Moderate

Patchy dense fog has formed early this morning across portions of Washington and Bennington Counties, with visibilities at or below one quarter mile. If traveling early this morning, be prepared for changeable visibility. Leave extra space between you and the vehicle in front of you and avoid using high beams.

* WHAT...Dangerous rip currents. * WHERE...The beaches north of Cape Hatteras. * WHEN...From 8 AM EDT this morning through this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...The most likely time for strong rip currents to occur is a couple hours either side of low tide, which will occur around 8:00 AM Monday. Life-threatening rip currents. If caught in a rip current, remain calm. Swim in a direction following the shoreline. If tired,

At 314 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Stratford to near Chelsea to near Faulkton to 10 miles east of Stone Lake. Movement was southeast at 40 mph. HAZARD...Wind gusts up to 50 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... Redfield, Ipswich, Faulkton, Warner, Mina Lake Rec Area, Mellette,

At 244 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Hecla to near Westport to near Mina Lake Rec Area. Movement was southeast at 45 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... Aberdeen, Groton, Mina Lake Rec Area, Hecla, Frederick, Bath, Sunset

At 252 AM CDT, Doppler radar was tracking a strong thunderstorm over Fremont, or 7 miles southwest of Van Buren, moving northeast at 25 mph. HAZARD...Wind gusts up to 50 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... Van Buren and Fremont. If outdoors, consider seeking shelter inside a building.

At 152 AM MDT, Doppler radar was tracking a strong thunderstorm over Crescent Lake National Wildlife Refuge, or 22 miles north of Oshkosh, moving east at 30 mph. HAZARD...Wind gusts up to 50 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... Crescent Lake National Wildlife Refuge, Mumper, Rackett, Dogtown Flats, Deer Lake, Adams Flats, and Britton Lake.

* WHAT...South winds 15 to 25 mph with gusts up to 35 mph expected. * WHERE...In Arizona, Lake Mead - AZ side and Lake Mohave - AZ side. In Nevada, Lake Mead - NV side and Lake Mohave - NV side. * WHEN...From 10 AM PDT /10 AM MST/ this morning to 6 PM PDT /6 PM MST/ this evening. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Winds this strong can make driving difficult, especially for high-profile vehicles. Use extra caution.

At 231 AM CDT, a line of strong thunderstorms was located from 5 miles north of Spiritwood to 7 miles southeast of Ellendale, or from 12 miles northeast of Jamestown to 7 miles southeast of Ellendale, moving east at 35 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... Jamestown, Ellendale, Oakes, Lamoure, Marion, Ypsilanti, La Moure,

* WHAT...High risk of rip currents expected. * WHERE...In North Carolina, Eastern Currituck County. In Virginia, Virginia Beach. * WHEN...From 8 AM EDT this morning through this evening. * IMPACTS...Dangerous swimming and surfing conditions. Breaking waves of 3 to 5 ft can cause neck and back injuries. Remain out of the water to avoid hazardous swimming conditions.

At 240 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Mina Lake Rec Area to 6 miles southeast of Pembrook Colony to Norbeck. Movement was southeast at 35 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... Ipswich, Faulkton, Warner, Mina Lake Rec Area, Mellette, Northville,