Heavy rain has continued to soak Costa Rica's Pacific coast, with the town of Pinilla in Guanacaste recording 145 millimetres of rain between midnight and Saturday morning. The figures come from the National Meteorological Institute, known as the IMN, in its 10 a.m. bulletin on Saturday 7 November, as a low-pressure system off the Pacific coast kept showers falling over saturated ground.

Hojancha, also in Guanacaste, recorded 85 millimetres in the same period, while totals elsewhere in the province generally ranged between 50 and 60 millimetres. The IMN said soil saturation had passed 90 percent in the North and Central Pacific regions, leaving the ground with little capacity to absorb more water and raising the risk of flooding and landslides if the rain continues.

The National Emergency Commission has a yellow alert in place for five regions: the North, Central and South Pacific, the Central Valley and Huetar Norte. The northern and southern Caribbean remain under a green alert. Forecasters expected the strongest rain in Guanacaste, with thunderstorms elsewhere along the Pacific coast, and warned that short, intense downpours could overwhelm urban drainage and swell streams.

The Pacific low was given a 30 percent chance of developing into a tropical depression within 48 hours in the IMN's Saturday morning report, although the US National Hurricane Center later lowered that probability to 20 percent. Stormy conditions along the Pacific coast were expected to last from Friday through Monday, with gradual improvement by Wednesday. Authorities urged people not to cross flooded streets, rivers or streams, and to take care on mountain roads where rain, fog and landslides can affect travel. Costa Rica Update reported the rainfall figures.