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NWS Has a Coastal Flood Watch in Effect with Heavy Rain for Saturday Morning

Report by Paula Antolini
October 25, 2018, 10:10PM

 

NWS Has a Coastal Flood Watch in Effect with Heavy Rain for Saturday Morning

The National Weather Service has indicated widespread moderate coastal flooding possible Saturday morning into afternoon for Southern Fairfield, Southern New Haven, Southern Westchester, New York (Manhattan), Bronx, Northwestern Suffolk, Northern Queens and Northern Nassau.

Winds will diminish tonight as high pressure builds over the region. This will allow lows to fall below freezing across outlying areas and into the mid to upper 30s elsewhere.

High pressure will move offshore on Friday as a low begins to track northward along the U.S. east coast. Clouds will increase through the day on Friday, although any rainfall should hold off until Friday night. Rain will continue through the overnight hours, becoming heavy at times by Saturday morning.

In addition to the rain, winds will increase out of the east-northeast, with gusts of 40-50 mph during the day on Saturday. The strongest winds will be across Long Island and southern Connecticut.

Rain and wind will diminish Saturday evening as the low moves north of the area. Temperatures will remain below normal through the period, with highs in the 50s both Friday and Saturday.

 

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COASTAL FLOOD WATCH IN EFFECT SATURDAY AFTERNOON

The National Weather Service in New York, NY has issued a Coastal Flood Watch, which is in effect Saturday afternoon.

* LOCATIONS…Vulnerable locales along western Long Island Sound.

* TIDAL DEPARTURE…2 1/2 to 3 1/2 ft above astronomical tides.

* COASTAL FLOOD IMPACTS and TIMING…Widespread flooding of vulnerable areas near the waterfront and shoreline is possible during the times of high tide Saturday afternoon, resulting in 2 to 2 1/2 of inundation above ground level in low lying, vulnerable areas. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding will also extend inland from the waterfront along tidal rivers and bays. Additional minor coastal flooding is possible during the times of high tide Saturday Night and Sunday morning.

* SHORELINE IMPACTS and TIMING…Breaking waves of 3 to 4 ft along
north and east facing shorelines of Long Island Sound will result in beach flooding and erosion with localized splashover on shoreline properties and roads possible during times of high tide Saturday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Coastal Flood Watch means that conditions favorable for flooding are expected to develop. Coastal residents should be alert for later statements or warnings, and take action to protect property.

 

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Detailed Forecast

Overnight: Areas of frost after 3am. Otherwise, partly cloudy, with a low around 30. Light north wind.
Friday: Areas of frost before 10am. Otherwise, partly sunny, with a high near 51. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night: Rain, mainly after midnight. Low around 40. Light southeast wind becoming east 5 to 9 mph in the evening. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday: Rain. The rain could be heavy at times. High near 50. Breezy, with a northeast wind 16 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Saturday NightDrizzle or light rain likely, mainly before midnight. Cloudy, with a low around 44. Northeast wind 6 to 11 mph becoming light north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday: Mostly cloudy, with a high near 54.
Sunday Night: A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 41.
Monday: Rain likely, mainly before 3pm. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
Monday Night: Mostly cloudy, with a low around 38.
Tuesday: Mostly sunny, with a high near 51.
Tuesday Night: Partly cloudy, with a low around 35.
Wednesday: Mostly sunny, with a high near 53.
Wednesday Night: Partly cloudy, with a low around 42.
Thursday: A 30 percent chance of showers. Partly sunny, with a high near 59.

 

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