Puerto Rico: Flash flood warning in effect for Canovanas and Carolina municipalities until at least 18:15 June 16 /update 1

The US National Weather Service (NWS) has issued a flash flood warning for the municipalities of Canovanas and Carolina in Puerto Rico on June 16. The warning is in effect until at least 18:15. Officials could amend the warning for the impacted areas and/or extend it to the surrounding regions on short notice over the coming hours. A previously issued flash flood warning for Bayamon and Guaynabo municipalities expired at around 17:30; authorities may issue another flash flood warning for these municipalities over the short term.

Sustained heavy rainfall could trigger flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites located downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where the soil has become saturated by heavy rainfall.

Localized business disruptions may occur in low-lying areas; some businesses might not operate at full capacity because of flood damage to facilities, possible evacuations, and some employees' inability to reach work sites. Transport, electricity, and telecommunications disruptions are also possible in areas impacted by flooding.