT until September 20 at 6:00PM MDT by NWS Riverton WY
* WHAT...Flash flooding caused by moderate to heavy rainfall is possible, especially in terrain and poor drainage areas. * WHERE...Portions of central, north central, and northwest Wyoming, including the following areas, in central Wyoming, Owl Creek and Bridger Mountains. In north central Wyoming, Bighorn Mountains Southeast, Bighorn Mountains West, Northeast Johnson County and Southeast Johnson County. In northwest Wyoming, Absaroka Mountains, Cody Foothills and Yellowstone National Park. * WHEN...Through Sunday afternoon. * IMPACTS...Excessive rainfall may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas and around steep terrain. * ADDITIONAL DETAILS... - A slow moving weather system will move across Wyoming today and Sunday and bring rounds of showers and thunderstorms to the region, especially northern Wyoming. Any shower or thunderstorm could produce moderate to heavy rainfall across the Watch Area. - http://www.weather.gov/safety/flood
Flood Advisory issued September 19 at 7:25PM MDT until September 19 at 9:15PM MDT by NWS Riverton WY
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...South Central Fremont County in central Wyoming on the Weiser Knoll Burn Scar... * WHEN...Until 915 PM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 724 PM MDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing in the advisory area. Between 1 and 1.2 inches of rain have fallen. Light rain will continue for the next couple of hours. - This includes the following streams and drainages... Dry Twin Creek, West Fork Cottonwood Creek, Critnan Creek, Red Canyon Creek, Beaver Creek, North Fork Hall Creek, Stambaugh Creek, East Fork Cottonwood Creek, Twin Creek and Tweed Creek. - Some locations that will experience flooding include... Mainly rural areas of South Central Fremont County near the Weiser Knoll Burn Scar. - http://www.weather.gov/safety/flood
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