* WHAT. Southwest winds 10 to 20 kt with gusts up to 25 kt. * WHERE. Chesapeake Bay and adjoining estuaries north of Smith Point VA, and Tidal Potomac from Cobb Island MD to Smith Point VA. * WHEN. Until 6 AM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 20 kt with gusts up to 25 kt. * WHERE. Chesapeake Bay and adjoining estuaries north of Smith Point VA, and Tidal Potomac from Cobb Island MD to Smith Point VA. * WHEN. Until 6 AM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 20 kt with gusts up to 25 kt. * WHERE. Chesapeake Bay and adjoining estuaries north of Smith Point VA, and Tidal Potomac from Cobb Island MD to Smith Point VA. * WHEN. Until 6 AM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Heat index values up to 107 expected. * WHERE. Portions of central, north central, northeast, northern and southern Maryland, The District of Columbia and central, northern and northwest Virginia. * WHEN. Until 7 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses to occur.

SMWPHI The National Weather Service in Mount Holly NJ has issued a * Special Marine Warning for. Upper Delaware Bay. * Until 645 PM EDT. * At 552 PM EDT, a strong thunderstorm was located 8 nm northwest of Pea Patch Island, moving east at 30 knots. HAZARD. Wind gusts to 40 knots and small hail. SOURCE. Radar. IMPACT. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include. Pea Patch Island, Stony Point, and Reedy Point.

* WHAT. Dangerous rip currents. * WHERE. Atlantic Coastal Cape May, Coastal Atlantic and Coastal Ocean. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Rip currents can sweep even the best swimmers away from shore into deeper water.

* WHAT. Dangerously hot conditions with heat index values up to 110. * WHERE. Portions of northern Delaware, central, northern, northwest, and southern New Jersey, and southeast Pennsylvania. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. Heat index values up to 100. * WHERE. Portions of central and southern Delaware, northeast Maryland, and southern New Jersey. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Southwest winds 10 to 20 kt with gusts up to 25 kt and choppy waters expected. * WHERE. Delaware Bay waters south of East Point NJ to Slaughter Beach DE. * WHEN. Until 6 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft. * ADDITIONAL DETAILS. Thunderstorms with strong winds are possible this evening.

* WHAT. Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 ft. * WHERE. Portions of Atlantic coastal waters. * WHEN. Until 6 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft. * ADDITIONAL DETAILS. Thunderstorms with strong winds are possible this evening.

* WHAT. West winds 10 to 20 kt with gusts up to 25 kt. * WHERE. Chesapeake Bay and adjoining estuaries north of Smith Point VA, and Tidal Potomac from Cobb Island MD to Smith Point VA. * WHEN. Until 6 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Heat index values of 103 to 108 expected. * WHERE. In Maryland, Dorchester, Inland Worcester, Somerset, and Wicomico Counties. In Virginia, Northampton and Accomack Counties. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

The New Jersey Department of Environmental Protection has issued a code orange air quality alert Sunday for Salem and Cumberland Counties. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children. people suffering from asthma. heart disease or other lung diseases. and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles. visit http://www.state.nj.us/dep/

The New Jersey Department of Environmental Protection has issued a code orange air quality alert Sunday for Southwestern New Jersey. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children. people suffering from asthma. heart disease or other lung diseases. and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles. visit http://www.state.nj.us/dep/

SVRPHI The National Weather Service in Mount Holly NJ has issued a * Severe Thunderstorm Warning for. Northern New Castle County in northern Delaware. Salem County in southern New Jersey. Gloucester County in southern New Jersey. South central Philadelphia County in southeastern Pennsylvania. Southeastern Delaware County in southeastern Pennsylvania. * Until 645 PM EDT. * At 603 PM EDT, a severe thunderstorm was located over Wilmington Manor, or near Wilmington, moving east at 35 mph. HAZARD. 60 mph wind gusts. SOURCE. Radar indicated. IMPACT. Damage to roofs, siding, trees, and power lines is possible. * Locations impacted include. Philadelphia, Wilmington, Newark, Chester, Deptford, West Deptford, Glassboro, Pennsville, Bellmawr, Woodbury, Pitman, Clayton, Carneys Point, Elsmere, Paulsboro, New Castle, Penns Grove, Salem, Westville, and Woodstown. This includes the following highways. New Jersey Turnpike between exits 1 and 2. Interstate 95 in Pennsylvania between mile markers 0 and 1, between mile markers 11 and 12, and between mile markers 14 and 18. Interstate 95 in Delaware between mile markers 3 and 23. Interstate 76 in Pennsylvania near mile marker 351. Interstate 295 in New Jersey between mile markers 0 and 25.

At 615 PM EDT, a severe thunderstorm was located over Carneys Point, or near Wilmington, moving east at 35 mph. HAZARD. 60 mph wind gusts. SOURCE. Radar indicated. IMPACT. Damage to roofs, siding, trees, and power lines is possible. Locations impacted include. Philadelphia, Wilmington, Chester, Deptford, West Deptford, Glassboro, Pennsville, Woodbury, Pitman, Clayton, Carneys Point, Folcroft, Elsmere, Paulsboro, New Castle, Penns Grove, Salem, Westville, Woodstown, and Alloway. This includes the following highways. New Jersey Turnpike between exits 1 and 2. Interstate 95 in Pennsylvania between mile markers 0 and 1, between mile markers 11 and 12, and between mile markers 14 and 18. Interstate 95 in Delaware between mile markers 11 and 23. Interstate 76 in Pennsylvania near mile marker 351. Interstate 295 in New Jersey between mile markers 0 and 25.

THE NATIONAL WEATHER SERVICE HAS EXTENDED SEVERE THUNDERSTORM WATCH 449 TO INCLUDE THE FOLLOWING AREAS UNTIL 10 PM EDT THIS EVENING IN NEW JERSEY THIS WATCH INCLUDES 10 COUNTIES IN CENTRAL NEW JERSEY MONMOUTH IN NORTHERN NEW JERSEY MIDDLESEX IN SOUTHERN NEW JERSEY ATLANTIC BURLINGTON CAMDEN CAPE MAY CUMBERLAND GLOUCESTER OCEAN SALEM THIS INCLUDES THE CITIES OF ATLANTIC CITY, CAMDEN, CHERRY HILL, DEPTFORD, EAST BRUNSWICK, EDISON, FREEHOLD, GLASSBORO, HAMMONTON, MILLVILLE, MOORESTOWN, MOUNT HOLLY, NEW BRUNSWICK, NORTH BRUNSWICK TOWNSHIP, OCEAN CITY, PENNSVILLE, PERTH AMBOY, SAYREVILLE, AND TOMS RIVER.