Weather warnings

May

04

Weather Warning

Rainy activity this afternoon and early evening

May 04, 2025
10.45 a.m.

Discussion: The unstable atmospheric pattern continues today, along with high humidity, associated with the proximity of the Intertropical Convergence Zone. These conditions create an ideal...

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May

03

Weather Warning

Heavy rains and a thunderstorm this afternoon and early evening

May 03, 2025
10.25 a.m.

Discussion: The Intertropical Convergence Zone continues over the country, generating a high degree of instability and humidity. This, combined with the warm temperatures recorded this morning,...

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May

02

Weather Warning

Intertropical Convergence Zone over the country this Friday

May 02, 2025
10.45 am

Diagnosis: Highly unstable conditions continue across the country this Friday. The ITCZ ​​remains positioned over the country, contributing moisture to the Pacific and Central Valley since early...

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May

01

Aviso Meteorológico

Actividad lluviosa en esta tarde y noche

01 de mayo de 2025
10.00 am

Diagnóstico: La Zona de Convergencia Intertropical se encuentra activa sobre el país. Esto favorece un panorama húmedo e inestable, idóneo para la presencia de nubosidad y la ocurrencia de...

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Apr

30

Weather Warning

Rainy activity this afternoon and into the evening

April 30, 2025
10.20 a.m.

Discussion: The Intertropical Convergence Zone is beginning to show increased activity and is likely to remain close to Costa Rica. This favors a humid and unstable outlook, ideal for cloudiness...

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Weather warnings history

In this section you will find the weather warnings history.

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Weather report

Nov

03

Weather Report # 12

Meteorological Report N ° 12-IMN-031120-Hurricane Eta downgrades to category 2 after entering Nicaragua and continues to indirectly influence Costa Rica

November 03, 2020
10:00 pm

 

Diagnosis: Hurricane Eta has lost strength after entering Nicaraguan territory maintaining sustained winds of 165 km / h (category 2), its center is located 70 km west-southwest of Puerto Cabezas, Nicaragua. Regarding our country, this system is located approximately 441 km north of the city of Limón. Eta travels at 9 km / h in a westerly direction, entering Nicaraguan territory.
 
 In Costa Rica, the indirect influence of this system has caused rains of variable intensity during this afternoon and part of the night, the most intense on the Pacific slope, especially in the North Pacific (Guanacaste), where accumulations of up to 52mm are recorded. in the last 3 hours. With cut-off at 10:00 pm, the accumulated maximums of the last 6 hours (since the previous report) by region are:
 

Climatic region

Accumulated range (6 hours)

Highs recorded

North Pacific

30-163 mm

Hojancha 163 mm (Máximo localizado)

Central Pacific

15-25 mm

Herradura 25mm

South Pacific

30-68mm

Ciudad Neily 68 mm, Río Claro 50 mm

Central Valley

5-25mm

Fraijanes 25 mm, Santa Bárbara 17 mm

North Zone

1-19mm

Upala 19mm

Caribbean

Less than 1mm

 
 
Forecast: According to the National Hurricane Center (NHC), Hurricane Eta will continue its movement over Nicaraguan territory, progressively losing intensity to later enter Honduran soil approximately tomorrow, Wednesday, around noon, with tropical storm intensity. Throughout this period, the indirect influence on Costa Rica will persist.
 
In Guanacaste there are important cloud cores, which would be generating rains of variable intensity, with localized downpours, especially in places like Liberia, La Cruz, the Nicoya Peninsula and coastal sectors of the North Pacific. Amounts between 20-100 mm are estimated.
 
In the Central and South Pacific rains are expected between weak and moderate with occasional showers, especially in the coastal zone and border sectors with Panama. With accumulated estimates between 20-40mm.
 
In the Central Valley, the North Zone and the Caribbean, there could be intermittent rains; in addition to fog banks.
 
Warning: Special attention due to the saturation of soils in the regions of the Pacific Slope, particularly in the cantons of Nandayure, Nicoya, Liberia, Carrillo and Hojancha in the North Pacific, in the South Pacific to Buenos Aires, Brus preserve and Osa and in the Central Pacific Parrita and Aguirre. Also pay special attention to the Los Santos area due to the risk of landslides.
 
Due to the above, the IMN recommends:
 
• Caution in areas vulnerable to flooding due to sewerage saturation and increased flow in rivers and streams.
• Take shelter in a safe place in case you hear an electrical storm or perceive strong gusts of wind near the storm clouds, as well as caution against possible falling tree branches, power lines, among others.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr
 
Next report: Wednesday, November 4, 04:00 a.m.
 
Andres Gamboa
Forecast
DMSA-IMN

 


By Meteorologo Turno del Coco 11/3/20 11/4/20 11/3/20