洪水警戒于9月20日美国山地时间上午4:32发布,有效期至9月20日美国山地时间下午6:00,由蒙大拿州比林斯国家气象局发布。
阵雨正在减弱并沿西部山麓逐渐停止，但今天预报区域的中部和东部地区仍将持续出现较强阵雨。发生洪涝灾害的风险……
Showers are turning light and tapering off along the western foothills, but healthier showers will continue over central and eastern portions of the forecast area today. The risk of flooding continues.
* WHAT...Flooding caused by excessive rainfall is possible, along with flash flooding over recent burn scars.
* WHERE...Southeast Montana and Sheridan County Wyoming.
* WHEN...Through this afternoon.
* IMPACTS...Excessive runoff may result in flooding of creeks and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. The risk of flooding will diminish late this afternoon and evening as showers taper off.
* ADDITIONAL DETAILS... - The heaviest rainfall is slowly shifting eastward to southeast Montana and northeast Wyoming. - The Elk and McGhee-Remington burn scars are particularly vulnerable to flash flooding and debris flows. Any other burn scars from this summer will have elevated flash flood potential as well. - http://www.weather.gov/safety/flood
Affected area: Musselshell; Treasure; Northern Rosebud; Custer; Fallon; Powder River; Carter; Northern Big Horn; Southern Rosebud; Southern Big Horn; Bighorn Canyon; Pryor/Northern Bighorn Mountains; Northeastern Yellowstone; Southwestern Yellowstone; Northeast Bighorn Mountains; Sheridan Foothills