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    An Atmospheric River Brings Flooding Risks to the Mid-Atlantic

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    Forecasters warned of flash flooding through midweek, including areas of North Carolina still battered by Hurricane Helene.A slow-moving storm system that’s been called an atmospheric river is poised to deliver bouts of heavy rain across the Mid-Atlantic over the next few days, increasing the risk of flash floods.Forecasters expressed concern for areas where the ground is especially vulnerable in North Carolina. David Roth, a meteorologist at the Weather Prediction Center, said the state has been particularly at risk since Hurricane Helene.“Helene just made everything worse,” he said. “There were some landslides in western North Carolina from it. It takes a while to recover from a tropical cyclone. So their ground is more sensitive.”Mr. Roth said North Carolina’s complex terrain was another factor of concern.“They have a lot of up and down variation,” he said. “Even without Helene, almost every time it rains moderately, to have the mountains, basically you get these small waterfalls.”The Weather Prediction Center has issued a Level 2 out of 4 risk for excessive rainfall, potentially leading to flash flooding across eastern North Carolina, eastern Virginia, Maryland, eastern West Virginia and extending into central and southern Pennsylvania through Wednesday.Flood watches have been issued across these areas through late Tuesday.Rainfall totals were expected to range between one and three inches, and rain may fall at a rate of one to two inches an hour. Forecasters anticipated the intense rain to develop by late Tuesday morning, fueled by daytime warming.The Weather Prediction Center also noted that the hills and mountains stretching from southern Pennsylvania through Virginia could receive additional rainfall because of the way the air is being pushed up the slopes. Recent rainfall has saturated the ground in this region, further elevating the risk of flash flooding.The storm has brought repeated rounds of heavy rain to the Southeast since last week. Its slow-moving nature and a continuous feed of moisture from the Gulf and Atlantic are the main risk factors for flash floods.Forecasters have called this an atmospheric river, a term more commonly associated with the steady streams of moisture that soak the West Coast but that also describes patterns responsible for rain in the East.“You can call any warm conveyor belt circulation around a nontropical low an atmospheric river,” said Mr. Roth, adding that such systems are especially concerning when they stall.“This at least will show some progression,” he said. “It won’t be as bad as some of the multiday heavy rain events that the mountains of California can sometimes get.”The system is expected to reach the Great Lakes by Wednesday, when thunderstorms will most likely become more scattered and less intense. However, a lower-level risk for flash flooding, 1 out of 4, was expected across parts of the Carolinas and into southern Pennsylvania through Thursday. More

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      Damaging Winds and Flash Floods Threaten Central and Eastern U.S. Tuesday

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      Forecasters warned of damaging winds, hailstones bigger than baseballs and flash floods in parts of an area stretching from Texas to upstate New York.Forecasters are warning of large hail, damaging winds and flash flooding in areas from Texas to upstate New York, as a dangerous storm system continues to tear across central and eastern parts of the United States.The National Weather Service’s Storm Prediction Center has placed parts of western Texas and southwestern Oklahoma, as well as stretches of the Ohio Valley, western Pennsylvania and upstate New York, under an “enhanced” risk of severe weather on Tuesday, the third level of its five-level classification system.Forecasters warned that southern areas faced the threat of hail and isolated tornadoes, while the Northern United States, including the Great Lakes, was at risk of damaging winds.The Storm Prediction Center warned that hailstones larger than baseballs could fall in northwest Texas on Tuesday, accompanied by wind gusts of up to 75 miles per hour. The threat of severe weather was expected to grow stronger through the day.Tornadoes were also possible in parts of Texas and Oklahoma, the Ohio Valley and upstate New York. But Matt Mosier, a lead forecaster at the Storm Prediction Center, said that they were not expected to be the main hazard.Tuesday’s severe weather threats follow a tense Monday in the Upper Midwest, where areas of Iowa, Minnesota and Wisconsin had been placed under a higher risk of tornadoes, at the fourth level in the Weather Service’s classification system. In the end, just two were reported in Minnesota and Wisconsin, a quieter outcome that forecasters attributed to thunderstorms remaining along the cold front associated with the storm system.“When that occurs, it makes it less likely to produce a tornado and more likely to produce hail and damaging winds,” Mr. Mosier said.Still, areas of Oklahoma saw teacup-sized hail, while wind gusts of as high as 68 m.p.h. were recorded in Kansas.Another concern on Tuesday is rain: Northeast Texas, central Oklahoma and western Arkansas were under moderate risk of flash flooding through Thursday, with the Weather Service warning of “locally catastrophic flooding” in parts of southwest Oklahoma as rain falls on already recently soaked grounds.“When you get a stalled cold front like that and there’s a lot of moisture around, it’s kind of a recipe for numerous rounds of rain and storms,” Mr. Mosier said.The storm is expected to move eastward by the weekend, with high pressure bringing a period of calmer weather. But any respite may be short-lived, as another storm system is expected to develop over the western United States as soon as Saturday.“It’s just that time of year,” Mr. Mosier said. “We don’t really go a very long period of time without some sort of system coming through again.” More

