Moderate

* WHAT...Southwest winds 15 to 25 mph with gusts up to 35 mph. Wave heights up to 3 feet on Lake Tahoe and Pyramid Lake. * WHERE...Greater Lake Tahoe Area, Lassen-Eastern Plumas-Eastern Sierra Counties, Mono County, Mineral and Southern Lyon Counties, Greater Reno-Carson City-Minden Area, and Western Nevada Basin and Range including: Honey Lake, Pyramid Lake, Lake Davis, Frenchman Lake, Stampede, Boca, and Prosser Creek Reservoir, Donner Lake, Lake Tahoe, Fallen Leaf Lake, Washoe Lake, Lahontan Reservoir,

* WHAT...Heat index values around 105. * WHERE...Portions of central, east central, south central, and southeast Kansas. * WHEN...Until 8 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 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. To reduce risk during outdoor work, the Occupational Safety and

* WHAT...Dangerous swimming conditions are expected along the Lake Superior shoreline due to high wave action and strong rip currents. * WHERE...Minnesota Park Point and Wisconsin Point Beaches. * WHEN...From 6 AM CDT this morning through this evening. * IMPACTS...Life-threatening waves and rip currents are expected. Stay out of the water and stay away from dangerous areas like piers and breakwalls. Remain out of the water to avoid hazardous swimming conditions.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northwest Minnesota and northeast and southeast North Dakota. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Heat index values up to 97 expected. * WHERE...Anoka, Carver, Dakota, Hennepin, Ramsey, Scott, and Washington Counties. * WHEN...From 1 PM this afternoon to 6 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 106. * WHERE...Bartow, Catoosa, Chattooga, Dade, Floyd, Gordon, Murray, Polk, Walker, and Whitfield Counties. * WHEN...Until 8 PM EDT 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of western and central North Dakota. * WHEN...Until 10 AM CDT /9 AM MDT/ this morning. * IMPACTS...Low visibility will make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Northwest and north central North Dakota. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility will make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

At 418 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Saranac to near Portland. Movement was east at 45 mph. HAZARD...Winds in excess of 40 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... Lansing... Ionia... Charlotte... Mason... St. Johns... Portland...

* WHAT...Heat index values up to 105. * WHERE...Portions of central and southern Iowa. * WHEN...Until 7 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...While heat index values may not reach 105 degrees each day, the combination of the longevity of the heat and little or limited relief during the overnight periods with warm lows have prompted the multi-day Heat Advisory. Drink plenty of fluids, stay in an air-conditioned room, stay out of