Funnel Cloud, Guam
- When
- May 23, 12:46 PM SST to 12:51 PM SST
- Where
- Guam County, Andersen Afb
- Reported by
- OTHER FEDERAL AGENCY
Funnel Cloud in Guam, May 23, 2002
Funnel Cloud observed northwest of Andersen AFB. Estimated distance was 12 miles.
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 northwest of Andersen AFB. Estimated distance was 12 miles.
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 May 23, 3:41 AM SST, 9 hours 5 minutes earlier.
Area forecast discussion, May 23, 3:41 AM SST, 9 hours 5 minutes before
AREA SYNOPTIC DISCUSSION NATIONAL WEATHER SERVICE TIYAN GU 1 AM GUAM LST FRI MAY 24 2002 WESTERN NORTH PACIFIC BETWEEN EQUATOR AND 25N FROM 130E TO 180. A COLD FRONT EXTENDS FROM 25N165E WESTWARD TO 24N150E. SCATTERED SHOWERS ARE FOUND ALONG AND UP TO 200 MILES NORTH OF THIS BOUNDARY. A NEAR-EQUATORIAL TROUGH EXTENDS FROM 10N138E TO A CIRCULATION NEAR 4N148E...THEN EAST TO 7N162E AND SOUTHEAST TO THE EQUATOR AT 173E. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE LOCATED BETWEEN 1N AND 10N FROM 148E TO 172E. AN UPPER-LEVEL TROUGH EXTENDS FROM 25N170E TO 18N160E TO 15N140E TO 10N132E. FAVORABLE UPPER-LEVEL WINDS ON THE SOUTH SIDE OF THE TROUGH ARE PRODUCING THREE AREAS OF SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. THE FIRST IS 75 MILES EITHER SIDE OF A LINE FROM 14N160 TO 11N151E. THE SECOND AREA IS SOUTHWEST OF GUAM FROM 10N TO 13N BETWEEN 142E AND 145E. THE THIRD AREA IS JUST NORTHWEST OF YAP OR 75 MILES EITHER SIDE OF A LINE FROM 9N137E TO 13N138E.
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
- Lightning Strike in North Carolina, May 23, 2002
- Tornadoes and Hail in Texas, May 23 to 24, 2002
- Wildfire in Alaska, May 23 to 31, 2002
- Lightning Strike in Iowa, May 23, 2002
- Damaging Wind in Colorado, May 23, 2002
- Hail in Oklahoma, May 23 to 24, 2002
- Hail in Oklahoma, May 23, 2002
- Winter Storm in Colorado, May 23 to 24, 2002
- Hail in Texas, May 23, 2002
- Hail in Wisconsin, May 23, 2002
- Hail in Kansas, May 23, 2002
More
Every storm in Guam in 2002Every state in 2002This day in weather historyWarnings in Guam, May 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: 5284385.