Moderate

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Codington, Day, Deuel, Grant, Marshall, and Roberts Counties. * WHEN...Until 1 PM CDT this afternoon. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Some patchy dense fog will restrict visibilities to less than one-half of a mile across northwest Georgia. The fog should lift after 10 AM. If driving this morning, slow down, use low-beam headlights and leave extra distance between you and the vehicle in front of you.

Areas of fog have developed across portions of the Tennessee Valley this morning, especially near sheltered river valleys. Visibility will be less than one-quarter mile at times. Locations with fog will see conditions gradually improve an hour or two after sunrise. Slow down, use low beam headlights, and allow for extra distance between yourself and other motorists if encountering fog during the morning commute.

* WHAT...Visibility less than one mile in dense fog. * WHERE...Portions of central, east central, south central, and southeast Indiana. * WHEN...Until 9 AM EDT 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 quarter mile or less in dense fog. * WHERE...Portions of east central, north central, and south central Kentucky. * WHEN...Until 10 AM CDT /11 AM EDT/ 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 quarter to one half mile in dense fog. * WHERE...Portions of south central Indiana and north central, northwest, and south central Kentucky. * WHEN...Until 11 AM EDT /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...North winds 20 to 30 kt with a few gusts up to 40 kt and steep to very steep wind-driven seas of 8 to 12 ft. Winds ease to 10 to 20 kt and seas gradually subside to 6 to 8 ft Monday night and Tuesday, but seas remain hazardous to small craft. * WHERE...All areas, with the strongest winds and steepest seas from around Port Orford southward. * WHEN...For the Hazardous Seas Warning, until 11 PM PDT this evening. For the Small Craft Advisory, until 11 PM PDT Tuesday.

* WHAT...North winds 20 to 30 kt with a few gusts up to 40 kt and steep to very steep wind-driven seas of 8 to 12 ft. Winds ease to 10 to 20 kt and seas gradually subside to 6 to 8 ft Monday night and Tuesday, but seas remain hazardous to small craft. * WHERE...All areas, with the strongest winds and steepest seas from around Port Orford southward. * WHEN...For the Hazardous Seas Warning, until 11 PM PDT this evening. For the Small Craft Advisory, from 11 PM this evening to 11 PM PDT Tuesday.

Areas of fog have developed across portions of the Cumberland Plateau this morning, especially within and near sheltered river valleys. Visibility will be less than one-quarter mile at times. Locations with fog will see conditions gradually improve an hour or two after sunrise. Slow down, use low beam headlights, and allow for extra distance between yourself and other motorists if encountering fog during the morning commute.

At 256 AM EDT, Doppler radar was tracking a strong thunderstorm near Islip, moving northeast at 30 mph. HAZARD...Winds in excess of 30 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Shirley, Medford, Manorville, Patchogue, Middle Island, Wading River, Center Moriches, Coram, Holbrook, Sayville, Farmingville, Mastic, Rocky Point, Mastic Beach, and Calverton. If outdoors, consider seeking shelter inside a building.