The Northeast Pacific has spun up 23 named storms this season, against 10 in the Atlantic

A count of 23 named storms in the Northeast Pacific this season, with the eastern and central basins combined, sits against just 10 in the Atlantic. Tropical Storm Vance, named around October 21, was the 23rd of the Pacific run and became the 11th major hurricane of the year by AccuWeather’s tally. The lopsided scoreboard follows the strongest El Niño on record, which has loaded the Pacific with energy and shredded Atlantic storms with wind shear.

Help yourself and the planet: The Cool Down makes it easy to help yourself while helping the planet, with smart, simple changes to save more and waste less in your everyday life.

Get The Cool Down →

We may earn a commission if you sign up.

Counts differ by source, and the gap between 23 and 24 deserves an explanation before the storms themselves.

From Amanda to Vance: the 23 Pacific storms

The eastern list runs alphabetically: Amanda, Boris, Cristina, Douglas, Elida, Fausto, Genevieve, Hernan, Iselle, Julio, Karina, Lowell, Marie, Norbert, Odalys, Polo, Rachel, Simon, Trudy and Vance, which makes 20 names. Three more storms drew Central Pacific names, Nolo among them, to reach AccuWeather’s count of 23 named storms across the combined basins as of Vance. Genevieve, Lowell and Polo each reached Category 5. NASA’s Earth Observatory had counted 20 named storms in the northeast and central Pacific as of September 28, against a 1991-2020 average of 13.5 by that date, and 9 hurricanes against an average of 7.4.

The Weather Trader newsletter listed 24 named storms and an accumulated cyclone energy of 355 for the Northeast Pacific on November 4. National Hurricane Center products from that day show no active cyclone in either basin,. The next eastern name in line after Vance is Winnie, and the outlook lists only disturbances that have yet to earn one. A 24th named storm did not turn up in the agency products or the news record, so the tally here stays at 23.

El Niño shear and the Atlantic’s ten storms

On the other side of the ledger, the Atlantic’s 10 are Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo, Hanna, Isaias and Josephine. The Boston Globe called Josephine, a subtropical storm that turned post-tropical on October 22 after peaking at 65 mph, “the 10th named storm of this eerily quiet Atlantic hurricane season.” Isaias was the only hurricane, and its early-October upgrade was the latest first hurricane of the satellite era. The Globe blamed the strong El Niño and the above-average wind shear it brings to the Atlantic tropics, and it added that New England had several near misses, including a late-September nor’easter that could have become a Hurricane Bob-like storm had it formed farther south. The same piece put the Pacific at 23 named storms, 12 hurricanes and 8 major hurricanes, while AccuWeather counts 11 majors, a reminder that tallies diverge by agency and by how the central basin is folded in.

Colorado State University’s Phil Klotzbach told the Associated Press that “This year just everything that forms is just lasting a long time.” University of Arizona atmospheric scientist Kim Wood said that “It feels like almost everything that can spin up does spin up.” The AP report said the combined Pacific passed the 2018 energy record on October 11, while Atlantic energy stood under 18 percent of normal for the date.

The Pacific’s toll on land has been heavy. The Weather Network, citing Colorado State University data, reported on October 11 that 21 storms had formed by then, 11 had become hurricanes, and all but two of those reached major strength. Ten storms had affected land, with Hawaii and Mexico hit hardest, and Hilo airport recorded more than 940 millimeters of rain between August 1 and September 30, over double the average for those months.

The AP added that Hurricane Polo set a record for time at Category 5, two and a half days, and that the last five Pacific storms at that point, Nolo, Odalys, Polo, Rachel and Simon, all reached major hurricane strength with winds of at least 111 mph.

Energy totals and the November 30 finish

Accumulated cyclone energy, the metric that blends storm strength and duration, is the cleaner gauge of the divide. AccuWeather put the Pacific near 335 as of its October 26 update, a record. The Atlantic, by the Globe’s reckoning, is on course for its lowest total since 1950. Both seasons officially run through November 30, which leaves a few weeks for the numbers to move.

The National Hurricane Center’s outlook issued at 4 a.m. PST on November 4 shows what could still change. A disturbance well southeast of Hawaii carries a 70 percent chance of becoming a depression within seven days, and a broad low off Central America has a 50 percent chance by the weekend. In the Atlantic, a broad low south of Bermuda has a 50 percent chance of gaining subtropical traits, though the center expects conditions to turn unfavorable by early next week; its main page listed no active cyclones in either basin that morning. Whether any of the three earns a name, pushing the Pacific past 23 or the Atlantic to 11, is the open question.

This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.

Help yourself and the planet: Get The Cool Down →

We may earn a commission if you sign up.