Weather warnings
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...
Weather warnings history
In this section you will find the weather warnings history.
Weather Warning-IMN-191123-10:20 a.m.
Nov
19
Weather Warning
Variable rains in South and Central Pacific regions
November 19, 2023
10:20 a.m.
Diagnosis: The Intertropical Convergence Zone, now further south, still maintains instability for these sectors (especially the South and Central Pacific). In addition, local factors such as humidity inflows and instability of the local upper atmosphere will favor rains again in recurring sectors.
Forecast: For the late morning and early afternoon hours, scattered rains and downpours are forecast in mountainous sectors of the South Pacific and Central Pacific, which will extend to lower parts and the west in a more isolated manner, with the presence of a storm. Occasional electricity, towards the end of the afternoon. The estimated amounts will be between 20 – 40 mm with specific maximums of up to 70 mm. The Central Valley will have this type of precipitation with a possible short-duration storm, with estimated amounts between 10 - 30 mm with localized maximums of 45 mm.
The Caribbean and Northern regions will experience showers in the mountains, with very localized downpours in lower parts. The estimated amounts will be between 10 – 20 mm with maximums of 50 mm.
At the end of the afternoon, isolated showers with amounts of less than 40 mm will occur around the Peninsula and Gulf of Nicoya.
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
Jose Valverde Mora
Meteorologist
DMSA-IMN