Tropical Storm Alvin: Will it Continue to Impact the Weekend? Here’s the Forecast for Saturday and Sunday

Web Editor

May 31, 2025

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What to Expect from Alvin

The tropical storm Alvin, which has brought heavy rains, strong winds, and high waves to western regions of the country, will begin to weaken over the weekend. However, its effects will still be felt in some areas, according to a 96-hour extended forecast by the National Weather Service (SMN) released on Friday at 14:00 hours.

Saturday, May 31

By Saturday, May 31, Alvin will degrade to a remnant low-pressure area and be located south of Baja California Sur. Despite its weakening, its circulation will continue to produce cloudiness and weather disturbances across western parts of the country, resulting in:

  • Localized heavy rainfall in Baja California Sur, Sinaloa, Nayarit, and Jalisco
  • Wind gusts of 50 to 70 km/h
  • High waves of 2.0 to 3.0 meters along the aforementioned coasts

Saturday Weather Forecast

In addition to Alvin, other weather systems will also influence the country’s climate conditions on Saturday:

  • A low-pressure trough in the southeast, combined with moisture from the Pacific and Gulf of Mexico, will favor showers and very heavy rainfall in central, eastern, southern, and southeastern regions, including the Valley of Mexico.
  • A stationary frontal system in the northern and northeastern parts of the country will bring heavy rainfall and winds to those regions.

  • A mid-level and upper-level cyclonic circulation will cause precipitation in Baja California and isolated showers in Sonora.

Maximum temperatures for Saturday:

  • 40 to 45 °C in Sonora, Sinaloa, Guerrero, Campeche, and Yucatán
  • 35 to 40 °C in most of the northern, western, southern, and southeastern regions, including areas in Jalisco, Colima, Michoacán, Oaxaca, and Chiapas

Sunday, June 1 Forecast

For Sunday, the effects of Alvin will be replaced by a new tropical wave and other systems that will maintain unstable weather conditions across the country:

  • Heavy to very heavy rainfall in Jalisco, Michoacán, the State of Mexico, and Guanajuato
  • Showers and heavy rainfall in most of the central, northern, and southern regions, including Mexico City
  • Waves of 2.0 to 3.0 meters along the Pacific coasts from Baja California Sur to Chiapas
  • A warm to very warm atmosphere, with temperatures reaching up to 45 °C in northernwestern and southeastern entities

Recommendations

The SMN warns that intense rainfall can lead to flooding, landslides, and river overflows, while strong winds may cause the fall of trees and lightweight structures. Furthermore, high waves pose a risk for maritime activities along the Pacific coasts.

The population is advised to stay informed about alerts from the National Weather Service and follow instructions from Civil Protection.

Key Questions and Answers

  • What is the current status of Tropical Storm Alvin? Alvin will begin to weaken over the weekend but still impact some regions with heavy rains, strong winds, and high waves.
  • What weather conditions can be expected on Saturday? Alvin will degrade, but other weather systems will bring heavy rainfall, strong winds, and high waves to various regions. Temperatures will range from 40 to 45 °C in some southern states and 35 to 40 °C in most of the country.
  • What is the weather forecast for Sunday? A new tropical wave and other systems will maintain unstable weather conditions, with heavy to very heavy rainfall in several states, warm temperatures, and high waves along the Pacific coasts.
  • What precautions should the public take? Stay informed about alerts from the National Weather Service and follow Civil Protection instructions, as intense rainfall can cause flooding, landslides, and river overflows, while strong winds may lead to falling trees and lightweight structures. High waves also pose risks for maritime activities.