Weather warnings
Weather Warning-IMN-170425
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 Pacific have recorded gusts between 30 km/h and 65 km/h, while northern Guanacaste and the mountain ranges have been between 70 and 90 km/h. Occasional clouds in the northern Caribbean and the Northern Zone have produced short-lived rain with accumulated rainfall below 18 mm.
Forecast: Moderate to strong winds will continue throughout the day in the center and north of the country. Gusts are expected to remain at similar levels to those recorded this morning: between 40 and 65 km/h for the Central Valley and between 70 and 95 km/h for northern Guanacaste and the mountain ranges. Scattered clouds are expected to remain in the north of the country, with possible occasional light to moderate rain showers. In the mountains east of Parrita and around the Golfo Dulce, there is a possibility of short-lived afternoon showers.
Warning: Special attention is recommended in the mountains and surrounding lowlands due to the presence of strong to very strong gusts.
Due to the above, the IMN recommends:
• Avoid wind gusts and their possible damage to roofs, electrical wiring, signs, and trees, as well as in the mountainous areas of the country and Guanacaste (national parks, volcanoes).
• Caution in air navigation due to increased turbulence, as well as in maritime navigation due to increased rough seas, especially in the North Pacific, Gulf of Nicoya, and northern Central Pacific.
• Avoid burning of all types, as they can get out of control.
• Stay informed through social media: Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR, and the websitewww.imn.ac.cr
Jose Valverde Mora
Meteorologist
DMSA/IMN
Weather warnings history
In this section you will find the weather warnings history.
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...
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...
