Weather warnings

Feb

04

Weather Warning

Windy conditions persist this week

February 4, 2025
10:40 a.m.

Diagnosis: High levels of atmospheric pressure north of the Caribbean Sea basin favor windy conditions in the national territory. This Tuesday, maximum gusts between 60 km/h and 89 km/h were...

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Feb

03

Aviso Meteorológico

Condiciones ventosas persisten este inicio de semana

3 de febrero de 2025
10.30 a.m.

Diagnosis: High levels of atmospheric pressure north of the Caribbean Sea basin favor windy conditions in the national territory. This Monday, maximum gusts between 60 km/h and 87 km/h were...

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Feb

02

Weather Warning

Strong to very strong wind gusts this Sunday

February 2, 2025
9:30 a.m.

Diagnosis: High levels of atmospheric pressure north of the Caribbean Sea basin favor windy conditions in the national territory. This Sunday, maximum gusts between 60 km/h and 84 km/h have been...

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Feb

01

Meteorological Warning

Rain in the Caribbean and Northern Zone this Saturday. Strong winds in the center and north of the country

February 1, 2025
9:30 am

Diagnosis: The arrival of a pulse of humidity and its drag towards the country by the trade wind has favored very rainy conditions in the Caribbean and the Northern Zone, as well as wide cloud...

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Feb

01

Weather Warning

Rainy conditions in the Caribbean and Northern Zone this morning

February 1, 2025
03:45 a.m.

Diagnosis: Strong trade winds, combined with a pulse of humidity coming from the Caribbean Sea, have favored rains during Friday night and early Saturday morning in the Caribbean and the Northern...

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Weather warnings history

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Aviso Meteorológico-IMN-080125-0925am

Jan

08

Weather Warning

Cold surge #8 maintains influence this Wednesday

January 8, 2025
09.25 a.m.

Discussion: On this Wednesday, the effects of cold surge #8 (EF#8) continue over the country, the cutting line associated with this system has reached Costa Rica. This favors windy conditions in the north and center of the national territory, the maximum gusts have reached 88 km/h in the north of Guanacaste and in the Central Valley ranges between 40 km/h and 70 km/h. In addition, cloudiness and rain are present from early hours in the Caribbean regions and the Northern Zone, generating accumulations between 5-30 mm in the last 3 hours. Due to the drag of the wind, cloudiness and rain occasionally extend to the Central Valley and mountainous areas, amounts less than 10 mm in the last 3 hours.

Forecast: On this day, winds with moderate to strong intensities will predominate. Ranges between 30-60 km/h are estimated for the Central Valley and lower parts of the North Pacific; in the north of Guanacaste and the mountain ranges, speeds between 60-90 km/h are expected.

Throughout Wednesday, rains of varying intensity are expected in regions of the Caribbean and the North Zone, amounts between 30-60 mm in periods of 6 hours, possible higher accumulations in a localized manner. The layer of clouds and rains will occasionally be projected to the Central Valley and mountainous parts, with amounts between 5-20 mm. In the South Pacific and mountains of the Central Pacific, isolated showers are possible during the afternoon period, estimated accumulations between 10-30 mm.

The influence of cold surge #8 will persist until Thursday, diminishing its effects noticeably from Friday onwards.

Warning: High levels of soil saturation (80-95%) remain in the North Zone and Northern Caribbean, a situation that generates high vulnerability to the risk of hydrometeorological incidents.

Due to the above, the IMN recommends:

  • Caution due to saturation of sewers in places prone to this type of flooding, as well as due to the increase in flow in rivers and streams.
  • Prevention due to gusts of wind and their possible affectation of roofs, electrical wiring, signs, trees; as well as in the mountainous parts 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 fires of any kind, as they can get out of control.
  • Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr

Rebeca Morera R.
Meteorologist
DMSA/IMN