Flash Flood in Puerto Rico, August 11, 1998

Name: Flash Flood in Puerto Rico, August 11, 1998
Start: 1998-08-11T13:00
End: 1998-08-11T16:00
Location: Puerto Rico

August 11, 1998 · NWS SJU · 1 event in 1 county or zone

Heavy rains produced flooding and landslides in Caimito sector in San Juan. Twenty five homes were totally or partially damaged when a stream went out of its banks.

The toll

Deaths: 0
Injuries: 0
Property damage: $500,000
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 produced flooding and landslides in Caimito sector in San Juan. Twenty five homes were totally or partially damaged when a stream went out of its banks. Several roads between Caguas and San Juan were also impassable affecting several vehicles. In Guaynabo a small stream went out of its banks affecting a parking lot and several houses.

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, San Juan

When: August 11, 1:00 PM AST to 4:00 PM AST
Where: San Juan County, North Portion
Property damage: $500,000
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

Every storm in Puerto Rico in 1998 Every state in 1998 This day in weather history Warnings in Puerto Rico, August 1998

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: 5663938.