Puerto Rico, 1998

Flash Flooding in Puerto Rico, August 24, 1998

August 24, 1998 · NWS SJU · 2 events in 2 counties and zones

A strong tropical wave produced widespread flooding and damaging winds across the north and east sections of Puerto rico. Flooded roads, landslides and widespread power outages were reported across the east sections of Puerto Rico.

The toll

Deaths
0
Injuries
0
Property damage
$500,000
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.

A strong tropical wave produced widespread flooding and damaging winds across the north and east sections of Puerto rico. Flooded roads, landslides and widespread power outages were reported across the east sections of Puerto Rico. In Vieques a stream went out of its banks flooding Villa Muneca sector. Two people were evacuated. Flooding of streets were reported in Carolina, Humacao, and Naguabo. Landslides were reported in Ceiba, Canovanas, and Toa Alta. About 15000 users were without electricity due to trees falling on power lines. An unofficial spotter report from Aibonito indicated a 24 hour rainfall value of 7.00 inches ending at 6 am on August 25th. A peak gust of 47 mph was recorded at Isla Verde International Airport.

Event by event

2 flash flood. Local standard time, as filed.

Flash Flood, Humacao

When
August 24, 12:00 PM AST to 8:00 PM AST
Where
Humacao County, Countywide
Property damage
$250,000
Reported by
EMERGENCY MANAGER

Flash Flood, San Juan

When
August 24, 12:00 PM AST to 8:00 PM AST
Where
San Juan County, Countywide
Property damage
$250,000
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

More

Every storm in Puerto Rico in 1998Every state in 1998This day in weather historyWarnings 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: 5663942, 5663943.