Moderate

Areas of fog will slowly expand across parts of the South Carolina Lowcountry into Southeast Georgia through daybreak. The fog could become locally dense at times with visibilities dropping to 1/4 mile or less. The nature of the fog is such that visibilities will vary greatly over short distances with the risk for locally dense fog being the greatest near bodies of water and other low-lying areas such as marshes, swamps and large ditches. Motorists should remain

* WHAT...Sub-freezing temperatures as low as 30 degrees expected. * WHERE...Arco/Mud Lake Desert. * 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.

* WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Portions of central, north central, northwest, and west central Minnesota and northeast and southeast North Dakota. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation. Take steps now to protect tender plants from the cold.

At 356 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Long Mott to Edroy to 6 miles southeast of Rosita. Movement was southeast at 30 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Corpus Christi, Kingsville, Alice, Portland, Beeville, Robstown, Rockport, Sinton, Mathis, San Diego, Port Aransas, Taft, Refugio,

At 358 AM CDT, Doppler radar was tracking a strong thunderstorm near Freeport, moving east at 20 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Southeastern Lake Jackson, Freeport, Clute, Surfside Beach, Jones Creek, and Oyster Creek. If outdoors, consider seeking shelter inside a building.

At 332 AM CDT, Doppler radar was tracking a strong thunderstorm 7 miles southwest of Jones Creek, or 10 miles southwest of Freeport, moving east at 25 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Southeastern Lake Jackson, Freeport, Clute, Jones Creek, and Oyster Creek. If outdoors, consider seeking shelter inside a building.

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 4 to 6 ft expected. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...From 1 PM CDT this afternoon through Thursday afternoon. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. Remain out of the water to avoid dangerous swimming conditions

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 4 to 6 ft expected. * WHERE...Porter County. * WHEN...From 7 AM CDT this morning through Thursday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 4 to 6 ft expected. * WHERE...Lake County IN. * WHEN...From 7 AM CDT this morning through Thursday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.

* WHAT...Sub-freezing temperatures as low as 31. * WHERE...Jerauld, Beadle, Brookings, Kingsbury, and Sanborn Counties. * WHEN...Until 8 AM CDT 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.