Isolated to scattered thunderstorms are expected this afternoon and into tonight especially over the west and northwest Wyoming. Some of the stronger storms could produce hail, strong winds and torrential rainfall. The torrential rainfall could cause localized flash flooding or debris flows and Flash Flood Watch is in effect for much of western Wyoming from Wednesday afternoon through Thursday evening.

Rock Springs forecast:

Today: Scattered showers and thunderstorms, mainly between 4pm and 5pm. Some of the storms could produce gusty winds. Partly sunny, with a high near 78. Southwest wind 6 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Tonight: Isolated showers and thunderstorms before 10pm. Some of the storms could produce gusty winds. Partly cloudy, with a low around 53. West southwest wind 7 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Thursday: Mostly sunny, with a high near 80. Southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.

Thursday Night: Partly cloudy, with a low around 54. Breezy, with a west northwest wind 17 to 22 mph becoming light west. Winds could gust as high as 31 mph.

Friday: Mostly sunny, with a high near 77. Southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.

Friday Night: Partly cloudy, with a low around 51. Northwest wind 8 to 17 mph, with gusts as high as 24 mph.

Saturday: Mostly sunny, with a high near 81. Northwest wind 5 to 8 mph becoming calm.

Saturday Night: Partly cloudy, with a low around 55.

Sunday: Sunny, with a high near 85.

Sunday Night: Mostly clear, with a low around 55.

Monday: Sunny, with a high near 83. Breezy.

Monday Night: Mostly clear, with a low around 51. Breezy.

Tuesday: Sunny, with a high near 80.