Weather warnings
Oct
31
Weather Warning (Update)
Rains of varying intensity for this afternoon and evening
October 31, 2024
04.40 p.m.
Discussion: Unstable atmospheric conditions are present in our country and surrounding areas, caused by the active Intertropical Convergence Zone (ITCZ) close to the national territory and the...
Oct
31
Weather Warning
Rains of variable intensity for this afternoon and evening
October 31, 2024
10:05 a.m.
Diagnosis: Today, several factors are generating unstable conditions in the national territory and, especially, on both coasts. Among these factors are: an active Intertropical Convergence Zone...
Oct
30
Aviso Meteorológico (Actualización)
Lluvias en las primeras horas de la noche en el país
30 de octubre de 2024
5:15 p.m.
Diagnóstico: La Zona de Convergencia Intertropical permanece activa al sur del país este miércoles. Durante esta tarde, se han presentado lluvias en todo el país, registrándose los mayores...
Oct
30
Aviso Meteorológico
Heavy rain activity in the Central and South Pacific this afternoon and evening
October 30, 2024
10.15 am
Diagnosis: The Intertropical Convergence Zone remains active in the south of the country this Wednesday. Since this morning we have had moisture entering the region which, together with local...
Oct
29
Aviso Meteorológico
Aguaceros muy fuertes esta noche en el Caribe Norte y Zona Norte
29 de octubre de 2024
6:50 pm
Diagnóstico: Como se ha venido informando, la Zona de Convergencia Intertropical se mantiene muy activa sobre el territorio nacional. Un alto contenido de humedad en ambos litorales, aunado a...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-080120-1030am
Jan
08
Weather Warning
Windy conditions in Costa Rica
January 8th, 2020
10.30 a.m.
Diagnosis: The passage of cold surge # 15 through the north of the Caribbean Sea, causes the trade winds to perceive very large parts of the country. At this time maximum windgusts between 94-102 km/h have been recorded in Guanacaste and in the Central Valley between 70-81 km/h. In addition, weak and scattered rains have been recorded in the plains of the North Zone and the North Caribbean, with amounts accumulated between 5-10mm since midnight.
Forecast: Because of the cold surge, very strong windgusts are forecast in Central Valley and Guanacaste Plains, with values ??between 60-80 km/h; while, in the northern sector and the North Pacific mountain range, intense wind are expected between 90-100 km/h.
On the other hand, there will be occasional rains throughout the afternoon and evening in the Caribbean regions and the North Zone; In addition to light rains and drizzles in mountainous areas of the Central Valley and northern Guanacaste. On the contrary, in the lower parts of the Metropolitan Area and on the Pacific Slope, the rest of the day will remain under a stable and dry pattern.
The cold surge is projected to move rapidly to the Atlantic Ocean; Therefore, the greatest impact will be during this Wednesday and Thursday morning. However, weather conditions will continue extremely windy over the country at least until next Sunday due to the strengthening of a high-pressure system in the Atlantic
Due to the above, the IMN recommends:
• Extreme precautions due to strong winds and their possible impact on roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country (national parks, volcanoes).
• Caution in areas vulnerable to flooding due to sewer saturation, increased flow in rivers and streams, and in areas prone to landslides.
• Caution for boats by choppy sea and very strong waves in the North Pacific, Gulf of Nicoya, Central Pacific and the Caribbean Sea, as well as air navigation due to turbulence over the mountainous sectors.
• Avoid burning of all kinds as they can get out of control.
Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute and the Website: www.imn.ac.cr
Juan Diego Naranjo Díaz
Meteorologist
DMSA-IMN