Expected

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of southeast Louisiana and southern Mississippi. * WHEN...From 10 AM to 7 PM CDT Friday. * 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...An increased risk of sneaker waves and strong rip currents expected. * WHERE...San Francisco County. * WHEN...Through 5 AM Sunday morning. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Sneaker waves can sweep across the shoreline without warning, pulling people into the sea from rocks, jetties and beaches. Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf

At 1016 PM CDT/916 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from near Selfridge to near Mclaughlin to near Glencross. Movement was east at 40 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Mobridge, Mclaughlin, Little Eagle, Wakpala, Pollock, Kenel, Trail City, Mahto, Indian Creek Rec Area, Indian Memorial Rec Area, Spring

* AFFECTED AREA...Fire Weather Zone 492 Central Utah West Desert and Fire Weather Zone 495 Color Country West Desert. * WINDS...Southwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly. A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can

* AFFECTED AREA...Fire Weather Zone 497 Mojave Desert. * WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly. A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

At 1121 PM EDT, a strong thunderstorm was located near Willis, moving northeast at 40 mph. Winds in excess of 40 mph are possible with this storm. Locations impacted include... Floyd... Indian Valley... Pilot... Copper Hill... Ferrum... Willis... and Terrys Fork. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways.

At 1120 PM EDT, a line of strong thunderstorms was along a line extending from Byromville to near Drayton to near Fort Early to Doles to near Red Rock, and moving northeast at 45 mph. HAZARD...40 mph wind and heavy rain. SOURCE...Radar indicated. IMPACT...Expect minor damage to tree limbs and blowing around of light, unsecured objects. Heavy rain may cause temporary street flooding especially in poor drainage areas. Locations impacted include... Cordele, Hawkinsville, Vienna, Unadilla, Rochelle, Arabi, Byromville,

At 1122 PM EDT, a strong thunderstorm was located near Shawsville, moving northeast at 45 mph. Winds in excess of 40 mph are possible with this storm. Locations impacted include... Roanoke... Blacksburg... Salem... Christiansburg... Vinton... Troutville... and Pilot. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways.

At 1101 PM EDT, Doppler radar was tracking a strong thunderstorm near Greenwood, moving northeast at 45 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... Greenwood, Ninety Six, Cross Hill, Cokesbury, Waterloo, Hodges, Lake Greenwood State Park, Lake Greenwood, Greenwood State Park, and Ninety Six Historic Site. If outdoors, consider seeking shelter inside a building.

At 1100 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Clearwater to near Waynesboro to near Millen. Movement was northeast at 55 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... Aiken, North Augusta, Waynesboro, Barnwell, Savannah River Site, Aiken Mall, Augusta, Plant Vogtle, Clearwater, Belvedere, Hephzibah,