Moderate

* WHAT...Dangerous rip currents. * WHERE...The beaches of Volusia, Brevard, Indian River, Saint Lucie, and Martin Counties. * WHEN...Through late tonight. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs.

* WHAT...Visibility dropping below a quarter mile at times in dense fog. * WHERE...South Laramie Range and Foothills including the Interstate 80 Summit between Cheyenne and Laramie, and Central Laramie County from Cheyenne to the Colorado Border along I-25. * WHEN...Until 9 AM MDT Thursday. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Sustained southeast to south winds 20 to 30 mph, with gusts near 50 mph expected. * WHERE...White Pine, Southern Lander and Southern Eureka, and South Central Elko Counties. * WHEN...From 7 AM PDT Thursday morning until 8 PM PDT Thursday evening. * IMPACTS...Blowing dust will reduce visibilities at times. Travel will be difficult, particularly for high profile vehicles. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

If traveling through these areas this morning, be prepared for fog that could suddenly reduce visibilities to 1/4 mile or less. Expect the fog to dissipate by 9 am. Slow down and allow extra time to reach your destination.

At 145 AM EDT, Doppler radar was tracking a strong thunderstorm over St. Pete Beach, or near Fort Desoto Park, moving north at 20 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... Tampa, Clearwater, Largo, Pinellas Park, Seminole, Saint Petersburg, St. Petersburg, St. Pete Beach, Bay Pines, South Highpoint, Tierra Verde, Feather Sound, West And East Lealman, Gandy, Safety Harbor,

At 1251 AM EDT, Doppler radar was tracking a strong thunderstorm over Old Trap, or 7 miles east of Weeksville, moving 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... Southern Shores, Sanderling, Duck Coe Pier, Point Harbor, and Avalon Pier. If outdoors, consider seeking shelter inside a building.

At 926 PM PDT, Doppler radar was tracking a strong thunderstorm near Craigmont, or 17 miles west of Kamiah, moving north at 20 mph. HAZARD...Winds in excess of 30 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 outdoor objects is possible. Locations impacted include... Craigmont, Reubens, and Mohler. This includes U.S. Highway 95 in Idaho between mile markers 268 and 274, and near mile marker 285.

At 926 PM PDT, Doppler radar was tracking a strong thunderstorm 11 miles south of Paulina, or 42 miles south of Mitchell, moving west at 45 mph. HAZARD...Pea size hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vegetation is possible. This storm will remain over mainly rural areas of southeastern Crook County. If outdoors, consider seeking shelter inside a building. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe

At 1228 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Indiantown to near Elizabeth City State University to near Chapanoke. Movement was east at 35 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Strong thunderstorms will be near... Elizabeth City, Weeksville, Whitehall Shores, Indiantown, Nixonton, and Shiloh around 1235 AM EDT. Old Trap around 1240 AM EDT.