Severe

* 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.

...CRITICAL FIRE WEATHER CONDITIONS POSSIBLE SATURDAY... .A strong cold front will quickly move through the area Friday afternoon. The front will be mostly if not completely dry as it moves through the area. Quickly after it moves into the Gulf much drier air will surge in behind it. In addition cooler air will move in along with strong northerly winds. On Saturday sunny skies and winds in the first 1500-3000 ft will be out of the same direction sllowing for efficient mixing. This will help to bring

At 1058 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 2 to 3 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

FFWOUN The National Weather Service in Norman has issued a * Flash Flood Warning for... Western Foard County in northern Texas... Southwestern Hardeman County in northern Texas... * Until 145 PM CDT. * At 1039 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms.

...HIGH RISK FOR EXTREME FIRE BEHAVIOR WITH ANY NEW FIRE STARTS THURSDAY THROUGH SATURDAY DUE TO MODERATE TO LOCALLY STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY... .No changes from previous statement. Moderate to locally strong Santa Ana winds will quickly develop on Thursday, peak Thursday afternoon through Friday afternoon, then slowly weaken through the weekend. Meanwhile, dry air will settle over the region and dry out any effects of the recent rains. Red Flag Warnings are in