Weather warnings

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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Jul

08

Informative Weather Notice

Sahara dust over the country

July 08th, 2025
9:50 a.m.

Diagnosis: Increases in atmospheric pressure in the Caribbean Sea accelerate the trade winds over the basin, as well as over central and northern Spain. Furthermore, a dry, stable air mass...

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Jul

07

Weather Warning

Heavy downpours during the afternoon in the Pacific and northern regions

July 07th, 2025
10.40 a.m.

Discussion: Tropical Wave 13 is located in western Costa Rica, close to entering the Pacific Ocean. Although it is a weak wave, its interaction with the Intertropical Convergence Zone increases...

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Jul

06

Aviso Meteorológico

Efectos de la onda tropical #13 en el país este domingo y lunes

06 de julio de 2025
11.25 am

Diagnóstico: La onda tropical #13 se localiza este domingo al oeste de Panamá, generando inestabilidad en el mar Caribe frente a la costa costarricense, lo que favorece lluvias en el Caribe Sur...

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Jul

01

Weather Warning

Rainy conditions in the Caribbean and Northern Zone this Tuesday and Tropical Wave #12

Jul 01th, 2025
10 am

Diagnosis The strengthening of the trade winds over the central and northern regions of the country has produced wind gusts of up to 50 km/h in areas such as Alajuela this morning. This...

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Aviso Meteorológico-IMN-260521-1115am

May

26

Weather Warning

Rainy activity during this Wednesday

May 26, 2021
11.15 a.m.

Discussion: The proximity of the Intertropical Convergence Zone, together with the moderate trade wind flow in the north of the country, favors the constant entry of humidity, promoting cloudiness and rain throughout the day in the different regions of the country. From early hours, rains appear in the North Zone and North Caribbean, the accumulated are less than 15 mm; in the rest of the country, cloudiness between partial and total predominates with drizzles in mountainous sectors.

Forecast: For the remainder of this morning, rains will remain between weak and moderate with an isolated electrical storm in the North Zone and North Caribbean and will extend towards the south of the Caribbean, it is estimated that the rainy activity will remain intermittent in much of this day -even in the night period-, amounts of 20-60 mm, possible accumulated higher in a localized way.

For the afternoon and early evening, isolated showers with a thunderstorm are expected in the Central Pacific, the South Pacific and in a scattered manner in the Nicoya Peninsula, with accumulated between 30-60 mm. On the other hand, in the Central Valley, it will predominate mostly cloudy with rains and an isolated electrical storm mainly in the center and west of the region.

Warning: Special attention in the Caribbean and North Zone since due to the constant rains they present saturation of soils. On the Pacific slope due to strong and localized downpours.

Due to the above, the IMN recommends:

  • Caution in areas vulnerable to flooding due to sewerage saturation and / or stream overflow.
  • Be cautious against electrical storms and seek shelter in a safe place in case of strong gusts of wind or strong gusts of wind near the storm clouds, due to the possible fall of tree branches, power lines, among others.
  • Prevention in areas prone to landslides.
  • Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr

Rebeca Morera R
Meteorologist
DMSA-IMN

 


By Juan Diego Naranjo 5/26/21 5/26/21 5/26/21