* 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 15 kt with gusts up to 20 kt. * WHERE. Tidal Potomac River from Key Bridge to Cobb Island MD. * WHEN. Until midnight EDT tonight. * IMPACTS. Conditions will be hazardous to small craft.

The threat for excessive heat has ended.

The threat for excessive heat has ended.

SMWLWX The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for. Chesapeake Bay north of Pooles Island MD. * Until 900 PM EDT. * At 827 PM EDT, a severe thunderstorm was located near Turkey Point, moving east at 30 knots. HAZARD. Wind gusts in excess of 48 knots. SOURCE. Radar indicated. IMPACT. Boaters could easily be thrown overboard by suddenly higher wind and waves capsizing their vessel. Boats could suffer significant damage in high winds. * Locations impacted include. Turkey Point, Spesutie Island, and Aberdeen Proving Ground.

* WHAT. For the first Small Craft Advisory, southwest winds 10 to 15 kt with gusts up to 20 kt. For the second Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 20 kt expected. * WHERE. Tidal Potomac River from Key Bridge to Cobb Island MD. * WHEN. For the first Small Craft Advisory, until midnight EDT tonight. For the second Small Craft Advisory, from 6 AM to 6 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* 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.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 449 IN EFFECT UNTIL 10 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN PENNSYLVANIA THIS WATCH INCLUDES 33 COUNTIES IN CENTRAL PENNSYLVANIA ADAMS BEDFORD BLAIR CAMBRIA CAMERON CENTRE CLEARFIELD CLINTON COLUMBIA CUMBERLAND DAUPHIN ELK FRANKLIN FULTON HUNTINGDON JUNIATA LANCASTER LEBANON LYCOMING MCKEAN MIFFLIN MONTOUR NORTHUMBERLAND PERRY POTTER SCHUYLKILL SNYDER SOMERSET SULLIVAN TIOGA UNION WARREN YORK THIS INCLUDES THE CITIES OF ALTOONA, BEDFORD, BERWICK, BLOOMSBURG, BRADFORD, CARLISLE, CHAMBERSBURG, CLEARFIELD, COUDERSPORT, DANVILLE, DUBOIS, EMPORIUM, GETTYSBURG, HARRISBURG, HERSHEY, HUNTINGDON, JOHNSTOWN, LANCASTER, LAPORTE, LEBANON, LEWISBURG, LEWISTOWN, LOCK HAVEN, MANSFIELD, MCCONNELLSBURG, MIFFLINTOWN, MOUNT UNION, NEWPORT, POTTSVILLE, RENOVO, RIDGWAY, SELINSGROVE, SHAMOKIN, SOMERSET, ST. MARYS, STATE COLLEGE, SUNBURY, WARREN, WAYNESBORO, WELLSBORO, WILLIAMSPORT, AND YORK.

SEVERE THUNDERSTORM WATCH 449 REMAINS VALID UNTIL 10 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN PENNSYLVANIA THIS WATCH INCLUDES 30 COUNTIES IN CENTRAL PENNSYLVANIA ADAMS BEDFORD BLAIR CAMBRIA CAMERON CENTRE CLEARFIELD CLINTON COLUMBIA CUMBERLAND DAUPHIN ELK FRANKLIN FULTON HUNTINGDON JUNIATA LANCASTER LEBANON LYCOMING MIFFLIN MONTOUR NORTHUMBERLAND PERRY SCHUYLKILL SNYDER SOMERSET SULLIVAN TIOGA UNION YORK THIS INCLUDES THE CITIES OF ALTOONA, BEDFORD, BERWICK, BLOOMSBURG, CARLISLE, CHAMBERSBURG, CLEARFIELD, DANVILLE, DUBOIS, EMPORIUM, GETTYSBURG, HARRISBURG, HERSHEY, HUNTINGDON, JOHNSTOWN, LANCASTER, LAPORTE, LEBANON, LEWISBURG, LEWISTOWN, LOCK HAVEN, MANSFIELD, MCCONNELLSBURG, MIFFLINTOWN, MOUNT UNION, NEWPORT, POTTSVILLE, RENOVO, RIDGWAY, SELINSGROVE, SHAMOKIN, SOMERSET, ST. MARYS, STATE COLLEGE, SUNBURY, WAYNESBORO, WELLSBORO, WILLIAMSPORT, AND YORK.

SEVERE THUNDERSTORM WATCH 449 REMAINS VALID UNTIL 10 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN PENNSYLVANIA THIS WATCH INCLUDES 27 COUNTIES IN CENTRAL PENNSYLVANIA ADAMS BEDFORD BLAIR CAMBRIA CENTRE CLEARFIELD CLINTON COLUMBIA CUMBERLAND DAUPHIN FRANKLIN FULTON HUNTINGDON JUNIATA LANCASTER LEBANON LYCOMING MIFFLIN MONTOUR NORTHUMBERLAND PERRY SCHUYLKILL SNYDER SOMERSET SULLIVAN UNION YORK THIS INCLUDES THE CITIES OF ALTOONA, BEDFORD, BERWICK, BLOOMSBURG, CARLISLE, CHAMBERSBURG, CLEARFIELD, DANVILLE, DUBOIS, GETTYSBURG, HARRISBURG, HERSHEY, HUNTINGDON, JOHNSTOWN, LANCASTER, LAPORTE, LEBANON, LEWISBURG, LEWISTOWN, LOCK HAVEN, MCCONNELLSBURG, MIFFLINTOWN, MOUNT UNION, NEWPORT, POTTSVILLE, RENOVO, SELINSGROVE, SHAMOKIN, SOMERSET, STATE COLLEGE, SUNBURY, WAYNESBORO, WILLIAMSPORT, AND YORK.