Cut off from fuel and oxygen, Louisianans with medical issues grow desperate.

Damaged inferior lines successful New Orleans connected Tuesday, 2 days aft Hurricane Ida made landfall successful Louisiana.Credit...Johnny Milano for The New York Times

Entergy, Louisiana’s largest utility, announced aboriginal Wednesday that it had restored energy to immoderate of its customers successful New Orleans, but it could beryllium days longer earlier it and different Louisiana cities deed hard by Hurricane Ida person afloat powerfulness again.

The institution did not specify however galore customers were backmost online. Nearly 1 cardinal customers successful Louisiana were inactive without powerfulness aboriginal Wednesday morning, days aft Ida tore done the state, causing flooding and knocking retired the transmission lines that powerfulness New Orleans. Restarting the city’s powerfulness presumption and captious infrastructure specified arsenic hospitals are apical priorities.

“We bash person a glimmer of airy oregon hope, if you will,” Patrick Hamby, a spokesperson for Entergy said astatine a quality league successful Jefferson Parish connected Tuesday night. “The archetypal airy is coming.”

The quality came with the caveat that it could beryllium a fewer much days earlier Entergy would person a amended estimation of erstwhile wide powerfulness would beryllium restored.

In summation to the wide powerfulness outages, overmuch of southeastern Louisiana was reeling from the Category 4 hurricane.

Drake Foret, 31, a chopper aviator from Houma, flew implicit immoderate of the worst-hit areas connected Tuesday, getting a bird’s-eye presumption of the harm and trying to transport radical and supplies erstwhile helium could.

He said the harm was precise atrocious successful places similar Golden Meadow, Galliano, Cut Off and Larose — a drawstring of towns successful the marshy areas on Bayou Lafourche, wherever beardown winds had ripped the roofs disconnected people’s homes.

“That country took a truly hard impact,” Mr. Foret said. “I would accidental astatine slightest fractional of each of the houses down determination person terrible damage.”

His parents’ location successful Larose had been destroyed, and helium flew determination to cheque connected them, landing concisely to springiness them a hug. But helium has since recovered it hard to scope them by telephone due to the fact that of spotty service.

“I deliberation this is the worst harm this country has ever received, and I don’t deliberation it volition ever beryllium the aforesaid again,” helium said.

Representative Steve Scalise of Louisiana said astatine a quality league connected Tuesday that the authorities faces a agelong recovery.

“This was a truly atrocious storm, for galore radical worse than Katrina,” the congressman said. “We’ll proceed pulling together, and we volition get done this, similar we’ve gotten done different disasters.”

Ida has weakened into a tropical slump and was expected to determination northeast connected Wednesday, the National Weather Service said, bringing the imaginable for 3 to 8 inches of rainfall from the Mid-Atlantic to confederate New England. The Weather Service successful New York said connected Twitter that dense rainfall from the strategy could bring “high imaginable for important flooding impacts” to the area.

The effect of punishing upwind and rainfall was evident successful Louisiana, wherever Cynthia Lee Sheng, president of Jefferson Parish, said astatine a quality league that a caravan had been capable to marque it to Grand Isle.

It reported backmost that the obstruction land was uninhabitable.

As a effect of 10 to 12 breaks successful a levee, Ms. Sheng said, 100 percent of structures were damaged and 40 percent were “either wholly destroyed with conscionable the piling showing, oregon possibly conscionable a partition lasting up connected that building.”

With nary energy and “extremely fragile” sewer and h2o systems, Ms. Sheng said she encouraged those inactive successful the country to leave.

“We bash not person the services that a basal assemblage has,” she said. “These are not conditions to beryllium surviving in.”

People hold successful enactment for substance successful Morgan City, La., connected Tuesday. With astir of the surrounding country near without power, prime fewer state stations are running, and adjacent less person fuel.Credit...Johnny Milano for The New York Times

The past clip Peggy Gamberella, 63, heard from her younger sister, she said she had nary drinking h2o oregon energy and had mislaid everything successful Hurricane Ida.

The sister, Patricia Killingsworth of Chauvin, La., has a chronic lung illness and has occupation breathing erstwhile it’s hot. She relies connected a instrumentality to assistance her breathe, but that instrumentality needs to beryllium plugged in. After Ida knocked retired her power, Ms. Killingsworth was capable to usage someone’s generator, her household said.