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      Heavy Rains Cause Flooding in New Orleans

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      Lingering storms drenched the city with over a month’s worth of rain, swamping roads and stranding drivers.Video filmed on April 21 shows motorists driving through a flooded street in Gretna, Louisiana.A series of severe thunderstorms brought widespread flooding to New Orleans on Monday, overwhelming roads and prompting flash flood warnings. Drivers struggled as heavy rain poured across the city for hours, particularly in eastern areas.“It’s an absolute mess out there across portions of Gretna, New Orleans, the Lower 9th and Arabi,” the National Weather Service in New Orleans said on X, referencing areas in and around the city. “Do not drive around. It’s near impossible to see where some roads end and canals begin.”The storms were fueled by a persistent flow of warm, moisture-laden air from the Gulf of Mexico interacting with a front across the Southeast. This setup resulted in an unstable atmosphere that allowed storms to linger over the city and pound it with heavy rain.“Thunderstorms sat over New Orleans for a few hours on Monday afternoon,” said Marc Chenard, a meteorologist with the Weather Prediction Center. “The east side of the downtown seemed to get hit the hardest.”Rain gauges recorded between four and seven inches of rain, with the highest totals on the east side. The average rainfall in New Orleans for the month of April is 5.22 inches.“Had it occurred 20 miles farther south or east or west, it likely wouldn’t have had the same amount of impact,” Mr. Chenard said. “The storms just persisted long enough, for a couple of hours, to get some of those high totals.”Flash flooding remains a concern in the coming days in other parts of the United States, and the Weather Prediction Center said parts of the South and the Midwest were under a marginal risk of excessive rainfall through Friday. Up to two inches of rainfall is expected across the Southeast.New Orleans can expect drier weather for the weekend.“Rain chances will gradually decrease through the remainder of the week, with a dry forecast for the weekend,” the New Orleans office of the Weather Service said. More

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      Long-Running Storm Drenches Central U.S. but Starts to Shift East

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      The heaviest rains so far this weekend have hit Arkansas, Missouri and Kentucky. More rain is expected on Sunday, but the risk of flooding will be less severe.The huge storm system that has caused widespread damage across the central United States is bringing more heavy rain and high winds on Sunday, continuing its dayslong stretch of soaking communities from Texas to Ohio as it begins to move east.The heaviest rains over the weekend so far have fallen in Arkansas, Missouri and Kentucky, and rising water levels and flooding have prompted water rescues, road closures and evacuation orders. The storm has killed at least 16 people, including a 5-year-old boy in Arkansas, a 9-year-old boy in Kentucky and a firefighter in Missouri, since it began on Wednesday.

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      Search for a place to see the observed precipitation.

      Source: National Weather Service
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       Values are in inches of water or the equivalent amount of melted snow and ice.
      By Bea Malsky and Martín González Gómez

      The threat of storms and rainfall will shift eastward but diminish on Sunday, which will be a welcome reprieve for residents in the South and the Midwest. In some areas — including northern Arkansas and southern Missouri — rivers are expected to crest on Sunday, and possibly as late as Wednesday, but the risk of dangerous flooding will not be as high as it was on Friday and Saturday.While the worst of the rain is over in northern Kentucky, parts of the region are still expected to receive up to five inches of rain before the long stretch of bad weather finally clears, according to the National Weather Service. “Moderate to major” flooding was forecast on many of the region’s rivers.“Given the fact that everything is so saturated, everything is just running right off the ground and into area creeks and streams,” said Nate McGinnis, a meteorologist with the agency in Wilmington, Ohio.

