Severe

* WHAT...Sub-freezing temperatures around 30. * WHERE...In Colorado, Cheyenne CO, Kit Carson, and Yuma Counties. In Kansas, Cheyenne KS, Sherman, Greeley, and Wallace Counties. In Nebraska, Dundy County. * 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. Take steps now to protect tender plants from the cold. Monitor the latest forecasts and warnings for updates.

FFWOUN The National Weather Service in Norman has issued a * Flash Flood Warning for... Central Pontotoc County in east central Oklahoma... * Until 300 PM CDT. * At 1159 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. SOURCE...Radar indicated.

* WHAT...Sub-freezing temperatures as low as 24 to 28 possible. * WHERE...Portions of central, north central, and south central Wyoming. * WHEN...From midnight Thursday night through 9 AM MDT 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. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

...RED FLAG WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PDT FRIDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL AND NORTHERN CALIFORNIA... The National Weather Service in Sacramento CA has issued a Red Flag Warning. * AFFECTED AREA...Portions of the Sierra Nevada and adjacent Foothills. * TIMING...From midnight tonight to 10 AM PDT Friday. * WINDS...Northeast to east winds 15 to 25 mph with gusts 25 to 45 mph. * RELATIVE HUMIDITY...Daytime humidity 10 to 25% with single digits

* AFFECTED AREA...Fire weather zone 596 Tehachapi Area. Fire weather zone 597 Fort Tejon. * WIND...STRONG EAST WINDS EXPECTED. A 30 TO 50 PERCENT PROBABILITY OF GUSTS EXCEEDING 40 MPH ON THURSDAY. A 60 TO 80 PERCENT PROBABILITY OF GUSTS EXCEEDING 40 MPH ON FRIDAY. * HUMIDITY...MINIMUM RELATIVE HUMIDITY BETWEEN 15-25 PERCENT BOTH DAYS. * THUNDERSTORMS...NO THUNDERSTORM THREAT. * HIGHEST THREAT...IS LOCATED FROM PINE MOUNTAIN CLUB THROUGH FRAZIER PARK AND TO FORT TEJON.

...The National Weather Service in Norman has issued a Flood Warning for the following rivers in Oklahoma... Washita River near Clinton affecting Washita and Custer Counties. For the Washita River...including Clinton...Minor flooding is forecast. Additional information is available at www.weather.gov. The next statement will be issued this evening at 1145 PM CDT. * WHAT...Minor flooding is forecast. * WHERE...Washita River near Clinton. * WHEN...From this afternoon to Thursday morning. * IMPACTS...At 19.0 feet, Approximately one thousand acres of rural

* 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.

* 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

At 1140 AM CDT, the public reported thunderstorms producing heavy rain in Elk City, Clinton, Custer City, Cordell. Between 3 and 10 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Public reported. 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... Cleveland County in central Oklahoma... Southwestern Lincoln County in central Oklahoma... Southeastern McClain County in central Oklahoma... Southeastern Oklahoma County in central Oklahoma... Pottawatomie County in central Oklahoma... North Central Garvin County in southern Oklahoma... * Until 215 PM CDT. * At 1122 AM CDT, Doppler radar indicated thunderstorms producing