“I don’t spot nary assistance successful show for days,” Mr. Killingsworth, 61, wrote successful a substance connection earlier pleading, “Send assistance if you can.”

That was connected Monday evening; the household hasn’t heard from her since.

Ms. Gamberella said the household had been scrambling for 2 days to find help, but she lives much than 200 miles away, successful Laurel, Miss.

“I conscionable commune she is OK,” Ms. Gamberella said.

Roads are inactive blocked successful immoderate confederate Louisiana communities passim Terrebonne Parish due to the fact that of downed trees and powerfulness lines, making entree and rescue efforts difficult, according to Lauren Smith, unpaid coordinator and spokeswoman for the Cajun Navy Ground Force, a community-led disaster-response organization.

She said that portion effect teams enactment to wide the roads, uncovering substance to powerfulness generators, concatenation saws, instrumentality and vehicles is 1 of the biggest challenges.

Having substance for generators is particularly captious for radical with disabilities and aesculapian issues, she said, citing a pistillate successful request of hospice-level attraction whose generator went retired connected Monday.

“We had to fundamentally instrumentality each the substance that was moving generators for our campy and instrumentality it implicit and capable up her generator” she said.

In general, communities passim the Gulf Coast portion are much apt to trust connected backup generators than star power, which tin pb to problems if determination are substance shortages, according to Andrew Schroeder, vice president for probe and investigation astatine Direct Relief, a nonprofit humanitarian organization.

“Every time that goes by becomes an expanding challenge,” helium said. “The archetypal 24 hours, you person possibly not excessively galore problems. By the clip you’re into a week, and we’ve seen this with a batch of different places, past you person problems with dialysis, and you person problems with oxygen procreation and ventilation.”

According to Department of Health and Human Services data, determination are thousands of Medicare beneficiaries who trust connected electricity-dependent aesculapian devices surviving successful Orleans, Jefferson, Terrebonne Parishes and different places presently without power.

In Lacombe, La., Megan Alfonso, 33, has been sheltering successful spot with her mother, Deborah Alfonso, since Saturday.

Her mother, 63, who has chronic lung disease, usually relies connected an oxygen concentrator instrumentality that needs to beryllium plugged in. But aft the powerfulness went retired connected Sunday afternoon, she switched to utilizing oxygen tanks.

The household started retired with 5 tanks; each 1 has capable aerial to past for astir 2 and a fractional hours. By Tuesday morning, they were connected their past tank.

“She’s much frightened past anything,” Ms. Alfonso said of her mother. “She started not utilizing them and conscionable risking it truthful she tin prevention them.”

After waiting for a effect from exigency officials oregon effect groups for hours, Ms. Alfonso decided to instrumentality a risk. On Tuesday evening, she drove to a aesculapian proviso bureau astir 30 minutes away, adjacent though she said the conveyance sounded “rough” aft being submerged successful h2o hours earlier.

She got 4 afloat tanks of oxygen — capable for 10 much hours.

A terrible thunderstorm aboriginal Wednesday successful Washington, which was nether a flash flood watch.Credit...Gamal Diab/EPA, via Shutterstock

The remnants of Hurricane Ida are expected to driblet dense rainfall crossed parts of the Mid-Atlantic and confederate New England connected Wednesday and Thursday, with life-threatening flash-flooding imaginable successful overmuch of those areas, meteorologists said.

The Mid-Atlantic and New England country should expect 3 to 8 inches of rainfall connected Wednesday and into Thursday from Ida, the National Weather Service said. The tempest deed Louisiana connected Sunday arsenic a Category 4 hurricane but has since been downgraded to a tropical depression, according to the National Hurricane Center.

The governors of Virginia and West Virginia declared states of exigency connected Tuesday up of the system’s arrival.

Widespread stream flooding could hap successful confederate Pennsylvania and New Jersey, peculiarly successful the Monongahela, Potomac, Susquehanna, Delaware, and little Hudson River basins, forecasters said.

The past tempest to deed the Northeast was Henri, which made landfall successful southwestern Rhode Island connected Aug. 22 arsenic a tropical storm, sending lashing bands of rainfall crossed overmuch of New England that knocked retired powerfulness successful astir of coastal Rhode Island, forced evacuations successful Connecticut, stranded dozens of motorists successful New Jersey and shattered rainfall records successful New York City.

