559
WHMY50 PGUM 190420
SMWGUM
PMZ151-152-190500-
/O.NEW.PGUM.MA.W.0021.260819T0420Z-260819T0500Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE TIYAN GU
220 PM CHST WED AUG 19 2026
THE NATIONAL WEATHER SERVICE IN TIYAN HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
GUAM COASTAL WATERS...
ROTA COASTAL WATERS...
* UNTIL 300 PM CHST.
* AT 220 PM CHST, SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
WATERSPOUTS WERE LOCATED ALONG A LINE FROM 27 NM EAST OF IPAN BUOY
TO 19 NM NORTHEAST OF RITIDIAN BUOY, MOVING WEST AT 40 KNOTS.
HAZARD...WATERSPOUTS AND WIND GUSTS TO 40 KNOTS.
SOURCE...RADAR INDICATED.
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY
HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED IN BRIEFLY
HIGHER WINDS AND SUDDENLY HIGHER WAVES.
* LOCATIONS IMPACTED INCLUDE...
IPAN BUOY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.
BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY UNTIL THESE STORMS PASS.
WIND GUSTS 34 KNOTS OR GREATER, HIGH WAVES, DANGEROUS LIGHTNING, AND
HEAVY RAIN ARE POSSIBLE WITH THESE STORMS.
LAT...LON 1401 14533 1408 14594 1405 14594 1363 14556
1327 14501 1309 14451 1327 14466 1325 14472
1324 14472 1328 14476 1330 14477 1334 14476
1334 14475 1335 14477 1339 14477 1352 14492
1359 14495 1360 14492 1383 14498
TIME...MOT...LOC 0419Z 74DEG 41KT 1320 14522 1351 14516 1381 14510
WATERSPOUT...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...34 KTS
CO
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