808
WGMY80 PGUM 120431
FLSGUM
FLOOD ADVISORY
NATIONAL WEATHER SERVICE TIYAN GU
231 PM CHST THU MAR 12 2026
GUC010-120600-
/O.NEW.PGUM.FA.Y.0040.260312T0431Z-260312T0600Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUAM-
231 PM CHST THU MAR 12 2026
..FLOOD ADVISORY IN EFFECT UNTIL 4 PM CHST THIS AFTERNOON
* WHAT...URBAN AND SMALL STREAM FLOODING CAUSED BY EXCESSIVE
RAINFALL IS EXPECTED OR OCCURRING.
* WHERE...GUAM.
* WHEN...UNTIL 400 PM CHST.
* IMPACTS...MINOR FLOODING IN LOW-LYING AND POOR DRAINAGE AREAS.
RIVER OR STREAM FLOWS ARE ELEVATED. PONDING OF WATER IN URBAN OR
OTHER AREAS IS OCCURRING OR IS IMMINENT. RISES IN SMALL STREAMS.
* ADDITIONAL DETAILS...
- AT 229 PM CHST, DOPPLER RADAR INDICATED HEAVY RAIN. THIS WILL
CAUSE URBAN AND SMALL STREAM FLOODING. BETWEEN 0.5 AND 1 INCH
OF RAIN HAS FALLEN.
- ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 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, 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.
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 1333 14461 1335 14461 1337 14461 1338 14462
1340 14463 1341 14462 1344 14460 1345 14459
1346 14460 1348 14461 1348 14462 1350 14475
1352 14476 1354 14478 1366 14483 1368 14484
1368 14485 1368 14487 1363 14492 1362 14496
1361 14497 1360 14498 1359 14498 1353 14495
1350 14494 1341 14480 1331 14479 1332 14465
KK/JW
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