Alert archive / Guam / Flash Flood Warnings in 2004
Flash Flood Warning 1, NWS Guam
NWS Guam issued this flash flood warning at Jun 26, 2004, 9:25 PM CDT. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 26, 2004, 9:25 PM CDT (02:25 UTC)
- Expired
- Jun 27, 2004, 2:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Guam
- Area
- Whole counties
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGMY50 PGUM 270228 FFWMY GUZ001-270700- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TIYAN GU 1225 PM LST SUN JUN 27 2004 THE NATIONAL WEATHER SERVICE IN TIYAN GUAM HAS ISSUED A * FLASH FLOOD WARNING FOR SOUTHERN GUAM SOUTH OF A LINE FROM AGAT BAY TO PAGO BAY * UNTIL 5 PM LST TODAY * AT 1220 PM LST...DOPPLER WEATHER RADAR INDICATED A LARGE AREA OF TORRENTIAL RAIN OVER SOUTHERN GUAM WITH RAINFALL RATES UP TO 3 INCHES PER HOUR. THIS AREA HAS BEEN STATIONARY OVER THE SOUTHERN MOUNTAINS. * EXCESSIVE RAINFALL OF AN ADDITIONAL 4 TO 5 INCHES BY 5 PM THIS AFTERNOON WILL PRODUCE FLASH FLOODING IN MOUNTAIN VALLEYS...AT THE BASE OF MOUNTAINS...AND ALONG RIVERS AND STREAMS. IF YOU LIVE IN A FLOOD-PRONE AREA...AT THE BASE OF MOUNTAIN VALLEYS...OR NEAR STREAMS AND RIVERS...GO TO HIGHER GROUND AT ONCE. AVOID DRIVING IN THE WARNED AREA. NEVER TRY TO CROSS OR FORD A FLOODED ROAD. $$ GUARD
3 follow-up statements
000 WGMY70 PGUM 270445 FFSMY GUZ001-270700- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TIYAN GU 245 PM LST SUN JUN 27 2004 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN GUAM... A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 5 PM FOR SOUTHERN GUAM SOUTH OF A LINE FROM AGAT BAY TO PAGO BAY. A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM. AT 240 PM LST...DOPPLER WEATHER RADAR INDICATED A SLOW-MOVING AREA OF TORRENTIAL RAIN OVER GUAM WITH RAINFALL RATES UP TO 4 INCHES PER HOUR. THIS AREA HAS BEEN BRINGING REPEAT HEAVY SHOWERS OVER THE SOUTHERN MOUNTAINS. PRELIMINARY RAINFALL TOTALS SO FAR TODAY INCLUDE... MONGMONG/TOTO/MAITE... 10.51 INCHES GUAM INTERNATIONAL AIRPORT... 9.46 INCHES MANGILAO AUTOMATED OBSERVATION... 7.94 INCHES INARAJAN AUTOMATED OBSERVATION... 7.17 INCHES ANDERSEN AIR FORCE BASE... 4.66 INCHES MERIZO AUTOMATED OBSERVATION... 4.36 INCHES IF YOU LIVE IN A FLOOD-PRONE AREA...AT THE BASE OF MOUNTAIN VALLEYS...OR NEAR STREAMS AND RIVERS...GO TO HIGHER GROUND AT ONCE. AVOID DRIVING IN THE WARNED AREA. NEVER TRY TO CROSS A FLOODED ROAD. $$ STANKO/HENDRICKS
000 WGMY70 PGUM 270552 FFSMY GUZ001-270700- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TIYAN GU 350 PM LST SUN JUN 27 2004 ...SHELTERS OPEN FOR FLOOD VICTIMS ON GUAM... A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 5 PM FOR SOUTHERN GUAM SOUTH OF A LINE FROM AGAT BAY TO PAGO BAY. A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM. SHELTERS ARE NOW OPEN AT THE FOLLOWING LOCATIONS ON GUAM... FB LEON GUERRERO MIDDLE SCHOOL UPI ELEMENTARY SCHOOL ASTUMBO ELEMENTARY SCHOOL MA ULLOA ELEMENTARY SCHOOL MACHANANAO ELEMENTARY SCHOOL GEORGE WASHINGTON HIGH SCHOOL ORDOT CHALAN PAGO ELEMENTARY SCHOOL INARAJAN MIDDLE SCHOOL HS TRUMAN ELEMENTARY SCHOOL MERIZO MARTYRS ELEMENTARY SCHOOL MU LUJAN ELEMENTARY SCHOOL AT 345 PM LST...DOPPLER WEATHER RADAR INDICATED A SLOW-MOVING AREA OF TORRENTIAL RAIN OVER GUAM WITH RAINFALL RATES UP TO 4 INCHES PER HOUR. A BRIEF BREAK IS EXPECTED IN THE NEXT HOUR OR SO...BUT HEAVY SHOWERS WILL ONCE AGAIN MOVE OVER THE SOUTHERN MOUNTAINS. PRELIMINARY RAINFALL TOTALS SO FAR TODAY INCLUDE... MONGMONG/TOTO/MAITE... 11.75 INCHES GUAM INTERNATIONAL AIRPORT... 11.13 INCHES IF YOU LIVE IN A FLOOD-PRONE AREA...AT THE BASE OF MOUNTAIN VALLEYS...OR NEAR STREAMS AND RIVERS...GO TO HIGHER GROUND AT ONCE. AVOID DRIVING IN THE WARNED AREA. NEVER TRY TO CROSS A FLOODED ROAD. $$ STANKO/HENDRICKS
