Moderate

* WHAT...Dangerous swimming conditions are expected due to high wave action and strong rip currents. * WHERE...Marquette and Alger Counties. * WHEN...From noon EDT today through this evening. * IMPACTS...High wave action and dangerous currents will lead to life threatening swimming conditions. Waves in rapid succession can tire swimmers quickly. * ADDITIONAL DETAILS...Current related fatalities and rescues in the past have occurred due to similar wave conditions at locations listed below:

At 231 AM CDT, Doppler radar was tracking a line of strong thunderstorms centered 4 miles east of Ada, moving east at 50 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small tree limbs and blow around unsecured objects. Locations impacted include... Minneapolis, Bennington, Miltonvale, Glasco, Delphos, Tescott, Culver, Wells, Aurora, and Ada. If outdoors, consider seeking shelter inside a building.

An unsettled monsoon pattern, associated with Invest 92W continues to intensify across eastern Micronesia. Invest 92W is now rated low by the Joint Typhoon Warning Center, which means development into a significant tropical cyclone is possible, but not likely within the next 24 hours. The latest ASCAT pass does show a Low- Level Circulation Center with near gale winds to the east of the center, north of Pohnpei. A relative lull remains in place across

* WHAT...Heat index values up to 110. * WHERE...Portions of southeast Arkansas, northeast Louisiana, and much of Mississippi. * WHEN...Until 8 PM CDT Monday. * IMPACTS...High temperatures and high humidity may cause heat related illnesses. * ADDITIONAL DETAILS...Overnight low temperatures are expected to range from the mid to upper 70s through the same time frame. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Visibility as low as a quarter mile in dense fog. * WHERE...South Laramie Range and Foothills including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN...Until 7 AM MDT 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.

Areas of fog, some locally dense with visibilities under one half mile can be expected early this morning. Motorists should exercise caution, as visibilities could change suddenly over short distances. If you encounter dense fog, slow down, give yourself plenty of braking distance with other vehicles, and keep headlights on low beam.

The combination of temperatures rising to near 90 degrees and high humidity levels will result in maximum heat indices of 95 to 105 degrees in most locations this afternoon. Those who are sensitive to the heat are encouraged to take precautions to prevent heat-related illness.

At 144 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Prairie View to Portis. Movement was north at 20 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Strong thunderstorms will be near... Kensington, Agra, Long Island, Gaylord, Harlan, and Cedar around 150 AM CDT. Athol around 155 AM CDT. Other locations in the path of these storms include Smith Center and

* WHAT...Visibility of 1/4 mile or less in dense fog. * WHERE...City and Borough of Yakutat. * WHEN...Until 7 AM AKDT Sunday. * IMPACTS...Low visibility could make travel conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

At 147 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms near Tipton, or 17 miles west of Beloit, moving northeast at 35 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. This strong thunderstorm will be near... Glen Elder around 155 AM CDT. If outdoors, consider seeking shelter inside a building.