Tropical Storm Polo has barely had time to earn a name, and already it’s threatening to become the next major swell-maker in an extraordinary Eastern Pacific hurricane season.
As of Monday morning, Polo was about 255 miles south-southeast of Manzanillo, Mexico, packing sustained winds of 65 mph and moving east at roughly 5 mph. NOAA’s National Hurricane Center said the storm was undergoing “significant rapid intensification,” with a small eye developing beneath deep convection. Forecasters described conditions as “ideal for explosive intensification” over ocean temperatures topping 30.5°C (86.9°F).
The NHC expects Polo to become a hurricane Monday and potentially a major hurricane by Tuesday, followed by a sharp turn toward the west-northwest or northwest. Confidence in the exact track remains low, but the storm is forecast to stay near Mexico’s Pacific coast through midweek before moving south of Baja later in the week.
AccuWeather meteorologist Alex Duffus said Polo has the potential to “rapidly intensify into a powerful hurricane,” bringing flooding rain to Jalisco, Colima, and Michoacán beginning Tuesday. AccuWeather says the storm could even reach Category 4 strength while generating large swells near its center.
Related: Hurricane Marie 2026: Did the Swell Live Up to the Hype? (Photo Gallery)
When Could Southern California Feel It?
Mexico should begin seeing Polo-generated surf Tuesday, with dangerous waves and rip currents building through midweek. For Southern California surfers, the late-week into weekend window — roughly Thursday through Sunday — warrants watching, although no official SoCal wave heights have been officially forecasted yet.
And there’s an important caveat: Polo is compact. AccuWeather notes that could limit how much swell energy escapes toward California. Track direction will be everything.
Still, after Hurricane Marie recently sent surf up to 12 feet into Southern California and caused widespread erosion and coastal damage, surfers have good reason to keep checking the charts.
Moisture from Tropical Storm Polo will fuel several days of heavy rain across the Southwest, increasing the threat of flash flooding through midweek. Here’s the latest: pic.twitter.com/u0Au66RbeR
— The Weather Channel (@weatherchannel) September 21, 2026
FOX Weather notes that the rapidly strengthening El Niño has already helped fuel 18 named storms across the Eastern and Central Pacific, with more than two months remaining in hurricane season.
If Polo turns northwest and stays strong, Southern California could be staring at another round of serious tropical swell.
And somehow, this El Niño-fueled season still feels like it’s just getting started.
Related: The 1983 El Niño Destroyed California’s Coast — Could It Happen Again? (Video)
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