Weather warnings
Aviso Meteorológico-IMN-240923-11:00a.m.
Sep
24
Weather Warning
Tropical wave #40 will favor atmospheric instability for this Monday
September 24, 2023
11.00 a.m.
Weather Warning
Tropical wave #40 will favor atmospheric instability for this Monday
September 24, 2023
11:00 a.m.
Diagnosis: Costa Rica shows a stable atmospheric pattern and variable cloudiness. For the Central Pacific and South Pacific, cloudy skies are observed, the rest of the country shows partially cloudy conditions. Currently tropical wave #40 is located approximately 78°W (border between Panama and Colombia), this system shows a high humidity content and atmospheric instability.
Forecast: Throughout the afternoon, partly cloudy skies are expected for the Caribbean, North Zone and North Pacific. During the afternoon, possible isolated rains are expected in mountainous sectors with estimated amounts between 10 - 25 mm and possible localized maximums.
For the Central and South Pacific, scattered rains with localized downpours are expected, especially in mountainous sectors and near the border with Panama. These precipitations could continue until early evening. Estimated quantities in 6 hours will range between 10 - 35 mm with maximum possible quantities between 40 - 80 mm.
During the afternoon, the Central Valley presents a probability of isolated short-duration showers to the west of the region. Estimated rainfall in 6-hour periods will be between 10 – 30 mm with possible maximums in mountainous sectors.
Tropical wave #40 will strengthen the humidity content and atmospheric instability for the afternoon of Monday, September 25. The Intertropical Convergence Zone is expected to strengthen on Tuesday due to the instability pattern generated by tropical wave #40.
Warning: Caution is recommended on unstable slopes, sectors with high vulnerability to landslides due to rainfall of varying intensity in the South Pacific due to the high saturation of soils in mountainous sectors.
Therefore, the IMN recommends:
• Caution due to wastewater saturation in places prone to this type of flooding.
• Prevention against thunderstorms and seeking shelter in a safe place in case strong gusts of wind occur or are perceived near storm clouds, due to the possible fall of tree branches, power lines, among others. These gusts can reach between 80 and 100 kilometers per hour in some isolated cases.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr
Paulo Solano
Meteorologist
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
Aug
31
Weather Warning (Update)
Afternoon rain and thunderstorms in several regions of the country
August 31, 2024
5:15 p.m.
Diagnosis: Unstable and humid conditions will continue on Saturday due to an active Intertropical Convergence Zone over our country. Since early afternoon, the presence of scattered showers...
Aug
31
Weather Warning
Afternoon rain and thunderstorms in several regions of the country
August 31, 2024
10:00 am
Diagnosis: On Saturday, unstable and humid conditions will continue due to an active Intertropical Convergence Zone over our country. Since early in the morning, the presence of showers in...
Aug
30
Aviso Meteorológico (Actualización)
Aguaceros en el Pacífico esta tarde (Actualización)
30 de agosto de 2024
5:30 p.m.
Diagnóstico: Condiciones atmosféricas más inestables están presentes este viernes sobre el país, esto debido a la actividad de la Zona de Convergencia Intertropical y a un mayor contenido de...
Aug
30
Aviso Meteorológico
Aguaceros en el Pacífico esta tarde
30 de agosto de 2024
2:00 pm
Diagnóstico: Condiciones atmosféricas más inestables están presentes este viernes sobre el país, esto debido a la actividad de la Zona de Convergencia Intertropical y a un mayor contenido de...
Aug
27
Aviso Meteorológico (Actualización)
Aguaceros con tormenta vespertinos hacia sectores del centro y norte del país
27 de agosto de 2024
6.15 p.m.
Diagnóstico: La presencia de vientos alisios débiles posiciona la Zona de Convergencia sobre el país. Lo anterior sumado a los factores locales y a valores altos de humedad debió al paso de la...
Aug
27
Weather Warning
Downpours with a thunderstorms this afternoon in the center and north side of the country
August 27, 2024
10:00 a.m.
Diagnosis: The presence of weak trade winds positions the Convergence Zone over the country. The above, added to local factors and high humidity values due to the passage of the tropical wave...
Aug
26
Weather Warning (Update)
Tropical wave #27 crossing Costa Rica this Monday
August 26, 2024
05.15 p.m.
Discussion: At this time, tropical wave #27 is in the West of Costa Rica, soon to reach the Pacific Ocean. As it passes over the country, it has generated isolated showers and thunderstorms in...
Aug
26
Weather Warning
Tropical Wave #27 crossing Costa Rica this Monday
August 26, 2024
12 m.
Diagnosis: Tropical wave #27 is crossing the national territory and will reinforce the atmospheric instability generated by local atmospheric conditions such as high temperatures and high humidity;...
Aug
25
Weather Warning
Afternoon rains and tropical wave number 27 moving forward
August 25, 2024
3:00 p.m.
Diagnosis: During this afternoon there have been scattered showers with thunderstorms, especially in the Central Pacific and South Pacific (border sectors with Panama). The maximum accumulated...
Aug
22
Weather Warning
Wet and unstable conditions with high probability of heavy and localized thundershowers
August 22, 2024
09:10 a.m.
Diagnosis: The presence of instability in the upper levels of the regional atmosphere, together with seasonal factors typical of the rainy season in the Pacific, such as the Intertropical...
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