NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast (2024)

NYC weather forecast: When will the rain go away?

FOX 5 NY's Nick Gregory has your weather forecast.

NEW YORK CITY - Severe thunderstorms with heavy rain caused widespread flooding across the New York City area.

The storms are expected to bring 3' to 5' inches of rain, damaging winds and flash flooding.

Here's everything you need to know about today's potential for severe weather, including radar, outlooks, timing, impacts, flight delays, power outages, and the latest on Tropical Storm Debby.

JUMP TO: RADAR l OUTLOOK l TIMING l IMPACTS l DEBBY

***Click each headline to jump to the designated topic.

Weather in NYC today

NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast (1)

This graphic shows the flash flood threat on Tuesday, Aug. 6, 2024. (FOX Weather)

A flood watch is in effect for parts of the New York City area now through Wednesday morning. The National Weather Service also issued a severe thunderstorm watch for parts of New Jersey, New York and Pennsylvania until 11 p.m.

The New York City Emergency Management Department has also issued a travel advisory.

"Showers and storms will develop as the day goes on with the potential flooding especially later tonight and into tomorrow morning," FOX 5 NY's Mike Woods said in a post on X, formally Twitter.

NYC weather radar

Click HERE for more information.

Today's weather NYC: Outlooks

Much of New Jersey is under a slight risk for severe weather, while other parts of the Tri-State area, including NYC, are under a marginal risk.

Parts of central NJ have been placed in a Level 2 out of 5 risk on the NOAA's Storm Prediction Center's (SPC) 5-point severe thunderstorm risk scale.

NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast (2)

This graphic shows the severe weather threat on Tuesday, Aug. 6, 2024. (FOX Weather)

"In either one of those, you could see some stronger storms with heavy rain, gusty winds, small hail and, every once in a while, an isolated tornado," Woods said. "Just a little more likely for you in the yellow-shaded area."

Meanwhile, NYC is under a moderate risk for excessive rainfall, which means numerous flash floods are likely, according to the NWS.

NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast (3)

Excessive rainfall outlook. (NWS)

Weather NYC hourly today

The chances for rain should pick up as the night progresses.

"Kind of scattered at first in the afternoon and evening, and then it becomes heavier and more solid as we head through the later evening and into the overnight hours and even into tomorrow morning," Woods said.

Image 1 of 7

Impacts: How much will it rain in NYC?

The National Weather Service says local amounts of 3 to 5" of rainfall are possible "where numerous thunderstorms move over the same area."

NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast (4)

Storm total rainfall. (NWS)

"It's a decent stretch of fairly heavy rain that comes by," Woods said. "About 1 to 2 inches of rain wants to come through with this."

Rainfall rates are expected to be 1 to 2" an hour (Locally 3") this afternoon into early Wednesday morning. NOAA’s Weather Prediction Center (WPC) has placed NYC in a Level 3 out of 4 risk of flash flooding on Tuesday.

NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast (5)

This graphic shows the flood alerts in effect through Wednesday, Aug. 7, 2024 (FOX Weather)

"Scattered to numerous instances of flash flooding of urban & poor drainage areas and along quick responding rivers & streams are possible," the National Weather Service said.

The NWS says the flooding could be locally significant, "causing major disruptions to transportation."

Flight delays

There are currently ground stops at LaGuardia, JFK, and Newark Airport, according to the National Airspace System status.

NYC flight status

Check the status of each airport below:

LaGuardia Airport delays

  • For more information from the FAA, click HERE.

Newark Airportflight status

  • For more information from the FAA, click HERE.

JFK Airportflight status

  • For more information from the FAA, click HERE.

NJ Transit delays

"Rail service into and out of Penn Station New York is subject to up to 15-minute delays due to weather-related equipment availability issues," NJ Transit said in a post on X.

NJ Transit also said the Morris and Essex Line rail service is suspended in both directions between Dover and Summit due to weather-related loss of power to overhead wires.

River Line service is suspended in both directions between the Waterfront Entertainment Center and Walter Rand Transportation Center due to flooding conditions in Camden, NJ Transit said.

Power outages

According to Poweroutage.us, New Jersey currently has 10,917 customers without power as of 10 p.m.

In New York, Poweroutage.us says there are currently 3,059 customers without power as of 10 p.m.

Weather in New York tomorrow

Showers are likely and possibly a thunderstorm. Cloudy, with a high near 71. The chance of precipitation is 70%.

NYC weather this week

  • Wednesday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 71. The chance of precipitation is 70%.
  • Thursday: A 40% chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
  • Friday: Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 90%.

