Weather warnings
Aviso Meteorológico-IMN-240224-11:10am
Feb
24
Weather Warning
Cold Surge #19 Influence
February 24, 2024
11.30 am
Diagnosis: The displacement of cold surge # 19 (CS) over Central America and the Caribbean Sea, will be generating a gradual increase in the speed of winds with a North/Northeast component starting this Saturday night, being even more evident on the day Sunday.
Forecast: Moderate to strong winds are expected during the night of this Saturday in the north and center of the country. The winds will be strong this Sunday, gusts will range between 40-75 km/h in the Central Valley and lower parts of the North Pacific; While in the center/north of Guanacaste and the mountain ranges the gusts are estimated between 70-95 km/h, gusts greater than 100 km/h could occur occasionally in the north of Guanacaste.
Regarding precipitation, little rain is expected associated with this event, specifically there could be weak rain/drizzle in the Caribbean and the Northern Zone during the night and early hours of Sunday, with accumulated amounts between 5-30 mm. in periods of 6-12 hours. Part of the cloud layer may extend to the North and East of the Central Valley causing scattered light drizzle at night. For the rest of the country, no significant rainfall related to this CS is expected. Although it should be noted that this Saturday afternoon, isolated showers could develop in the mountains of the Central and South Pacific, as well as in the western periphery of the Central Valley due to the effects of moisture entering from the Pacific Ocean.
The front and the cold mass of this CS are not expected to reach the country, therefore, no significant decrease in temperatures is expected. It is only foreseeable, due to the effect of the north wind, a small decrease in maximum temperatures this Sunday and eventually on Monday.
Current analysis indicates that strong winds will continue for much of next week.
Warning: Special attention due to very strong gusts of wind in the North Pacific and the Central Valley.
Due to the above, the IMN recommends:
• Prevention of wind gusts and their possible impact on roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country and Guanacaste (national parks, volcanoes). • Caution in air navigation due to increased turbulence, as well as in maritime navigation due to increased rough seas, especially in the North Pacific, Gulf of Nicoya and northern Central Pacific. • Avoid burning of all types, as they can get out of control. • Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr
Gabriela Chinchilla Ramírez.
Meteoróloga
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
Jul
27
Weather Warning
Tropical wave #21 passes over Costa Rica this Saturday
July 27, 2024
09.20 a.m.
Discussion: The entry of tropical wave #21 this morning and the activity associated with the Intertropical Convergence Zone have accentuated very humid and unstable atmospheric conditions in the...
Jul
26
Weather Warning (Update)
Variable rain activity for this afternoon and evening in the country
July 26, 2024
3:35 p.m.
Diagnosis: Unstable atmospheric conditions caused by the proximity of the Intertropical Convergence Zone, high humidity content and local factors have generated rainfall this afternoon in several...
Jul
26
Meteorological Warning
Variable rain activity for this afternoon and evening in the country
July 26, 2024
10:40 am
Diagnosis: Unstable atmospheric conditions will occur again this Friday over the country. This is due to the proximity of the Intertropical Convergence Zone, the high humidity content and local...
Jul
26
Meteorological Warning
Unstable atmospheric conditions during this night
July 25, 2024
10:55 pm
Diagnosis: The high humidity content and the activity associated with the Intertropical Convergence Zone, which remains over the country, favor unstable atmospheric conditions in the national...
Jul
25
Meteorological Warning
Showers with thunderstorms this afternoon and evening in several areas of the country
July 25, 2024
10:30 am
Diagnosis: The position of the Intertropical Convergence Zone over the country, together with local factors such as high temperatures and the entry of sea breezes, favor unstable atmospheric...
Jul
24
Weather Warning
Heavy showers and thunderstorms this afternoon and evening
July 24, 2024
9:55 a.m.
Diagnosis: Humid atmospheric conditions will predominate due to the Intertropical Convergence Zone being active over the national territory. This will produce isolated showers in the north of the...
Jul
23
Weather Warning
Intertropical Convergence Zone over Costa Rica
July 23, 2024
11:00 am
Diagnosis: Humid and unstable atmospheric conditions prevail this Tuesday, due to the Intertropical Convergence Zone is active over the national territory, which has left weak rains both in the...
Jul
23
Aviso Meteorológico
Aguaceros localizados en la Vertiente del Pacífico y Zona Norte durante esta noche
22 de julio de 2024
11:30 p.m.
Diagnóstico: Condiciones atmosféricas húmedas e inestables y la cercanía de la Zona de Convergencia Intertropical, favorecen precipitaciones de variable intensidad, incluyendo aguaceros con...
Jul
22
Weather Warning
Isolated showers with thunderstorms this afternoon
July 22, 2024.
1.45 p.m.
Discussion: The proximity of the Intertropical Convergence Zone to the national territory causes a significant contribution of humidity and instability, which is generating cloud developments and...
Jul
21
Weather Warning
Trade winds in the west side of Caribbean Sea and Intertopical Convergence Zone over the country this afternoon
July 21, 2024
09:45 a.m.
Diagnosis: The presence of accelerated trade winds in the west of the Caribbean Sea basin is perceived in northern sectors of the country, which favors the drag of humidity with the presence of...