Funnel Cloud, Guam
- When
- August 5, 3:55 PM SST to 4:10 PM SST
- Where
- Guam County, Central Portion
- Reported by
- OFFICIAL NWS OBS.
Funnel Cloud in Guam, August 5, 1999
Funnel cloud observed to the east of the Natioanl 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.
Funnel cloud observed to the east of the Natioanl Weather Service Office at Tiyan.
Event by event
1 funnel cloud. Local standard time, as filed.
What these are
- Funnel Cloud
- A rotating column of cloud extending from a thunderstorm that did not reach the ground.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado in Colorado, August 5, 1999
- Lightning Strike in Arizona, August 5, 1999
- Lightning Strike in Oklahoma, August 5, 1999
- Hail and Damaging Winds in New Hampshire, August 5, 1999
- Damaging Wind in Connecticut, August 5, 1999
- Lightning Strike in Wyoming, August 5, 1999
- Lightning Strike in Washington, August 5, 1999
- Hail and Damaging Winds in Massachusetts, August 5, 1999
- Hail and Damaging Winds in New York, August 5, 1999
- Hail and Damaging Winds in Ohio, August 5, 1999
- Hail and Damaging Winds in Connecticut, August 5, 1999
- Waterspouts in Pennsylvania, August 5 to 21, 1999
More
Every storm in Guam in 1999Every state in 1999This day in weather historyWarnings in Guam, August 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: 5721546.