Moderate

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Anchorage, Lower Matanuska Valley, and Southern Susitna Valley. * WHEN...Until 9 AM AKDT this morning. * IMPACTS...Hazardous driving conditions due to low visibility. * ADDITIONAL DETAILS...A band of locally dense fog has moved north from Cook Inlet over Knik Arm and across the Anchorage Bowl, Matanuska Valley, and southern Susitna Valley, including portions of the Parks and Glenn Highways. The fog will likely persist

* WHAT...Visibility as low as one quarter mile in dense fog. * WHERE...NW Kenai Peninsula and SW Kenai Peninsula, from Soldotna and Nikiski south to Homer. * WHEN...Until 9 AM AKDT this morning. * IMPACTS...Hazardous driving conditions due to low visibility. * ADDITIONAL DETAILS...A band of locally dense fog has redeveloped along the western Kenai Peninsula coast. This band of fog has moved over the Sterling Highway from Soldotna and Kenai south to near Homer. The fog will likely persist through mid-morning Friday

* WHAT...Heat index values around 105 expected. * WHERE...DC and portions of central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * 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

* WHAT...Heat index values around 100 expected. * WHERE...Portions of north central Maryland, northwest and western Virginia, and the Eastern Panhandle of West Virginia. * 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

At 653 AM CDT, Doppler radar was tracking a strong thunderstorm 9 miles northeast of Edmonton, moving east at 30 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... Columbia, Pickett, Portland, Absher, Mount Gilead, Haskingsville, Bliss, Coburg, Fry, and Keltner. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to

* WHAT...Visibility of a quarter-mile or less in dense fog. * WHERE...Coastal Washington County. * WHEN...Until 9 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.

At 643 AM CDT, Doppler radar indicated strong thunderstorms along a line extending from 9 miles north of Boswell to 5 miles northwest of Arthur City to 2 miles southeast of Raymond Gary State Park. Movement was southeast at 10 mph. HAZARD...Wind gusts up to 40 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... Hugo... Antlers... Fort Towson... Sawyer...

At 612 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from 7 miles west of Gillham to 14 miles north of Manchester, or extending from 11 miles northwest of De Queen to 30 miles north of Clarksville, moving south at 15 mph. HAZARD...Wind gusts up to 50 mph and half inch size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...

At 712 AM EDT, Doppler radar was tracking a strong thunderstorm near Taylorsville, moving east at 40 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... Taylorsville, Wakefield, Yoder, Sinai, Wayside, Southville, Rivals, Gee, Anderson City, and Glensboro. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to

At 558 AM CDT, Doppler radar indicated strong thunderstorms along a line extending from near Antlers to 7 miles northeast of Fort Towson. Movement was southeast at 25 mph. HAZARD...Wind gusts up to 40 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... Hugo... Antlers... Fort Towson... Sawyer... Rattan... Snow...