Expected

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Portions of Central and Eastern Lake Superior. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Low visibility will make navigation difficult. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Portions of Western Lake Superior. * WHEN...Until noon EDT /11 AM CDT/ today. * IMPACTS...Low visibility will make navigation difficult. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.

* WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN...Through late Tuesday night. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Beaches on the north side of north facing piers will be most dangerous. Remain out of the water to avoid hazardous swimming conditions

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northwest and north central North Dakota, including the northern James River Valley. * 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.

At 320 AM EDT, Doppler radar was tracking the leading edge of a multiple county area of strong thunderstorms along a line extending from near Williamsport to Danville to Shamokin to 17 miles southwest of Kulpmont. Movement was east northeast at 20 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...

* WHAT...Dangerous rip currents expected. * WHERE...Kings (Brooklyn), Southwest Suffolk, Southeast Suffolk, Southern Queens and Southern Nassau Counties. * WHEN...From 6 AM EDT this morning through this evening. * IMPACTS...Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...The high risk may continue on Wednesday, mainly

* WHAT...High swim risk from high wave action, rip currents and longshore currents. Dangerous swimming conditions are expected. * WHERE...Huron, Sanilac and St. Clair Counties. * WHEN...From 8 AM EDT this morning through this evening. * IMPACTS...Strong currents can pull swimmers into deep water and prevent return to shore. Remain out of the water to avoid hazardous swimming conditions.

* WHAT...Dangerous swimming conditions due to 3-5 ft waves and rip currents. * WHERE...Manistee County. * WHEN...From 6 AM EDT this morning 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.

* WHAT...Dangerous swimming conditions due to 3-5 ft waves and rip currents. * WHERE...Alcona and Iosco Counties. * WHEN...From 6 AM EDT this morning 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.

At 310 AM EDT, Doppler radar was tracking a strong thunderstorm near Tyrone, moving east at 25 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... State College, Tyrone, Park Forest Village, Philipsburg, Stormstown, Lemont, Bald Eagle, Houserville, Warriors Mark, Pine Grove Mills,