145
WGMY50 PGUM 141947
FFWGUM
GUC010-MPC100-142130-
/O.NEW.PGUM.FF.W.0012.260414T1947Z-260414T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TIYAN GU
547 AM CHST WED APR 15 2026
THE NATIONAL WEATHER SERVICE IN TIYAN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
GUAM...
ROTA...
* UNTIL 730 AM CHST.
* AT 547 AM CHST, AN NWS EMPLOYEE REPORTED HEAVY RAIN ACROSS THE
WARNED AREA WITH OVER A FOOT OF WATER COVERING SOME ROADWAYS.
BETWEEN 4 AND 10 INCHES OF RAIN HAVE FALLEN OVER THE LAST 24
HOURS. THE EXPECTED RAINFALL RATE IS 1 TO 2 INCHES IN 1 HOUR.
ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE IN THE
WARNED AREA. FLASH FLOODING IS ALREADY OCCURRING.
HAZARD...FLASH FLOODING CAUSED BY HEAVY RAIN.
SOURCE...NWS EMPLOYEE REPORTED.
IMPACT...FLASH FLOODING OF SMALL CREEKS AND STREAMS, URBAN
AREAS, AND STREETS AS WELL AS OTHER POOR DRAINAGE AND
LOW-LYING AREAS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH 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, UMATAC, SINAPALO AND SONGSONG.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
LAT...LON 1416 14512 1419 14515 1423 14524 1422 14530
1420 14531 1419 14531 1414 14530 1414 14529
1413 14525 1410 14523 1409 14522 1408 14517
1409 14516 1410 14515 1409 14513 1409 14511
1411 14510 1413 14510 1415 14514 1346 14460
1348 14462 1350 14475 1352 14476 1354 14478
1366 14483 1368 14485 1368 14487 1363 14492
1362 14497 1361 14497 1359 14498 1351 14494
1341 14480 1326 14478 1322 14474 1322 14469
1321 14465 1321 14463 1324 14462 1327 14464
1334 14461 1337 14461 1340 14463 1344 14460
1325 14468 1338 14465
FLASH FLOOD...OBSERVED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
WILLIAMS
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