Moderate

At 633 PM PDT, Doppler radar was tracking a strong thunderstorm 13 miles east of Paisley, or 39 miles north of Lakeview, moving north at 20 mph. HAZARD...Winds in excess of 30 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. This storm will remain over mainly rural areas of central Lake County. If outdoors, consider seeking shelter inside a building.

At 740 PM MDT, Doppler radar was tracking a strong thunderstorm 22 miles east of Sunnyside, or 40 miles southeast of Duchesne, moving northeast at 15 mph. HAZARD...Wind gusts up to 50 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. This storm will remain over mainly rural areas of northeastern Carbon County. If outdoors, consider seeking shelter inside a building.

The National Weather Service in Phoenix has issued a * Dust Advisory for... Southwestern La Paz County in west central Arizona... West central Yuma County in southwestern Arizona... Eastern Imperial County in southeastern California... * Until 745 PM MST/745 PM PDT/. * At 644 PM MST/644 PM PDT/, a wall of dust was along a line extending from 10 miles southwest of Cibola to 17 miles north of Algodones Dunes to 6 miles north of Andrade to Araby, moving west at 25 mph.

* WHAT...Heat index values up to 108 expected. * WHERE...Portions of central, eastern, north central, southeast, and western Arkansas. * WHEN...From 10 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 615 PM PDT, Doppler radar was tracking a strong thunderstorm over Howard Prairie Recreation Area, or 13 miles east of Ashland, moving north at 15 mph. HAZARD...Winds in excess of 30 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Buck Prairie Nordic Trails. If outdoors, consider seeking shelter inside a building. Frequent cloud to ground lightning is occurring with this storm.

* WHAT...Visibility less than one half mile in dense fog. * WHERE...Portions of central and southern Iowa. * WHEN...Until 10 AM CDT Thursday. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

At 614 PM PDT, Doppler radar was tracking a strong thunderstorm 13 miles northeast of Leggett, or 16 miles northwest of Covelo, moving southwest at 10 mph. HAZARD...Half inch size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Mainly rural areas of North Central Mendocino and Southwestern Trinity Counties. Monitor the weather situation closely and be alert for threatening weather conditions.

At 649 PM MDT, Doppler radar was tracking a strong thunderstorm over Dove Creek, or 25 miles east of Monticello, moving north at 30 mph. HAZARD...Wind gusts up to 40 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 and outdoor objects is possible. Locations impacted include... Dove Creek and Egnar. This includes the following highways... U.S. Highway 491 in Colorado between mile markers 54 and 67.

At 649 PM MDT, Doppler radar was tracking a strong thunderstorm 17 miles southeast of Higbee, or 32 miles southeast of North La Junta, moving northeast at 20 mph. HAZARD...Heavy rain, wind gusts of 40 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. This storm will remain over mainly rural areas of northwestern Baca, east central Las Animas and southwestern Bent Counties.

At 656 PM MDT, Doppler radar was tracking a strong thunderstorm 23 miles southwest of Afton, moving north 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... Mount Riley, Camel Mountain, and Kilbourne Hole. If outdoors, consider seeking shelter inside a building.