The National Weather Service has issued a Flood watch Wednesday evening through late Thursday night, for small creeks and streams along the lower elevations of the Powder, Shoshone,and Big Horn Basins.
Up to one and a half inches of rain is expected over the lower elevations of the Powder, Big Horn, and Shoshone Basins through Wednesday night. Excessive rainfall runoff will cause significant rises along small streams and creeks Wednesday evening through Thursday morning. Creeks and streams coming out of the foothills in the Powder, Big Horn, and Shoshone Basins are already running at high levels from recent snowmelt runoff. Much higher flows from the additional runoff will push many streams and creeks to flood levels.
The National Weather Service in Riverton has issued a Flood Watch for portions of central Wyoming, north central Wyoming, and northwest Wyoming. This includes the areas of Natrona County’s Lower Elevations, Southwest Big Horn Basin, Bighorn Mountains West, Northeast Johnson County, Southeast Big Horn Basin, and Southeast Johnson County, the Cody Foothills, and North Big Horn Basin.
Excessive rainfall runoff may cause significant rises along small streams and creeks Wednesday evening through Thursday morning. Creeks and streams coming out of the foothills in the Powder, Big Horn, and Shoshone Basins are already running at high levels from recent snowmelt runoff. Much higher flows from the additional rainfall runoff could push many streams and creeks to flood levels.
The National Weather Service says expect flooding of low lying areas along creeks and streams flowing from the foothills down to the lower elevations of the Big Horn, Powder, and Shoshone Basins.
NWS advises that citizens should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.