Flood, Guam
- When
- September 7, 12:00 AM SST to 4:00 AM SST
- Where
- Guam County, Central Portion
- Reported by
- OFFICIAL NWS OBS.
Flood in Guam, September 7, 1999
74 of an inch of rain falling between midnight and 4 am at the National Weather Service Office at Tiyan.
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 GUA wrote it up.
Showers brought a brief period of heavy rain to parts of the island of Guam with 0.74 of an inch of rain falling between midnight and 4 am at the National Weather Service Office at Tiyan.
Event by event
1 flood. Local standard time, as filed.
What these are
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flood in Pennsylvania, September 7, 1999
- Tornado and Hail in Iowa, September 7, 1999
- Flash Flood in Pennsylvania, September 7, 1999
- Flash Flooding and Hail in Oklahoma, September 7, 1999
- Hail and Damaging Winds in Oklahoma, September 7 to 8, 1999
- Hail and Damaging Wind in Georgia, September 7, 1999
- Flood in Florida, September 7, 1999
- Flash Flooding and Hail in Virginia, September 7, 1999
- Damaging Wind in Louisiana, September 7, 1999
- Flash Flood in Pennsylvania, September 7, 1999
- Damaging Wind in West Virginia, September 7, 1999
- Hail in Minnesota, September 7, 1999
More
Every storm in Guam in 1999Every state in 1999This day in weather historyWarnings in Guam, 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 2026-09-24. Each event’s entry at NCEI: 5720397.