Weather warnings
May
09
Weather Warning
Heavy rain on the Pacific slope
May 09, 2024
9:30 a.m.
Diagnosis: The atmospheric instability in our region is associated with the position of the Intertropical Convergence Zone, especially over Costa Rica. This favors the occurrence of heavy...
May
08
Weather Warning
Rains of varying intensity for this Wednesday in the national territory
May 08, 2024
09:10 a.m.
Diagnosis: The strong atmospheric instability in the south of Central America is caused by the location of the Intertropical Convergence Zone, specifically over Costa Rica and Panama. During the...
May
04
Weather Warning
Variable precipitations in the Central and South Pacific regions
May 04, 2024
10:20 a.m.
Diagnosis: The presence of weak trade winds, high temperatures and high humidity contents towards the south of Central America will be accompanied by instability due to the proximity of the...
May
03
Aviso Meteorológico
Lluvias de variable intensidad en el Pacífico
03 de mayo del 2024
10:30 p.m.
Diagnóstico: Condiciones atmosféricas húmedas e inestables y la cercanía de la Zona de Convergencia Intertropical en el país, han favorecido durante esta noche la formación de núcleos convectivos...
Apr
29
Weather Warning
Scattered showers with a thunderstorm for this Monday
April 29, 2024
10:30 am
Diagnosis: The proximity of the Intertropical Convergence Zone maintains instability and humid conditions favorable for precipitation in sectors of the Pacific slope and parts of the Central...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-070120-0245pm
Jan
07
Aviso Meteorológico
Windy conditions are intensified by the arrival of cold suge
January 07, 2020
02.45 p.m.
Discussion: Very high atmospheric pressure levels dominate the region, which has led to an increase in the pattern of winds during this day, with gusts reaching 80 km/h in the North Pacific and 60 km/h in the Central Valley In addition to this, the cold surge # 15 transits over the Gulf of Mexico, its incursion into northern Central America is expected in the next few hours, further accentuating the windy conditions on the country.
Forecast: It is estimated that during the night and during the early hours of this Wednesday the cold push is affecting the national territory. The main feature will be the projection of intense gusts of wind; Maximum speeds between 80-110 km/h are expected in Central Valley and North Pacific. 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 Wednesday 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.
The cold surge is projected to move rapidly to the Atlantic Ocean; therefore, the greatest impact will be during this Wednesday and part of Thursday; however, the 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
Rebeca Morera R
Meteorologist
DMSA-IMN