The Cheyenne Office of the National Weather Service is warning about the possibility of flooding caused by heavy rain in southeast Wyoming starting on Friday. The agency posted this statement on its website on Tuesday evening:

''Widely scattered showers today will give way to a dry Wednesday. However, by Thursday night, we will have increasing chances for showers and thunderstorms. Heavy rain is expected by Friday and will be continuing through the weekend and possibly into the beginning of the week. With this in mind, area rivers and streams will be on the rise, and fast flows may be possible. Especially to the west where a significant, ripe snowpack remains above 9000 feet. A River Flood Warning has already been issued for the North Platte River at Saratoga. For those in the Laramie and Upper North Platte Basins, please be aware of your surroundings as the wet pattern continues. To the east, low lying areas may be covered in water at times.''