New York - United States   2026-09-13   Sunday   40.88N, -73.16W

St. James

New York - United States
2026-09-13

Flood Advisory issued September 13 at 11:14AM EDT until September 13 at 2:15PM EDT by NWS Upton NY

Issue date: 2026-09-13T15:14+00:00

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Western Suffolk County in southeastern New York... * WHEN...Until 215 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1114 AM EDT, Doppler radar and automated rain gauges indicated heavy rain. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.5 and 1.5 inches of rain have fallen. - Additional rainfall amounts of 1 to 1.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Riverhead, Centereach, Shirley, Medford, Hauppauge, Ronkonkoma, Manorville, Stony Brook, Patchogue, Middle Island, Port Jefferson, Wading River, Center Moriches, Mattituck, Southampton, Westhampton, Coram, Holbrook, Smithtown and Sayville. - http://www.weather.gov/safety/flood

Flood Watch issued September 13 at 2:07AM EDT until September 13 at 2:00PM EDT by NWS Upton NY

Issue date: 2026-09-13T06:07+00:00

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of southern Connecticut, including the following areas, Northern Middlesex, Northern New London, Southern Fairfield, Southern Middlesex, Southern New Haven and Southern New London and southeast New York, including the following areas, Northeast Suffolk, Northern Nassau, Northwest Suffolk, Southeast Suffolk, Southern Nassau and Southwest Suffolk. * WHEN...From 6 AM this morning to 2 PM EDT this afternoon. * IMPACTS...Excessive runoff may result in flooding in poor drainage areas, rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Showers with heavy downpours and a few thunderstorms early Sunday morning into midday Sunday may lead to flooding. Average rainfall amounts are forecast to range from 1.5 to 2.5 inches with locally higher amounts of 3 to 5 inches possible. Peak hourly rates could reach 2 to 2.5 inches. - http://www.weather.gov/safety/flood