Severe

* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Cheyenne CO, Kit Carson, and Yuma Counties. * WHEN...From midnight tonight to 9 AM MDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Drain in-ground sprinkler systems and cover above ground pipes. Take steps now to protect tender plants from the cold. Monitor the latest forecasts and warnings for updates.

* WHAT...Sub-freezing temperatures as low as 31 possible. * WHERE...In Kansas, Cheyenne KS, Sherman, Greeley, and Wallace Counties. In Nebraska, Dundy County. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold. Monitor the latest forecasts and warnings for updates.

At 1112 AM CDT, Doppler radar indicated thunderstorms producing heavy rain on Wadley, Greenbriar, Garfield, and Midland Drive, among other roadways. Between 1.5 and 2.5 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Flash flooding is already occurring. The public should refrain from driving flooded roads if possible. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Trained spotters reported.

* WHAT...Sub-freezing temperatures between 20 and 25 degrees expected. Localized temperatures as low as 15 degrees possible in the more sheltered valleys of Carbon and Albany counties. * WHERE...Portions of southeast Wyoming. * WHEN...From midnight tonight to 9 AM MDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold.

* WHAT...Sub-freezing temperatures between 25 and 30 degrees possible. * WHERE...Western Nebraska and far southeast Wyoming. * WHEN...From midnight tonight to 9 AM MDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold.

* WHAT...For the first Freeze Warning, sub-freezing temperatures as low as 24 expected. For the second Freeze Warning, sub-freezing temperatures as low as 27 expected. * WHERE...Central Yampa River Basin, Lower Yampa River Basin, Upper Yampa River Basin, San Juan River Basin, and Central Colorado River Basin. * WHEN...For the first Freeze Warning, from midnight tonight to 10 AM MDT Friday. For the second Freeze Warning, from midnight Friday Night to 10 AM MDT Saturday.

* WHAT...For the first Freeze Warning, sub-freezing temperatures as low as 24 expected. For the second Freeze Warning, sub-freezing temperatures as low as 27 expected. * WHERE...Central Yampa River Basin, Lower Yampa River Basin, Upper Yampa River Basin, San Juan River Basin, and Central Colorado River Basin. * WHEN...For the first Freeze Warning, from midnight tonight to 10 AM MDT Friday. For the second Freeze Warning, from midnight Friday Night to 10 AM MDT Saturday.

* WHAT...For the High Wind Warning, east to southeast winds 35 to 45 mph with gusts 55 to 75 mph expected. For the Wind Advisory, east to southeast winds 25 to 35 mph with gusts 50 to 60 mph expected. * WHERE...From central Pima County eastward excluding northern Graham and Greenlee Counties. * WHEN...For the High Wind Warning, from 11 PM this evening to 5 AM MST Saturday. For the Wind Advisory, from 5 AM to 2 PM MST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines.

* WHAT...Sub-freezing temperatures falling to 26 to 32 degrees, coldest over the plains. * WHERE...Front Range Urban Corridor and all of the eastern plains. * WHEN...From midnight tonight to 9 AM MDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.