The National Weather Service said heavy rainfall is expected to start in the afternoon and may lead to flash flooding, with an "elevated" risk of flash flooding on and northwest of the I-95 corridor. The agency has already issued a flash flood watch for Sussex, Morris, Somerset, Warren, Hunterdon, Mercer, Essex, Bergen, Hudson, Passaic, Middlesex and Union counties through Friday morning. A flash flood watch has been issued for seven New Jersey counties starting Thursday afternoon with heavy rain and the threat of severe thunderstorms that could drop more than 2 inches of rainfall on parts of the state. NEW YORK — A slow-moving cold front brought the potential for flooding with serious downpours Thursday night.
The rain should diminish in intensity during the overnight hours; however the showers will linger into Friday morning. Numerous flash flood warnings were issued across Northern New Jersey as rainfall rates in excess of 2 inches per hour caused flooding on area roadways and winds have been gusty causing a few scattered power outages as well. The National Weather Service has issued a flash flood watch for seven New Jersey counties through 8 a.m. Friday with heavy rainfall expected to hit the state along with the chance of severe thunderstorms.
The flash flood watch, resulting from a slow-moving thunderstorm system expected to bring heavy rain and flooding, has been issued for all or part of 16 New Jersey counties, NJ.com reported. The National Weather Service issued a flash flood watch for New York City until Thursday at 2 p.m. City emergency management officials warned that 5 to 6 inches of rain were expected with locally higher amounts of up to 8 inches possible. More than 50 million people in the Northeast alone remained under a flash flood watch or warning, four days after Ida roared ashore in Louisiana as a Category 4 hurricane.
The winds had vastly diminished, but the storm was dishing out heavy rain, much of it in areas already saturated by recent deluges. With showers and thunderstorms expected this afternoon into the evening, the National Weather Service warns that there may be flash flooding, with one to three inches, possibly up to four inches, of rainfall. According to PIX 11, the severe weather is "because of a slow-moving warm front coupled with a lot of moisture in the air." NEW JERSEY - The Garden State is expected to see severe thunderstorms hit the region later today, bringing with it flash flooding, strong wind gusts and up to three inches of rain in parts of the state, forecasters said Thursday. Overall, 2.5 to 5 inches of rain is expected before it tapers off during the pre-dawn on Thursday. This coupled with the saturated grounds from Henri's rain last week will lead to rapidly developing areas of flash flooding along with streams/creeks quickly overflowing their banks and leading to road closures.
Also, winds increase Wednesday night and although they won't be overly gusty, they can be enough to down some trees and cause power outages thanks to the saturated grounds. Finally, not to be overlooked is the potential for river flooding that can linger through the week and into the weekend. However, with a forecast of 1 to 2+ inches of rain in play, we have to keep our current status in mind. (Called "antecedent" conditions.) Many communities across New Jersey are still a mess. Flood warnings continue for the Passaic River through Morris, Passaic, and Essex counties, with water levels still running just above flood stage.
And unfortunately, that is the exact corner of the state most likely to see heavy rain from Wednesday evening's storm system. "The heavy rainfall may produce flash flooding threats for western New Jersey in the afternoon and evening hours." The weather service says 1 to 2 inches of rain has already fallen in the areas that are under a flash flood warning. The Lehigh Valley and surrounding areas are under a flash flood watch with 2 to 3 inches of rain expected Thursday afternoon and night.
A person braves the rain at Main and West Market streets in Bethlehem during drenching rain from the remnants of Hurricane Ida on Sept. 1, 2021. The Lehigh Valley is under a flash flood watch effective Thursday afternoon through Friday morning with 2-3 inches of rain in the forecast. The weather service also said that the storm may bring strong winds and tornadoes, which have the potential to upend trees and power lines. The strong winds are expected to strike north of Interstate 195 and west of Interstate 95, which is in central New Jersey. The National Weather Service has issued flash flood warnings and flood advisories in nine areas of New Jersey where heavy rain has been falling Thursday, putting streets at risk of rapid flooding. Wednesday, a round of spotty showers and thunderstorms is expected over New Jersey.
