Moderate

* WHAT...Heat index values up to 109. * WHERE...In Illinois, Madison IL, Monroe IL, and Saint Clair IL Counties. In Missouri, Jefferson MO, Saint Charles MO, Saint Louis City MO, and Saint Louis MO Counties. * WHEN...Until 8 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. People in the Saint Louis Metropolitan Area can get information about cooling centers or energy assistance related to the excessive heat by

* WHAT...Heat index values up to 106. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 8 PM CDT Saturday. * 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 102 expected. * WHERE...South central Pennsylvania. * WHEN...From 11 AM to 8 PM EDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay out of the sun, and stay in an air-conditioned room. Know the signs and symptoms of heat exhaustion and heat stroke. Review heat safety and preparedness information at weather.gov/safety/heat.

* WHAT...Afternoon Heat index values of 100 to 108. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...Until 7 PM CDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of water and 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. Check up on relatives

At 216 AM CDT, Doppler radar was tracking a strong thunderstorm over Berlin, moving east at 45 mph. HAZARD...Wind gusts up to 40 mph and half inch 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... Rush Lake around 220 AM CDT. Oshkosh around 235 AM CDT. Central Lake Winnebago around 240 AM CDT. Other locations impacted by this storm include Pickett, Highland

At 219 AM CDT, Doppler radar was tracking a strong thunderstorm over Green Lake, or near Berlin, moving east 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. Minor hail damage to vegetation is possible. Locations impacted include... Fond Du Lac, Ripon, North Fond Du Lac, Rosendale, Southern Lake Winnebago, Eldorado, Van Dyne, and West Rosendale.

* WHAT...Heat index values around 100 degrees expected. High temperatures in the low 90s. * WHERE...Portions of northern Indiana, southwest Michigan, and northwest Ohio. * WHEN...Until 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.

* WHAT...Heat index values up to 109 expected. * WHERE...Albemarle, Greene, Nelson, Orange, Spotsylvania, Culpeper, Madison, and Rappahannock 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 103 expected. * WHERE...In Virginia, Page, Shenandoah, Augusta, Eastern Highland, and Rockingham Counties. In West Virginia, Eastern Grant, Eastern Pendleton, and Hardy 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.

At 225 AM CDT, Doppler radar was tracking a strong thunderstorm near Nome, moving northeast at 15 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. This storm will remain over mainly rural areas of southeastern Liberty County. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to