Hurricane Polo exploded into a Category 5 storm in the Pacific with 160 mph winds after gaining 110 mph in a single day, and its moisture is now driving life-threatening flash floods across New Mexico.
The storm sat roughly 205 miles south of Zihuatanejo, Mexico, on Tuesday morning, barely 24 hours after first reaching hurricane strength. Its sustained winds had jumped 110 mph in that span, a pace of intensification that forecasters compared to Hurricane Otis, which FOX Weather reported devastated Acapulco in 2023. Hurricane-force winds extended 35 miles from Polo's center, with tropical-storm-force winds reaching 90 miles out.
Polo is not expected to strike the United States directly. But its moisture is already streaming north into the desert Southwest, supercharging monsoon thunderstorms across New Mexico at a moment when that state can least afford it. Three people died near Newcomb, New Mexico, roughly a week earlier in flooding linked to a separate tropical disturbance. Now the same region faces another round.
The National Weather Service office in Albuquerque issued a blunt warning Tuesday.
"Widespread heavy rainfall will lead to a risk of life-threatening flash flooding across much of the state."
Southern New Mexico, including Las Cruces, faced a Level 3 out of 4 flash flood threat on Tuesday. By Wednesday, that elevated risk was forecast to shift north and east to cover Roswell, with heavy rain expected across Albuquerque as well. The monsoon thunderstorms were expected to persist through Thursday.
The Southwest has already been punished this season. On September 16, the Maricopa County Sheriff's Office in Arizona deployed a helicopter to pull two motorists from floodwater, a rescue captured in images credited to the Goodyear Fire Department. Those floods came before Polo's moisture even entered the picture.
Residents in southern and central New Mexico now face a grim repeat: the same communities hit days ago could see another surge of water through the same washes and arroyos. For people living in flood-prone areas with limited infrastructure, the difference between a Level 2 and a Level 3 threat is not abstract. It is the difference between a manageable storm and one that kills.
The Mexican government issued a Tropical Storm Warning from Tecpan De Galeana to Punta San Telmo along the southwestern coast, and a Tropical Storm Watch from just west of Punta San Telmo to Playa Perula. The Associated Press reported that Mexican authorities suspended classes in coastal areas, while residents in the already hurricane-battered states of Guerrero and Oaxaca monitored the storm closely. Heavy rain of three to six inches was forecast for Guerrero and Michoacán, with smaller amounts for Oaxaca, Colima, and Jalisco.
The National Hurricane Center called Polo "extremely dangerous," with maximum sustained winds reaching 165 mph at midday, a figure slightly higher than the 160 mph recorded earlier Tuesday morning. Destructive hurricane-force winds, coastal storm surge, torrential rain, and catastrophic mudslides all threatened Mexico's southwestern and west-central coastline.
Late Tuesday, forecasters expected Polo to make a sharp turn to the northwest, pulling it away from the Mexican coast. But forecast models beyond five days remained uncertain about whether the storm would eventually approach Baja California. If it does, Polo is expected to weaken to Category 1 or 2 strength by that point, still a dangerous hurricane, but a far cry from the 160-plus-mph monster churning offshore Tuesday.
Polo is the third Category 5 hurricane in the Eastern and Central Pacific this season, joining Genevieve and Lowell. The last time the basin produced three Category 5 storms in a single year was 2018. Breitbart reported that El Niño conditions have driven the production of 18 named storms across the Pacific Basin this season, a pace that has kept forecasters and emergency managers scrambling.
Hawaii has felt the consequences directly. Hurricane Lowell made a direct hit on the islands earlier this season. Hurricane Lala, a Category 1 storm, brought heavy rain and strong winds to the Big Island on August 17 without making landfall but still caused extensive damage to towns along the island's southern end. In all, three tropical systems have struck or brushed Hawaii this season, a volume that would be unusual in a normal year.
And the Pacific is not finished. The National Hurricane Center was tracking four areas of tropical activity simultaneously as of Tuesday, including Polo itself.
More than 1,400 miles southwest of Baja California, Tropical Storm Odalys churned with sustained winds of 65 mph. Forecasters expected Odalys to strengthen into a hurricane by Tuesday night or Wednesday, and by the end of the workweek, models showed the storm turning back toward Mexico.
FOX Weather Hurricane Specialist Bryan Norcross raised the possibility that the two storms could interact in the coming days.
"Some computer forecasts show Odalys interacting with Polo in some fashion in several days."
Norcross added a note of caution about what that interaction could mean for forecasting.
"If predictions are right, Polo will be the stronger storm and will dominate, but each can still influence the track of the other, which adds uncertainty to the forecast."
Two hurricanes influencing each other's track is one of the more difficult scenarios for forecasters to model. It means the confidence window for where either storm ends up narrows considerably, and communities in both Mexico and the U.S. Southwest may have less lead time to prepare.
As if the Pacific had not delivered enough, the remnants of former Tropical Depression Fifteen-E sat well east-southeast of Hawaii on Tuesday, with forecasters watching for the system to redevelop. If it does, the Big Island, particularly the city of Hilo, could see eight to 12 inches of rain through the weekend, with wind gusts of 30 to 40 mph. Heavy rain was expected to begin across the islands by Wednesday, with the heaviest totals arriving late Thursday.
Hawaii has already absorbed punishing blows this season. Adding another multi-day rain event on top of the damage from Lowell and Lala would strain emergency resources on an island chain that imports nearly everything it needs and has limited road networks for evacuation or supply delivery.
Meanwhile, the NHC flagged a new area of potential tropical development south of the Gulf of Tehuantepec, giving it medium odds of forming over the next seven days. The system does not yet have a name or designation.
Hurricane Hunters flew a reconnaissance mission into Polo on Monday and were scheduled for another flight Tuesday. Andy Hazelton, posting on the social media platform X after the first flight, described a storm whose core was still organizing even as its pressure plummeted.
"Good first flight into #Polo today. The pressure had fallen pretty quickly, but it looks like the core is still working out some kinks. Almost looks like an eyewall replacement cycle although it's a bit early in the process for that."
An eyewall replacement cycle, a process in which a hurricane's inner eye wall weakens while a new one forms around it, can temporarily slow intensification before the storm reorganizes and potentially strengthens again. The fact that Polo was already showing signs of this process while still gaining strength underscored just how powerful the storm had become in such a compressed window.
Three people dead in New Mexico. Two motorists pulled from floodwater in Arizona. Classes canceled along Mexico's coast. Hawaii bracing for its fourth tropical impact of the season. And the Pacific is still producing storms at a pace not seen in eight years. The people who live with the consequences of these storms do not need a lecture about preparedness, they need the infrastructure, the warning systems, and the emergency response to match the threat that keeps arriving at their door.
