Weather warnings

Jul

15

Informative Weather Advisory

Saharan Dust and Strong Wind Gusts Affecting Several Regions

July 15, 2025
9:00 am

  A dry air mass accompanied by Saharan dust is positioned over the Caribbean Sea and Central America. Additionally, a marked atmospheric pressure gradient is accelerating the trade winds...

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Jul

14

Aviso Meteorológico

Onda tropical #15 transitando este lunes por el país

14 de julio de 2025
10:00 AM

Diagnóstico: La onda tropical #15 ingresó al país durante la madrugada. Aunque es una onda débil, ha generado lluvias y tormentas en zonas marítimas del Pacífico Central, el Caribe y en áreas...

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Jul

13

Aviso Meteorológico Informativo

Tropical Wave #15 transiting over Costa Rica early Monday morning

July 13h, 2025
6 p.m.

Diagnosis: During the course of early Monday morning, tropical wave #15 will be passing over the national territory. Although it is a weak tropical wave, it will be interacting with the...

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Jul

11

Weather Warning

Tropical wave #14 over Costa Rica this Friday

July 11th, 2025
9:50 a.m.

Diagnosis: The high humidity level across the country and the current instability are a result of Tropical Wave 14, which is positioned over the country this morning. Scattered showers have...

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Jul

10

Weather Warning

Tropical Wave 14 to Pass Over Costa Rica This Friday

July 10, 2025
04.30 p.m.

Discussion: A change in the weather pattern toward more humid and unstable atmospheric conditions over Costa Rica and surrounding areas will increase the occurrence of rainfall in various parts...

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Weather warnings history

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Aviso Meteorológico Informativo-IMN-300624-9.50 a.m.

Jun

30

Weather Warning

Hurricane Beryl remains over the Atlantic Ocean

June 30, 2024
9.50 a.m.

Diagnosis: Beryl is now a Category 3 major hurricane. According to the latest NHC report at 15 UTC (9 am local time), this cyclone continues to strengthen in the next few hours as it approaches the Lesser Antilles, see trajectory in the attached figure. It is located at 54.9° West with 10.7° North, moving at 33 km/h to the west, with sustained winds of 195 km/h and registering a minimum pressure of 964 mb.

Forecast: According to current numerical modeling and analysis, Hurricane Beryl will continue to move across the Atlantic this Sunday, and is expected to enter the Caribbean Sea on Monday. The cyclone will then move through the northern Caribbean Sea between Tuesday and Friday, passing through Jamaica and the Gulf of Honduras. Given this forecast path, Beryl will not have direct effects on Costa Rica.

The global and local scale models are not congruent at this time, nor do they show a significant increase in rainfall activity in our country during the cyclone's passage through the northern Caribbean Sea. However, given the advance notice of this scenario, the IMN maintains strict surveillance without interruption and will be updated in a timely manner on the possible indirect effects on the country in case they are determined.

Warning: High uncertainty remains regarding the possibility of impact on the country. However, saturated soils are currently recorded in the South Pacific and North Pacific (special attention to both peninsulas), mountains in the Northern Zone bordering the Central Valley and the Guanacaste mountain range. All regions are vulnerable to landslides and possible flooding.

Due to the above, the IMN recommends: Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr

MSc. Gabriela Chinchilla Ramírez

Meteorologist DMSA-IMN