At its peak, Henri near much than 140,000 households without powerfulness from New Jersey to Maine, and successful New York City, cars were near stranded successful flooded streets.

Meteorologists were informing connected Tuesday that akin precocious amounts of rainfall could deed the portion arsenic the tropical moisture associated with Ida intersects with beardown upwind bands implicit the precocious levels of the ambiance successful the Northeast, creating dense rainfalls.

A flash flood watch volition beryllium successful effect from Wednesday nighttime to Thursday for each of Connecticut, Massachusetts and Rhode Island. Morning commutes connected Thursday could beryllium affected by drainage flooding successful overmuch of the New England and the Mid-Atlantic, peculiarly successful metropolitan areas, meteorologists said.

In New York City and adjacent areas, wherever a flash flood ticker volition besides beryllium successful effect from Wednesday day done Thursday afternoon, the remnants of Ida volition bring a play of dense rainfall and potential flash flooding, the Weather Service said.

“Ida is fundamentally going to beryllium exiting New England by Thursday night,” said Dan Thompson, a meteorologist with the National Weather Service. “But it’s going to driblet dense rainfall earlier it leaves.”

Floodwater blocked entree connected Monday to a span starring to Jean Lafitte, La., implicit the Gulf Intracoastal Waterway.Credit...Edmund D. Fountain for The New York Times

The effects of Hurricane Ida volition beryllium felt acold from wherever it made landfall successful confederate Louisiana connected Sunday. As it moves crossed the Upper Ohio Valley and toward the Northeast aboriginal successful the week, it is apt to origin dense downpours, including up to 10 inches of rainfall successful immoderate parts of the Mid-Atlantic. More than 80 cardinal Americans were nether a flood ticker oregon advisory, with the bulk associated with Ida’s dense rains.

Although scientists are not yet definite astir how clime alteration affects each diagnostic of tropical cyclones, determination is wide statement that a warming clime volition bring much utmost and dense rainfall during storms. Warming increases the magnitude of h2o vapor successful the atmosphere, which successful crook tin nutrient much rain.

“We thin to deliberation that erstwhile tropical storms determination implicit onshore they tally retired of fuel,” said Rosimar Ríos-Barríos, a probe meteorologist astatine the National Center for Atmospheric Research. But the winds successful a tropical tempest tin widen thousands of miles from its center. In this case, adjacent arsenic Ida moves inland, Dr. Ríos-Barríos said, it volition proceed to gully successful precise warm, bedewed aerial from implicit the Gulf of Mexico and wrapper it astir its cyclone. That aerial tin lend to worsening rainfall.

“We are seeing this summation successful utmost rainfall for each types of events,” said Suzana Camargo, a clime idiosyncratic astatine the Lamont-Doherty Earth Observatory astatine Columbia University. “With hurricanes, we would expect much aggravated rainfall. That’s what happened with Ida.”

The magnitude of rainfall associated with a tropical cyclone has to bash with however hard it rains and for however long, which itself depends connected a cyclone’s speed. Rainfall from Hurricane Harvey, the wettest tropical cyclone connected record, dropped much than 60 inches successful eastbound Texas successful 2017. The dense rain, and consequent flooding, was caused successful portion by the hurricane stalling adjacent the coastline.

Ida was continuing to determination astatine astir 10 to 15 miles an hour, “an expected pace,” said Dr. Ríos-Barríos. The superior upwind strategy successful the United States moves successful a wide V-shaped pattern. Winds from the Western United States determination southbound toward the Gulf of Mexico, past crook toward the bluish Atlantic. But different upwind systems tin bring currents successful opposing directions, changing the absorption of a tempest oregon altering its speed.

As a tropical cyclone moves farther inland, its way is driven by a opposition successful temperature. Dr. Ríos-Barríos said that whitethorn beryllium 1 crushed cardinal Pennsylvania and West Virginia are expected to spot specified utmost rainfall, up to 10 inches successful immoderate places. There, the cyclone whitethorn make a lukewarm front, which volition assistance the air, make clouds, and nutrient much rainfall.

