Moderate

* WHAT...Heat index values up to 109 expected. * WHERE...Portions of central, eastern, and southeast Arkansas. * WHEN...From 11 AM to 8 PM CDT Thursday. * 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 1042 PM MDT, Doppler radar was tracking a cluster of strong thunderstorms 9 miles south of Timpas, or 23 miles southwest of La Junta, moving southeast at 15 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. Locations impacted include... Higbee and Timpas. If outdoors, consider seeking shelter inside a building.

At 1044 PM MDT, Doppler radar was tracking a strong thunderstorm over Penrose, or 24 miles west of Pueblo, moving northeast at 20 mph. HAZARD...Wind gusts of 50 to 55 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. Locations impacted include... Florence and Penrose. If outdoors, consider seeking shelter inside a building.

At 1021 PM MDT, Doppler radar was tracking a strong thunderstorm near Florence, or 27 miles west of Pueblo, moving southeast at 10 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. Locations impacted include... Florence, Penrose, and Wetmore. If outdoors, consider seeking shelter inside a building.

At 1026 PM MDT, Doppler radar was tracking a cluster of strong thunderstorms over Swink, or near La Junta, moving southeast at 10 mph. HAZARD...Wind gusts of 50 to 55 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. Locations impacted include... La Junta, North La Junta, and Swink. If outdoors, consider seeking shelter inside a building.

At 1201 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near St. Marys to near Forked Run State Park. Movement was east at 40 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... Parkersburg, Harrisville, St. Marys, Elizabeth, Forked Run State Park, Pennsboro, Belmont, West Union, Mineralwells, North Bend State

* WHAT...Heat index values up to 107 degrees are expected. * WHERE...Portions of East Arkansas, North Mississippi, and West Tennessee. * WHEN...From 11 AM to 8 PM CDT Thursday. * 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.

At 948 PM MDT, Doppler radar was tracking a cluster of strong thunderstorms 8 miles southwest of Timpas, or 25 miles southwest of La Junta, moving east at 15 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. Locations impacted include... Timpas. If outdoors, consider seeking shelter inside a building.

At 1157 PM AST, Doppler radar was tracking a strong thunderstorm over north-central Puerto Rico, moving west at 20 mph. HAZARD...Wind gusts up to 30 to 40 mph, frequent lightning and heavy rain. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Arecibo, Barceloneta, Florida, Manati, Vega Baja, Vega Alta, Ceiba, Pajonal, Imbery, La Luisa, La Alianza, San Antonio, Coto Norte, Barahona, Bajadero, Miranda and Monserrate.

At 1041 PM CDT, Doppler radar was tracking a strong thunderstorm near Richfield, moving southeast at 20 mph. HAZARD...Wind gusts of 50 to 55 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 strong thunderstorm will be near... Rolla around 1100 PM CDT. If outdoors, consider seeking shelter inside a building.