Moderate

Patchy dense fog has developed across the area, especially along the Hudson River Valley and in many narrow or sheltered higher terrain valleys. The fog will reduce visibility to a half mile or less, so drivers are urged to use caution this morning and be prepared for rapidly changing visibility. The fog is expected to dissipate by around 9 AM.

At 255 AM CDT, Doppler radar was tracking a strong thunderstorm over Benedict, or near York, moving southeast at 35 mph. HAZARD...Wind gusts up to 50 mph and nickel 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. This strong thunderstorm will be near... York and Waco around 300 AM CDT. This includes Interstate 80 between mile markers 354 and 365. If outdoors, consider seeking shelter inside a building.

* WHAT...Heat index values up to 109. * WHERE...Portions of central, east central, southeast, and west central Georgia. * WHEN...Until 8 PM EDT 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

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of northwest, southwest, and western Oklahoma and northern Texas. * WHEN...From 11 AM this morning to 8 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.

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of south central and southeast Kansas. * WHEN...From 1 PM this afternoon to 8 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in

* WHAT...Heat index values of 105 to 109 expected. * WHERE...Bertie, Chowan, and Perquimans Counties. * WHEN...From 11 AM this morning to 8 PM EDT 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.

* WHAT...Heat index values up to 109 expected. * WHERE...In North Carolina, Bladen and Robeson Counties. In South Carolina, Darlington, Dillon, Florence, Marion, and Marlboro Counties. * WHEN...From 11 AM this morning to 8 PM EDT 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.

* WHAT...Heat index values up to 111 expected. * WHERE...Portions of southeast Alabama, 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 sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and

* WHAT...Heat index values up to 106 expected. * WHERE...Barber, Comanche, Kiowa, Pratt, Stafford, and Clark Counties. * WHEN...From 1 PM this afternoon to 8 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in

At 223 AM EDT, Doppler radar was tracking a strong thunderstorm near Louisburg, moving northeast at 20 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Henderson, Louisburg, Warrenton, Norlina, Littleton, Kittrell, Middleburg, Macon, Centerville, and Ingleside. If outdoors, consider seeking shelter inside a building.