548
FZPQ50 PGUM 140605
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
405 PM CHST FRI AUG 14 2026
DISCUSSION
SURF CONTINUES TO SUBSIDE ALONG WEST FACING REEFS.
THEREFORE, THE HIGH SURF ADVISORY AND HIGH RISK OF RIP CURRENTS WERE
ALLOWED TO EXPIRE AT 4 PM. A MODERATE RISK OF RIP CURRENTS WILL
CONTINUE FOR THE NEXT FEW DAYS ALONG SOUTH, WEST AND NORTH FACING
REEFS.
GUZ001-MPZ001>003-142100-
GUAM-ROTA-TINIAN-SAIPAN-
405 PM CHST FRI AUG 14 2026
..HIGH SURF ADVISORY WILL EXPIRE AT 4 PM CHST THIS AFTERNOON
...HIGH RISK OF RIP CURRENTS WILL EXPIRE AT 4 PM CHST THIS
AFTERNOON...
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM FRIDAY
THROUGH 600 AM SUNDAY
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............6 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 4 TO 7 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............11 SECONDS.
WATER TEMPERATURE
SATELLITE ESTIMATE..........86 DEGREES.
WINDS...............WEST AT 10 TO 15 MPH.
SATURDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 6 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............5 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 4 TO 6 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
MAX HEAT INDEX.........AROUND 102.
WINDS...............SOUTHWEST AT 10 TO 15 MPH.
SATURDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 6 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............5 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 4 TO 6 FEET.
PRIMARY PERIOD...............8 SECONDS.
WINDS...............SOUTHWEST AT 10 TO 20 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.6 FEET AT 9:28 PM FRIDAY
LOW TIDE 1.1 FEET AT 3:22 AM SATURDAY
HIGH TIDE 2.6 FEET AT 8:46 AM SATURDAY
LOW TIDE 0.3 FEET AT 3:34 PM SATURDAY
HIGH TIDE 2.6 FEET AT 9:57 PM SATURDAY
LOW TIDE 1.0 FEET AT 4:08 AM SUNDAY
AT ROTA ISLAND...
HIGH TIDE 2.5 FEET AT 9:25 PM FRIDAY
LOW TIDE 1.1 FEET AT 3:16 AM SATURDAY
HIGH TIDE 2.4 FEET AT 8:43 AM SATURDAY
LOW TIDE 0.2 FEET AT 3:28 PM SATURDAY
HIGH TIDE 2.4 FEET AT 9:54 PM SATURDAY
LOW TIDE 0.9 FEET AT 4:02 AM SUNDAY
AT TINIAN ISLAND...
HIGH TIDE 1.9 FEET AT 9:26 PM FRIDAY
LOW TIDE 0.4 FEET AT 2:59 AM SATURDAY
HIGH TIDE 1.9 FEET AT 8:44 AM SATURDAY
LOW TIDE 0.1 FEET AT 3:11 PM SATURDAY
HIGH TIDE 1.9 FEET AT 9:55 PM SATURDAY
LOW TIDE 0.3 FEET AT 3:45 AM SUNDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.2 FEET AT 9:48 PM FRIDAY
LOW TIDE 1.0 FEET AT 3:33 AM SATURDAY
HIGH TIDE 2.1 FEET AT 8:59 AM SATURDAY
LOW TIDE 0.1 FEET AT 3:42 PM SATURDAY
HIGH TIDE 2.2 FEET AT 10:19 PM SATURDAY
LOW TIDE 0.8 FEET AT 4:21 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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