Weather warnings
May
16
Weather Warning (Update)
Heavy rains and electrical storms will continue in the north of the country
May 16, 2024
04.00 p.m.
Discussion: The Intertropical Convergence Zone near the country generates a high humidity content and instability and has favored intense rains and downpours with thunderstorms this afternoon,...
May
16
Weather Warning
Heavy rain and thunderstorm for this Thursday
May 16, 2024
9:00 a.m.
Diagnosis: The Intertropical Convergence Zone and a high humidity content maintain instability in southern Central America. During the early morning and morning, rains of varying intensity...
May
15
Aviso Meteorológico (Actualización)
Actividad lluviosa en el país se extenderán parte de la noche
15 de mayo de 2024
5:30 pm
Diagnóstico: Condiciones inestables continúan en la atmósfera sobre el país. Durante esta tarde se ha presentado actividad lluviosa variable incluyendo aguaceros fuertes en varias zonas del...
May
15
Weather Warning
Downpours this day in the country
May 15, 2024
9.20 am
Diagnosis: The Intertropical Convergence Zone remains close to the country and very active, which is generating humid and unstable conditions since the morning in coastal sectors of the North...
May
14
Weather Warning (Update)
Variable precipitations this thuesday in the country
May 10, 2024
6:00 p.m.
Diagnosis: Unstable atmospheric conditions remain south of Central America due to the activity of the Intertropical Convergence Zone. During this afternoon there have been mostly cloudy skies...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-040120-1030am
Jan
04
Weather Warning
Cold surge # 14 will enter the Caribbean Sea this Saturday
January 04, 2020
10.30 a.m.
Discussion: Cold surge # 14 is currently in the Gulf of Mexico, it will continue moving towards the central sector of the Caribbean Sea during the course of this Saturday. Associated with its passage, atmospheric pressure levels are gradually increasing and at the same time they are causing acceleration in trade winds in southern Central America, reaching maximums in the north of Guanacaste of 67 km/h and in the Central Valley 50 km/h.
Forecast: It is expected that this cold surge is reaching the north of Costa Rica between the night of this Saturday and the early morning of Sunday. Given this, the windy pattern will intensify gradually, maximum gusts between 80-100 km/h in Central Valley and North Pacific are expected, the most intense speeds in the mountain ranges north of the country. Windy conditions will also be perceived in the mountains of the Central and South Pacific.
With respect to rainfall, rainfall of variable intensity is expected during the night of this day and early morning and Sunday morning in the Caribbean and the North Zone, accumulated between 30-60 mm and possible higher amounts in a localized way. In addition, light rains and drizzles are possible in the north and east of the Central Valley and the north of Guanacaste, accumulated less than 5 mm.
It is estimated that these weather conditions associated with the cold thrust would be maintained at least on Monday, reducing their impact on Tuesday.
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
Rebeca Morera R
Meteorologist
DMSA-IMN