Moderate

* WHAT...Peak daily Heat Index values near 100 up to around 105 degrees expected. * WHERE...All of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...From 11 AM CDT /noon EDT/ Tuesday to 7 PM CDT /8 PM EDT/ Wednesday. * 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 108 expected. * WHERE...A portion of Middle Tennessee. * WHEN...From 11 AM Tuesday to 8 PM CDT Wednesday. * 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 105 expected. * WHERE...Coffee, Overton, Warren, and White Counties. * WHEN...From 11 AM Tuesday to 8 PM CDT Wednesday. * 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...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 5 to 8 ft expected. * WHERE...Lake IL and Northern Cook Counties. * WHEN...From 5 PM CDT this afternoon through Tuesday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...For the first Heat Advisory, until 7 PM CDT this evening. For the second Heat Advisory, from noon to 7 PM CDT Tuesday. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. Take extra precautions when outside. Wear lightweight and loose

* WHAT...Heat index values up to 105 expected. * WHERE...Cherokee County. * WHEN...From noon to 7 PM CDT Tuesday. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. 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.

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...For the first Heat Advisory, until 7 PM CDT this evening. For the second Heat Advisory, from noon to 7 PM CDT Tuesday. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. Take extra precautions when outside. Wear lightweight and loose

* WHAT...Southwest winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...White Mountains and High Terrain South of the Yukon River. * WHEN...From 4 AM Wednesday to 4 AM AKDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

* WHAT...Visibility as low as one quarter mile in dense fog. * WHERE...Fairbanks Metro Area. * WHEN...Until 10 AM AKDT 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...Southeast winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Northern Denali Borough. * WHEN...From 10 AM to 10 PM AKDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Wind gusts up to 40 mph possible along the Parks Hwy towards Anderson. There is a chance wind gusts could be stronger depending on the track and strength of the low moving across the YK Delta.