Weather warnings

May

23

Weather Warning (Update)

Rain and thunderstorms expected this Friday

May 23, 2025
5:00 p.m.

Diagnosis: An increase in ambient humidity, coupled with the proximity of the Convergence Zone and local factors, have favored the presence of heavy downpours with thunderstorms in several parts...

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May

23

Weather Warning

Rain and thunderstorms expected this Friday

May 23, 2025
10.00 a.m.

Discussion: An increase in ambient humidity, along with the proximity of the Convergence Zone and local factors such as breeze entry and morning warming, will facilitate cloudiness and...

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May

18

Weather Warning

Scattered showers and thunderstorms this Sunday in recurring sectors

May 18, 2025
09:40 a.m.

Diagnosis: Local factors such as humid Pacific breezes and warm temperatures will favor scattered showers with thunderstorms this Sunday afternoon in areas where significant rainfall has occurred...

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May

17

Weather Warning

Scattered heavy downpours with thunderstorms this Saturday

May 17, 2025
10:20 a.m.

Forecast: The passage of Tropical Wave 2, along with local factors such as humid breezes from both sides and warm temperatures, will favor scattered showers and thunderstorms this Saturday...

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May

16

Aviso Meteorológico (Actualización)

Lluvias durante el final de la tarde del viernes

16 de mayo de 2025
4.30 p.m.

Diagnóstico: Persiste la inestabilidad atmosférica sobre el país debido a la cercanía de sistemas de baja presión asociados a la Zona de Convergencia Intertropical y factores locales típicos de...

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Weather warnings history

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Aviso Meteorológico-IMN-180820-1030am

Aug

18

Weather Warning

Heavy downpours and thunderstorm this afternoon

August 18, 2020
10.30 a.m.

Discussion: The Intertropical Convergence Zone is active and close to the country, which together with local factors such as warm morning temperatures and the entry of sea breezes will be generating cloudy developments and moderate intensity rainy activity this afternoon and early evening. and thunderstorm.

Forecast: During the afternoon rains of variable intensity and downpours with electrical storms are expected in the regions of the Central and South Pacific, Nicoya Peninsula, with amounts between 25-50 mm, possible accumulated higher in a localized way. In the North Zone, the Central Valley and the Caribbean mountains, isolated rains and showers with thunderstorms are expected, amounts estimated between 10-45 mm. The rains will continue until early at night in the Pacific and to a lesser extent in the Central Valley and North Zone.

Warning: High levels of soil saturation prevail in the North Zone, South Pacific, Nicoya Peninsula; therefore, particular attention is recommended.

Due to the above, the IMN recommends:

  • Caution in areas vulnerable to flooding due to sewer saturation.
  • Take shelter in a safe place in case of hearing 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

Rebeca Morera R
Meteorologist
DMSA-IMN