      Forecast risk of severe storms for Sunday

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      Scenes From States Devastated by a Powerful Storm System

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      A massive storm system has pummeled the Midwest and South this week, killing at least seven people and leaving a trail of destruction from Arkansas to Ohio. The risk may only increase in the days ahead as sustained rainfall is expected to cause widespread and potentially catastrophic floods.The storm began to menace the region on Wednesday, when tornadoes and strong winds toppled barns, houses and power poles. Several people died in Tennessee, including a teenage girl whose modular home was destroyed by a tornado. Officials also linked a fire chief’s death in Missouri and a motorist’s death in Indiana to the storm.In many communities, the focus shifted immediately to the threat of flooding. Water already covered roads in Nashville, and schools in some drenched Kentucky and Tennessee communities called off Friday classes. With many waterways expected to crest at major flood stage over the weekend, residents of river towns in Arkansas, Missouri and beyond were racing to fill up sandbags.Here is a look at some of the damage:ArkansasBrad J. Vest for The New York TimesCody Ferguson took pictures of damage to his home in Lake City.Brad J. Vest for The New York TimesJessica Rust showed off a photo of a tornado that she took on Wednesday as she and her family cleared debris from her father’s destroyed mobile home in Lake City.Associated PressPeople surveyed destroyed homes in Lake City.Brad J. Vest for The New York TimesDylon Davies embraced Skylar, his friend’s dog that survived the tornado in Lake City.TennesseeWilliam DeShazer for The New York TimesRescue operations were underway as floodwaters grew in Nashville.@racheljanemarie via XFloodwaters overflowed into streets in Nashville.William DeShazer for The New York TimesUtility workers began restoring power in Selmer.William DeShazer for The New York TimesBuildings were shredded in Selmer.Tennessee Highway Patrol via StoryfulCrews searched through wreckage after a tornado hit Selmer.William DeShazer for The New York TimesFlooding in Nashville.William DeShazer for The New York TimesResidents in Selmer patched a roof as rain continued to pour.Anthony Kyle Borden via FacebookLightening as tornado warnings were issued in Statonville.KentuckyMichael Swensen/Getty ImagesParishioners and community members assessed damage after a tornado struck the Christ Community Church in West Paducah.Leandro Lozada/Agence France-Presse, via Afp /Afp Via Getty ImagesA tornado ripped through buildings in Louisville.Indiana@DKahunaB via StoryfulTornados toppled trees and damaged homes in Carmel.MissouriDavid Robert Elliott for The New York TimesResidents explored the wreckage in Nevada.David Robert Elliott for The New York TimesBusinesses in Nevada were destroyed by the storm.OklahomaMike Simons/Tulsa World, via Associated PressRyland Mosley, 18, who was on the second story of his home when the storm passed, stood outside and observed the aftermath in Owasso.Mike Simons/Tulsa World, via Associated PressDamage in Owasso. More

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      Severe Storm Risk Shifts to East Coast

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      Thunderstorms and potentially tornadoes are expected from Central Florida to western Pennsylvania on Sunday, forecasters said.The deadly bombardment of severe storms that spawned tornadoes and dust storms across the Midwest and South is expected to sweep across the East Coast on Sunday. The system, which has killed at least 36 people, is expected to unleash storms that could generate tornadoes across the Mid-Atlantic and the Southeast.The turbulent weather that has caused widespread destruction is part of a huge cross-country system that dropped hail — some as large as baseballs — and produced tornadoes Friday and Saturday that killed at least 23 people.The system also caused wildfires driven by hurricane-force winds, and dust storms that led to crashes that killed at least 13 people in Kansas, Oklahoma and the Texas Panhandle.On Sunday, the threat of tornadoes and thunderstorms is expected to be over in the South and will shift east, though at a level much lower than it was on Saturday.Forecasters said there would be a slight risk of severe storms and tornadoes from Central Florida to western Pennsylvania. However, a higher enhanced risk was in place for western and central Pennsylvania.“I’m not expecting the coverage to be as significant and the storms to be as numerous in terms of the overall severity,” said Rich Otto, a meteorologist with the National Weather Service’s Weather Prediction Center. “But there’s still going to be a risk for tornadoes, large hail and damaging winds.”Mr. Otto said that Mississippi and Alabama, which experienced the highest possible level of tornado risk on Saturday, “should have a relatively tranquil day on Sunday.”Tornadoes across the South and MidwestLocations of tornado sightings or damage reported since Friday morning. More

