DENVER -- The National Weather Service issued a flash flood warning for several counties Thursday evening.
The flash flood warning encompassed Arapahoe, Douglas and Elbert counties until 8:15 p.m. Thursday.
A flash flood watch for many Colorado counties has been in effect through Friday as heavy storms will bring heavy rain to the Denver metro area and the Eastern Plains.
The flash flood watch covers most of the state, with severe thunderstorms with hail possible beginning about noon Thursday and continuing into Friday morning.
The storm is a combination of a cold front moving in from the north and moisture streaming from the south from the remnants of Hurricane Blanca.
Temperatures will be cool, with highs in the low to mid-70s on Thursday and in the low to mid-60s on Friday.
Because of the threat of more rain and the South Platte River running high, Denver Water said Thursday it is closing Waterton Canyon until the high flows subside.
“We were hopeful that the highest flows were past us, but Mother Nature had other plans,” said Brandon Ransom, Denver Water’s manager of recreation. “As soon as conditions are safe and the trail is ready for bikers and hikers again, we’ll get the gates back open for recreationists to enjoy.”
Flash flood watch effective until noon Friday:
- Elbert/Central and East Douglas Counties above 6,000 Feet
- Jefferson and West Douglas Counties above 6,000 Feet
- Gilpin/Clear Creek/Northeast Park Counties
- Larimer County below 6,000 Feet
- Northwest Weld County, Larimer and Boulder Counties between 6,000 and 9,000 Feet
- Morgan County
- North Douglas County below 6,000 feet
- Denver/West Adams and Arapahoe Counties below 6,000 feet
- East Broomfield County, North and Northeast Elbert County below 6,000 feet
- North Lincoln County, Northeast Weld County, Southeast Elbert County below 6,000 feet
- South Lincoln County
- Washington County
Flash flood watch effective until 6 a.m. Friday
- Cheyenne County
- Kit Carson County
- Yuma County in Colorado
Flash flood watch through 7 p.m. Friday:
- Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below 7,400 feet
- Crowley County
- Eastern Las Animas County
- La Junta Vicinity/Otero County
- Lamar Vicinity/Prowers County
- Las Animas Vicinity/Bent County
- Pueblo and Vicinity/Pueblo County below 6,300 feet
- Southern Sangre De Cristo Mountains between 7,500 and 11,000 feet
- Springfield Vicinity/Baca County
- Teller County/Rampart Range above 7500 feet/Pikes Peak between 7,500 And 11,000 feet
- Walsenburg Vicinity/Upper Huerfano River Basin Below 7,500 feet
- Western Kiowa County
For interactive storm coverage, go to Pinpoint Weather and watch the interactive radar.