Weather warnings

Jun

28

Informative Meteorological Notice

Tropical Depression 2 formed in the Atlantic Ocean

June 28, 2024
5:35 p.m.

Diagnosis: On Friday afternoon, tropical wave n°16 evolved into Tropical Depression 2 (DT 2). According to the NHC, this cyclone will be strengthening into a tropical storm in the next few hours...

See More


Jun

28

Weather Warning (Update)

Influence of the Central American Gyre continues this Friday (update)

June 28, 2024
4:15 p.m.

Diagnosis: This Friday, a predominance of humidity flow from the Pacific Ocean to the national territory continues, due to the development of the Central American Gyre in the region. During the...

See More


Jun

28

Weather Warning

Central American Gyre continue the influence this Friday

June 28, 2024
10:00 a.m.

Diagnosis: This Friday a predominance of humidity flow from the Pacific Ocean to the national territory continues, this due to the development of a Central American Gyre in the region....

See More


Jun

28

Aviso Meteorológico

Lluvias persisten debido a la Influencia de Giro Centroamericano durante esta noche

28 de junio de 2024
01:30 a.m.

Diagnóstico: Condiciones atmosféricas húmedas e inestables debido al Giro Centroamericano en la región, está generando constante flujo de humedad desde el Océano Pacífico al territorio nacional,...

See More


Jun

27

Weather Warning (Update)

Influence of the Central American Gyre this Thursday

June 27, 2024
05.30 p.m.

Discussion: The development of a Central American Gyre in the region is generating a constant flow of humidity from the Pacific Ocean to the national territory, causing rainy conditions during...

See More


Weather warnings history

In this section you will find the weather warnings history.

« Back

Aviso Meteorológico-IMN-250624-0900am

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. OT 12, together with other factors such as daytime warming, the entry of sea breezes and the current position of the Intertropical Convergence Zone (ITCZ), maintains atmospheric instability in the region.

Forecast: In the afternoon and early evening, showers are expected with a moderate-high probability of thunderstorms in the North Pacific, South Pacific, Northern Zone and Central Valley. Precipitation is expected to begin in mountainous areas and spread to low areas such as plains and coasts. Accumulations between 20 mm and 60 mm are expected, with maximums located between 60 mm and 80 mm.

In the mountains of the Central Pacific and mountains to the west of the Caribbean, showers are expected that could spread to surrounding plains at the end of the afternoon and during the night. The probability of thunderstorms in these areas is moderate. Accumulations between 20 mm and 40 mm are expected, with maximums located between 60 mm and 70 mm.

Warning: The rains that may occur in urban areas can cause flash flooding and sewer saturation due to the high saturation of the soils. Saturated soils are present in the mountains of the South Pacific, low areas near the coasts of the Central Pacific and South Pacific, the mountains of the Northern Zone bordering the Central Valley, as well as both peninsulas. All regions are vulnerable to landslides and possible flooding.

Due to the above, the IMN recommends:

• Caution due to sewer saturation in places prone to this type of flooding.
• Prevention against thunderstorms and seek shelter in a safe place if 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 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