Puerto Rico: Flash flood warnings in effect for some northern municipalities until at least 18:30 Nov. 1 /update 1

The US National Weather Service (NWS) has issued flash flood warnings for parts of northern Puerto Rico on Nov. 1. Flash flood warnings are in effect until the following times for the locations listed below:

• Until at least 17:30 Nov. 1: Ceiba, Fajardo, Luquillo, Naguabo, and Rio Grande municipalities

• Until at least 18:30 Nov. 1: Arecibo, Barceloneta, Ciales, Florida, Hatillo, and Utuado municipalities

Officials could amend the warnings for the impacted areas and/or extend them to the surrounding regions on short notice over the coming hours.

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 heavy rain has saturated the soil.

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.