A Nor'easter developed off the Delmarva peninsula which produced an extended period of heavy rainfall across the area as it tracked very slowly to the northeast. This caused widespread flooding across portions of southeast New York.

Flood in ROCKLAND, NEW YORK
From 13-MAR-10 10:30:00 to 15-MAR-10 13:15:00 (EST-5)
Location: TALLMAN
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Mahwah River at Suffern exceeded bankfull and crested at 7.06 ft. on March 14 at 0215 EST.  Several other rivers and small streams across the county also rose out of their banks causing flooding.  The Ramapo River at Ramapo also rose out of its banks causing Route 17 to be closed in Sloatsburg and Hillsburn.  The flooding was so severe that firefighters had to rescue a driver trapped in a car at the entrance to I-87.  The New York State Thruway, I-87, was also closed from exit 15A to the Orange County line.
The storm total rainfall amount received from Nanuet was 4.18 inches.

Flood in ORANGE, NEW YORK
From 14-MAR-10 12:08:00 to 15-MAR-10 10:00:00 (EST-5)
Location: CENTRAL VLY
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

East Village Road Bridge was closed in Tuxedo due to high water and flooding from the Ramapo River which runs beneath it.  Many homes and buildings were inundated with water from the river and a water rescue was performed by the Tuxedo Fire Department on Route 17 near the Duck Cedar Plaza after a resident drove into the flooded road.  The New York State Thruway, I-87, was closed in both directions from the Rockland County line to exit 16, Monroe.
Total rainfall amounts ranged from 2.16 inches in Westtown to 6.20 inches in Harriman.

Flood in ORANGE, NEW YORK
From 13-MAR-10 10:00:00 to 15-MAR-10 00:00:00 (EST-5)
Location: GREENWOOD LAKE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Route 17A in Greenwood Lake was closed due to flooding.  Many homes were also flooded across town.

Flood in ORANGE, NEW YORK
From 13-MAR-10 12:00:00 to 15-MAR-10 09:00:00 (EST-5)
Location: BLOOMING GROVE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Moodna Creek and other small streams exceeding bankfull in Washingtonville caused numerous houses to be inundated with water.

Heavy Rain in NEW YORK, NEW YORK
From 13-MAR-10 00:00:00 to 14-MAR-10 00:00:00 (EST-5)
Location: CENTRAL PARK
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Central Park Automated Surface Observing System recorded 3.84 inches of rainfall on March 13.  This was the greatest 24-hour rainfall total for March 2010.

Flood in NASSAU, NEW YORK
From 13-MAR-10 09:30:00 to 13-MAR-10 21:00:00 (EST-5)
Location: LOCUST VLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Feeks Ln. and Cleft Rd. were flooded and impassible with approximately 2 ft. of water covering the road from Mill Neck Creek flowing into Beaver Pond.

Flood in NASSAU, NEW YORK
From 13-MAR-10 10:30:00 to 13-MAR-10 21:00:00 (EST-5)
Location: GLEN COVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Glen Cove High School was evacuated due to flooding.  Several roads were closed in Bayville due to flooding.  Some residents also had basement flooding.
Total rainfall amounts received ranged from 2.92 inches in Malverne to 5.31 inches in East Meadow.

Flood in WESTCHESTER, NEW YORK
From 13-MAR-10 22:30:00 to 15-MAR-10 16:45:00 (EST-5)
Location: FLEETWOOD
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

The Hutchinson River Pkwy. was closed in both directions at Exit 12 due to flooding.
Total rainfall amounts received across the county ranged from 3.09 inches in White Plains to 4.50 inches in Ossining.

Heavy Rain in QUEENS, NEW YORK
From 13-MAR-10 00:00:00 to 14-MAR-10 00:00:00 (EST-5)
Location: FOREST HILLS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Automated Surface Observing System at LaGuardia Airport recorded 3.16 inches of rainfall on March 13.  This was the greatest 24-hour rainfall total for March 2010.