El Niño and hurricane season: What it means and how similar circumstances have played out

MIAMI, Flo. – A large displacement successful planetary clime patterns is underway, arsenic the tropical Pacific trends toward a stronger El Niño and distant from La Niña—a alteration with important implications for the 2026 Atlantic hurricane season.

In astir cases, a beardown El Niño acts to suppress hurricane enactment by expanding wind shear successful the atmosphere implicit the Atlantic Ocean, which tin disrupt processing storms and marque it harder for hurricanes to signifier and strengthen.

'SUPER EL NIÑO' BREWING AS LA NIÑA FADES AHEAD OF PEAK HURRICANE SEASON

El Niño hurricane effect successful the Atlantic vs. successful the Pacific.

(FOX Weather)

Given the forecast for this year, this hurricane play whitethorn not beryllium truthful straightforward. Although successful an El Niño, the ambiance acts to suppress processing storms, the menace of unsafe hurricanes is inactive precise real.

Sea aboveground temperatures successful the Atlantic stay adjacent oregon somewhat supra average, which provides substance for storms, mounting the signifier for a conflict betwixt unfavorable wind conditions caused by El Niño and the warmer ocean waters that fortify brewing storms.

NASA video shows the presumption from the International Space Station of Hurricane Idalia implicit Florida and Georgia connected Wednesday, August 30, 2023. 

(NASA)

In the 2023 hurricane season, during a akin El Niño acceptable up, grounds lukewarm oversea aboveground temperatures offset the accepted antagonistic impacts from El Niño. Though El Niño informs long-range forecasts to amended recognize the atmospheric environment that plays a large relation successful the enactment of the storms that are remembered for decades, the hurricane play is defined by overmuch much than conscionable El Niño oregon La Niña.

Even successful years with a beardown El Niño, the hazard is ne'er zero. These patterns whitethorn bring less storms overall—but it lone takes 1 monster hurricane to permission a lasting people for years to come.

Recent El Niño year

Since 1990, determination person been 7 years with a comparable El Niño to what immoderate of the much assertive forecasts are suggesting for 2026. These were years with either a borderline beardown El Niño oregon events that pushed into "super" El Niño territory. Those years were 1991, 1994, 1997, 2002, 2009, 2015 and 2023.

On average, those seasons produced 11 named storms, 4 hurricanes and 2 large hurricanes (Category 3+).

Atlantic tropical enactment stats.

(FOX Weather)

That is beneath the semipermanent Atlantic averages of 14 named storms, 7 hurricanes and 3 large hurricanes.

The takeaway is simple. Even during a "Strong El Niño," erstwhile wide enactment is reduced, it lone takes 1 tempest to make important impacts.

1991 Hurricane Season: The Perfect Storm

The astir impactful tempest of the 1991 hurricane play remains a important meteorological lawsuit owed to its uncommon formation.

HOW HIGH PRESSURE AND LOW PRESSURE DRIVE THE WEATHER

A high-pressure system, a North Atlantic acold beforehand and the remnants of Hurricane Grace merged into a single, monolithic tempest to make "The Perfect Storm."

Notable El Niño Hurricane Season: The 1991 hurricane play produced "The Perfect Storm."

(FOX Weather)

The tempest was capable to intensify implicit the lukewarm waters of the Gulf and instrumentality an unexpected crook backmost toward the U.S. coast.

Although the tempest ne'er made landfall successful the U.S., it generated hurricane-force winds and monolithic waves that decimated coastal New England, sidesplitting six unit members from the sportfishing vas Andrea Gail, which would aboriginal spell connected to animate the Hollywood movie "The Perfect Storm" starring George Clooney.

Sebastian Junger, right, writer of "The Perfect Storm" poses with actors Mark Wahlberg, center, and George Clooney connected "The Perfect Storm" movie set. The movie is based connected "The Perfect Storm" that occurred successful October 1991 disconnected the seashore of Nova Scotia.

(Claudette Barius/Warner Bros via Online USA / Getty Images)

Despite hurricane strength, the tempest was ne'er officially named.

1994 Hurricane Season: Tropical Storm Alberto

Though Tropical Storm Alberto never, successful meteorological terms, met the indispensable spot to beryllium considered a hurricane, the harm it inflicted connected the southeastern U.S. remains a benchmark disaster. 

Primarily remembered for the storm's "stalling" behavior, the tempest made landfalls and, arsenic a decaying system, hovered implicit Georgia and Alabama for days, dumping upwards of 20 inches of rain successful immoderate areas.

Notable El Niño Hurricane Season: The 1994 hurricane play produced Tropical Storm Alberto, which stalled implicit the Southeastern U.S. for days, sidesplitting 33. 

(FOX Weather)

The tempest triggered record-breaking crests crossed galore stream basins, resulting successful utmost flooding crossed parts of the region. In the end, the wide inundation near 33 dead.

1997 Hurricane Season: Hurricane Danny

Though the 1977 hurricane play was considered a quiescent year, Hurricane Danny made landfall successful southeast Louisiana.

Notable El Niño Hurricane Season: The 1997 hurricane play produced Hurricane Danny, which made 2 landfalls successful the US.

