Moderate

* WHAT...Sub-freezing temperatures as low as 32 expected. * WHERE...Jerauld, Beadle, Brookings, Kingsbury, and Sanborn Counties. * WHEN...From 1 AM to 8 AM CDT Wednesday. * 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 as low as 25 degrees. More populated areas will be around to 28 to 32 degrees. * WHERE...Arco/Mud Lake Desert, Lower Snake River Plain, and Upper Snake River Plain. * 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.

At 203 AM CDT, Doppler radar indicated strong thunderstorms along a line extending from 3 miles south of Shidler to 8 miles northeast of Sooner Lake. Movement was east at 30 mph. HAZARD...Wind gusts up to 50 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations in or near the path include... Pawhuska... Fairfax...

At 211 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 3 miles northwest of Arapaho to 7 miles northeast of Retrop. Movement was east at 20 mph. HAZARD...Wind gusts of 40 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Clinton, Burns Flat, Arapaho, Dill City, Bessie, Foss, and Stafford.

* WHAT...Dangerous rip currents expected. * WHERE...Walton, Bay, Gulf, and Franklin County Beaches. * WHEN...From 8 AM EDT /7 AM CDT/ this morning through this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.

* WHAT...For the first Freeze Warning, sub-freezing temperatures as low as 20 expected. For the second Freeze Warning, sub-freezing temperatures as low as 22 expected. * WHERE...Central Yampa River Basin and Lower Yampa River Basin. * WHEN...For the first Freeze Warning, until 10 AM MDT this morning. For the second Freeze Warning, from 1 AM to 9 AM MDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...For the first Freeze Warning, sub-freezing temperatures as low as 20 expected. For the second Freeze Warning, sub-freezing temperatures as low as 22 expected. * WHERE...Central Yampa River Basin and Lower Yampa River Basin. * WHEN...For the first Freeze Warning, until 10 AM MDT this morning. For the second Freeze Warning, from 1 AM to 9 AM MDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Sub-freezing temperatures as low as 25. * WHERE...Eastern Uinta Basin. * WHEN...Until 10 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.

At 146 AM CDT, Doppler radar was tracking a strong thunderstorm near New Philadelphia, or 14 miles northwest of Lewistown, moving east at 55 mph. HAZARD...Wind gusts of 50 to 55 mph and penny 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... Lewistown, Cuba, Avon, Fairview, Bernadotte, Smithfield, Marietta, Ellisville, Fiatt, and Middle Grove.

At 146 AM CDT, Doppler radar was tracking a strong thunderstorm 8 miles southwest of Tilden, moving northeast at 10 mph. HAZARD...Wind gusts of 50 to 55 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... Choke Canyon, Tilden, Calliham, Crowther, and Cross. If outdoors, consider seeking shelter inside a building.