The intensity of the rains is caused also due to the Inter-Tropical Convergence Zone, ICZ, which is located near the country's Pacific Coast.
- Red Crossphoto -

Published on Monday, August 30, 2021
By the A.M. Costa Rica staff

The National Emergency Commission alerted about an increase in rains due to the passage of two tropical waves, the #29 and #30 of the green season.

Natural phenomenon #29 already began crossing the country since Sunday, causing downpours in the Caribbean Coast, the Central and South Pacific Coast and the northern zone border with Nicaragua, according to the Weather Institute report.

Specialists are observing wave #30 which is located over Panama and could hit the country this  evening. Its effects are expected to continue over the national territory on Tuesday.

The intensity of the rains is caused also due to the Inter-Tropical Convergence Zone, ICZ, which is located near the country's Pacific Coast.
The ICZ, known by sailors as the doldrums or the calms due to the dull windless weather, is the area where the northeast and southeast trade winds converge. The zone appears as a band of clouds, usually thunderstorms, that circles the globe near the Equator. This caused the overflowing of rivers and floods mainly in the mountainous areas of the country.

Orange Alert in the Pacific Coast (Guanacaste and Puntarenas provinces). The alert is activated when the high-risk situation can cause an emergency to the people in a specific area.

Yellow Alert status continues in place for the rest of the country. This alert prepares rescue forces for an increased danger of a natural phenomenon that may impact the population in a specific region.

Specialists warn that in the mountains of the northern zone, Central Valley, and southern zone, there is high accumulation of rainwater in the soil for possible flooding and landslides.

Authorities call on the public to take the following precautionary measures to avoid emergencies:

- Avoid aquatic activities in rivers (located in Emergency zones) such as swimming, diving, rafting, canyoning, river bugging, kayaking, cliff jumping, fishing, sailing, among others.

- Stay informed about alerts issued by the authorities.

- People living in mountain areas should increase precautionary measures against a possible landslide or material falling from the high areas of the hills.

- Have an emergency evacuation plan in the community, work and home.

- Drivers must increase precautions for heavy rain and fog.

- Take precautionary measures in case of electrical storms.

- Be alert in vulnerable areas to flooding due to sewer saturation or an increase of river flow.

- In case of a thunderstorm, take refuge in a safe place.

- In case of strong gusts of wind, be alert to possible falling tree branches or electrical cables.

- In the event of a landslide, do not walk on the debris, stay away from affected areas, and do not return home until authorities verify that it is a safe place.

Call 911 to report any possible flooding, fallen trees or landslides.

A.M. Costa Rica urges readers to share this alert with their contacts.

Recently the Commission announced a budget of $3,085,111 to address emergencies caused by nonstop thunderstorms in July.

What emergencies have been reported in your community caused by the rains?  We would like to know your thoughts on this story. Send your comments to


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