Weather warnings
Weather Warning-IMN-150624-0925 a.m.
Jun
15
Weather Warning
Saturday with variable rains for the Pacific slope and Central Valley
June 15, 2024
9:25 a.m.
Diagnosis: A wide region of instability over all of Central America, due to large-scale forcing along the Intertropical Convergence Zone and the passage of tropical waves, has caused heavy downpours to occur this Saturday in our country in coastal areas of the Central Pacific, in the South Pacific, in addition to cloudy conditions with occasional rain in the Central Valley. In the last 6 hours, heavy downpours have been recorded in the South Pacific, with accumulations of 130 mm in Osa, 55 mm in Puerto Jiménez. For the Central Pacific, accumulations between 10 - 25 mm are recorded in coastal areas. In the case of the North Pacific and the Central Valley, accumulations of less than 10 mm are recorded.
Forecast: During the morning of this Saturday, the entry of humidity will continue accompanied by heavy downpours in coastal areas of the South Pacific and parts of the Central Pacific (Puerto Cortés, Bahía Ballena, Sierpe, surroundings of the Golfo Dulce, Quepos). The estimated 12-hour accumulations will be between 30 - 50 mm with maximums between 70 - 90 mm. The North Pacific will have occasional showers in the extreme west coast, which will enter towards the center of the region. The accumulations will be between 20 - 40 mm with localized maximums of 80 mm. The Central Valley will be cloudy with intermittent rain and fog. The accumulations will be between 5 - 20 mm with maximums of 50 mm (towards the end of the afternoon and nighttime period). The Caribbean and Northern Zone regions will have a medium probability of isolated showers accompanied by storms for the afternoon period. The accumulated amounts will be between 10 - 40 mm with maximums of 70 mm
Warning: The rains forecast in the coastal sector of the Pacific and low areas could cause flooding due to overflowing rivers and ravines (peninsular sectors). Possibility of landslides in saturated soils of the mountains of the South Pacific, Central Pacific and western Caribbean.
Due to the above, the IMN recommends:
• Caution due to sewer saturation in places prone to this type of flooding.
• Prevention against electrical storms and seek shelter in a safe place in case of strong gusts of wind 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
Jose Pablo Valverde Mora
Meteorólogo
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
Jun
27
Weather Warning
Instability of tropical wave #13 and the Central American Gyre for this Thursday
June 27, 2024
8:00 a.m.
Diagnosis: Tropical wave #13 over the waters of the North Pacific of our country leaves instability in its wake, which is added to the presence of southwesterly flows throughout the Pacific...
Jun
26
Aviso Meteorológico (Actualización)
Onda tropical #13 acercándose al país esta noche y posible Giro Centroamericano (actualización)
26 de junio de 2024
5:00 pm
Diagnóstico: Condiciones inestables en la atmósfera han favorecido lluvias variables sobre le territorio nacional, las más fuertes en la Zona Norte y Guanacaste. Los montos máximos registrados...
Jun
26
Weather Warning
Tropical wave #13 approaching the country tonight and possible Central American Gyre
June 26, 2024
10.15 a.m.
Diagnosis: The prevailing conditions in southern Central America are very unstable, that is, suitable for the occurrence of heavy rain events in the country tonight and tomorrow Thursday. On the...
Jun
26
Meteorological Warning
Showers in mountainous areas of the Caribbean tonight
June 26, 2024
12:35 a.m.
Diagnosis: Unstable atmospheric conditions, generated after the transit of tropical wave #12 over the country this Tuesday, have favored downpours with isolated electrical storms in mountainous...
Jun
25
Aviso Meteorológico (Actualización)
Tropical wave #12
June 25, 2024
4.30 p.m.
Diagnosis: The axis of tropical wave #12 (OT 12) is currently at 84°W, over the country. This system will continue to move west. In the last 5 hours, showers with thunderstorms have been recorded...
Jun
25
Weather Warning
Displacement of easterly wave no.°12
June 25, 2024
9:00 a.m.
Diagnosis: Easterly wave #12 (OT 12) is currently at 81°W, near the border between Costa Rica and Panama. This system will continue to move westward, entering the national territory on Tuesday....
Jun
24
Weather Warning
Local variable rainfall during this afternoon and evening
June 24, 2024
11.20 a.m.
Discussion: Local factors such as sea breezes, surface moisture contributions and warm temperatures will favor variable rainfall during this afternoon in mountainous areas of the Pacific slope...
Jun
21
Weather Warning (Update)
Heavy downpours with a storm this afternoon and night
June 21, 2024
4:50 p.m.
Diagnosis: The predominance of high humidity and instability, as well as local factors, warm morning temperatures and the entry of sea breezes; add up on this Friday to the passage of tropical...
Jun
21
Weather Warning
Heavy showers and thunderstorms this afternoon and evening
June 21, 2024.
10.25 a.m.
Discussion: High humidity and instability prevail over Costa Rica and its surroundings, as well as local factors, warm morning temperatures and the entry of sea breezes; the passage of tropical...
Jun
20
Weather Warning (Update)
Heavy showers continue during the early hours of the night
June 20, 2024
5 p.m.
Discussion: Unstable conditions continue today in Costa Rica, different factors favor this pattern among them: high humidity content, the entry of sea breezes, high temperatures and areas of...