After Forming, Tropical Storm Alvin Moves Through the Pacific and Triggers Alerts in Six States

• Tropical Storm Alvin Advances
• Waves and Wind Along the Coast
• Six States on Alert

Tropical Storm Alvin is moving forcefully along Mexico’s Pacific coast, bringing heavy rains and adverse conditions to at least six states across the country.

According to the National Meteorological Service (SMN), the storm was located on Friday 445 kilometers southwest of Playa Pérula, Jalisco.

It was also 665 kilometers south-southeast of Cabo San Lucas, Baja California Sur, moving north-northwest at a speed of 17 kilometers per hour.

Alvin is maintaining sustained winds of 85 kilometers per hour, with gusts reaching up to 100 kilometers per hour, generating high waves and strong wind gusts in several coastal regions.

Six States on Alert Due to Tropical Storm Alvin

Authorities warn that Jalisco, Colima, and Michoacán will be the most affected states, with very heavy rainfall expected, accumulating between 50 and 75 millimeters.

Meanwhile, in Nayarit, strong rains are forecast with expected totals between 25 and 50 millimeters, according to the EFE agency.

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In Baja California Sur and Sinaloa, intermittent showers are expected, with lower but persistent accumulations.

The forecast also includes winds of 40 to 50 kilometers per hour along the western coasts, with gusts potentially reaching between 60 and 80 kilometers per hour in exposed areas of Jalisco, Colima, and Michoacán.

Waves and Winds Impact the Coasts

In Baja California Sur, Sinaloa, and Nayarit, winds of lesser intensity are expected, though maximum gusts of up to 60 kilometers per hour may occur along the coasts.

Another major concern is the wave activity, which could exceed 5 meters in some areas of the region.

Waves of 3 to 4 meters are forecast in Jalisco, Colima, and Michoacán, with the possibility of increasing to 5 meters as the system progresses.

Along the coasts of Nayarit, wave heights could reach 4 meters, while in Baja California Sur, waves of up to 3 meters are expected.

Alvin Not Expected to Make Landfall but Remains Under Watch

The SMN stated that although Alvin is not expected to make landfall, its parallel trajectory along the coast could intensify weather conditions in vulnerable areas.

In fact, the storm formed on Thursday off the coasts of Colima and Michoacán, becoming the first storm of the 2025 season in the Pacific Ocean.

The National Water Commission (Conagua) reported that by Saturday, Alvin could weaken into a low-pressure channel, gradually reducing its strength.

Nevertheless, Civil Protection and meteorological authorities urged the population to remain alert to possible landslides, flooding, or wind-related damage.

Tropical Storm Alvin Strengthens Off the Mexican Pacific

“People are advised to exercise extreme caution due to rain, wind, and wave activity, including maritime navigation, and to follow the recommendations issued by Civil Protection authorities,” the SMN stated.

Although Alvin does not pose a direct threat to national territory, its path has forced the reinforcement of preventive measures in ports, coastal communities, and rural areas near rivers.

This phenomenon comes just months after a 2024 hurricane season marked by several landfalls in Mexican territory.

In the Atlantic, Hurricane Beryl and Tropical Storm Chris struck in July, while in June, Tropical Storm Alberto caused six deaths in Nuevo León.

Meanwhile, in the Pacific, Hurricane John made landfall as a category 3 storm in September, leaving 29 dead in Guerrero, Oaxaca, and Michoacán.

The recent experience with these cyclones highlights the importance of taking every new weather event seriously—even when direct landfall is not predicted.

Rainfall from storms like Alvin can cause rivers to overflow, trigger landslides in mountainous areas, and impact communities with fragile infrastructure.

In addition, state authorities are working in coordination with the federal government to implement emergency protocols in case the system evolves unexpectedly, according to EFE and El Heraldo de México.