Puerto Rico Severe Flood Warning | Effective 09/01/2026 00:57

Headline: 
Flood Warning issued September 1 at 3:57AM AST until September 1 at 8:00AM AST by NWS San Juan PR
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
September 1, 2026 - 12:57am
Expires: 
September 1, 2026 - 5:00am
Description: 
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Communities along the Rio Guayanes in Yabucoa. * WHEN...Until 800 AM AST. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 355 AM AST, gauge reports indicated Rio Guayanes is in moderate flood stage. The latest report indicates 22.43 ft. Water likely passing over a low level bridge.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads.
Area Description: 
Yabucoa, PR
Forcast Office: 
NWS San Juan PR
Sender: 
w-nws.webmaster@noaa.gov