Saturday weather NYC: Tropical Storm Debby update

Remnants of Tropical Storm Debby could also bring additional heavy rain from Thursday into Saturday.

Through Sunday, several inches of rain could fall along the East Coast, with the highest totals centered near and along the Interstate 95 corridor from the mid-Atlantic to the Northeast.

NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast (6)

This graphic shows the forecast rain totals through Sunday, Aug. 11, 2024. (FOX Weather)

Widespread rainfall totals of 5-8 inches are expected, with locally higher amounts possible where the heaviest rain bands set up.

FOX Weather helped contribute to this report.

NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast (2024)

FAQs

NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast? ›

NYC area sees flooding: 3–5 inches of rain expected | Weather Forecast. NEW YORK CITY - Severe thunderstorms with heavy rain caused widespread flooding across the New York City area. The storms are expected to bring 3' to 5' inches of rain, damaging winds and flash flooding.

Can 3 inches of rain cause flooding? ›

Damaging flooding may happen with only a few inches of water, or it may cover a house to the rooftop. Floods can occur within minutes or over a long period, and may last days, weeks, or longer. Floods are the most common and widespread of all weather-related natural disasters.

How are floods forecasted? ›

The National Weather Service (an agency within NOAA) collects and interprets rainfall data throughout the United States and issues flood watches and warnings as appropriate. They use statistical models that incorporate USGS streamflow data to try to predict the results of expected storms.

What time of year is flooding a major problem? ›

Although floods can occur throughout the year, California's rainy season usually lasts from November to April. This is when the chance of heavy flooding and flash flood risks is greatest.

Why is NYC getting so much rain? ›

Extreme rainfall events will increase in number and severity in the future because of climate change. By the end of the century, the city could experience as much as 30 percent more annual rainfall than today, and 1.5 times as many days with more than one inch of rain.

How many inches is considered heavy rain? ›

Heavy rain — when the precipitation rate is > 7.6 mm (0.30 in) per hour, or between 10 and 50 mm (0.39 and 1.97 in) per hour. Violent rain — when the precipitation rate is > 50 mm (2.0 in) per hour.

How do you know when a flood is coming? ›

You may notice a stream starting to rise quickly and become muddy. Sometimes flood debris temporarily blocks the water flow upstream. When it breaks free the debris may release a “wall of water” downstream. You may hear a roaring sound upstream as a flood wave moves rapidly toward you.

How far in advance can you predict floods? ›

Sometimes floods develop slowly and forecasters can anticipate where a flood will happen days or weeks before it occurs. Oftentimes flash floods can occur within minutes and sometimes without any sign of rain.

What is the best way to predict flooding in an area? ›

Using tools like drones, thermal cameras, and satellite imagery, forecasters have advanced sensing technologies that can reliably predict flood risks and allow forecasters to send out an early warning.

What state has the most flooding? ›

Florida is the most flood prone state due to its low elevation, extensive coastline, and frequent tropical storms and hurricanes. Heavy rainfall and storm surges frequently overwhelm drainage systems, leading to widespread flooding.

What was the worst flood in history? ›

List
Death countEventLocation
422,499–4,000,0001931 China floodsChina
400,000–893,3031938 Yellow River floodChina
145,0001935 Yangtze floodChina
up to 100,000The flood of 1099Netherlands, England
108 more rows

Where will be flooded by 2050? ›

Sinking ground and rising sea levels will put more than half a million people at risk of repeated flooding across 32 U.S. coastal cities — including New York, Boston, San Francisco and Miami — new research shows. If nothing is done to mitigate this risk, the deluges could cause $107 billion in damages by 2050.

How many inches of rain does it take to flood a car? ›

NATIONWIDE! Even 6 inches of fast-moving flood water can knock you off your feet, and a depth of 2 feet will float your car!

Can heavy rain cause flooding? ›

River flooding can be caused by heavy rainfall, dam failures, rapid snowmelt and ice jams. The National Weather Service issues Flood Warnings for designated River Forecast Points where a flood stage has been established.

What happens when there is too much rainfall? ›

Too much water, however, injures plants, compacts soil, and leads to erosion. Root loss occurs when excess water reduces oxygen in the soil. A plant cannot grow without healthy roots. Extreme summer rain can leach nitrogen out of the soil; nitrogen is vital for photosynthesis.

What is one percent chance of flooding? ›

Find a description of this common term used in floodplain management. The 1% annual chance flood (also known as the 100-year flood) has a 1 in 100 probability of being equaled or exceeded in any given year.

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