Moderate

A good amount of sunshine and another day under a dome of heat will send temperatures into the low to mid 90s for most of the area again today. When combined with higher than normal humidities, this results in heat indices from 95 to 100 degrees for much of eastern Kentucky during the afternoon. There is only a small chance for showers or storms to provide limited and localized relief today. Try to limit time outdoors today during the afternoon, when heat

* WHAT...Areas of dense fog with visibilities less than one-half mile. * WHERE...Portions of central, north central, northwest, and west central Minnesota and northeast and southeast North Dakota. * 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.

Temperatures this afternoon into the early evening will reach the upper 80s to low 90s across the area. This, combined with high humidity, will result in heat indices ranging from the mid 90s to near 100 degrees in some locations. Try to limit time outdoors this afternoon when heat illness is most likely to occur. If going outdoors, make sure to drink plenty of fluids and take breaks out of the sun.

* WHAT...Visibilities under a quarter mile at times in dense fog. * WHERE...Most of western and central North Dakota. * WHEN...Until 11 AM CDT /10 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.

* WHAT...Heat index values up to 109 degrees can be expected. * WHERE...all of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 7 PM CDT /8 PM EDT/ Sunday. * 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning

Light winds and a clear to partly cloudy sky is leading to the development of fog, locally dense. Fog is likely to continue and may become more widespread before sunrise.

* WHAT...Dangerous rip currents expected. * WHERE...Walton, Bay, south-facing Gulf, and Franklin County Beaches. * WHEN...Through late Thursday night. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Harrison, Atchison MO, Gentry, Holt, Nodaway, and Worth 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...East winds 10 to 20 mph with gusts up to 30 mph expected. * WHERE...Fort Peck Lake. * WHEN...From noon today to midnight tonight. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Wave heights up to 3 feet possible. Boaters on Fort Peck Lake should use extra caution since strong winds and rough waves can overturn small craft.

Patchy dense fog is increasing over central and northwest North Dakota early this morning, with visibilities down to a quarter mile at times. Motorists should be prepared for rapidly changing visibilities, and should use extra caution traveling. Use low beam headlights and be extra cautious at intersections and railroad crossings. If fog continues to expand, a dense fog advisory may be needed. The fog may linger through much of the morning before completely dissipating.