These hit or miss storms may become strong or severe, given our warm and humid atmosphere. Gusty winds, pockets of heavy rain, frequent lightning, and even an isolated tornado are possible. Severe weather has once again returned to the Garden State, as multiple counties are expected to see anywhere from 2 to 3 inches of heavy rainfall, which could lead to flash flooding Thursday night through Friday morning. Between 2 to 3 inches of rainfall may potentially fall across parts of New Jersey in the next few days, as multiple counties have already been issued a flash flood watch.
A flash flood watch will be in effect for Sussex, Warren, Morris, Hunterdon, Somerset, Middlesex and Mercer counties from Thursday afternoon through Friday morning. Though rainfall totals in those counties are expected to be less than 3 inches, if the cold front stalls locally higher amounts are possible. The National Weather Service in Mount Holly, New Jersey, said showers and thunderstorms will move through the region starting Thursday morning. Between 1 and 2 inches of rain is forecast to fall in Bucks and Montgomery counties. The NWS zone forecast for Cape May County in New Jersey was predicting "tropical storm conditions" and wind gusts up to 40 mph Thursday night and Friday.
These winds will be capable of knocking down a few power lines and tree limbs. Ida was also the third consecutive tropical system to impact the region. The week prior, Tropical Depression Henri dumped more than 6 inches of rain in parts of the area. Days before that, the remnants of Tropical Storm Fred dumped up to 5 inches of rain in some areas, leading to flash flooding that prompted dozens of water rescues.
Thunderstorms with heavy rain are forecast to move through the region tonight. Given the saturated soils from multiple tropical systems, additional heavy rainfall is likely to lead to flooding of flood prone and other low-lying areas due to rapid runoff, the watch states. Ida wreaked havoc on virtually all of New Jersey Wednesday, with flash flood, hazardous weather and tornado watches and warnings spread throughout the state. The National Weather Service also confirmed multiple tornados touched down in central and southern New Jersey. Passaic Mayor Hector C. Lora told NJ.com one person in his community had died in connection with the storm. Trenton officials were urging residents to evacuate as the nearby Delaware River continued to rise, NJ.com also reported.
Strong lines of thunderstorms first moved into New York points north and west of the city late Wednesday and later stretched into northwest New Jersey, triggering flash flood warnings for some into early Thursday. The Storm Prediction Center has put NJ in a "marginal risk" zone for dangerous weather for Thursday and Thursday night. That translates to a 5% of damaging winds and 2% chance of a tornado. I realize those numbers don't mean much — in plain English, the severe threat is worth mentioning, but I'm more worried about the flash flooding potential here. A Flash Flood Watch continues for approximately the northern half of New Jersey too. The incoming storms have produced 1 to 1.5 inches of rain over eastern Pennsylvania, right on the forecast target.
But river levels are only expected to rise a few inches from such rainfall. Any thunderstorms could produce damaging straight line winds, which may result in downed trees and power lines, the weather service said. In general, the heaviest rain is expected in North Jersey, "though a period of heavy rain will extend down the Interstate 95 corridor," the weather service said in its morning forecast discussion. Much of the rainfall may occur in a short period of time, leading to the threat of at least localized flash flooding, the weather service said. The National Weather Service has issued a flash flood watch for Bucks and Montgomery counties starting Thursday morning.
A flood emergency, as opposed to a warning, is issued in "exceedingly rare situations when a severe threat to human life and catastrophic damage from a flash flood is happening or will happen soon", the NWS said. The NHC was forecasting 1 to 3 inches of rain, with localized totals up to 5 inches, across much of the mid-Atlantic and New England Thursday into Friday. This could result in flash and urban flooding over parts of the area. NOAA's Weather Prediction Center has placed our entire region under a slight risk of flash flooding Thursday through Thursday night. "Given this shift in track, the threat to our area has increased and thus a tropical storm watch is in effect for coastal NJ, southern Delmarva and adjacent marine zones." The weather service forecast as of Wednesday morning also says some severe storms may bring damaging wind and isolated tornadoes.
