Flash Flood, San Juan
- When
- December 5, 2:00 PM AST to 6:00 PM AST
- Where
- San Juan County, Central Portion
- Reported by
- EMERGENCY MANAGER
Flash Flooding in Puerto Rico, December 5, 1999
Civil Defense indicated flooding along Cibuco river in Vega Alta and numerous landslides in Naranjito. Fajardo River overflowed its banks flooding roads 3 in Fajardo and 30 in Naguabo.
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 2
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What happened
The episode as NWS SJU wrote it up.
Civil Defense indicated flooding along Cibuco river in Vega Alta and numerous landslides in Naranjito. Fajardo River overflowed its banks flooding roads 3 in Fajardo and 30 in Naguabo.
Event by event
2 flash flood. Local standard time, as filed.
Flash Flood, Humacao
- When
- December 5, 2:00 PM AST to 6:00 PM AST
- Where
- Humacao County, Fajardo
- Reported by
- EMERGENCY MANAGER
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
More
Every storm in Puerto Rico in 1999Every state in 1999This day in weather historyWarnings in Puerto Rico, December 1999
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 5724480, 5724481.