Moderate

* WHAT...Heat index values up to 107. * WHERE...Cullman and DeKalb Counties. * WHEN...Until 8 PM CDT Saturday. * 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat

* WHAT...Heat index values up to 109. * WHERE...In Alabama, Limestone, Madison, Morgan, Colbert, Franklin AL, Lauderdale, and Lawrence Counties. In Tennessee, Lincoln and Moore Counties. * WHEN...Until 8 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

* WHAT...Heat index values up to 107. * WHERE...In Alabama, Jackson and Marshall Counties. In Tennessee, Franklin TN County. * WHEN...Until 8 PM CDT Saturday. * 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in

* 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...Southwest winds 15 to 25 mph with gusts of 30 to 40 mph expected. * WHERE...Portions of the Central Interior, particularly areas around Lake Minchumina. * WHEN...Until 10 PM AKDT Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

* WHAT...Southwest winds 15 to 25 mph with gusts of 30 to 40 mph expected. * WHERE...Portions of the Central Interior including Fairbanks. * WHEN...From 4 AM Wednesday to 4 AM AKDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

* WHAT...Southwest winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...White Mountains and High Terrain South of the Yukon River. * WHEN...From 4 AM Wednesday to 4 AM AKDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

* WHAT...Gusty north winds 20 to 30 kt and steep seas 6 to 9 ft at 7 to 8 seconds. * WHERE...All areas. * WHEN...Until 5 AM PDT Thursday. * IMPACTS...Gusty winds and/or steep seas could capsize or damage smaller vessels. * View the hazard area in detail at https://go.usa.gov/x6hks Inexperienced mariners and those operating smaller vessels should remain in port and avoid the area of hazardous conditions.

* WHAT...Heat index values up to 109. * WHERE...Portions of central, eastern, north central, southeast, southwest, and western Arkansas. * WHEN...Until 8 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 fitting clothing. Try to limit strenuous activities to early morning

At 1140 PM MDT, Doppler radar was tracking a strong thunderstorm 35 miles southeast of Partoun, or 43 miles northeast of Baker, moving east at 45 mph. HAZARD...Wind gusts up to 50 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... Hinckley and Kings Canyon. This includes US Route 6 between mile markers 22 and 34, and between mile markers 58 and 81.