* WHAT. Heat index values up to 102 expected. * WHERE. Western Monmouth, Middlesex, and Somerset Counties. * WHEN. From 11 AM this morning to 7 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 103 expected. * WHERE. Portions of northern Delaware, central and southern New Jersey, and southeast Pennsylvania. * WHEN. From 11 AM this morning to 7 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. South to southwest winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 5 ft. * WHERE. Portions of Atlantic coastal waters. * WHEN. Until 7 PM EDT this evening. * IMPACTS. Conditions will be hazardous to small craft.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 489 IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM

* WHAT. Southwest winds 10 to 20 kt with gusts up to 25 kt and seas 4 to 5 feet. * WHERE. Sandy Hook NJ to Montauk Point NY out 20 nm. * WHEN. Until midnight EDT tonight. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Dangerous rip currents. * WHERE. Kings (Brooklyn), Southwest Suffolk, Southeast Suffolk, Southern Queens and Southern Nassau Counties. * WHEN. Through this evening. * IMPACTS. Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.

At 400 PM EDT, Doppler radar was tracking a strong thunderstorm over Whitestone, or over Flushing, moving east at 35 mph. HAZARD. Wind gusts up to 40 mph and pea size hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to outdoor objects is possible. Locations impacted include. Islip, Jamaica, Flushing, Brentwood, Mott Haven, Levittown, East Tremont, Commack, Huntington Station, Deer Park, Lindenhurst, Glen Cove, Plainview, Garden City, and Hauppauge.

The areas affected include. Moriches Inlet to Montauk Point NY out 20 NM. Long Island Sound. Peconic and Gardiners Bays. Long Island South Shore Bays. At 358 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from near Block Island to near Norwalk Islands, moving southeast at 20 knots.

* WHAT. Dangerous rip currents. * WHERE. Kings (Brooklyn), Southwest Suffolk, Southeast Suffolk, Southern Queens and Southern Nassau Counties. * WHEN. Until 9 PM EDT this evening. * IMPACTS. Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.

* WHAT. Southwest winds 10 to 15 kt with gusts up to 25 kt and seas 3 to 5 feet. * WHERE. Sandy Hook NJ to Montauk Point NY out 20 nm. * WHEN. Until midnight EDT tonight. * IMPACTS. Conditions will be hazardous to small craft.

SMWOKX The National Weather Service in Upton NY has issued a * Special Marine Warning for. Long Island Sound West of New Haven CT / Port Jefferson NY. New York Harbor. * Until 430 PM EDT. * At 336 PM EDT, strong thunderstorms were located along a line extending from 8 nm northwest of Mamaroneck Harbor to 9 nm northwest of Upper New York Harbor, moving southeast at 45 knots. HAZARD. Wind gusts 34 knots or greater and small hail. SOURCE. Radar indicated. IMPACT. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will be near. Eastchester Bay and Mamaroneck Harbor around 340 PM EDT. Execution Rocks, Hempstead Harbor, Little Neck Bay, Manhasset Bay, and Upper New York Harbor around 345 PM EDT. Saddle Rock around 350 PM EDT.

SEVERE THUNDERSTORM WATCH 489 REMAINS VALID UNTIL 7 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM

* WHAT. North winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 ft expected. * WHERE. Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm and Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm. * WHEN. From 5 AM to 1 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Heat index values up to 100. * WHERE. Western Monmouth, Middlesex, and Somerset Counties. * WHEN. Until 7 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 97. * WHERE. Portions of northern Delaware, central and southern New Jersey, and southeast Pennsylvania. * WHEN. Until 7 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 489 IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY TO THE MOUTH OF THE CONNECTICUT RIVER LONG ISLAND SOUND EAST OF THE MOUTH OF THE CONNECTICUT RIVER LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY NEW YORK HARBOR PECONIC AND GARDINERS BAYS SOUTH SHORE BAYS FROM JONES INLET THROUGH SHINNECOCK BAY MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 489 IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN DELAWARE THIS WATCH INCLUDES 1 COUNTY IN NORTHERN DELAWARE NEW CASTLE IN NEW JERSEY THIS WATCH INCLUDES 13 COUNTIES IN CENTRAL NEW JERSEY MERCER MONMOUTH IN NORTHERN NEW JERSEY HUNTERDON MIDDLESEX MORRIS SOMERSET SUSSEX WARREN IN SOUTHERN NEW JERSEY BURLINGTON CAMDEN GLOUCESTER OCEAN SALEM IN PENNSYLVANIA THIS WATCH INCLUDES 10 COUNTIES IN EAST CENTRAL PENNSYLVANIA BERKS LEHIGH NORTHAMPTON IN NORTHEAST PENNSYLVANIA CARBON MONROE IN SOUTHEAST PENNSYLVANIA BUCKS CHESTER DELAWARE MONTGOMERY PHILADELPHIA THIS INCLUDES THE CITIES OF ALLENTOWN, BETHLEHEM, BLAIRSTOWN, CAMDEN, CHERRY HILL, DEPTFORD, DOYLESTOWN, EAST BRUNSWICK, EASTON, EDISON, FLEMINGTON, FREEHOLD, GLASSBORO, JIM THORPE, MEDIA, MOORESTOWN, MORRISTOWN, MOUNT HOLLY, NEW BRUNSWICK, NEWTON, NORRISTOWN, NORTH BRUNSWICK TOWNSHIP, PENNSVILLE, PERTH AMBOY, PHILADELPHIA, READING, SAYREVILLE, SOMERSET, STROUDSBURG, TOMS RIVER, TRENTON, WEST CHESTER, AND WILMINGTON.

