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Aviso Meteorológico -IMN-240922-1100 am



Weather Warning

Tropical Depression #9 intensifies into Tropical Storm Ian and will present indirect influence over the country this Sunday and Monday

September 24, 2022
11.00 a.m.

Diagnosis: Tropical Depression #9 has intensified to Tropical Storm Ian during the early morning, receiving the name Ian. This system is located in the Caribbean Sea about 800 km northeast (NE) of Puerto Limon and currently has no influence over the country. According to the U.S. National Hurricane Center, Ian is heading towards the Gulf of Mexico at a speed of 24 km/h and is registering maximum sustained winds of 75 km/h.

Forecast: Due to its path south of Jamaica, Tropical Storm Ian will have indirect influence over the national territory on Sunday and Monday, modulating the weather during these days.

The presence of Ian in the Caribbean will cause the Intertropical Convergence Zone to be located over Costa Rica and consequently generate a strengthening of rainfall from the afternoon period on Sunday and at least until Monday.

It is also estimated that rainfall will be more frequent in the maritime and coastal sectors of the Central Pacific, South Pacific, as well as the North Pacific during the night and early morning of Monday. The estimated amounts in 24h are estimated between 60 - 90 mm with punctual maximums of up to 150 mm for both days.

Warning: Caution in the coastal/mountainous regions of the Pacific, Central Valley, Northern Zone and Caribbean mountains, since these regions present high saturation levels due to the intense downpours of the last few days.

Due to the above, the IMN recommends:

  • Caution for sewer saturation and possible flash floods, as well as the main routes of the country before heavy rainfall events.
  • Prevention before thunderstorms and seek shelter in a safe place in case of strong gusts of wind near the storm clouds, due to the possible fall of tree branches, power lines, among others.
  • Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page:

Juan Diego Naranjo Díaz