Miami, Florida — Forecasters are warning that the 2026 Eastern Pacific hurricane season could become unusually active as a potential super El Niño and exceptionally warm ocean waters create conditions favorable for stronger and more frequent storms.
The season officially begins Friday, and climate experts say several warning signs are already pointing toward a potentially dangerous year across parts of the Pacific.
Why the Pacific Hurricane Season Starts Earlier
Unlike the Atlantic hurricane season, which begins in June, the Eastern Pacific hurricane season starts on May 15.
Meteorologists explain that tropical development conditions in the Pacific typically become favorable earlier in the year because the region avoids one major factor that often suppresses early Atlantic storms — dry, dust-filled air from the Sahara Desert.
The Eastern Pacific basin stretches from Mexico’s Pacific coastline westward into the Central Pacific Ocean, including areas near Hawaii.
While many storms remain over open water, some systems can still impact land areas across Mexico, Hawaii, and even the southwestern United States.
Super El Niño Could Turbocharge Storm Activity
Scientists are increasingly concerned about the growing likelihood of a super El Niño, an unusually strong warming event in the Pacific Ocean that can dramatically alter weather patterns around the globe.
Climate experts say the warming waters in the central and eastern equatorial Pacific are continuing to intensify and could eventually reach record levels.
Unlike the Atlantic Basin, where El Niño often weakens hurricane development, a strong El Niño tends to make conditions more favorable for tropical storms in the Eastern and Central Pacific.
Forecasters say this happens because El Niño reduces hostile wind shear and promotes rising air, both of which help storms strengthen.
Historical data compiled by tropical scientist Phil Klotzbach shows that during past strong El Niño years, the Pacific hurricane season typically produced:
- About four additional named storms
- Two to three more hurricanes
- One to two more major hurricanes
Major hurricanes are classified as Category 3 or stronger.
Mexico, Hawaii and Southwest U.S. Could See Impacts
Although most Eastern Pacific hurricanes move westward over open ocean and eventually weaken, some storms can curve northward toward populated areas.
Experts say tropical systems occasionally impact:
- Mexico’s Pacific coast
- The Baja California Peninsula
- Hawaii
- Parts of the Southwestern United States
Even when storms weaken before reaching land, their leftover moisture can trigger dangerous flooding and intense monsoon thunderstorms across states like:
- Arizona
- California
- Nevada
- New Mexico
- Utah
Meteorologists note that direct tropical storm impacts in California remain extremely rare, but remnants from Pacific systems have caused significant flooding events in the past.
Historic Storms Show Potential Danger
Forecasters are also pointing to several historic storms from previous strong El Niño years as reminders of what’s possible.
In October 2015, Hurricane Patricia became the most intense hurricane ever recorded in the Western Hemisphere, reaching 215 mph winds before striking Mexico’s Pacific coast.
In 1997, Hurricane Nora survived unusually far inland, bringing heavy rain, flooding, and widespread power outages to Southern California and the Lower Colorado River Valley.
Meanwhile, Hurricane Iwa devastated parts of Hawaii in 1982, causing hundreds of millions of dollars in damage and destroying thousands of homes.
These storms highlight how powerful Pacific hurricane seasons can become during strong El Niño patterns.
‘Wild Card’ Ocean Heat Wave Raising Concerns
Adding to forecasters’ worries is a massive marine heat wave currently spreading across the Pacific Ocean.
Meteorologists say ocean temperatures across large parts of the Eastern Pacific are already far above average for this time of year, with some areas reaching record warmth.
The unusually hot water extends:
- Off Mexico’s Pacific coast
- Near the U.S. West Coast
- Toward Hawaii
- Into tropical Pacific regions near the International Date Line
Experts believe this additional ocean heat could help storms strengthen faster and survive longer, especially if they begin moving northward.
While forecasters expect the Atlantic hurricane season to potentially remain quieter than normal, many now believe the Pacific may experience the opposite — a significantly more active and dangerous season in 2026.
Do you think coastal communities are prepared for a potentially extreme hurricane season? Share your thoughts in the comments below.
