Moderate

At 107 PM EDT, Doppler radar was tracking a strong thunderstorm over Palm Bay, moving north 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... Palm Bay, Melbourne, Malabar, Camp Holly Fish Camp, and Merritt Island. If outdoors, consider seeking shelter inside a building.

At 1257 PM EDT/1157 AM CDT/, Doppler radar was tracking a strong thunderstorm near White City, or 11 miles northeast of Port St. Joe, 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... Eastpoint, Apalachicola, Port St. Joe, Mexico Beach, Stonemill Creek, White City, Wewahitchka, Honeyville, Chipola Cutoff, Eleven Mile,

* WHAT...High temperatures up to 103 degrees expected. * WHERE...San Joaquin Valley and Sierra Foothills. * WHEN...From 11 AM Saturday to 11 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Moderate to major risk of heat-related illnesses for much of the population, especially those without effective cooling or hydration. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerous rip currents. * WHERE...In Alabama, Baldwin Coastal County. In Florida, Escambia Coastal, Santa Rosa Coastal and Okaloosa Coastal Counties. * WHEN...Through Monday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.

* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, minor coastal flooding expected. * WHERE...Mobile Coastal County. * WHEN...For the High Rip Current Risk, through Monday evening. For the Coastal Flood Advisory, from midnight tonight to 8 AM CDT Saturday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. Rip currents can sweep even the best swimmers away from shore into deeper water.

* WHAT...Dangerous rip currents. * WHERE...Coastal Palm Beach County, Coastal Broward County and Coastal Miami Dade County. * WHEN...Through Saturday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.

* WHAT...Visibilities down to 1/4 mile in dense fog. * WHERE...Petersburg Borough. * 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.

Periods of light snow continue through Friday. Additional snowfall accumulations are expected to be less than an inch. Gusty southwesterly winds east of Deadhorse may lead to brief periods of reduced visibility due to blowing snow. Conditions improve through Friday.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Clarendon and Southeastern Orangeburg Counties. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous, especially on I-95 over Lake Marion. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Fog is lifting and visibilities should improve above one-quarter mile by 10 AM.