Moderate

Visibilities are a half mile or less across portions of the mountains this morning. The fog will impact travel, especially along I-81 between Chilhowie and Christiansburg and along the Blue Ridge, as well as I-64 in southeast West Virginia. Be alert to rapidly changing visibilities if traveling. Allow extra time to get to your destination. The fog should lift between 9-10am.

* 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 10 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.

Areas of fog will reduce the visibility to one quarter mile at times in parts of southwest and south central North Dakota this morning. This includes areas along and south of the I-94 corridor. Motorists should be prepared for rapidly changing visibilities. Use your low beam headlights and be extra cautious at intersections and railroad crossings. Low visibilities are expected to improve by around mid-morning.

* WHAT...Heat index values up to 101. * WHERE...Portions of south central and southwest Illinois and central, east central, and southeast Missouri. * WHEN...Until 8 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.

* WHAT...For the Small Craft Advisory, north winds 20 to 25 kt with gusts up to 30 kt and seas 5 to 9 ft at 5 to 6 seconds expected. For the Hazardous Seas Watch, north winds 20 to 30 kt with gusts up to 35 kt and very steep and hazardous seas 7 to 10 ft at 5 to 6 seconds possible. * WHERE...Small Craft Advisory for all of the area late this evening through Monday evening, except a Hazardous Seas Watch from Gold Beach to Pt. St. George during Monday afternoon and evening.

At 359 AM CDT, Doppler radar was tracking slow-moving heavy rain producing thunderstorms along a line extending from near Cascade to Pearl City. Movement was south at 15 mph. HAZARD...Minor flooding. SOURCE...Radar indicated. IMPACT...Slowing or redirecting of traffic due to ponding or flowing water. Closure of waterfront access due to flooding. Locations impacted include... Dubuque, Freeport, Galena, Asbury, Lena, Bellevue, Stockton, Epworth, East Dubuque, Warren, Peosta, Hanover, Pearl City, Elizabeth,

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of central, north central, and northeast South Dakota. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

* WHAT...Life threatening waves of 4 to 8 feet today and tonight, building to 8 to 12 feet Sunday and Sunday night, and 4 to 8 feet Monday into Tuesday evening. Dangerous currents are expected through this period. * WHERE...Sheboygan, Ozaukee, Milwaukee, Racine and Kenosha Counties. * WHEN...Through Tuesday evening. * 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

* WHAT...Visibility one quarter mile or less at times in dense fog. * WHERE...Cottonwood, Lincoln, Lyon, Murray, and Pipestone Counties. * 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...Visibility one half mile or less at times in dense fog. * WHERE...Jerauld, Aurora, and Brule Counties. * 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.