052  
WGMY80 PGUM 130737  
FLSGUM  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE TIYAN GU  
537 PM CHST WED MAY 13 2026  
 
GUC010-130930-  
/O.NEW.PGUM.FA.Y.0054.260513T0737Z-260513T0930Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
GUAM -  
537 PM CHST WED MAY 13 2026  
   
..FLOOD ADVISORY IN EFFECT UNTIL 730 PM CHST THIS EVENING
 
 
* WHAT...URBAN AREA AND SMALL STREAM FLOODING CAUSED BY EXCESSIVE  
RAINFALL IS EXPECTED.  
 
* WHERE...CENTRAL AND SOUTHERN GUAM...  
 
* WHEN...UNTIL 730 PM CHST.  
 
* IMPACTS...MINOR FLOODING IN LOW-LYING AND POOR DRAINAGE AREAS.  
WATER OVER ROADWAYS.  
 
* ADDITIONAL DETAILS...  
- AT 535 PM CHST, TRAINED WEATHER SPOTTERS REPORTED HEAVY RAIN IN  
THE ADVISORY AREA DUE TO THUNDERSTORMS. THIS WILL CAUSE URBAN AND  
SMALL STREAM FLOODING. BETWEEN 0.25 AND 0.5 INCHES OF RAIN HAVE  
FALLEN.  
- ADDITIONAL RAINFALL AMOUNTS OF 0.75 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, MANGILAO, CHALAN PAGO-ORDOT, BARRIGADA, YONA,  
HAGATNA HEIGHTS, 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 AWARE OF YOUR SURROUNDINGS AND DO NOT DRIVE ON FLOODED ROADS.  
 

 
 
LAT...LON 1335 14464 1337 14464 1348 14471 1350 14473  
1350 14475 1357 14480 1356 14482 1356 14481  
1355 14484 1347 14488 1341 14481 1327 14479  
1323 14476 1325 14469 1331 14465 1336 14465  
1339 14466 1338 14465  
 

 
 
TM  
 
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