(FOX Weather)

Danny made a 2nd landfall adjacent Mobile Bay, bringing utmost rainfall to Alabama, with implicit 3 feet falling successful Dauphin Island.

Only 8 storms formed during the 1997 Atlantic hurricane season; the different 7 did not person immoderate onshore impacts.

Hurricane Danny outer image.

(NOAA)

2002 Hurricane Season: Hurricanes Isidore and Lili

Back-to-back storms made the 2002 hurricane play 1 to remember, particularly successful Louisiana.

WHAT IS A TROPICAL STORM?

Hurricane Isidore was a almighty Category 3 tempest astatine its peak, bringing important impacts to Jamaica, Cuba and the Yucatán Peninsula. By the clip it approached Louisiana, it had weakened to a tropical storm, but inactive produced dense rainfall and flooding crossed the region.

Notable El Niño Hurricane Season: The 2002 hurricane play produced uncommon back-to-back hurricanes (Isidore and Lili) that caused wide harm crossed parts of the Caribbean and the Deep South.

(FOX Weather)

Just days later, Hurricane Lili followed a akin path. Lili rapidly intensified into a Category 4 hurricane implicit the then-named Gulf of Mexico earlier weakening up of landfall, yet landing successful Louisiana arsenic a Category 1 hurricane.

Remarkably, Lili made landfall lone 7 days aft Isidore impacted the aforesaid wide area.

An Exxon presumption is damaged by Tropical Storm Lili October 3, 2002 successful New Iberia, Louisiana. 

(Photo by Joe Raedle/Getty Images / Getty Images)

Combined, these 2 storms caused wide harm crossed parts of the Caribbean and the Deep South, and were liable for 37 fatalities.

2009 Hurricane Season: Hurricane Ida

With lone 9 named storms, the 2009 Atlantic hurricane play was comparatively quiet.

One notable strategy that twelvemonth was Hurricane Ida, which concisely reached Category 2 spot arsenic it moved disconnected the seashore of the U.S., ne'er making landfall arsenic an authoritative tropical cyclone.

Notable El Niño Hurricane Season: The 2009 hurricane play produced Hurricane Ida, which aboriginal developed into a nor'easter.

However, Ida's communicative did not extremity there. The remnants of the tempest transitioned into a almighty nor'easter, aboriginal dubbed "Nor'Ida."

The November 2009 Mid-Atlantic nor'easter (also referred to arsenic "Nor'Ida") was a almighty autumn nor'easter that caused wide harm on the eastbound seashore of the United States.

(NOAA)

The strategy went connected to nutrient impacts crossed the Southeast and East Coast, with tempest surge levels, rainfall and coastal impacts comparable to that of a tropical cyclone.

2015 Hurricane Season: Hurricane Joaquin

Hurricane Joaquin was a existent wildcard.

It stalled and looped implicit the Bahamas arsenic a almighty Category 4, becoming 1 of the region’s astir damaging storms. While it ne'er made U.S. landfall, it helped trigger historical flooding crossed the Southeast.

Notable El Niño Hurricane Season: The 2015 hurricane play produced Hurricane Joaquin, and though it didn't marque landfall successful the U.S., it helped trigger historical flooding crossed the Southeast.

(FOX Weather)

As Joaquin lingered offshore, it funneled heavy tropical moisture into the region. At the aforesaid time, a non-tropical strategy and stalled beforehand on the Carolina seashore acted similar a conveyor belt—lifting that moisture into a relentless "fire hose" of rain.

People locomotion successful the h2o astatine a flooded thoroughfare successful downtown Charleston, SC connected October 03, 2015. Much of the US southeast was nether water, deluged by rains from Hurricane Joaquin.

(MLADEN ANTONOV/AFP via Getty Images / Getty Images)

The result: catastrophic flooding, particularly successful South Carolina. Columbia and Charleston shattered multi-day rainfall records, with Charleston mounting a caller wettest October successful conscionable 4 days.

Even without landfall, Joaquin became 1 of the astir impactful upwind events of 2015.

2023 Hurricane Season: Hurricane Idalia

The 2023 play defied expectations for a processing El Niño, becoming the Atlantic’s 4th astir progressive connected record. Exceptionally lukewarm water waters helped offset El Niño’s accustomed suppressing effects, fueling tempest development.

Notable El Niño Hurricane Season: The 2023 hurricane play was highly active, producing 20 storms arsenic grounds lukewarm waters offset accepted El Niño effects that typically suppress tempest enactment and intensification.  

(FOX Weather)

Hurricane Idalia was the season’s standout, rapidly intensifying into a Category 4 earlier landfall successful Florida’s Big Bend.

DRONE VIDEO REVEALS DAMAGE, FLOODING FROM HURRICANE IDALIA LANDFALL NEAR KEATON BEACH

A fallen histrion obstructs a roadworthy successful the aftermath of Hurricane Idalia connected August 31, 2023 successful Perry, Florida.

(Sean Rayford/Getty Images)

It produced grounds tempest surge from Tampa Bay to the Big Bend and, astatine the time, became the strongest tempest connected grounds to onslaught the region—until Hurricane Helene surpassed it the pursuing year.