"I'd say flooding, especially in the central part of the state. We're going to have several inches of rain, depending on where your are, when this thing is said and done. But I'd say flooding, flash flooding particularly, but not exclusively, in the central part of the state," Murphy said. The threat for flooding will primarily occur during and just after the heavy rain — it won't last long. There are some river tide gauges that are forecast to touch the minor flooding category, including the Arthur Kill , the Delaware River, and the Maurice River.
However, unless rainfall significantly overperforms expectations, we should not see widespread water inundation issues from this storm system. —By the way, there could be some downpours in South Jersey, especially as this storm system wraps up on Thursday. But because the southern half of NJ was largely spared from the heavy rain of Ida last week, flash flooding is not expected to be a widespread problem there. A "watch" is a formal heads-up that severe weather - including wind, hail, and tornadoes - is possible within the next few hours. "Much of this rainfall may occur in a short period of time, leading to the threat of at least localized flash flooding," the weather service said.
New Jersey remained under a severe thunderstorm watch throughout the state and residents were warned of potential flash floods into Sunday morning as severe weather barreled through the area. Ida dumped extremely heavy rain across the New York City region Wednesday, triggering flash flooding and even tornadoes. Heavy rain associated with the remnants of what is currently Hurricane Ida may result in flooding over the next few days. A flash flood watch is now in effect for New Jersey for Wednesday morning through Thursday. There's a flash flood watch from this afternoon through the evening in Bergen, Essex, Hudson, Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex Union, Passaic and Warren counties.
A remarkable run of severe weather in the Lehigh Valley is likely to continue Wednesday, the National Weather Service said, emphasizing concern for tornadoes, damaging winds and flash flooding. The flash flood watch will be effective Thursday afternoon through Friday morning for a wide area of Pennsylvania and New Jersey, among other states. Local counties under the watch include Berks, Bucks, Lehigh, Northampton, Carbon, Monroe, Warren and Hunterdon. —Wednesday's first round of spotty thunderstorms will peak in the evening hours, between about 4 p.m. There is a risk for some severe weather, meaning wind, hail, and/or a tornado. Tropical Depression Peter, which formed Sunday as a tropical storm, brought heavy rain to portions of Puerto Rico, the Virgin Islands and the northern Leeward Islands, the hurricane center said.
Wednesday, the center of Peter was about 1000 miles west-northwest of the Cabo Verde Islands. A flash flood watch is in effect for the lower Hudson Valley and a swath of northeast New Jersey on Wednesday — just over a week after Tropical Storm Isaias ripped through the region. A separate storm passed through much of Sussex County Friday afternoon.
Ken Koenitzer, a volunteer weather observer, reported more than 3 inches of rain in Wantage, while another reading in Vernon showed a wind gust of 64 mph from the storm. Fourteen counties, including Sussex, Warren and Morris, are also under a flash flood watch through 2 a.m. Sunday that also covered parts of eastern Pennsylvania and northern Delaware. At least nine people have died after flash flooding and tornadoes hit the north-eastern US, local media report.
"If you're thinking of going outside, don't. Stay off the subways. Stay off the roads. Don't drive into these heavy waters." "Stay off the roads, stay home, and stay safe," New Jersey Gov. Phil Murphy said on Twitter amid dozens of videos going viral on social media, showing streets with rapid-moving water. Murphy declared a state of emergency in all of New Jersey's 21 counties, urging people to stay off the flooded roads.
The latest forecast from the NHC has Elsa weakening to a tropical depression over the Carolinas on Thursday, then restrengthening back into a tropical storm by Thursday night or early Friday as it moves through the mid-Atlantic. The center of Elsa is projected to be positioned over or just offshore of New Jersey Friday morning, then it will quickly accelerate toward southern New England Friday afternoon. More than half of New Jersey is under a flash flood watch, according to the National Weather Service , with tornadoes in the forecast, too. Rain might pour down at one to two inches per hour, which means there may potentially be more flooded subway stations. Okay, so you were woken up by the insanely loud clap of thunder and pelting rain at 2 a.m.
