Moderate

At 913 AM CDT, Doppler radar was tracking a strong thunderstorm over Reelfoot Lake State Park, moving 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... Union City, Reelfoot Lake State Park, Tiptonville, Newbern, Ridgely, Troy, Obion, Clayton, Cloverdale, Trimble, Hornbeak, Woodland Mills, Samburg, Cat Corner, Locust Grove, Maxey, Elbridge, Jacksonville,

At 920 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from 10 miles northwest of Murray to 11 miles south of Cayce, or extending from 10 miles northwest of Murray to 13 miles southeast of Hickman, moving southeast at 40 mph. HAZARD...Wind gusts up to 40 mph and pea 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...

* 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 municipalities. In Virgin Islands, St Croix and St. Thomas, St. John, and Adjacent Islands. * WHEN...Until 5 PM AST this afternoon. * 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.

* WHAT...Visibility less than 1 mile, at times down to 1/4 mile, in dense fog. * WHERE...City and Borough of Wrangell, Petersburg Borough, and Western Kupreanof Island and Kuiu Island. * WHEN...Until 10 AM AKDT this morning. * IMPACTS...Low visibility could make travel conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Dangerous rip currents and breaking waves due to elevated surf expected. * WHERE...Catalina and Santa Barbara Islands, Ventura County Beaches, Malibu Coast and Los Angeles County Beaches. * WHEN...From late tonight through Thursday evening. * IMPACTS...There is an increased risk of ocean drowning. Rip currents can pull swimmers and surfers out to sea. Waves can wash people off beaches and rocks, and capsize small boats nearshore. * ADDITIONAL DETAILS...High tides around 6 feet will occur in

* WHAT...Hot daytime conditions with high temperatures between 95 and 105 common. * WHERE...San Luis Obispo County Interior Valleys, San Luis Obispo County Mountains, Santa Lucia Mountains, and Southern Salinas Valley. * WHEN...Until 8 PM PDT Friday. * IMPACTS...There is a high risk for dangerous heat illness for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors. Drink plenty of fluids, stay in an air-conditioned room, stay out of

* WHAT...Hot daytime conditions with high temperatures between 90 and 100 common. * WHERE...San Luis Obispo County Inland Central Coast, Santa Barbara County Inland Central Coast, and Santa Ynez Valley. * WHEN...From 10 AM this morning to 8 PM PDT Thursday. * IMPACTS...There is a high risk for dangerous heat illness for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors. Drink plenty of fluids, stay in an air-conditioned room, stay out of

At 756 AM CDT, Doppler radar was tracking a strong thunderstorm 7 miles north of Williamsville, or 6 miles southwest of Greenville, moving southeast at 25 mph. HAZARD...Wind gusts up to 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... Greenville, Lake Wappapello State Park, Williamsville, Shook and Wappapello.

At 842 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Muskegon Heights to 6 miles northwest of Allendale. Movement was east at 25 mph. HAZARD...Winds in excess of 40 mph and pea 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... Grand Haven... Walker... Muskegon Heights...

* WHAT...Visibility one-quarter mile or less in dense fog. * WHERE...Greenwood County. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.