SVRPHI The National Weather Service in Mount Holly NJ has issued a * Severe Thunderstorm Warning for. Northeastern Hunterdon County in northwestern New Jersey. Southern Morris County in northern New Jersey. Northern Somerset County in northern New Jersey. Northeastern Middlesex County in northern New Jersey. * Until 445 PM EDT. * At 410 PM EDT, a severe thunderstorm was located over Far Hills, or 9 miles north of Somerville, moving east at 45 mph. HAZARD. 60 mph wind gusts and penny size hail. SOURCE. Radar indicated. IMPACT. Damage to roofs, siding, trees, and power lines is possible. * Locations impacted include. Perth Amboy, Morristown, Somerville, Somerset, Edison, Bridgewater, Carteret, Madison, Middlesex, Florham Park, East Hanover, Bound Brook, Manville, Hackettstown, Chatham, Morris Plains, Mendham, High Bridge, Clinton, and Peapack And Gladstone. This includes the following highways. New Jersey Turnpike between exits 11 and 12. Interstate 78 in New Jersey between mile markers 13 and 43. Interstate 287 in New Jersey between mile markers 0 and 39. Garden State Parkway between mile markers 126 and 133.

SEVERE THUNDERSTORM WATCH 489 REMAINS VALID UNTIL 7 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN DELAWARE THIS WATCH INCLUDES 1 COUNTY IN NORTHERN DELAWARE NEW CASTLE IN NEW JERSEY THIS WATCH INCLUDES 13 COUNTIES IN CENTRAL NEW JERSEY MERCER MONMOUTH IN NORTHERN NEW JERSEY HUNTERDON MIDDLESEX MORRIS SOMERSET SUSSEX WARREN IN SOUTHERN NEW JERSEY BURLINGTON CAMDEN GLOUCESTER OCEAN SALEM IN PENNSYLVANIA THIS WATCH INCLUDES 10 COUNTIES IN EAST CENTRAL PENNSYLVANIA BERKS LEHIGH NORTHAMPTON IN NORTHEAST PENNSYLVANIA CARBON MONROE IN SOUTHEAST PENNSYLVANIA BUCKS CHESTER DELAWARE MONTGOMERY PHILADELPHIA THIS INCLUDES THE CITIES OF ALLENTOWN, BETHLEHEM, BLAIRSTOWN, CAMDEN, CHERRY HILL, DEPTFORD, DOYLESTOWN, EAST BRUNSWICK, EASTON, EDISON, FLEMINGTON, FREEHOLD, GLASSBORO, JIM THORPE, MEDIA, MOORESTOWN, MORRISTOWN, MOUNT HOLLY, NEW BRUNSWICK, NEWTON, NORRISTOWN, NORTH BRUNSWICK TOWNSHIP, PENNSVILLE, PERTH AMBOY, PHILADELPHIA, READING, SAYREVILLE, SOMERSET, STROUDSBURG, TOMS RIVER, TRENTON, WEST CHESTER, AND WILMINGTON.

* WHAT. Urban and small stream flooding caused by excessive rainfall is expected. * WHERE. Portions of southern Connecticut, including the following counties, Fairfield, Middlesex, New Haven and New London, northeast New Jersey, including the following counties, Bergen and Passaic, and southeast New York, including the following counties, Orange, Rockland and Westchester. * WHEN. Until 600 PM EDT. * IMPACTS. Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS. - At 258 PM EDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. - Some locations that will experience flooding include. Bridgeport, New Haven, Stamford, Norwalk, White Plains, Milford, Wallingford, Norwich, Shelton, New City, New London, West Milford, Ossining, Guilford, New Canaan, Monsey, Nanuet, Ramsey, Clinton and Ringwood. - http://www.weather.gov/safety/flood

FFWOKX The National Weather Service in Upton has issued a * Flash Flood Warning for. Central Fairfield County in southern Connecticut. Central New Haven County in southern Connecticut. Putnam County in southeastern New York. Northern Westchester County in southeastern New York. * Until 545 PM EDT. * At 241 PM EDT, local law enforcement reported thunderstorms producing heavy rain across the warned area. Between 1.5 and 2.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD. Flash flooding caused by thunderstorms. SOURCE. Law enforcement reported. IMPACT. Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include. New Haven, Waterbury, Danbury, Meriden, Middletown, Wallingford, Shelton, Naugatuck, Peekskill, Guilford, Southbury, Mahopac, Lake Carmel, Durham, Sherman, Brewster, Cold Spring, Newtown, Hamden and Cheshire.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 489 IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN CONNECTICUT THIS WATCH INCLUDES 4 COUNTIES IN SOUTHERN CONNECTICUT FAIRFIELD MIDDLESEX NEW HAVEN NEW LONDON IN NEW JERSEY THIS WATCH INCLUDES 5 COUNTIES IN NORTHEAST NEW JERSEY BERGEN ESSEX HUDSON PASSAIC UNION IN NEW YORK THIS WATCH INCLUDES 11 COUNTIES IN SOUTHEAST NEW YORK BRONX KINGS (BROOKLYN) NASSAU NEW YORK (MANHATTAN) ORANGE PUTNAM QUEENS RICHMOND (STATEN ISLAND) ROCKLAND SUFFOLK WESTCHESTER