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      Southern California Braces for Storm Damage in Wildfire Areas

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      An intense storm could cause flooding and debris flows in areas burned by wildfires. Some residents have begun to evacuate.A large swath of California was bracing Thursday for an intense bout of rain that could lead to flooding and cause debris flows in areas recently burned by wildfires.The Southern California regions scorched by flames last month were of particular concern because the soil in those areas can repel water and allow sheets of water to race downhill, collecting debris along the way.In the Los Angeles area, about two inches of rain was expected over the next two days, but some parts of Southern California could receive more than four inches, according to the National Weather Service office in Oxnard, Calif. A torrent of rain within a short period could pose particular problems.“It’s looking like we’re going to be seeing the highest amount of rain that we’ve had in a single storm so far this season,” Lisa Phillips, a meteorologist with the Weather Service, said. Some officials in Southern California began to issue evacuation warnings and orders on Wednesday. In Santa Barbara County, the sheriff’s office ordered evacuations in areas in and around the burn scar of the Lake fire, which burned more than 38,000 acres last year. Residents under the order were told to leave by 3 p.m. on Wednesday, and those who chose not to evacuate were told to prepare to sustain themselves for several days if they had to shelter in place.Track the Latest Atmospheric River to Hit the West CoastUse these maps to follow the storm’s forecast and impact.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Wintry Mess Predicted Across Parts of the Northeast

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      Nearly a foot of snow could fall in Boston, and three to five inches of snow and sleet are expected in New York.A winter storm that has been working its way across the country is expected to bring a strong dose of winter weather to the northeastern United States on Saturday, with snow accumulations as high as seven inches expected across Boston and other cities.In New York, snow is expected to begin falling late Saturday afternoon before changing to a mix of rain, snow and sleet into the night. Three to five inches of snow and sleet are possible by Sunday, with even more in some parts of the metro area, according to the National Weather Service.Areas around Boston, where up to an inch of snow an hour may fall on Saturday night, are expected to see snow totals of between five and 11 inches before the storm moves off the East Coast on Sunday.In the Northeast, winter weather advisories and winter storm warnings were in effect until Sunday across New York, New Jersey and New England. Winter storm warnings on Saturday also stretched from Wisconsin through Minnesota and into the Dakotas.This is the second winter storm in a week to traverse the country, creating a dividing line of warmer rainy weather in the south and colder snowy weather to the north — and a messy wintry mix in between.Philadelphia, on the southern edge of this storm, is likely to see a mix of snow, sleet and freezing rain as early as noon on Saturday, and icy roads will make driving treacherous, forecasters warned.How Much Snow To Expect More

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      Spillover in Lake Berryessa Reservoir Gushes for First Time Since 2019

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      For the first time in six years, water is gushing through a unique spillway in Lake Berryessa, just north of San Francisco.Footage provided to The New York Times showed Lake Berryessa’s spillway overflowed with water.Jay Cuetara, Solano County WaterBack-to-back atmospheric rivers have dumped buckets of rain across Northern California, filling its rivers to the brim and beyond. The Russian River spilled over its banks in Sonoma County, and in the far reaches of the state, Lake Shasta, a key marker of the state’s overall water levels, has nearly filled up.And just east of Napa Valley, a rare not-fully-natural phenomenon was observed for the first time since 2019: Water began gushing, furiously, through a spillway in Lake Berryessa.The eye-catching event has happened only three other times in the past 20 years, and it has drawn curiosity seekers to the man-made reservoir, 70 miles northeast of San Francisco.“People were taking pictures and videos and just standing in awe,” said Peter Kilkus, the editor of the Lake Berryessa News, who was there Wednesday morning with about two dozen other people.The 72-foot-wide spillway, called a morning glory because its shape mimics the flower, is a unique funnel-shaped cement pipe that sits within the reservoir. (Locals call it the glory hole.)The mechanism is a type of drainage system with water pouring down the pipe and into Putah Creek on the other side of Monticello Dam. The spillway is among a few with that shape in the country; there’s also one at Pleasant Hill Lake in Perrysville, Ohio. More