Moderate

* WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...In Oklahoma, Cimarron County. In Texas, Dallam County. * WHEN...From 1 AM to 9 AM CDT 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 858 AM CDT, Doppler radar was tracking a strong thunderstorm near Yates Crossing, moving east at 55 mph. HAZARD...Wind gusts of 50 to 55 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Mason, Art, Loyal Valley, Yates Crossing, Saline, Segovia, Streeter, Hedwigs Hill, Hilda, Long Mountain, Grit, London, Erna, Us-

At 859 AM CDT, Doppler radar was tracking a strong thunderstorm over Castell, moving east at 55 mph. HAZARD...Wind gusts of 50 to 55 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Castell, Art, Hedwigs Hill, Loyal Valley, and Hilda. If outdoors, consider seeking shelter inside a building. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for

At 828 AM CDT, Doppler radar was tracking a strong thunderstorm near The Intersection Of Ranch Road 2083 And Highway 405, or 21 miles northeast of Terrell County Gas Plant, moving northeast at 50 mph. HAZARD...Wind gusts up to 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Ozona and The Intersection Of Ranch Road 2083 And Highway 405.

As a front which has brought snow to the North Slope will continue to do so Wednesday and Thursday. Remaining snow totals of around 2 to 3 inches are expected across the Central Arctic Coast, especially between Utqiagvik and Nuiqsut, and the Central Arctic Plains. The highest snowfall rates are likely to occur through Wednesday afternoon. Along the Dalton Highway, 2 to 3 inches of snow remaining will be possible. Gusty north to northeast winds

* WHAT...Sub-freezing temperatures between 30-32 degrees expected. * WHERE...Cache Valley/Utah Portion and Western Uinta Basin. * WHEN...Until 9 AM MDT this 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. Drain in-ground sprinkler systems and cover above ground pipes.

At 817 AM CDT, Doppler radar was tracking a strong thunderstorm near New Market, or 11 miles east of Moores Mill, moving east at 50 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Northern Huntsville, Bridgeport, Moores Mill, Meridianville, Stevenson, Skyline, Alabama A And M University, New Market, Anderson, and Hytop. If outdoors, consider seeking shelter inside a building.

At 852 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles south of Pikeville to Walden. Movement was east at 50 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Chattanooga, Cleveland, Athens, Dayton, Decatur, Soddy-Daisy, Signal Mountain, Walden, Lakesite, and Charleston.

At 736 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from Ardmore to near Courtland to near Hackleburg. Movement was east at 40 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Huntsville, Decatur, Madison, Athens, Hartselle, Russellville, Moulton, Moores Mill, Meridianville, and Redstone Arsenal. If outdoors, consider seeking shelter inside a building.

Overnight cloud cover limiting cooling overnight and temperatures have risen into the mid 30s this morning. The warning will be allowed to expire at the top of the hour.