Weather warnings
Meteorological Warning
May
21
Meteorological Warning
Showers with a thunderstorm in the Central and South Pacific tonight
May 21, 2024
09:40pm
Diagnosis: Humid and unstable atmospheric conditions, favored by the passage of tropical wave #3, in addition to the activity associated with the Intertropical Convergence Zone, have favored downpours with thunderstorms in the Central and South Pacific regions during late afternoon and so far into the night period. The most significant amounts of the last 6 hours are the following: Marina Pez Vela 232mm, Finca Damas 82mm, Parrita 80mm, Barú 65mm, Ciudad Neily 60mm and Altamira 43mm.
Forecast: For the rest of the night of this Tuesday and during the early hours of this Wednesday, rains of varying intensity accompanied by an electrical storm are expected in coastal regions of the Central and South Pacific with amounts of 20 to 80 mm in 6 hours, with possible higher accumulations. in a localized manner. No significant rainfall is expected for the rest of the country.
Warning: Attention in coastal sectors of the Central and South Pacific, as significant rains have occurred in the last few hours. In addition, mountains of the Northern Caribbean, Northern Zone in the Sarapiquí sector, due to the saturation present in the soils. Be attentive to the development of storm clouds which present their own and significant characteristics such as descending gusts, high precipitation intensity in short periods of time and electrical discharges.
Due to the above, the IMN recommends:
- Caution due to sewage saturation in places prone to this type of flooding.
- Prevention against electrical storms and seeking shelter in a safe place in case strong gusts of wind occur or are perceived near storm clouds, due to the possible fall of tree branches, power lines, among others. These gusts can reach between 80 to 100 km/h in some isolated cases..
- Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and WEBSITE: www.imn.ac.cr
Andrés Gamboa Valverde
Meteorologist
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
May
08
Meteorological Warning Update
(Update) Showers and thunderstorms during the afternoon and early morningmeras horas de la noche
May 8, 2025
6:00 pm
Forecast: Rainy conditions have been observed this afternoon on the Pacific coast, much of the Central Valley, and mountainous areas of the Caribbean and the Northern Zone, due to the activity of...
May
08
Weather Warning
Showers and thunderstorms during the afternoon and early evening
May 08, 2025
10.30 a.m.
Discussion: The Intertropical Convergence Zone remains located over Costa Rica, generating significant moisture and instability. This, along with morning warming and the arrival of sea breezes,...
May
07
Aviso Meteorológico Actualización
(Actualización) Lluvias y aguaceros fuertes en el Valle Central y la vertiente del Pacífico
7 de mayo de 2025
6:20 pm
Diagnóstico: La Zona de Convergencia Intertropical sobre el país, en conjunto con factores locales como el calentamiento diurno y el ingreso de humedad desde el Océano Pacífico, favorecerá...
May
07
Weather Warning
Heavy rain and downpours in the Central Valley and the Pacific slope
May 7, 2025
09:35 a.m.
Diagnosis: The Intertropical Convergence Zone (ITCZ), combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, will favor variable rainfall throughout...
May
06
Weather Warning (Update)
Heavy showers this afternoon and early evening in the country
May 6, 2025
6:20 p.m.
Diagnosis: The proximity of the Intertropical Convergence Zone, combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, has favored heavy downpours...
May
06
Weather Warning
Showers This Tuesday in Several Regions of the Country
May 6, 2025
9:20 a.m.
Diagnosis: The proximity of the Intertropical Convergence Zone, together with local factors such as daytime heating and moisture influx from the Pacific Ocean, will favor variable rainfall over...
May
04
Weather Warning
Rainy activity this afternoon and early evening
May 04, 2025
10.45 a.m.
Discussion: The unstable atmospheric pattern continues today, along with high humidity, associated with the proximity of the Intertropical Convergence Zone. These conditions create an ideal...
May
03
Weather Warning
Heavy rains and a thunderstorm this afternoon and early evening
May 03, 2025
10.25 a.m.
Discussion: The Intertropical Convergence Zone continues over the country, generating a high degree of instability and humidity. This, combined with the warm temperatures recorded this morning,...
May
02
Weather Warning
Intertropical Convergence Zone over the country this Friday
May 02, 2025
10.45 am
Diagnosis: Highly unstable conditions continue across the country this Friday. The ITCZ remains positioned over the country, contributing moisture to the Pacific and Central Valley since early...
May
01
Aviso Meteorológico
Actividad lluviosa en esta tarde y noche
01 de mayo de 2025
10.00 am
Diagnóstico: La Zona de Convergencia Intertropical se encuentra activa sobre el país. Esto favorece un panorama húmedo e inestable, idóneo para la presencia de nubosidad y la ocurrencia de...
