Moderate

* WHAT...Daily peak heat index values up to 105 degrees. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...From 11 AM CDT /noon EDT/ Tuesday to 7 PM CDT /8 PM EDT/ Wednesday. * 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...Daily peak heat index values up to 105 degrees. * WHERE...In Kentucky, Fulton County. In Missouri, Butler, Carter, New Madrid, Ripley, and Stoddard Counties. * WHEN...From 11 AM Monday to 7 PM CDT Wednesday. * 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...Daily peak heat index values up to 105 degrees. * WHERE...In Kentucky, Carlisle, Graves, and Hickman Counties. In Missouri, Mississippi and Scott Counties. * WHEN...From 11 AM Monday to 7 PM CDT Wednesday. * 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...For the Small Craft Advisory, north winds 15 to 25 kt with gusts up to 35 kt and seas 6 to 9 ft at 7 seconds expected. For the Hazardous Seas Warning, north winds 20 to 30 kt with gusts to 35 kt and very steep and hazardous seas 8 to 10 ft at 7 to 8 seconds expected. * WHERE...Steep seas south of Port Orford and within 40 nm of shore during Monday morning, then all of the area Monday afternoon into early Tuesday afternoon. Very steep seas are

At 931 PM MDT, Doppler radar was tracking a strong thunderstorm 30 miles north of White Sulphur Springs, moving northeast at 40 mph. HAZARD...Wind gusts up to 40 mph and half inch 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... Monarch. If outdoors, consider seeking shelter inside a building.

At 938 PM MDT, Doppler radar was tracking a strong thunderstorm 20 miles northwest of Winifred, moving northeast at 35 mph. HAZARD...Wind gusts up to 50 mph and nickel 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. This storm will remain over mainly rural areas of southwestern Blaine and east central Chouteau Counties. If outdoors, consider seeking shelter inside a building.

The combination of hot temperatures and elevated humidity levels will produce heat index values between 108 and 111 degrees for several hours Monday afternoon into Monday evening. A few locations may briefly experience heat index values above 111 degrees. If you plan to spend time outside, drink plenty of water, wear light weight and light colored clothing and take frequent breaks from the heat. Young children and pets should never be left unattended in vehicles.

At 914 PM MDT, Doppler radar was tracking a strong thunderstorm over Lusk, moving northeast at 55 mph. HAZARD...Wind gusts up to 40 mph and half inch 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... Lusk, Montrose, and Niobrara County Fairgrounds. If outdoors, consider seeking shelter inside a building.

* WHAT...Heat index values up to 108 expected. * WHERE...A portion of Middle Tennessee. * WHEN...From 11 AM to 8 PM CDT Tuesday. * 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...Heat index values up to 110 degrees expected. * WHERE...Portions of central and south Mississippi, southeast Arkansas, and northeast Louisiana. * WHEN...From 11 AM to 7 PM CDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat related 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