000 WGMY70 PGUM 270643 AAA FFSMY GUZ001-270700- FLASH FLOOD STATEMENT...UPDATED NATIONAL WEATHER SERVICE TIYAN GU 445 PM LST SUN JUN 27 2004 UPDATED TO INCLUDE LATEST SHELTER INFORMATION ...SHELTERS OPEN FOR FLOOD VICTIMS ON GUAM... A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 5 PM FOR SOUTHERN GUAM SOUTH OF A LINE FROM AGAT BAY TO PAGO BAY. A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM. SHELTERS ARE NOW OPEN AT THE FOLLOWING LOCATIONS ON GUAM... FB LEON GUERRERO MIDDLE SCHOOL GEORGE WASHINGTON HIGH SCHOOL INARAJAN MIDDLE SCHOOL HS TRUMAN ELEMENTARY SCHOOL FOR FURTHER INFORMATION REGARDING SHELTERS CONTACT GUAM CIVIL DEFENSE AT 475-9600 AT 345 PM LST...DOPPLER WEATHER RADAR INDICATED A SLOW-MOVING AREA OF TORRENTIAL RAIN OVER GUAM WITH RAINFALL RATES UP TO 4 INCHES PER HOUR. A BRIEF BREAK IS EXPECTED IN THE NEXT HOUR OR SO...BUT HEAVY SHOWERS WILL ONCE AGAIN MOVE OVER THE SOUTHERN MOUNTAINS. PRELIMINARY RAINFALL TOTALS SO FAR TODAY INCLUDE... MONGMONG/TOTO/MAITE... 11.75 INCHES GUAM INTERNATIONAL AIRPORT... 11.13 INCHES IF YOU LIVE IN A FLOOD-PRONE AREA...AT THE BASE OF MOUNTAIN VALLEYS...OR NEAR STREAMS AND RIVERS...GO TO HIGHER GROUND AT ONCE. AVOID DRIVING IN THE WARNED AREA. NEVER TRY TO CROSS A FLOODED ROAD. $$ WELLS/HALL
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Guam wrote its last area forecast discussion before this flash flood warning went out at Jun 26, 9:58 AM CDT, 11 hours 27 minutes earlier.
Area forecast discussion, Jun 26, 9:58 AM CDT, 11 hours 27 minutes before
AREA SYNOPTIC DISCUSSION NATIONAL WEATHER SERVICE TIYAN GU 1 AM GUAM LST SUN JUN 27 2004 WESTERN NORTH PACIFIC BETWEEN EQUATOR AND 25N FROM 130E TO 180. TROPICAL STORM MINDULLE...CENTERED NEAR 15N130E...IS MOVING WEST- NORTHWEST AT 9 MPH WITH MAXIMUM SUSTAINED WINDS OF 60 MPH. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS EXTEND EASTWARD FROM MINDULLE TO 134E BETWEEN 10N AND 17N. SEE JOINT TYPHOON WARNING CENTER BULLETIN WTPN31 PGTW FOR FURTHER DETAILS. TROPICAL STORM TINGTING...CENTERED NEAR 12N150E...IS MOVING NORTHWEST AT 5 MPH WITH MAXIMUM SUSTAINED WINDS OF 45 MPH. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS ASSOCIATED WITH TINGTING EXTEND BETWEEN 8N AND 16N FROM 140E TO 157E. THIS INCLUDES THE MARIANA ISLANDS AND CHUUK STATE. SEE JOINT TYPHOON WARNING CENTER BULLETIN WTPN32 PGTW FOR FURTHER DETAILS. A MONSOON TROUGH STRETCHES FROM MINDULLE EASTWARD THROUGH TINGTING TO 10N160E. A TRADE WIND TROUGH EXTENDS FROM 10N160E TO THE EQUATOR AND 167E. CONVERGENT FLOW ASSOCIATED WITH THE MONSOON TROUGH EAST OF TINGTING IS PRODUCING SCATTERED SHOWERS SOUTHWEST OF WAKE ISLAND BETWEEN 12N AND 20N FROM 157E TO 170E. DIVERGENT WINDS ALOFT SOUTH OF AN UPPER-LEVEL LOW CENTERED NEAR 30N170E IS PROVIDING THE LIFT TO GENERATE SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS NORTHEAST OF WAKE ISLAND BETWEEN 20N AND 25N FROM 168E TO 178E. TRADE WIND CONVERGENCE IS GENERATING SCATTERED SHOWERS NEAR THE REPUBLIC OF THE MARSHALL ISLANDS BETWEEN THE EQUATOR AND 5N FROM 170E TO 180...AND NORTHEAST OF MAJURO BETWEEN 10N AND 13N FROM 172E TO 175E.
The office that day
Everything else NWS Guam issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 2:00 AM CDT | Flash Flood Warning | GUM | 6 hr | |
| Jun 27, 8:00 AM CDT | Flash Flood Warning | GUM | 6 hr | |
| Jun 27, 2:00 PM CDT | Flash Flood Warning | GUM | 10 hr |
Nearby
Flash Flood Warnings in Guam, 2004Every flash flood warning in 2004
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.