Weather warnings

Jun

27

Weather Warning

Instability of tropical wave #13 and the Central American Gyre for this Thursday

June 27, 2024
8:00 a.m.

Diagnosis: Tropical wave #13 over the waters of the North Pacific of our country leaves instability in its wake, which is added to the presence of southwesterly flows throughout the Pacific...

See More


Jun

26

Aviso Meteorológico (Actualización)

Onda tropical #13 acercándose al país esta noche y posible Giro Centroamericano (actualización)

26 de junio de 2024
5:00 pm

Diagnóstico: Condiciones inestables en la atmósfera han favorecido lluvias variables sobre le territorio nacional, las más fuertes en la Zona Norte y Guanacaste. Los montos máximos registrados...

See More


Jun

26

Weather Warning

Tropical wave #13 approaching the country tonight and possible Central American Gyre

June 26, 2024
10.15 a.m.

Diagnosis: The prevailing conditions in southern Central America are very unstable, that is, suitable for the occurrence of heavy rain events in the country tonight and tomorrow Thursday. On the...

See More


Jun

26

Meteorological Warning

Showers in mountainous areas of the Caribbean tonight

June 26, 2024
12:35 a.m.

Diagnosis: Unstable atmospheric conditions, generated after the transit of tropical wave #12 over the country this Tuesday, have favored downpours with isolated electrical storms in mountainous...

See More


Jun

25

Aviso Meteorológico (Actualización)

Tropical wave #12

June 25, 2024
4.30 p.m.

Diagnosis: The axis of tropical wave #12 (OT 12) is currently at 84°W, over the country. This system will continue to move west. In the last 5 hours, showers with thunderstorms have been recorded...

See More


Weather warnings history

In this section you will find the weather warnings history.

« Back

Aviso Meteorológico-IMN-150120-0730am

Jan

15

Aviso Meteorológico

Strong winds persist on this day

January 15, 2020
07.30 a.m.

Discussion: Strong windy conditions prevail on this day over the country, a situation generated by a high-pressure system in the Atlantic Ocean which maintains high atmospheric pressure levels over the Central American region. The most intense gusts are perceived in the north of Guanacaste with maximums of 108 km/h, meanwhile in the lower parts of the North Pacific and Central Valley they are around 50-85 km/h. In addition, weak rains appear in the North Zone and the Caribbean with amounts less than 15 mm.

Forecast: The strong winds will continue during this day, maximum speeds are estimated between 50-110 km/h in the mountain ranges of the country, while in the lower parts of the Central Valley and the North Pacific maximum between 40-85 km/h. A slight decrease in the intensity and frequency of the gusts is expected between Thursday and Friday.

As for rainfall, they will manifest themselves intermittently during the course of Wednesday in the Caribbean and North Zone regions with accumulated between 10-50 mm. Occasional light showers and light rains are possible in the mountain ranges and its surroundings with amounts less than 5 mm.

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 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