205
FZPQ50 PGUM 100806
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
606 PM CHST FRI JUL 10 2026
DISCUSSION
THE ELEVATED WESTERLY SWELL FROM DISTANT TYPHOON BAVI (09W) WILL
CONTINUE HAZARDOUS SURF AND DANGEROUS RIP CURRENTS THROUGH TONIGHT.
THE RIP CURRENT RISK IS EXPECTED TO DROP TO MODERATE BY SATURDAY
MORNING. THERE IS A MODERATE RISK OF LIGHTNING THROUGH THE WEEKEND.
GUZ001-MPZ001>003-102315-
GUAM-ROTA-TINIAN-SAIPAN-
606 PM CHST FRI JUL 10 2026
...HIGH SURF ADVISORY IN EFFECT UNTIL 4 AM CHST SATURDAY ALONG NORTH,
SOUTH, AND WEST FACING REEFS...
...HIGH RISK OF RIP CURRENTS UNTIL 4 AM CHST SATURDAY ALONG NORTH,
SOUTH, AND WEST FACING REEFS...
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM FRIDAY
THROUGH 600 AM SUNDAY
TONIGHT
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............7 TO 9 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............7 TO 9 FEET.
WEST FACING REEFS............8 TO 11 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 7 TO 9 FEET.
PRIMARY PERIOD...............11 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY.......... 83 DEGREES.
WINDS...............NORTHEAST AT 10 TO 15 MPH.
SATURDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............6 TO 8 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............5 TO 8 FEET.
WEST FACING REEFS............6 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 5 TO 7 FEET.
PRIMARY PERIOD...............10 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 3 FEET.
SECONDARY PERIOD.............9 SECONDS.
MAX HEAT INDEX.........AROUND 101.
WINDS...............NORTHEAST AT 15 TO 20 MPH.
SATURDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............5 TO 7 FEET.
WEST FACING REEFS............5 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 4 TO 6 FEET.
PRIMARY PERIOD...............10 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 4 FEET.
SECONDARY PERIOD.............10 SECONDS.
WINDS...............EAST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.2 FEET AT 5:12 PM FRIDAY
LOW TIDE 1.8 FEET AT 9:32 PM FRIDAY
HIGH TIDE 2.7 FEET AT 3:05 AM SATURDAY
LOW TIDE -0.1 FEET AT 10:47 AM SATURDAY
HIGH TIDE 2.4 FEET AT 6:25 PM SATURDAY
LOW TIDE 1.9 FEET AT 10:47 PM SATURDAY
HIGH TIDE 2.7 FEET AT 4:00 AM SUNDAY
AT ROTA ISLAND...
HIGH TIDE 2.1 FEET AT 5:09 PM FRIDAY
LOW TIDE 1.7 FEET AT 9:26 PM FRIDAY
HIGH TIDE 2.5 FEET AT 3:02 AM SATURDAY
LOW TIDE -0.1 FEET AT 10:41 AM SATURDAY
HIGH TIDE 2.3 FEET AT 6:22 PM SATURDAY
LOW TIDE 1.8 FEET AT 10:41 PM SATURDAY
HIGH TIDE 2.5 FEET AT 3:57 AM SUNDAY
AT TINIAN ISLAND...
HIGH TIDE 1.6 FEET AT 5:10 PM FRIDAY
LOW TIDE 0.6 FEET AT 9:09 PM FRIDAY
HIGH TIDE 2.0 FEET AT 3:03 AM SATURDAY
LOW TIDE 0.0 FEET AT 10:24 AM SATURDAY
HIGH TIDE 1.8 FEET AT 6:23 PM SATURDAY
LOW TIDE 0.6 FEET AT 10:24 PM SATURDAY
HIGH TIDE 2.0 FEET AT 3:58 AM SUNDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 1.8 FEET AT 5:39 PM FRIDAY
LOW TIDE 1.5 FEET AT 9:20 PM FRIDAY
HIGH TIDE 2.4 FEET AT 2:49 AM SATURDAY
LOW TIDE -0.4 FEET AT 10:53 AM SATURDAY
HIGH TIDE 2.0 FEET AT 6:52 PM SATURDAY
LOW TIDE 1.7 FEET AT 10:30 PM SATURDAY
HIGH TIDE 2.4 FEET AT 3:40 AM SUNDAY
* LOW RISK OF RIP CURRENTS - STRONG CURRENTS CAN STILL OCCUR NEAR
JETTIES AND REEF CHANNELS. ALWAYS HAVE A FLOTATION DEVICE WITH YOU
IN THE WATER.
MODERATE RISK OF RIP CURRENTS - WAVE CONDITIONS SUPPORT STRONGER OR
MORE FREQUENT RIP CURRENTS. ALWAYS HAVE A FLOTATION DEVICE WITH YOU
IN THE WATER.
HIGH RISK OF RIP CURRENTS - LARGE WAVES WILL PRODUCE STRONG RIP
CURRENTS, ESPECIALLY ALONG NARROW REEFS AND BEACHES. RIP CURRENTS
WILL BE LIFE THREATENING. IF CAUGHT IN A RIP CURRENT, SWIM PARALLEL
TO THE BEACH RATHER THAN AGAINST THE CURRENT.
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