Expected

* WHAT...Heat index values up to 105 expected. * WHERE...Palo Duro Canyon County. * WHEN...Until 9 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 or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Louisiana... Mississippi... Pearl River Near Pearl River affecting St. Tammany, Hancock and Pearl River Counties. For the Lower Pearl River...including Bogalusa, Pearl River... Moderate flooding is forecast. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Pearl River near Pearl River. * WHEN...Until Tuesday, May 19.

* WHAT...Sustained southwest to west winds 20 to 30 mph, with gusts near 50 mph expected. * WHERE...Northern Lander and Northern Eureka, Northern Elko, Ruby Mountains and East Humboldt Range in Elko, South Central Elko, Southeastern Elko, Southwest Elko, and Humboldt Counties. * WHEN...From 10 AM PDT Wednesday morning until 11 PM PDT Wednesday evening. * IMPACTS...Blowing dust will reduce visibilities at times. Travel will be difficult, particularly for high profile vehicles.

At 1130 AM EDT, Doppler radar was tracking a strong thunderstorm near New River, or 7 miles southeast of Worthington Spring, moving east at 5 mph. HAZARD...Wind gusts around 40 mph and pea 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... Sampson, Waldo, Hampton, and Brooker. If outdoors, consider seeking shelter inside a building.

* WHAT...Dangerous rip currents. * WHERE...Georgia Beaches. * WHEN...Until 8 PM EDT this 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.

At 1051 AM EDT, Doppler radar was tracking a strong thunderstorm over Wekiwa Springs State Park, or near Altamonte Springs, moving east at 10 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 hail damage to vegetation is possible. Locations impacted include... Sanford, Apopka, Altamonte Springs, Oviedo, and Winter Springs. If outdoors, consider seeking shelter inside a building.

* WHAT...Northwest winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Much of central North Dakota, including the James River Valley. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Objects left unsecured outside will be blown around. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

...RED FLAG WARNING TODAY FOR MUCH OF CENTRAL NORTH DAKOTA INCLUDING THE JAMES RIVER VALLEY... .A Red Flag Warning remains in effect today for much of central North Dakota, including the James River Valley. Critical fire weather conditions are expected today in central North Dakota and the James River Valley due to northwest winds of 20 to 35 mph with gusts to 45 mph, and relative humidity values as low as 20 percent. Any fires that ignite will spread rapidly and become difficult to control.

* WHAT...Patchy blowing dust with localized visibility of one mile or less expected. The blowing dust will occur near open agricultural areas. * WHERE...In Illinois, Livingston, Ford, Iroquois, La Salle, Grundy, Kankakee, and Southern Will Counties. In Indiana, Benton, Jasper, and Newton Counties. * WHEN...Until 7 PM CDT /8 PM EDT/ this evening. * IMPACTS...Locally reduced visibility may lead to locally hazardous driving conditions. Visibility could vary rapidly over short distances. Slow down and

* WHAT...Southwest winds 10 to 20 mph with gusts up to 35 mph for Stampede Reservoir, Lake Davis, Antelope Lake, and Eagle Lake. * WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties. * WHEN...From 11 AM this morning to 8 PM PDT this evening. * IMPACTS...Small boats, kayaks and paddle boards will be prone to capsizing and should remain off lake waters until conditions improve. Check lake conditions before heading out and be prepared for a sudden increase in winds and wave heights. Consider postponing