Weather warnings
Aviso Meteorológico-IMN-201123-5:15p.m.
Nov
20
Weather Warning
Afternoon rains continue for the night period
November 20, 2023
5.15 p.m.
Diagnosis: Local factors and instability associated with the Intertropical Convergence Zone generate rains during the evening period. Currently there are rains in several parts of the country. The accumulations reported since 7 am in the Central Valley range between 15 – 25 mm with localized maximums of 50 mm in Santa Lucía and Santa Barbara de Heredia. In the North Pacific there are amounts between 5 – 20 mm with a maximum located of 65 mm in Carrillo de Guanacaste. The Central Pacific and South Pacific accumulated between 10 – 30 mm with maximums of 50 mm in Rosario de Desamparados. In the rest of the country there are rains between 5 – 20 mm.
Forecast: Rainy activity is expected to persist, however, with weak to moderate intensity during the rest of the afternoon and evening hours. In the North Pacific, Central Pacific, South Pacific and Central Valley, amounts between 10 – 30 mm with maximums of 50 mm are expected to be generated in a period of 6 to 12 hours. In the Caribbean and Northern Zone, amounts are expected to be below 30 mm.
Warning: Soil saturation persists in the South Pacific, Central Pacific, Northern Zone and mountainous Northern Caribbean, due to the recurrent rainfall these days.
Due to the above, the IMN recommends:
• Caution due to sewage saturation and possible flash floods, as well as the main routes of the country in the event of heavy rain events.
• 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.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr
Paulo J. Solano S.
Meteorologist
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
Jan
09
Weather Warning
Rainy conditions will continue overnight in the North Zone
January 9, 2025
06.25 p.m.
Discussion: Accelerated winds prevail in the country, favoring the constant drag of humidity from the Caribbean Sea towards the national territory. The strongest gusts have been recorded in...
Jan
09
Weather Warning
Cold surge #8 leaves the Caribbean Sea, but rains will continue in the Northern Zone
January 9, 2025
10:00 a.m.
Diagnosis: This Thursday the cold push #8 is in the Atlantic moving away from the Caribbean Sea so it no longer has influence in Costa Rica. However, a high pressure system in the United States...
Jan
08
Weather Warning (Update)
Cold surge #8 maintains influence this Wednesday
January 8, 2025
5:10 p.m.
Diagnosis: This Wednesday, the effects of cold pressure #8 (EF#8) continue over the country, the cutting line associated with this system has reached Costa Rica. This favors occasional gusts in...
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...
Jan
07
Weather Warning
Influence of Cold Surge #8
January 7, 2025
10:00 a.m.
Diagnosis: Cold Surge #8 (EF#8, for its acronym in Spanish) entered the Caribbean Sea on Tuesday, its associated shear line is positioned close to the Nicaraguan Caribbean coast. The presence of...
Dec
31
Weather Warning
Rains of variable intensity during this afternoon and early evening
December 31, 2024
11.30 a.m.
Discussion: The Intertropical Convergence Zone remains close to the country, along with instability in the upper atmosphere, these are factors that increase the high probability of rain and...
Dec
30
Weather Warning (Update)
Isolated showers in some areas of the country in the late afternoon.
December 30, 2024
4 p.m.
Diagnosis: The position of the Intertropical Convergence Zone over the country together with atmospheric instability have generated variable rainfall in the country since the morning. Up to this...
Dec
30
Aviso Meteorológico
Aguaceros fuertes aislados este lunes para algunas zonas del país
30 de diciembre de 2024
9:00 am
Diagnóstico: La posición de la Zona de Convergencia Intertropical sobre el país aunado a inestabilidad en la atmósfera alta generan condiciones favorables para la presencia de lluvias variables...
Dec
29
Weather Warning
Heavy showers this afternoon and early evening
December 29, 2024
11:20 a.m.
Diagnosis: The increase in humidity over southern Central America, favored by very weak trade winds and an anomalous position of the Intertropical Convergence Zone over the country, has generated...
Dec
27
Weather Warning
Precipitation this afternoon and early evening
December 27, 2024
11.00 am
Diagnosis: The increase in humidity over southern Central America, favored by very weak trade winds, instability in the upper atmosphere and the abnormal proximity of the Intertropical...