Weather warnings
Aviso Meteorológico-IMN-130724-1030AM
Jul
13
Weather Warning
Accelerated trade winds and displacement of Easterly Wave n.°19
July 13, 2024
10.30 a.m.
Diagnosis: During the first hours of this Saturday, a low concentration of Saharan dust was present over the national territory, and to a greater extent towards the center and north of Central America. The trade winds remain accelerated, with maximum gusts between 30 km/h and 45 km/h in low sectors of the Central Valley and Guanacaste, with maximums in the mountains and occasionally in Guanacaste between 60 km/h and 80 km/h.
Forecast: Numerical models indicate that the concentration of Saharan dust will decrease during the morning of this Saturday and it is not expected to occur during the rest of the weekend or the beginning of next week.
The trade winds will remain accelerated with occasional gusts in the Central Valley (35-50 km/h), Guanacaste (45-55 km/h) and in the mountain ranges of the country (60-80 km/h), especially during the night period. These gusts are in the range of moderate to very strong.
On the other hand, easterly wave n°19 is being monitored. This system is expected to enter the national territory during the early morning period on Sunday. Together with the accelerated trade winds and the drag of humidity from the Caribbean Sea, this system is expected to reinforce the rainfall during the early morning and tomorrow in sectors of the Caribbean and the Northern Zone.
Warning: Special attention in the regions of the Caribbean and the Northern Zone because the rains of previous days keep the soils with high levels of saturation and that increases the vulnerability of the area. Also, attention due to gusts of wind in the mountainous sectors, Guanacaste and in the Central Valley.
Due to the above, the IMN recommends:
• Caution due to saturation of sewers in places prone to this type of flooding.
• 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 when navigating in the air due to increased turbulence.
• Prevention against thunderstorms and seek shelter in a safe place if strong gusts of wind occur or are felt near storm clouds, due to the possible fall of tree branches, power lines, among others. These gusts can reach 80 km/h in some isolated cases.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB page: www.imn.ac.cr
Paulo Solano
Meteorologist
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
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...
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...
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...
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...
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...
Jan
31
Aviso Meteorológico
Lluvias y aguaceros en Limón y Zona Norte este viernes
31 de enero de 2025
4.25 pm
Diagnóstico: El efecto de los vientos alisios fuertes aunados a un pulso húmedo proveniente desde el Mar Caribe está creando nubosidad convectiva ingresando a Limón esta tarde. Se registran...
Jan
26
Aviso Meteorológico
Influencia de Empuje frío #9 disminuye hoy
26 de enero de 2025
10 am
Diagnóstico: El efecto del empuje frío #9 sigue generando vientos alisios muy fuertes en la región esta madrugada y primeras horas de la mañana, registrándose ráfagas de viento de hasta 116.9...
Jan
25
Aviso Meteorológico
Influencia de Empuje frío #9 sobre el país este sábado
25 de enero del 2025
10:45 a.m.
Diagnóstico: El aumento de la presión atmosférica tanto en Centroamérica como el Mar Caribe provocado por el empuje frío #9, genera vientos alisios muy fuertes en la región, registrándose ráfagas...
Jan
24
Aviso Meteorológico
Patrón ventoso este viernes en Costa Rica
24 de enero de 2025
10:30 a.m.
Diagnóstico: El aumento de la presión atmosférica tanto en Centroamérica como el Mar Caribe genera vientos alisios acelerados en la región, registrándose ráfagas de viento de hasta 90 km/h en La...
Jan
23
Weather Warning
Strong to very strong wind gusts due to cold surge #9
January 23, 2025
9:00 a.m.
Diagnosis: The increase in atmospheric pressure in Central America and the Caribbean Sea favors accelerated trade winds, which is generated by the influence of cold push #9. During this Thursday,...
