Moderate

* WHAT...For the Heat Advisory, heat index values up to 107. * WHERE...District of Columbia, central, northeast, northern, and southern Maryland, and central and northern Virginia. * WHEN...From 11 AM to 8 PM EDT Friday. * 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 828 PM EDT, Doppler radar was tracking strong gusty winds ahead of showers and thunderstorms along a line extending from near Ephrata to 11 miles southeast of Parkville. Movement was east at 30 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... Lancaster, Ephrata, Columbia, Lititz, Millersville, Willow Street, Red Lion, New Holland, Spry, East Petersburg, Dallastown, Akron,

At 730 PM CDT, Doppler radar indicated strong thunderstorms along a line extending from 6 miles northwest of White Oak to 3 miles northeast of Vera. Movement was east at 25 mph. HAZARD...Wind gusts up to 50 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations in or near the path include... Chelsea... Oologah...

At 833 PM EDT, Doppler radar was tracking a strong thunderstorm over Lehighton, moving northeast at 55 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Pottsville, Tamaqua, Schuylkill Haven, St. Clair, Orwigsburg, Port Carbon, Tuscarora, New Philadelphia, Friedensburg, Renningers, McKeansburg, Coaldale, Snyders, Lake Wynonah, Cressona, Palo Alto,

At 834 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Saint Charles to near Potomac Creek to 10 miles east of Orange. Movement was east at 45 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small trees and blow around unsecured objects. Wind impacting handling of high profile vehicles. Strong thunderstorms will be near... Colonial Beach and Port Royal around 855 PM EDT. Fort Walker around 905 PM EDT.

At 736 PM CDT, Doppler radar indicated a strong thunderstorm over Drumright, moving east at 15 mph. HAZARD...Wind gusts up to 50 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations in or near the path include... Drumright... Shamrock... If outdoors, consider seeking shelter inside a building. A Severe Thunderstorm Watch remains in effect until 900 PM CDT for

At 706 PM CDT, Doppler radar indicated a strong thunderstorm 6 miles west of Watova, moving east at 20 mph. HAZARD...Wind gusts up to 40 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations in or near the path include... Nowata... Talala... Watova... If outdoors, consider seeking shelter inside a building.

* WHAT...Strong longshore currents in the surf zone. * WHERE...The beaches from Cape Hatteras to Surf City. * WHEN...From 8 AM EDT Friday through Friday evening. * IMPACTS...Strong longshore currents will create dangerous swimming conditions. Strong longshore currents can sweep swimmers and surfers into rip currents, piers, jetties and other hazardous areas. In many cases, the longshore current is strong enough to prevent swimmers from being able to keep their feet on the bottom making it difficult to return to shore.

At 713 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 15 miles east of Cleveland to near Elkhart Lake. Movement was northeast 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... Sheboygan, Plymouth, Sheboygan Falls, Howards Grove, Oostburg, Kohler, Cedar Grove, Random Lake, Cascade, Adell, Waldo, Haven,

At 649 PM CDT, Doppler radar was tracking a line of showers extending from 7 miles southeast of Merrill to 5 miles south of Lake Wazeecha, or extending from 9 miles north of Wausau to 8 miles southeast of Wisconsin Rapids, moving east at 25 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. The shower will be near... Wausau, Rib Mountain, Mosinee, Lake Wazeecha and Wisconsin Rapids