Weather warnings
Aviso Meteorológico-IMN-280923-5:40p.m.
Sep
28
Weather Warning -Update-
Rainfall will continue in recurring sectors
September 28, 2023
5:40 pm
Meteorological Warning
Rainfall will continue in recurring sectors
Update
September 28, 2023
5:40 p.m.
Diagnosis: Currently there is an electrical storm to the west of the Central Valley and sectors of the Northern Zone. Sectors such as San Ramón and San Carlos report amounts between 60 - 70 mm since 7 am. The storm remains stable with a movement west-southwest towards sectors of Bagaces and Nicoya. In addition, electrical activity is reported in border sectors of the North Pacific (near the border) and in the South Pacific, in sectors such as the Osa Peninsula, Punta Uvita and San Vito.
Forecast: The presence of fog banks is expected in the Central Valley that could establish between 6 – 8 pm. Also, drizzle after 8 pm in the Central Valley.
On the other hand, it is estimated that these downpours will continue to the west with accumulated between 5 – 20 mm during the night hours due to the electrical storm in areas near Heredia, Alajuela, San Ramón in the Central Valley, in addition, San Carlos and surroundings in the North Zone.
In the North Pacific and South Pacific, amounts between 5 - 20 mm are expected in the next few hours. This in sectors near Puntarenas, Bagaces and Nicoya in the North Pacific and the Osa Peninsula and San Vito in the South Pacific.
More stable conditions remain in the Caribbean.
Warning: Special attention in mountainous sectors of the western and southern Central Valley, as well as in Sarapiquí, around San Carlos in the Northern Zone, and also in the border area with Panama. This is due to the vulnerability of saturated soils, which increases the risk of incidents.
Due to the above, the IMN recommends:
• Caution due to sewage saturation in places prone to this type of flooding.
• Prevention against electrical storms 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 to 100km/h in some isolated cases.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr
Meteorologist
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
May
25
Aviso Meteorológico (Actualización)
Zona de convergencia intertropical activa sobre Costa Rica -ACTUALIZACIÓN--
25 de mayo de 2025
6:00 p.m.
Diagnóstico: La Zona de Convergencia Intertropical se encuentra activa y sobre Costa Rica este domingo, generando con esto inestabilidad atmosférica sobre en el país. Desde la mañana, se han...
May
25
Aviso Meteorológico
Zona de convergencia intertropical activa sobre Costa Rica
25 de mayo de 2025
12 m.
Diagnóstico: La Zona de Convergencia Intertropical se encuentra activa y sobre Costa Rica este domingo, generando con esto inestabilidad atmosférica sobre en el país y por esto, predomina el...
May
24
Aviso Meteorológico
Precipitaciones este sábado en ambas costas del territorio nacional
24 de mayo de 2025
10:30 am
Diagnóstico: El ambiente húmedo en el que se encuentra el país junto a la instabilidad que genera la cercanía de la Zona de Convergencia sobre Costa Rica, facilita presenten lluvias desde la...
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...
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...
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...
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...
