A powerful coastal storm impacted the region Friday through Sunday with North to Northeast Gale to Storm force winds. This resulted in several tidal cycle of minor to moderate coastal flooding Friday morning through Sunday morning, with the most widespread moderate to locally major impacts occurring with the Saturday Night high tidal cycle. In addition, prolonged high surf from energetic easterly swells during this time period resulted in widespread areas of dune erosion and localized washovers along the Atlantic Ocean beachfront.

Coastal Flood in SOUTHERN NASSAU, NEW YORK
From 03-MAR-18 09:00:00 to 03-MAR-18 11:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Hudson Bay at Freeport recorded a peak water level of 6.5 ft. MLLW at 930 am EST. The moderate coastal flood threshold of 6.2 ft. MLLW was exceeded from 918 to 1018 am EST. The USGS tidal gauge in Reynolds Channel recorded a peak water level of 6.8 ft. MLLW at 930 am EST. The moderate coastal flood threshold of 6.8 ft. MLLW was touched from 912 to 942 am EST.

Coastal Flood in SOUTHERN QUEENS, NEW YORK
From 03-MAR-18 21:00:00 to 03-MAR-18 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Jamaica Bay at Inwood recorded a peak water level of 8.6 ft. MLLW at 1000 pm EST. The moderate coastal flood threshold of 8.2 ft. MLLW was exceeded from 912 to 1048 pm EST. The USGS tidal gauge in Rockaway Inlet recorded a peak water level of 8.3 ft. MLLW at 948 pm EST. The moderate coastal flood threshold of 8.3 ft. MLLW was touched from 930 to 1006 pm EST.

Coastal Flood in SOUTHERN QUEENS, NEW YORK
From 02-MAR-18 07:00:00 to 02-MAR-18 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Jamaica Bay at Inwood recorded a peak water level of 8.4 ft. MLLW at 806 am EST. The moderate coastal flood threshold of 8.2 ft. MLLW was touched from 736 to 836 am EST.

Coastal Flood in NORTHWEST SUFFOLK, NEW YORK
From 02-MAR-18 10:00:00 to 02-MAR-18 13:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Old Field recorded a peak water level of 11.1 ft. MLLW at 1136 am EST. The moderate coastal flood threshold of 10.2 ft. MLLW was exceeded from 1048am-1248pm EST. 3 to 5 ft wave action resulted in moderate coastal impacts during the Friday afternoon high tide.

Coastal Flood in SOUTHEAST SUFFOLK, NEW YORK
From 02-MAR-18 10:00:00 to 02-MAR-18 13:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Riverhead recorded a peak water level of 6.8 ft. MLLW at 1218 pm EST. The moderate coastal flood threshold of 6.3 ft. MLLW was exceeded from 1054am-100pm EST.

Coastal Flood in SOUTHEAST SUFFOLK, NEW YORK
From 03-MAR-18 20:00:00 to 03-MAR-18 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Shinnecock Bay recorded a peak water level of 6.0 ft. MLLW at 912 pm EST. The moderate coastal flood threshold of 5.9 ft. MLLW was exceeded from 836pm-1006pm EST.

Coastal Flood in NORTHERN NASSAU, NEW YORK
From 02-MAR-18 11:00:00 to 02-MAR-18 13:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Glen Cove recorded a peak water level of 11.0 ft. MLLW at 1200 pm EST. This was 1 tenth of a foot shy of the moderate coastal flood threshold of 11.1 ft. MLLW. The NOS tidal gauge at King Point recorded a peak water level of 11.1 ft. MLLW at 1224 pm EST. This exceeded the moderate coastal flood threshold of 10.5 ft. MLLW between 10am to 106 pm. EST. 3 to 5 ft wave action resulted in locally moderate coastal impacts across vulnerable Northern Nassau county shoreline locales during the Friday afternoon high tide.

