Hurricane Polo made landfall in Baja California Sur, Mexico, on Monday evening as a Category 3 storm with sustained winds of 115 mph (185 kph), according to the U.S. National Hurricane Center (NHC). Forecasters warned of life-threatening flooding, mudslides, and storm surges across the peninsula and northern mainland Mexico through Tuesday.
Tropical Storm Odalys is simultaneously generating dangerous surf conditions along the Southern California coast, with wave heights reaching 4 to 7 feet in Los Angeles and Ventura counties and up to 7 feet at the Wedge in Newport Beach by Monday and Tuesday. The swells coincide with astronomical high tides, raising the risk of coastal flooding and erosion in vulnerable areas.
Immediate Threats and Evacuations
Authorities in Baja California Sur suspended in-person school and work activities on Monday and Tuesday, with evacuations ordered in high-risk zones such as Puerto San Carlos. Residents boarded up homes and reinforced embankments as the storm approached, while dozens were evacuated to shelters in Ciudad Constitución. In Cabo San Lucas, beach access was restricted, and some restaurants closed ahead of the storm.
The National Water Commission (Conagua) reported that Polo’s eye was 140 km southwest of Santa Rosalía at 9:45 a.m. Monday, moving northeastward. Forecasters expect the storm to weaken slightly before a second landfall in Sonora on Tuesday, bringing heavy rain to Sinaloa and Chihuahua.
U.S. Impact: Coastal Hazards and Flooding Risk
The National Weather Service (NWS) forecast 4 to 7-foot waves along the Southern California coast through midweek, with localized flooding possible in low-lying areas. El Niño conditions have elevated sea levels by nearly a foot, exacerbating the threat. Beaches in Long Beach, Malibu, and Avalon Bay are particularly vulnerable due to prior erosion damage.
Meanwhile, moisture from Polo is expected to fuel widespread flooding in the U.S. Southwest, particularly in New Mexico, Arizona, and Texas. The Southwest Monsoon and Tropical Storm Odalys will combine with Polo’s remnants, increasing the risk of dangerous rainfall totals in already saturated regions.
Forecast and Timeline
- Monday, September 28: Polo makes landfall in Baja California Sur as a Category 3 hurricane; Tropical Storm Odalys generates high surf in Southern California.
- Tuesday, September 29: Polo weakens but brings heavy rain to Sonora, Chihuahua, and Sinaloa; U.S. Southwest faces increased flood risk from combined storm systems.
- Wednesday, September 30: Polo’s remnants move inland, with residual moisture spreading into the central U.S.
Preparations and Warnings
- Mexico: Civil Protection agencies issued evacuation orders for coastal and flood-prone areas. Residents stockpiled water, food, and emergency supplies ahead of the storm.
- U.S.: The NWS issued coastal flood and high surf advisories for Southern California, warning of shallow seawater flooding over roads and parking lots.
- Hawaii: Hurricane Nolo, now a Category 4 storm, moved away from the islands but left behind high surf advisories and residual flooding risks.
Background: Active Pacific Hurricane Season
The 2026 Pacific hurricane season has been unusually active, with Polo and Odalys following a series of intense storms. The ongoing El Niño has contributed to warmer ocean temperatures, fueling storm development. Forecasters note that Polo’s rapid intensification—reaching 180 mph winds at its peak—is extremely rare and aligns with broader trends of increased tropical cyclone activity in the Pacific during strong El Niño years.
Key Figures and Data
- Polo’s wind speeds: 115 mph (185 kph) at landfall; gusts up to 220 kph reported.
- Rainfall projections: 100–200 mm (4–8 inches) in Baja California Sur, with isolated totals up to 250 mm (10 inches).
- Wave heights: 4–7 feet in Southern California; 7 feet at the Wedge (Newport Beach).
- Storm surge: Up to 7 feet in Baja California Sur, with destructive waves possible.
- Evacuations: Dozens in Puerto San Carlos; shelters opened in Ciudad Constitución.
Long-Term Implications
Meteorologists warn that the combination of Polo, Odalys, and El Niño conditions could lead to prolonged flooding risks in the U.S. Southwest and continued coastal erosion in California. The National Hurricane Center emphasized that even weakened storms can produce dangerous inland flooding, particularly in mountainous regions.
Officials urged residents in affected areas to monitor updates from local authorities and prepare for extended power outages, road closures, and disrupted services.