Flood, Guam
- When
- September 26, 10:00 AM SST to 4:00 PM SST
- Where
- Guam forecast zone
- Property damage
- $40,000
- Reported by
- NEWSPAPER
Flood in Guam, September 26, 2002
65 inches falling between 1000 and 1600. Enhanced monsoon flow caused the rain over the Maraiana Islands.
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $40,000
- 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 GUA wrote it up.
4.93 inches fellon the 26th at NWS Guam with 3.65 inches falling between 1000 and 1600. Enhanced monsoon flow caused the rain over the Maraiana Islands. Some streets and few houses in Barrigada were flooded.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS GUA wrote its last area forecast discussion before the first event at Sep 26, 3:38 AM SST, 6 hours 22 minutes earlier.
Area forecast discussion, Sep 26, 3:38 AM SST, 6 hours 22 minutes before
AREA SYNOPTIC DISCUSSION NATIONAL WEATHER SERVICE TIYAN GU 1 AM GUAM LST FRI SEP 27 2002 WESTERN NORTH PACIFIC BETWEEN EQUATOR AND 25N FROM 130E TO 180. TROPICAL DEPRESSION 25W IS LOCATED NEAR 16N154E...MOVING WEST AT 13 MPH WITH MAXIMUM SUSTAINED WINDS OF 35 MPH. REFER TO JOINT TYPHOON WARNING CENTER BULLETIN WTPN32 PGTW FOR FURTHER DETAILS. LOW LEVEL CONVERGENCE ASSOCIATED WITH DEPRESSION 25W IS PRODUCING SCATTERED SHOWERS AND THUNDERSTORMS BETWEEN 13N AND 18N FROM 148E TO 158E. A MONSOON TROUGH EXTENDS FROM 13N130E TO A WEAK CIRCULATION NEAR GUAM TO TROPICAL DEPRESSION 25W. BROAD SCALE CONVERGENCE IS PRODUCING SCATTERED SHOWERS OVER A LARGE AREA WEST OF THE MARIANAS BETWEEN 12N AND 18N FROM 130E TO 148E. CONVERGENT FLOW ASSOCIATED WITH A TROUGH THAT EXTENDS FROM 3N172E TO 5N175E THEN ACROSS THE DATELINE TO 8N175W IS GENERATING SCATTERED SHOWERS SOUTHEAST OF THE MARSHALL ISLANDS BETWEEN THE EQUATOR AND 9N EAST OF 173E. LOW-LEVEL CONVERGENCE IS PRODUCING SCATTERED SHOWERS NORTH OF 22N FROM 133E TO 140E.
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 Flooding and Flood in Tennessee, September 26 to 27, 2002
- Tropical Storm and Flash Flooding in Mississippi, September 26, 2002
- Flash Flooding and High Wind in Tennessee, September 26 to 27, 2002
- Flash Flooding and High Wind in Mississippi, September 26, 2002
- Strong Wind in Georgia, September 26 to 27, 2002
- High Wind in Alabama, September 26, 2002
- Strong Wind in North Carolina, September 26 to 27, 2002
- Heavy Rain in New York, September 26 to 28, 2002
- Flash Flooding and Flood in Kentucky, September 26 to 27, 2002
- Heavy Rain in New Jersey, September 26 to 28, 2002
- Flash Flooding in Kentucky, September 26 to 27, 2002
- Heavy Rain in Connecticut, September 26 to 28, 2002
More
Every storm in Guam in 2002Every state in 2002This day in weather historyWarnings in Guam, September 2002
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: 5325267.