Coastal Flood in SOUTHERN NASSAU, NEW YORK
From 03-MAR-18 20:00:00 to 04-MAR-18 00:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Hudson Bay at Freeport recorded a peak water level of 7.0 ft. MLLW at 954 pm EST. The moderate coastal flood threshold of 6.2 ft. MLLW was exceeded from 812 to 1106 pm EST, and the major coastal flood threshold of 6.9 ft MLLW was exceeded from 912 to 1012 pm EST. The USGS tidal gauge in Reynolds Channel recorded a peak water level of 7.2 ft. MLLW at 942 pm EST. The moderate coastal flood threshold of 6.8 ft. MLLW was exceeded from 830 to 1036 pm EST. The USGS tidal gauge in East Rockaway recorded a peak water level of 7.3 ft. MLLW at 936 pm EST. The moderate coastal flood threshold of 7.0 ft. MLLW was exceeded from 842 to 1024 pm EST.

Coastal Flood in SOUTHWEST SUFFOLK, NEW YORK
From 03-MAR-18 22:00:00 to 04-MAR-18 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Lindenhurst recorded a peak water level of 3.9 ft. MLLW at 1142 pm EST. The moderate coastal flood threshold of 3.6 ft. MLLW was exceeded from 1018pm-106am EST. The USGS tidal gauge in West Sayville recorded a peak water level of 3.9 ft. MLLW at 1154 pm EST. The moderate coastal flood threshold of 3.5 ft. MLLW was exceeded from 1024pm-154am EST. The USGS tidal gauge in Watch Hill Fire Island recorded a peak water level of 3.8 ft. MLLW at 12 am EST. The moderate coastal flood threshold of 3.6 ft. MLLW was exceeded from 1042pm-118am EST.

Coastal Flood in NORTHWEST SUFFOLK, NEW YORK
From 04-MAR-18 00:00:00 to 04-MAR-18 01:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Old Field recorded a peak water level of 10.2 ft. MLLW at 1248 am EST. The moderate coastal flood threshold of 10.2 ft. MLLW was touched at that time.

Coastal Flood in SOUTHERN NASSAU, NEW YORK
From 04-MAR-18 08:00:00 to 04-MAR-18 11:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Hudson Bay at Freeport recorded a peak water level of 6.7 ft. MLLW at 1006 am EST. The moderate coastal flood threshold of 6.2 ft. MLLW was exceeded from 842 to 1100 am EST. The USGS tidal gauge in Reynolds Channel recorded a peak water level of 6.9 ft. MLLW at 948 am EST. The moderate coastal flood threshold of 6.8 ft. MLLW was exceeded from 924 to 1018 am EST. The USGS tidal gauge in East Rockaway recorded a peak water level of 7.0 ft. MLLW at 1006 am EST. The moderate coastal flood threshold of 7.0 ft. MLLW was touched from 954 to 1012 am EST.

Coastal Flood in SOUTHWEST SUFFOLK, NEW YORK
From 04-MAR-18 10:00:00 to 04-MAR-18 14:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Lindenhurst recorded a peak water level of 3.8 ft. MLLW at 1142 am EST. The moderate coastal flood threshold of 3.6 ft. MLLW was exceeded from 1042am-1242am EST. The USGS tidal gauge in West Sayville recorded a peak water level of 3.7 ft. MLLW at 1206 pm EST. The moderate coastal flood threshold of 3.5 ft. MLLW was exceeded from 1048am-112pm EST. The USGS tidal gauge in Watch Hill Fire Island recorded a peak water level of 3.7 ft. MLLW at 1154 am EST. The moderate coastal flood threshold of 3.6 ft. MLLW was exceeded from 1106am-1236pm EST.

Coastal Flood in SOUTHERN NASSAU, NEW YORK
From 02-MAR-18 07:00:00 to 02-MAR-18 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The USGS tidal gauge in Hudson Bay at Freeport recorded a peak water level of 6.5 ft. MLLW at 800 am EST. The moderate coastal flood threshold of 6.2 ft. MLLW was exceeded from 706 to 854 am EST.