Puerto Rico, 2001

Flash Flood in Puerto Rico, September 22, 2001

September 22, 2001 · NWS SJU · 1 event in 1 county or zone

Heavy rains caused Rio Guanajibo to overflow its banks, flooding various roads in Mayaguez, San German and Hormigueros.

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.

Heavy rains caused Rio Guanajibo to overflow its banks, flooding various roads in Mayaguez, San German and Hormigueros.

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Mayaguez and Vicinity

When
September 22, 6:00 PM AST to 8:00 PM AST
Where
Mayaguez and Vicinity County, Central Portion
Reported by
LAW ENFORCEMENT

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 2001Every state in 2001This day in weather historyWarnings in Puerto Rico, September 2001

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 2026-09-24. Each event’s entry at NCEI: 5269126.