Weather warnings
Informative Weather Warning-IMN-130823-11:50 a.m.
Nov
13
Informative Meteorological Warning
Formation of low pressure system in the middle of the week with cyclonic potential
November 13, 2023
11:50 a.m.
Diagnosis: There is a possibility of the formation of a low pressure system in the Southwest of the Caribbean Sea in the middle of the week, near Southwest Central America. According to the National Hurricane Center (NHC), as this happens, a gradual development of this system is possible towards the second part of the week, with the possibility of forming a tropical cyclone that at the same time will be moving in the direction to the Northeast, moving away from the region.
The possibility of developing a tropical cyclone is 0% in 48 hours and 70% within seven days (high possibility).
Forecast: Current analyzes and numerical models show very high uncertainty. However, given the possible formation and proximity of low pressure, it may cause interaction with the Intertropical Convergence Zone and induce a flow of humidity from the Pacific Ocean towards the national territory in the middle of the week, generating rains of varying intensity, particularly towards regions of the Pacific and can extend to other sectors of the country to a lesser extent. The above will depend on the evolution of this possible system. The IMN maintains strict uninterrupted surveillance and will immediately update information on the possible formation of this phenomenon and its eventual effects in Costa Rica.
Due to the above, the IMN recommends:
- Be attentive to the issuance of informative weather warnings that are published in: Twitter: @IMNCR Facebook: National Meteorological Institute WEBSITE: www.imn.ac.cr
Warning: Special attention in sectors with high soil saturation such as the South Pacific and North Zone.
Next informative report: tomorrow 12:00 m.
Jose Pablo Valverde Mora
Meteorologist
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
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...
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...
May
16
Aviso Meteorológico
Actividad lluviosa variable esta tarde de viernes
16 de mayo de 2025
11:00 am
Diagnóstico: Persiste la inestabilidad atmosférica sobre el país debido a la cercanía de sistemas de baja presión asociados a la Zona de Convergencia Intertropical. A esto se suman factores...
May
15
Aviso Meteorológico (Actualización)
Aviso Meteorológico-IMN-150525-Condiciones lluviosas en esta tarde y noche (actualización)
15 de mayo de 2025
6:00 pm
Diagnóstico: La Zona de Convergencia Intertropical se encuentra próxima a Costa Rica y, junto con condiciones de inestabilidad en niveles altos de la atmósfera y factores locales, ha generado un...
May
15
Weather Warning
Rainy conditions this afternoon and evening
May 15, 2025
10.45 a.m.
Discussion: The Intertropical Convergence Zone near Costa Rica and instability in the upper atmosphere, along with morning warming, are contributing factors to the presence of cloudiness and...
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...
