Thunderstorms with locally heavy rainfall will bring the chance for flash flooding through this evening.
Seek shelter if possible.
“FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY EVENING... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of Montana, including the following counties, Big Horn, Carbon, Golden Valley, Musselshell, Park, Rosebud, Stillwater, Sweet Grass, Treasure, Wheatland and Yellowstone. Portions of north central Wyoming, including the following county, Sheridan. * WHEN...Through Friday evening. * IMPACTS...Excessive runoff may result in flooding of creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. Burn scars may experience flash flooding and debris flows. This includes the American Fork, Robertson Draw, Crater Ridge, BobCat, Peterson, Crooked Creek, and Richard Spring burn scars.” - NWS