402  
WGMY80 PGUM 311258  
FLSGUM  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE TIYAN GU  
1058 PM CHST SUN DEC 31 2023  
 
GUC010-311530-  
/O.CON.PGUM.FA.Y.0089.000000T0000Z-231231T1530Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
GUAM-  
1058 PM CHST SUN DEC 31 2023  
   
..FLOOD ADVISORY REMAINS IN EFFECT UNTIL 130 AM CHST MONDAY
 
 
* WHAT...URBAN AND SMALL STREAM FLOODING CAUSED BY EXCESSIVE  
RAINFALL CONTINUES.  
 
* WHERE...GUAM.  
 
* WHEN...UNTIL 130 AM CHST.  
 
* IMPACTS...MINOR FLOODING IN LOW-LYING AND POOR DRAINAGE AREAS.  
 
* ADDITIONAL DETAILS...  
- AT 1056 PM CHST, SATELLITE ESTIMATES INDICATE HEAVY RAIN FROM  
SHOWERS IN THE ADVISORY AREA. THIS WILL CAUSE URBAN AND SMALL  
STREAM FLOODING. BETWEEN 0.6 AND 1.5 INCHES OF RAIN HAVE  
FALLEN.  
- ADDITIONAL RAINFALL AMOUNTS OF 0.6 TO 1.5 INCHES ARE EXPECTED  
OVER THE AREA. THIS ADDITIONAL RAIN WILL RESULT IN MINOR  
FLOODING.  
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
DEDEDO, TAMUNING, YIGO, MANGILAO, CHALAN PAGO-ORDOT,  
BARRIGADA, YONA, HAGATNA HEIGHTS, ANDERSEN AFB, TALOFOFO,  
MONGMONG-TOTO-MAITE, SINAJANA, INARAJAN, ASAN, MERIZO, PITI,  
SANTA RITA AND UMATAC.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD  
DEATHS OCCUR IN VEHICLES.  
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE  
DANGERS OF FLOODING.  
 
BE AWARE OF YOUR SURROUNDINGS AND DO NOT DRIVE ON FLOODED ROADS.  
 
FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE  
YOU ARE RELATIVE TO STREAMS, RIVERS, OR CREEKS WHICH CAN BECOME  
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR  
CREEKS.  
 
PLEASE REPORT OBSERVED FLOODING TO LOCAL EMERGENCY SERVICES OR LAW  
ENFORCEMENT AND REQUEST THEY PASS THIS INFORMATION TO THE NATIONAL  
WEATHER SERVICE WHEN YOU CAN DO SO SAFELY.  
 

 
 
LAT...LON 1334 14461 1336 14462 1335 14461 1336 14461  
1341 14464 1340 14466 1346 14460 1352 14477  
1368 14484 1362 14497 1361 14497 1350 14494  
1341 14480 1325 14477 1322 14473 1321 14463  
1327 14464 1332 14462 1333 14465  
 

 
 
JLS  
 
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