881
WHGM70 PGUM 042317
MWWGUM
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
917 AM CHST SUN JUL 5 2026
PMZ151>154-051400-
/O.CON.PGUM.TY.W.4009.000000T0000Z-000000T0000Z/
GUAM COASTAL WATERS-ROTA COASTAL WATERS-TINIAN COASTAL WATERS-
SAIPAN COASTAL WATERS-
917 AM CHST SUN JUL 5 2026
..TYPHOON WARNING REMAINS IN EFFECT
* WHAT...A TYPHOON WARNING REMAINS IN EFFECT THROUGH AT LEAST
TUESDAY NIGHT.
* WHERE...MARIANAS COASTAL WATERS.
* WHEN...DAMAGING WINDS EXPECTED FROM LATE THIS AFTERNOON THROUGH
EARLY TUESDAY MORNING. DESTRUCTIVE TYPHOON FORCE WINDS EXPECTED
EARLY MONDAY MORNING THROUGH EARLY MONDAY AFTERNOON WITH THE
PASSAGE OF SUPER TYPHOON BAVI.
* IMPACTS...SUSTAINED WINDS OF NEAR 140 KT WITH GUSTS TO 170 KT
NEAR THE CENTER. SEAS OF UP TO 45 FEET NEAR THE STORM CENTER.
* ADDITIONAL DETAILS...TYPHOON CONDITIONS, INCLUDING WINDS OF 64
KNOTS OR MORE, ARE EXPECTED WITHIN THE NEXT 24 HOURS AS SUPER
TYPHOON BAVI (09W) APPROACHES THE REGION. BAVI IS MAINTAINING
STRENGTH AT HIGH-END CATEGORY 4 TO CATEGORY 5. HOWEVER, THERE IS
STILL UNCERTAINTY AS TO WHICH ISLANDS WILL RECEIVE THE STRONGEST
IMPACTS DUE TO IRREGULAR LONGITUDINAL SHIFTS IN MOTION. THE
LATEST MODEL GUIDANCE CONTINUES TO INDICATE A PATH NEAR OR JUST
NORTH OF ROTA, BUT THE FORECAST TRACK WILL CONTINUE TO CHANGE
OVER THE NEXT 24 HOURS. ALL OF THE ISLANDS WILL SEE IMPACTS, BUT
THE ISLANDS CLOSEST TO THE STORM CENTER PASSAGE WILL EXPERIENCE
SIGNIFICANTLY WORSE CONDITIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE FOR THE IMMINENT PASSAGE OF A STRONG TYPHOON MONDAY
MORNING. DAMAGING WINDS ARE EXPECTED LATE THIS AFTERNOON THROUGH
LATE MONDAY NIGHT. SECURE ALL VESSELS. CONDITIONS ARE EXPECTED TO
BE CATASTROPHIC FOR SMALL CRAFT, AND EXTREMELY DANGEROUS FOR ANY
VESSELS OF LARGER SIZE. AS SUPER TYPHOON BAVI APPROACHES, STAY IN
SAFE HARBOR.
BOWSHER
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