Many of these areas successful the storm's way person already received exceptional rainfall this summer, leaving immoderate rivers higher and soils much saturated, worsening the hazard of flooding. The Middle Tennessee Valley, which experienced flash flooding earlier this month that killed astatine slightest 20 people, whitethorn spot up to 4 inches of rainfall connected Tuesday and Wednesday.

Whether clime alteration made Ida and the scope of its flooding much likely, and if so, by however much, won’t beryllium known until scientists tin execute an attribution study, a benignant of probe that quantifies the links betwixt clime alteration and circumstantial utmost upwind events.

But scientists hold that Ida is simply a harbinger of aboriginal hurricanes. “If our satellite continues to lukewarm astatine the alarming gait that it is warming, past Ida is an illustration of what we mightiness expect to spot successful the future,” said Dr. Ríos-Barríos. “That’s precise scary.”

A antheral identified arsenic Benjamin Eugene Dagley, left, confronted Shaquille Brewster, an NBC reporter, arsenic Mr. Brewster covered Hurricane Ida.Credit...MSNBC

An apprehension warrant was issued connected Tuesday for a antheral who angrily confronted an NBC News newsman unrecorded connected TV portion covering Hurricane Ida successful Gulfport, Miss., screaming, “Report accurately!” successful his face.

The man, Benjamin Eugene Dagley, 54, of Wooster, Ohio, volition beryllium charged with 2 counts of elemental assault, 1 number of disturbing the bid and 1 number of violating an exigency curfew, the Gulfport Police Department said.

Mr. Dagley, who is connected probation for an incident in Ohio involving a break-in astatine a metallic plating shop, whitethorn besides beryllium successful usurpation of question restrictions that are portion of his probation, the constabulary said.

The Gulfport constabulary said Mr. Dagley had near the country by Tuesday and was traveling successful his achromatic Ford F-150 pickup truck. His determination was chartless arsenic of Tuesday night, the constabulary said.

It was unclear wherefore Mr. Dagley had been successful Gulfport — astir 1,000 miles from his location — a time aft a large hurricane deed the area. Phone calls placed to a fig listed arsenic belonging to Mr. Dagley were not returned connected Tuesday night.

A unrecorded study from NBC News shows that helium whipped his pickup motortruck disconnected the roadworthy and into the backdrop of Shaquille Brewster’s changeable arsenic the newsman described the effects of Hurricane Ida, which had made landfall connected the Gulf Coast connected Sunday.

Mr. Dagley tin beryllium seen stepping retired of his motortruck and moving toward Mr. Brewster, who pauses and says, “I deliberation we adjacent person a random idiosyncratic going around.”

“You’re reporting this accurately, right?” Mr. Dagley says.

Mr. Brewster shifts truthful that the h2o is his backdrop and continues to talk to the camera. Mr. Dagley tin beryllium heard yelling successful the background, though it is unclear what helium is saying, and helium is not disposable successful the shot.

A fewer seconds later, the country appears to escalate.

“I’m going to flip it backmost to you,” Mr. Brewster tells Craig Melvin, an anchor for NBC. “We person a idiosyncratic who needs a small assistance close now.”

Mr. Dagley is seen moving toward Mr. Brewster arsenic helium screams successful his face, “Report accurately!” and bumps into him earlier NBC cuts away. Mr. Melvin past tells viewers that the web volition cheque successful with Mr. Brewster aboriginal and that “there’s a batch of brainsick retired there.”

Later successful the broadcast, Mr. Melvin says Mr. Brewster is OK.

Mr. Brewster, who did not respond to emails and requests for remark connected societal media connected Tuesday night, said successful an Instagram post that helium was “overwhelmed by the emotion and support” aft “the wildest infinitesimal I’ve had connected air.”

“Our squad joked astir it afterwards, but it was without a uncertainty arsenic scary for america arsenic it was for you each watching,” helium said. “While that 1 study was interrupted, we were close backmost up successful the adjacent hr and volition proceed reporting arsenic we are present to do.”

Clevelend.com reported successful 2017 that Mr. Dagley had been arrested connected suspicion of breaking into an electroplating store that helium erstwhile owned and drilling holes into tanks holding unsafe chemicals. He pleaded blameworthy to vandalism, inducing panic and attempted assault, according to tribunal records from Cuyahoga County.

After the confrontation successful Gulfport, Mr. Melvin said connected Twitter, “This is beyond unacceptable and disgusting.”