Expected

At 245 AM EDT, a strong thunderstorm was located near Bellefontaine, moving southeast at 45 mph. HAZARD...Wind gusts up to 40 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Hail may cause minor damage to vegetation. Locations impacted include... Columbus, Dublin, Delaware, Upper Arlington, Hilliard, Marysville, Worthington, Bellefontaine, Powell, Plain City, West Jefferson,

* WHAT...Dense fog will reduce visibility to 1/4 to 1/2 NM. * WHERE...Portions of Lake Superior. * WHEN...Until 11 AM CDT 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...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 7 to 11 ft expected. * WHERE...In Illinois, Lake, Northern Cook and Central Cook Counties. In Indiana, Lake and Porter Counties. * WHEN...Through Wednesday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. Remain out of the water to avoid dangerous swimming conditions

* WHAT...Temperatures from 100 to 104 expected. * WHERE...Middle Rio Grande Valley including the Albuquerque Metro Area, Northwest Plateau, Espanola Valley, and Lower Rio Grande Valley. * WHEN...From 1 PM this afternoon to 7 PM MDT this evening. * IMPACTS...Hot temperatures 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.

* WHAT...Temperatures from 104 to 107 expected. * WHERE...Curry County, De Baca County, Quay County, Roosevelt County, and Chaves County Plains. * WHEN...From 1 PM this afternoon to 7 PM MDT this evening. * IMPACTS...Hot temperatures 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.

* WHAT...Heat index values up to 112 expected. * WHERE...Portions of southeast Alabama, Big Bend and Panhandle Florida, and south central and southwest Georgia. * WHEN...From 11 AM EDT /10 AM CDT/ this morning to 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sunshine, and check up on relatives and neighbors. Take extra precautions if you work or spend time outside. When

* WHAT...Dangerously hot conditions with heat index values up to 115 expected. * WHERE...Portions of Big Bend and Panhandle Florida. * WHEN...From 11 AM EDT /10 AM CDT/ this morning to 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events, particularly for those working or participating in outdoor activities. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sunshine, and check up on relatives and neighbors.

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Portions of northern and west central Florida, including the following counties, in northern Florida, Levy. In west central Florida, Citrus and Hernando. * WHEN...Until 430 AM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 243 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 4 inches of rain

Areas of fog are developing in the Langdon, Cando areas and around New Rockford to Tolna in northeast North Dakota. The fog area is likely to expand overnight with some patchy dense fog forming reducing visibility to one quarter mile or less. Motorists should be prepared for rapidly changing conditions and use extra caution traveling. Use low beam headlights and be extra cautious at intersections and railroad crossings.

* WHAT...Heat index values around 105 expected. * WHERE...Hancock County. * WHEN...Until 7 PM CDT this evening. * 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 or evening. Take action when you see symptoms of heat exhaustion and heat stroke.