SAN JUAN – The National Meteorological Service (SNM) in San Juan issued a flood watch on Wednesday until Friday night.
Unstable weather conditions coupled with abundant tropical humidity will cause periods of heavy rain from Thursday afternoon through Friday night.
Saturated soils and a wetter weather pattern is expected by the end of the workweek that will result in high potential for flash floods and landslides, particularly in eastern Puerto Rico.
There is a high risk of flash floods on the local islands, particularly from Thursday afternoon to Friday night. Lots of low-level moisture that is associated with a tropical disturbance that is now located east of the Lesser Antilles and is expected to combine with an upper-level trough to result in periods of moderate to heavy rainfall in Puerto Rico and the Virgin Islands. from the United States from Thursday afternoon to Friday night.
According to the latest guide, rains and storms will hit the US Virgin Islands and eastern Puerto Rico on Thursday afternoon, with increasing frequency on Friday morning. Showers and thunderstorms will sweep across western areas of Puerto Rico at noon on Friday.
Rain accumulations in eastern Puerto Rico are expected to range between 2 and 4 inches with isolated larger amounts. In other parts of Puerto Rico and in the US Virgin Islands, 1 to 3 inches of rainfall are possible larger amounts.
Soils are already saturated in the eastern third of Puerto Rico and portions of the western interior, where rivers and streams are running well above normal. As a result, there is a high risk of flash floods, particularly in the eastern third of the island from Thursday afternoon to Friday night. Any prolonged period of heavy rain will result in landslides in areas of steep terrain.
Right now, the highest risk of heavy rain is forecast on Friday.
A flash flood watch means that conditions can develop that lead to flash flooding. Flash flooding is a very dangerous situation.
You must monitor the latest forecasts and be prepared to take action if flash flood warnings are issued.