Flash Flood Watch Issued For Long Island

A flash flood watch has been issued for Long Island with heavy rain on the way, the National Weather Service says. The watch will be in effect from 6 p.m. Friday until 6 a.m. Saturday.

Rain will begin falling Friday afternoon and it will pick up in intensity after sunset, which is depressingly at 4:43 p.m.

The heaviest rain, along with a chance of thunderstorms, is expected between 7 p.m. and midnight. The rain will taper off during the overnight hours.

Rainfall amounts will generally average between 1 and 2 inches, however locally higher amounts will be possible.

The combination of heavy rainfall and leaf clogged drainages will pose a threat for flash flooding across the island, the NWS says. Across low-lying coastal areas, rising tides Friday evening will pose an enhanced threat for flash flooding.

The full forecast:

Friday- Rain likely, mainly after 3pm. Mostly cloudy, with a high near 55. East wind 10 to 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night- Rain and possibly a thunderstorm before midnight, then rain likely. Low around 45. Breezy, with an east wind 13 to 20 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Saturday- Mostly sunny, with a high near 49. Breezy, with a west wind 16 to 23 mph, with gusts as high as 39 mph.

Saturday Night- Mostly clear, with a low around 31. Northwest wind 11 to 15 mph.

Sunday- Sunny, with a high near 46. Northwest wind 11 to 13 mph.

Sunday Night- Mostly clear, with a low around 31.

Monday- Partly sunny, with a high near 51.

Monday Night- Rain likely, mainly after midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.

Tuesday- Rain. High near 58. Chance of precipitation is 80%.

Tuesday Night- A 50 percent chance of showers. Mostly cloudy, with a low around 37.

NWS image