Severe

* WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Upper Rio Grande Valley. * WHEN...From 2 AM to 9 AM MDT Thursday. * 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.

At 1232 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...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses.

FFWOUN The National Weather Service in Norman has issued a * Flash Flood Warning for... Southeastern Custer County in western Oklahoma... Northern Washita County in western Oklahoma... * Until 330 AM CDT. * At 1234 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts up to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

At 110 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 2.5 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. 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.

At 113 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. 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... Southwestern Blaine County in northwestern Oklahoma... Northwestern Caddo County in southwestern Oklahoma... * Until 430 AM CDT. * At 117 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts up to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

At 117 AM CDT, a severe thunderstorm was located near Crane, moving northeast at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Crane, King Mountain, Cordona Lake, and Crane County Airport. For your protection move to an interior room on the lowest floor of a building.

* WHAT...Thursday morning low temperatures in the mid 20s to lower 30s. * WHERE...The San Luis Valley. * WHEN...From midnight tonight to 8 AM MDT Thursday. * IMPACTS...Freezing temperatures could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...This could be a killing freeze which could bring an end to the growing season across the San Luis Valley. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to

* WHAT...Sub-freezing temperatures in the upper 20 to lower 30s possible. * WHERE...El Paso and Kiowa counties. * WHEN...From late Thursday night through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...The coldest readings are most likely to occur across northern El Paso county. Take steps now to protect tender plants from the cold.

FFWOUN The National Weather Service in Norman has issued a * Flash Flood Warning for... Northwestern Harmon County in southwestern Oklahoma... Southwestern Beckham County in western Oklahoma... * Until 230 AM CDT. * At 1123 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts up to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.