Moderate

* WHAT...Strong longshore currents in the surf zone. * WHERE...Ocracoke Island and Core Banks beaches. * WHEN...From 8 AM EDT this morning through this evening. * IMPACTS...Strong longshore currents will create dangerous swimming conditions. * ADDITIONAL DETAILS...Strong longshore currents will create dangerous swimming conditions. Strong longshore currents can sweep swimmers and surfers into rip currents, piers, jetties and other hazardous areas. In many cases, the longshore current is strong enough to prevent swimmers

At 206 AM CDT, a strong thunderstorm was located 12 miles southwest of Bonetrail, or 19 miles northwest of Williston, moving northeast at 35 mph. HAZARD...Wind gusts up to 40 mph and nickel 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... Bonetrail and Blacktail Lake. This storm may intensify, so be certain to monitor local radio

At 110 AM MDT, Doppler radar was tracking strong thunderstorms along a line extending from near Chadron to 7 miles northeast of Box Butte Reservoir. Movement was northeast at 40 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... Rushville, Hay Springs, White Clay, Clinton, Intersection of Highway

* WHAT...Minor Coastal Flooding Possible. Water levels 4 to 6 feet above the normal high tide line possible with the Wednesday and Thursday high tides. * WHERE...Golovin. * WHEN...From late Tuesday night through Friday afternoon. * IMPACTS...Some beach erosion may occur. Water may reach up to the lowest lying buildings. * ADDITIONAL DETAILS...Several days of gusty southwesterly winds are expected late Wednesday through Friday. Rain totals between 1 to 2 inches are possible. Precautions should be taken to protect property.

* WHAT...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. * WHERE...In Puerto Rico, Culebra and Vieques. In the U.S. Virgin Islands, St Croix and St. Thomas, St. John, and Adjacent Islands. * WHEN...From 10 AM this morning to 5 PM AST this afternoon. * IMPACTS...High temperatures or elevated heat indices can worsen symptoms in people with chronic conditions. They can also increase

* WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Door, Kewaunee and Manitowoc Counties. * WHEN...From Tuesday morning through Wednesday morning. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Rock Island State Beach, Baileys Harbor beaches and Whitefish

* WHAT...Heat index values up to 109 expected. * WHERE...Portions of Big Bend and Panhandle Florida and southwest Georgia. * WHEN...From noon EDT /11 AM CDT/ today to 6 PM EDT /5 PM CDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose

At 225 AM EDT/125 AM CDT/, Doppler radar was tracking strong thunderstorms along a line extending from 13 miles east of Stonemill Creek to 12 miles south of St George Island. Movement was west 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... Eastpoint, Apalachicola, St George Island, Stonemill Creek, White City, Orange, Franklin, Wewahitchka, Honeyville, Chipola Cutoff,

At 1228 AM MDT, Doppler radar was tracking a line of strong thunderstorms extending from near northern Wind Cave National Park to 5 miles south of Prairie Winds Casino, or extending from 11 miles southeast of Custer to 25 miles west of Pine Ridge, moving northeast at 35 mph. HAZARD...Wind gusts of 50 to 55 mph and half inch 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.

* WHAT...Heat index values of 105 to 110 expected with overnight low in the mid to upper 70s. * WHERE...Portions of central, east central, northern, northwest, southeast, southern, and southwest Oklahoma and northern Texas. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.