Hailstorms pose a significant challenge for civil protection in many regions of Mexico, particularly in densely populated urban areas like Mexico City. The primary risks include the collapse of fragile roofs due to ice accumulation and the obstruction of drainage systems.
Understanding Hailstorms in Mexico
Hail forms exclusively in cumulonimbus clouds, where strong updrafts lift supercooled water droplets. These droplets freeze and merge, creating hailstones that can reach diameters exceeding 13 centimeters in extreme conditions.
The peak season for hailstorms in Mexico is during spring and summer, primarily affecting the central highlands, the Sierra Madre Occidental, and parts of the southern mountain ranges. In coastal and mountainous areas such as Veracruz, the season begins in March and ends in June.
Key Preventive Measures Before a Hailstorm
Before a hailstorm strikes, Civil Protection advises residents to:
- Monitor the weather: Stay updated through electronic media and official reports.
- Develop a family plan: Establish a meeting point and have emergency numbers readily available.
- Reinforce structures: Strengthen light roofs, domes, skylights, and glass panels by covering them with blankets or cardboard to cushion the impact of hail.
- Clear drainage systems: Clean roofs, gutters, and downspouts to prevent obstructions that could lead to flooding.
- Maintain surroundings: Ensure gutters, drains, and gardens are free of trash or debris.
- Identify alternative routes: Know alternative ways to get to or from home in case some streets become flooded.
- Inspect vehicles: Check car conditions before the rainy season to avoid problems during a hailstorm.
- Protect important documents: Have a plan to safeguard essential papers.
Actions to Take During a Hailstorm
During a hailstorm, the most crucial actions are to avoid exposure and remain calm. It is best to shelter indoors and avoid going outside, as hail, which can range from a few millimeters to the size of a golf ball, can cause severe injuries.
If caught outside during a storm, seek refuge in a safe, sturdy place away from domes, windows, or trees.
For those driving, it is advisable to reduce speed, maintain a minimum distance of half a meter from the vehicle ahead, and if precipitation is intense, pull over and turn on hazard lights.
During the event, follow these recommendations:
- Avoid crossing water currents: Water levels can rise suddenly and sweep away cars or people.
- Do not shelter under trees or unstable structures: These can collapse under the weight of hail.
- Stay informed: Tune into radio, television, or official social media channels for weather updates.
- Protect pets and plants: Bring them indoors from patios or rooftops.
Steps to Follow After a Hailstorm
Once the precipitation stops, it is crucial to inspect for damage to homes or vehicles. Removing accumulated hail from roofs and gutters helps prevent excessive weight and dangerous obstructions.
Among the most important post-storm steps are:
- Assess damage: Check the condition of domes, windows, skylights, and other vulnerable components.
- Clear hail and drains: Remove hail from roofs and clean drains to prevent leaks or collapses due to excess weight.
- Report electrical issues: Check for fallen cables or damage to electrical installations and report them immediately to Civil Protection.
- Notify authorities: Report any material damage or risks to authorities for assistance.
- Update emergency plans: Stay informed about post-event reports and update your family plan if necessary.
Care for Cars and Pets During a Hailstorm
Cars require special care, as larger hail can dent bodywork or break windows. It is recommended not to park vehicles under trees, billboards, or weak structures, as these could collapse under the weight of hail.
For pets, it is essential to keep them sheltered during precipitation. Providing them with adequate refuge or keeping them inside the home helps prevent injuries and reduces stress caused by the noise and impact of the ice.
Basic suggestions for protecting cars and pets include:
- Ensure pet safety: Keep pets safe and dry indoors.
- Shelter vehicles: Park cars under cover or in places protected by solid structures.
- Inspect vehicles: Check the vehicle’s condition, both inside and out, after the phenomenon to detect possible damage.
The frequency of hailstorms in Mexico City and other urban areas makes applying these guidelines essential, as they help protect people, animals, and material possessions. A careful review after the event helps prevent accidents and detect damage early, facilitating timely attention and reducing the possibility of greater risks.
Source: https://www.infobae.com/mexico/2026/04/16/como-protegerte-durante-una-granizada-recomendaciones-clave-de-proteccion-civil-para-cdmx-y-otras-ciudades-de-mexico/
