Guam, 1999

Funnel Cloud in Guam, July 30, 1999

July 30, 1999 · NWS GUA · 1 event in 1 county or zone

Funnel cloud sighted from the Saipan International Airport.

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 sighted from the Saipan International Airport.

Event by event

1 funnel cloud. Local standard time, as filed.

Funnel Cloud, Saipan

When
July 30, 2:25 PM SST to 2:45 PM SST
Where
Saipan County, Saipan Intl Airport
Reported by
TRAINED SPOTTER

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

More

Every storm in Guam in 1999Every state in 1999This day in weather historyWarnings in Guam, July 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: 5701322.