Weather warnings
Weather Warning-IMN-150824
Aug
15
Weather Warning
Showers with thunderstorms this afternoon over Costa Rica
August 15, 2024
4:30 p.m.
Diagnosis: The Intertropical Convergence Zone over the country and local factors have favored the presence of scattered rains and showers accompanied by thunderstorms. The most important amounts have occurred in a localized manner in: the mountains of the Northern Zone with 95 mm (Juan Castro Blanco National Park), 40 mm in Sarapiquí, Ciudad Quesada and Upala. For the Central Valley, between the towns of Santa Bárbara and the Juan Santamaría Airport, between 65 mm and 50 mm are recorded, with the rest of the region with records below 25 mm. As for the Pacific slope, it maintains accumulations between 5 mm and 30 mm.
Forecast: During the rest of the afternoon, scattered showers will continue in the center and west of the Northern Zone and parts of the North Pacific with maximum estimated accumulations between 20 mm and 70 mm. For the Central Valley, variable rainfall is expected to decrease in the next three hours with accumulations between 10 - 50 mm.
In the early hours of the night, localized showers are expected in the lower parts of the Central and South Pacific. Accumulations would be between 15 - 50 mm.
Warning: Soil saturation has only been persistent in the upper parts of the Northern Zone, so caution is called for, especially where these rains are currently occurring.
Due to the above, the IMN recommends:
• Caution due to sewer saturation in places prone to this type of flooding.
• Prevention in the event of an electrical storm and seeking shelter in a safe place in the event of strong gusts of wind occurring or perceived near the 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 media, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page www.imn.ac.cr
Jose Valverde Mora
Meteorologist
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
Apr
21
Weather Warning
Trade winds and increased moisture content to the south of the region
April 21, 2025
09:40 a.m.
Diagnosis: The increase in atmospheric pressure in the northern Caribbean Sea, maintains accelerated trade winds in the center of the basin, this coupled with high humidity values in the region,...
Apr
18
Aviso Meteorológico
Condiciones ventosas persisten este viernes
18 de abril de 2025
9:30 am
Diagnóstico: Un fuerte gradiente de presión atmosférica sobre el Mar Caribe mantiene el viento acelerado en la región centroamericana. En Costa Rica se han registrado ráfagas máximas de 96.7 km/h...
Apr
17
Weather Warning
Moderate to strong wind gusts this Thrusday
April 17, 2025
09:30 a.m.
Diagnosis: High atmospheric pressure levels north of the Caribbean Sea basin are favoring accelerated trade winds over the country. So far, the lower reaches of the Central Valley and the North...
Apr
16
Aviso Meteorológico
Ráfagas de viento de moderadas a muy fuertes este miércoles
16 de abril de 2025
10:30 am
Diagnóstico: Un nuevo incremento en la presión atmosférica sobre la cuenca del Mar Caribe está favoreciendo un fuerte aceleramiento del viento sobre el país. Los sectores bajos del Valle Central...
Apr
14
Aviso Meteorológico
Lluvias en el Caribe y Zona Norte este lunes
14 de abril de 2025
9:00 am
Diagnóstico: El empuje frío #19 comienza a alejarse de la región, sin embargo, aún se mantienen condiciones atmosféricas inestables en el Caribe y Zona Norte. Durante la madrugada y lo que va de...
Apr
13
Weather Warning
Influence of Cold Surge #19 this Sunday and beginning of the week
April 13, 2025
09:30 a.m.
Diagnosis: The cold push #19 located in the center of the Caribbean Sea, maintains high atmospheric pressure values from the center to the north of the region. This favors the increase of trade...
Apr
12
Weather Warning
Influence of Cold Surge #19 this weekend and beginning of the week
April 12, 2025
10:05 a.m.
Diagnosis: The increase in atmospheric pressure from the southern United States toward the Gulf of America is a consequence of the passage of cold surge #19 toward the central Caribbean Sea...
Apr
10
Aviso Meteorológico
Influencia de Empuje frío #19 sobre el país este fin de semana
10 de abril de 2025
10.00 am
Diagnóstico: El empuje frío #19 localizado sobre el sector central del Centroamérica y el Mar Caribe está influenciando al país este jueves con viento moderados y lluvias variables en el Caribe y...
Apr
04
Weather Warning
Increased trade winds and moisture content in the region
April 04, 2025
10:10 a.m.
Forecast: Rising atmospheric pressure in the central and eastern Caribbean Sea is accompanied by an increase in moisture content from today through Sunday, the latter shifting toward southern...
Mar
25
Weather Warning
Variable rains in the Carribbean slope of the Country
March 25, 2025
5:40 p.m.
Diagnosis: The increase in moisture content throughout the beginning of this week in southern Central America continues, with steady cloud cover continuing into Tuesday in parts of the Caribbean...
