Flash Flood, Humacao
- When
- September 19, 2:30 PM AST to 4:30 PM AST
- Where
- Humacao County, West Portion
- Reported by
- EMERGENCY MANAGER
Flash Flood in Puerto Rico, September 19, 1999
Civil Defense indicated various mudslides in San Lorenzo, Cayey and Naranjito. Flooding was also reported in various sectors in Cayey.
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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 various mudslides in San Lorenzo, Cayey and Naranjito. Flooding was also reported in various sectors in Cayey.
Event by event
1 flash flood. Local standard time, as filed.
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
- Rip Current in Alabama, September 19, 1999
- Hail and Damaging Wind in Wisconsin, September 19, 1999
- Flash Flood in Colorado, September 19, 1999
- Hail and Damaging Winds in Oklahoma, September 19, 1999
- Waterspouts in Florida, September 19, 1999
- Hail and Damaging Wind in Wisconsin, September 19, 1999
- High Surf in U.S. Virgin Islands, September 19, 1999
- Hail in Arizona, September 19, 1999
- Hail in Iowa, September 19, 1999
- Hail in Arizona, September 19, 1999
- Flash Flood in Florida, September 19, 1999
- Lightning Strike in Texas, September 19, 1999
More
Every storm in Puerto Rico in 1999Every state in 1999This day in weather historyWarnings in Puerto Rico, September 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: 5723601.