Moderate

* WHAT...Heat index values up to 109 expected. * WHERE...All of central North Carolina. * 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 on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in

* WHAT...West winds 20 to 25 mph with gusts up to 30 mph expected for American Falls Reservoir. * WHERE...Lower Snake River Plain. * WHEN...From 4 PM this afternoon to 9 PM MDT this evening. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft.

* WHAT...Heat index values up to 96. * WHERE...Portions of central, eastern, northeastern, and southeastern Massachusetts and northern Rhode Island. * 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.

* WHAT...Heat index values up to 98. * WHERE...Franklin County, Hampshire County, Hampden County, Hartford CT, Tolland CT, and Windham CT. * 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...Visibility of a quarter-mile or less in dense fog. * WHERE...Coastal Hancock and Coastal Washington Counties. * WHEN...Until 7 AM EDT 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...Temperatures between 90 and 95 for most areas, with some readings above 100 degrees. Hottest conditions across the East Bay Hills and Valleys. * WHERE...The Santa Clara Valley and Eastern Hills, and The East Bay Hills and Valleys. * WHEN...Until 7 PM PDT Friday. * IMPACTS...This level of heat affects primarily those individuals extremely sensitive to heat, especially when outdoors without effective cooling and/or adequate hydration. Hydration is a critical piece to surviving the heat. Drink water, and

A low pressure system will bring increased moisture toward Yakutat and the northern gulf coast this weekend. This event will not be long in duration, lasting around 24 to 48 hours. It will bring heavy rain during most of the event, with the most likely scenario being 2 to 4 inches of rain over 24 hours. There is an 80% chance of greater than 2 inches in 24 hours and a 60% chance of greater than 3 inches of rain in 48 hours. There is also a 30% chance that

* WHAT...Heat index values up to 109 expected. * WHERE...All of mainland eastern North Carolina away from the immediate coast. * 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in

At 213 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Thornport to near Belfast. Movement was east at 50 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Athens, Jackson, Wellston, Nelsonville, New Lexington, Glouster, McConnelsville, Mcarthur, Somerset, Shawnee, Lake Hope State Park,

At 112 AM CDT, Doppler radar indicated a strong thunderstorm 6 miles west of Cherokee Landing State Park, moving east at 30 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small tree limbs and blow around unsecured objects. Locations in or near the path include... Tahlequah... Cookson... Cherokee Landing State Park... If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to