Now, get ready for round two as the New York City region enters yet another flash flood watch. At noon, Doppler radar indicated heavy rain across the warned area, and up to two inches of rain have already fallen in the last hour, according to the notification. Flash flooding is expected to begin shortly in the areas of heaviest rain. CENTRAL JERSEY – The National Weather Service has issued a flash flood warning for parts of Central Jersey on Tuesday.
That warning lingered longest for Warren County, where an estimated 4 inches of rain fell in a six-hour period before the system moved into the New York City area shortly after 1 a.m. Limited rainfall of less than an inch was expected there by the time the heaviest rain moved out around the time of Thursday's peak morning rush. The front itself — the leading edge of a new air mass — will crawl from west to east throughout Thursday and Thursday night.
Fueled by plentiful atmospheric moisture, bands of moderate to heavy rain will stream along that frontal boundary, generally from south to north. "Storms will be capable of producing damaging wind gusts and isolated tornadoes, potentially bringing down trees and power lines." Thursday, the "main event" will precede a cold frontal passage. One or two bands of moderate to heavy rain will sweep generally from northwest to southeast across the state. This will be the period of the most widespread downpours, and the highest flash flooding risk.
While they're not in effect as of Thursday morning, the weather service said there is a high probability multiple areas could see severe thunderstorm warnings throughout the night. A flood warning or a flash flood warning is more urgent than a watch, so drivers and pedestrians should avoid flooded streets and move to higher ground. Any remaining heavy rain will end Friday morning but cloudy conditions are expected to stick around and showers could linger into the early afternoon. According to The National Weather Service, a flash flood watch remains in effect through the Friday morning commute in Northern New Jersey. While thunderstorms are predicted in New York City, it's not currently included under the flash flood watch.
Two people died when a motorway in Mississippi collapsed, while two others died in Louisiana - one in flash flooding, and another who was hit by a falling tree. Two electrical workers in Alabama were killed while they were repairing damage caused by the hurricane. Suddenly, my phone lit up with flash flooding alerts, and the rainfall intensified, vast sheets of water hammering the side of the train. "Please, if you can stay home today, please stay home," Gov. Tom Wolf said at a news conference from the Pennsylvania Emergency Management Agency headquarters in Harrisburg. He warned that urban, river and flash flooding were expected through Thursday.
The National Weather Service posted several Tornado Watches and Warnings for parts of the region throughout Wednesday evening, including for parts of New York City, as well as alerts for flooding, severe thunderstorms, and more. At least one tornado, possibly more, touched down in New Jersey. At one point Wednesday evening, radar detected wind rotation in the Bronx. "MTA train service is extremely limited, if not suspended, because of heavy rainfall and flooding across the region," the MTA said.
"It is strongly recommended to avoid traveling at this time, if possible." Ida, now a tropical storm but seemingly as unrelenting as ever with torrential rain and fast-moving storm surge, is taking aim at the northeastern U.S. for the next several days. Forecasters fear life-threatening and damaging flooding in towns and highways throughout New England.
In Montgomery County, flooding was reported on Route 422 near Pottstown — where more than three-quarters of an inch of rain fell between 6 and 7 p.m. The weather service also posted reports of flooding in Philly on I-676 near Logan Square and on I-95 near the Betsy Ross Bridge; on Route 1 in Fairless Hills, Bucks County; and on the Blue Route near Media, Delaware County. A flash flood watch has been issued by the NWS for our entire viewing area from noon Thursday to noon Friday. The National Hurricane Center was predicting additional rainfall amounts of 1 to 3 inches, with storm totals of 4 to 8 inches, across northern portions of the Florida Peninsula through Wednesday night.
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