Moderate

* WHAT...West winds 25 to 35 mph with gusts up to 45 mph expected. Occasional gusts between 45 and 55 mph possible. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.

At 1259 AM CDT, trained weather spotters reported a strong thunderstorm 13 miles southeast of Audubon, moving northeast at 45 mph. HAZARD...Wind gusts of 50 to 55 mph and heavy rainfall of one to two inches. SOURCE...Trained weather spotter reported a wind gust of 53 mph near Casey. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Ponding of water on roadways, low visibilities, and rises in small streams and creeks. Locations impacted include...

* WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Allegan and Van Buren counties. * WHEN...Through this afternoon. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures.

* WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon and Ottawa counties. * WHEN...Through this evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures.

* WHAT...Gusts of greater than 25mph. * WHERE...San Luis Reservoir. * WHEN...From 5 PM Tuesday to midnight PDT Tuesday Night. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft.

At 1228 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms near Kennard, or 7 miles northwest of Bennington, moving east at 40 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. * Locations impacted include... Blair, Bennington, Missouri Valley, Valley, Arlington, Fort Calhoun, Kennard, Modale, Leshara, Washington, Desoto Bend National Wildlife Refuge, and Wilson Island State Park.

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Much of central North Dakota including the James River Valley. * WHEN...Until 4 AM CDT early this morning. * IMPACTS...Things left unsecured outside will be blown around. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

* WHAT...West winds 30 to 40 mph with gusts up to 55 mph. * WHERE...Benson, Cavalier, Eddy, Nelson, Ramsey, Towner, Western Walsh, Barnes, Griggs, and Steele Counties. * WHEN...Until 7 AM CDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.

Patchy fog will continue to impact portions of eastern South Dakota late tonight through early Tuesday morning. The density of the fog will vary over short distances, but visibility as low as a quarter of a mile will be possible for the next couple of hours. If traveling this morning, reduce your speed and use low- beam headlights when encountering foggy areas. Winds are expected to increase early Tuesday morning, which will dissipate the fog before sunrise Tuesday.

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From noon to 7 PM CDT Tuesday. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning