Moderate

At 1227 AM MDT, Doppler radar was tracking a strong thunderstorm 25 miles northeast of Winifred, moving northeast at 30 mph. HAZARD...Pea size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Hays. Monitor the weather situation closely and be alert for threatening weather conditions.

* WHAT...Southeast winds at 10 to 20 with gusts to 30 mph, switching to west northwest at 20 to 30 mph with gusts up to 50 mph after 8 AM. * WHERE...Fort Peck Lake, Medicine Lake, and Nelson Reservoir. * WHEN...Until midnight MDT Monday Night. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Wave heights as high as 4 to 5 feet on Fort Peck Lake. Boaters on Fort Peck Lake should use extra caution since strong winds

At 1148 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 18 miles southeast of Parker School to 20 miles west of Hays. Movement was northeast at 30 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... Cleveland and Lloyd. If outdoors, consider seeking shelter inside a building.

At 1151 PM MDT, Doppler radar was tracking a strong thunderstorm near Alzada, or 54 miles southeast of Broadus, moving northeast at 30 mph. HAZARD...Wind gusts of 50 to 55 mph and penny 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... Alzada and Albion. Monitor the weather situation closely and be alert for threatening weather conditions.

* WHAT...Heat index values up to 108 expected. * WHERE...Atoka, Bryan, Coal, Hughes, Johnston, and Marshall Counties. * WHEN...From noon today to 7 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

* WHAT...Heat index values up to 107 expected. * WHERE...Delaware and Ottawa Counties. * WHEN...From noon today to 7 PM CDT this evening. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. 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 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From noon today to 7 PM CDT this evening. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of central, eastern, north central, southeast, southwest, and western Arkansas. * WHEN...From 11 AM this morning 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.

At 1118 PM MDT, Doppler radar was tracking a strong thunderstorm between Harlem and Fort Belknap, moving northeast at 20 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... Harlem, Fort Belknap, and Turner. If outdoors, consider seeking shelter inside a building.

* WHAT...Heat index values up to 110 degrees expected. * WHERE...Portions of east Mississippi. * WHEN...From 11 AM this morning to 7 PM CDT this evening. * 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