Weather warnings

May

14

Weather Warning (Update)

Instability after the passage of Tropical Wave #1

May 14, 2025

04.35 p.m.

Discussion: Atmospheric instability persists over Costa Rica following the passage of Tropical Wave #1 yesterday. This, along with activity associated with the Intertropical Convergence Zone...

May

14

Weather Warning

Instability after the passage of Tropical Wave #1

May 14, 2025

10:00 a.m.

Diagnosis: Tropical Wave #1 is located far from the national territory. However, after its passage, atmospheric instability persists in the region. This condition, together with increased...

May

13

Weather Warning (UPDATE)

Tropical Wave #1 crossing Costa Rica this Tuesday

13 de mayo de 2025

05.30 p.m.

Discussion: Tropical Wave 1 entered the country early this morning and, in conjunction with the Intertropical Convergence Zone, has generated very unstable atmospheric conditions across the...

May

13

Aviso Meteorológico

Onda Tropical #1 atravesando el país este martes desde la madrugada

13 de mayo de 2025

9.45 am

Diagnóstico: La onda tropical # 1 ingresó al país esta madrugada generando precipitaciones con tormenta eléctrica recurrente en el Caribe, Zona Norte y Valle Central, los acumulados más elevados...

May

12

Weather Warning

Variable rains during the afternoon on Monday and the passage of the tropical wave this Tuesday

May 12, 2025

03:40 p.m.

Diagnosis: The increase in moisture content from both sides, combined with local factors such as Pacific breezes and high daytime temperatures, have favored the presence of heavy downpours with...

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Weather Warning-IMN-050624-04:40 p.m.

Jun

05

Weather Warning (Update)

Unstable conditions prevail in the country this Wednesday

June 5, 2024

4:40 p.m.

Diagnosis: The position and activation of the Intertropical Convergence Zone, together with the contribution of humidity driven by Tropical Wave #6, which is located in western Panama, have favored heavy showers in the Caribbean and east of the Central Valley, with variable rainfall on the Pacific side. The maximum accumulated amounts so far are in: Coto Brus with 60 mm, La Suiza de Turrialba and Cartago center with 50 mm, Laurel with 45 mm, Santa Ana with 50 mm, high parts of the Northern Zone with 30 mm, Nicoya-Nandayure with 35 mm and Barrio Aranjuez in San José with 25 mm.

Forecast: For the rest of the afternoon, showers with storms will continue, these in sectors of the center and towards the east of the Caribbean and parts of the Northern Zone. The estimated amounts will be between 20 - 60 mm with punctual maximums of 80 mm. These precipitations will decrease during the first two hours of the night. During the night period we expect moderate rains, with some localized showers, to occur on the Pacific coast and the Central Valley. Amounts between 10 to 40 with punctual maximums of 80 mm. Tropical wave #6 and its interaction with the Intertropical Convergence Zone will be reinforcing the precipitations in the country during the afternoon of Thursday, with the possibility of localized showers on the coasts of the South Pacific and North Pacific, from the early hours of Thursday.

Warning: High levels of soil saturation persist in the plains, mountainous areas and their surroundings in the Caribbean and Northern Zone (Turrialba, Cartago, Sarapiquí, Pococí, mountains adjacent to Guatuso and Upala, among others), South Pacific in general; therefore, these are regions vulnerable to landslides and possible floods. Likewise, in the east and north of the Central Valley, Nicoya Peninsula and Tempisque sector.

We recommend that the population stay informed through upcoming communications and analysis.

Due to the above, the IMN recommends:

• Caution due to sewer saturation in places prone to this type of flooding.

• Prevention against electrical storms and seek shelter in a safe place in case of strong gusts of wind near storm clouds, due to the possible fall of tree branches, power lines, among others. These gusts can reach 80 km/h in some isolated cases.

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

Jose Pablo Valverde Mora

Meteorologist

DMSA-IMN

By Meteórologo de Turno 6/5/24 6/5/24 6/5/24

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