Station Name: LONG ISLAND - 30 NM South of Islip, NY
Station Type: Other
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet

Nearest Address:
Offshore
Islip, NY 11751
Suffolk County

GPS Coordinates: 40.251, -73.164

Nearby Water Temperatures

Severe Thunderstorm Watch issued May 20 at 2:11PM EDT until May 20 at 9:00PM EDT by NWS Upton NY

Effective: Wed May 20, 2026, 2:11 PM
Expires: Wed May 20, 2026, 9:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 235 IN EFFECT UNTIL 9 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

Severe Thunderstorm Watch issued May 20 at 7:47PM EDT until May 20 at 9:00PM EDT by NWS Upton NY

Effective: Wed May 20, 2026, 7:47 PM
Expires: Wed May 20, 2026, 9:00 PM

SEVERE THUNDERSTORM WATCH 235 REMAINS VALID UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN CONNECTICUT THIS WATCH INCLUDES 2 COUNTIES IN SOUTHERN CONNECTICUT MIDDLESEX NEW LONDON IN NEW YORK THIS WATCH INCLUDES 2 COUNTIES IN SOUTHEAST NEW YORK NASSAU SUFFOLK

Flood Advisory issued May 20 at 8:24PM EDT until May 20 at 9:30PM EDT by NWS Upton NY

Effective: Wed May 20, 2026, 8:24 PM
Expires: Wed May 20, 2026, 9:30 PM

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Portions of northeast New Jersey, including the following counties, Hudson and Union and southeast New York, including the following counties, Kings (Brooklyn), Nassau, New York (Manhattan), Queens and Richmond (Staten Island). * WHEN...Until 930 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 824 PM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 0.1 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Jersey City, Jamaica, Elizabeth, Flatbush, Bayonne, Freeport, Linden, Valley Stream, Long Beach, Coney Island, Garden City, Lynbrook, Woodmere, Rockaway Beach, Todt Hill, Crown Heights, Kennedy Airport, The Verrazano Narrows Bridge, Huguenot and Forest Hills. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads.

Special Weather Statement issued May 20 at 8:08PM EDT by NWS Upton NY

Effective: Wed May 20, 2026, 8:08 PM
Expires: Wed May 20, 2026, 8:45 PM

At 808 PM EDT, Doppler radar was tracking a cluster of strong thunderstorms over Commack, moving east at 35 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... Brentwood, Commack, Centereach, Medford, Hauppauge, Ronkonkoma, Huntington, Stony Brook, Port Jefferson, Northport, Coram, Dix Hills, Smithtown, Farmingville, and Mount Sinai.

If outdoors, consider seeking shelter inside a building. A Severe Thunderstorm Watch remains in effect until 900 PM EDT for southeastern New York.

Special Weather Statement issued May 20 at 8:03PM EDT by NWS Upton NY

Effective: Wed May 20, 2026, 8:03 PM
Expires: Wed May 20, 2026, 8:45 PM

At 803 PM EDT, Doppler radar was tracking a cluster of strong thunderstorms over Patchogue, moving northeast at 30 mph. HAZARD...Wind gusts up to 50 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... Shirley, Medford, Manorville, Patchogue, Middle Island, Wading River, Center Moriches, Westhampton, Holbrook, Sayville, Farmingville, Mastic, Mastic Beach, Calverton, and Yaphank.

If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to localized flooding. Do not drive your vehicle through flooded roadways. A Severe Thunderstorm Watch remains in effect until 900 PM EDT for southeastern New York.