Moderate

* WHAT...Life threatening waves of 6 to 10 feet and dangerous currents are expected. * WHERE...Sheboygan and Ozaukee Counties. * WHEN...From 4 PM CDT this afternoon through Tuesday afternoon. * IMPACTS...Dangerous swimming conditions are expected due to high waves and onshore winds. Stay out of the water and away from dangerous areas like piers and breakwalls. Strong structural and longshore currents are expected. Rip currents are possible.

* WHAT...Visibility as low as one quarter mile in dense fog. * WHERE...Creston, Moses Lake, Quincy, Cashmere, Waterville, Odessa, Wenatchee, Chelan, Entiat, Mansfield, Pangborn Airport, Ephrata, Othello, Number 1 Canyon, Badger Mountain Road, Number 2 Canyon, Grand Coulee, Ritzville, Wilbur, Coulee City, and Harrington. * WHEN...Until 8 AM PDT 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.

At 644 AM CDT /544 AM MDT/, Doppler radar was tracking a line of strong thunderstorms extending from 7 miles north of Herreid to over Lebanon, or extending from 7 miles north of Herreid to 10 miles northeast of Gettysburg, moving northeast at 55 mph. HAZARD...Wind gusts of 50 to 55 mph and half inch 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. The strong thunderstorm will be near...

At 545 AM CDT /445 AM MDT/, Doppler radar was tracking a line of strong thunderstorms extending from 6 miles west of Isabel to 11 miles southwest of Bunker, or extending from 23 miles west of Timber Lake to 33 miles northwest of Murdo, moving northeast at 45 mph. HAZARD...Wind gusts of 50 to 55 mph and half inch 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. The strong thunderstorm will be near...

* WHAT...Heat index values up to 109 expected. * WHERE...In Alabama, Limestone, Madison, Morgan, Colbert, Franklin AL, Lauderdale, and Lawrence Counties. In Tennessee, Lincoln and Moore Counties. * WHEN...From 11 AM to 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

* WHAT...Heat index values up to 106. * WHERE...Portions of north central, northeast, and south central Texas. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities. Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous

At 540 AM CDT /440 AM MDT/, Doppler radar was tracking a line of strong thunderstorms extending from 8 miles southeast of Mcintosh to 9 miles south of Ridgeview, or extending from 10 miles west of Bullhead to 19 miles east of Eagle Butte, moving northeast at 45 mph. HAZARD...Wind gusts of 50 to 55 mph and half inch 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. The strong thunderstorm will be near...

* WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...A portion of northwestern South Dakota. * WHEN...From 11 AM this morning to 9 PM MDT this evening. * IMPACTS...Sudden wind gusts can cause drivers to lose control, especially in lightweight or high profile vehicles, or for those pulling trailers. Strong winds can cause blowing dust, reduced visibility, and flying debris. The strong winds will cause extreme fire danger across portions of northwestern South Dakota.

Patchy dense fog with visibility of one-quarter mile or less has developed in the Yakima Valley, and is expected to persist into the morning. If driving, slow down, use low-beam headlights, and allow additional time to reach your destination.