264
FZPQ50 PGUM 120600
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
400 PM CHST WED AUG 12 2026
DISCUSSION
THERE WILL BE A HIGH RISK OF RIP CURRENTS ALONG WITH
HAZARDOUS SURF ALONG WEST FACING REEFS THROUGH AT LEAST FRIDAY
MORNING. LATEST GUIDANCE SHOWS SURF FALLING A BIT SLOWER THAN
PREVIOUSLY EXPECTED, SO THE HIGH SURF ADVISORY AND HIGH RIP CURRENT
STATEMENT WERE EXTENDED BY 12 HOURS. THIS MAY NEED TO BE EXTENDED
FURTHER IF THE SURF REMAINS ELEVATED.
GUZ001-MPZ001>003-122100-
GUAM-ROTA-TINIAN-SAIPAN-
400 PM CHST WED AUG 12 2026
...HIGH SURF ADVISORY IN EFFECT UNTIL 4 AM CHST FRIDAY ALONG WEST
FACING REEFS...
...HIGH RISK OF RIP CURRENTS THROUGH LATE THURSDAY NIGHT ALONG WEST
FACING REEFS...
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM WEDNESDAY
THROUGH 600 AM FRIDAY
TONIGHT
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............4 TO 5 FEET.
WEST FACING REEFS............8 TO 11 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 6 TO 9 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............11 SECONDS.
WATER TEMPERATURE
SATELLITE ESTIMATE..........85 DEGREES.
WINDS...............SOUTHWEST AT 10 TO 15 MPH.
THURSDAY
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............4 TO 5 FEET.
WEST FACING REEFS............9 TO 11 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 7 TO 9 FEET.
PRIMARY PERIOD...............10 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............11 SECONDS.
MAX HEAT INDEX.........AROUND 101.
WINDS...............SOUTHWEST AT 10 TO 15 MPH.
THURSDAY NIGHT
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............4 TO 6 FEET.
WEST FACING REEFS............8 TO 10 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 6 TO 8 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............11 SECONDS.
WINDS...............SOUTHWEST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.6 FEET AT 8:25 PM WEDNESDAY
LOW TIDE 1.5 FEET AT 1:46 AM THURSDAY
HIGH TIDE 2.8 FEET AT 6:58 AM THURSDAY
LOW TIDE -0.3 FEET AT 2:09 PM THURSDAY
HIGH TIDE 2.6 FEET AT 8:58 PM THURSDAY
LOW TIDE 1.3 FEET AT 2:34 AM FRIDAY
AT ROTA ISLAND...
HIGH TIDE 2.4 FEET AT 8:22 PM WEDNESDAY
LOW TIDE 1.4 FEET AT 1:40 AM THURSDAY
HIGH TIDE 2.6 FEET AT 6:55 AM THURSDAY
LOW TIDE -0.3 FEET AT 2:03 PM THURSDAY
HIGH TIDE 2.5 FEET AT 8:55 PM THURSDAY
LOW TIDE 1.3 FEET AT 2:28 AM FRIDAY
AT TINIAN ISLAND...
HIGH TIDE 1.9 FEET AT 8:23 PM WEDNESDAY
LOW TIDE 0.5 FEET AT 1:23 AM THURSDAY
HIGH TIDE 2.0 FEET AT 6:56 AM THURSDAY
LOW TIDE -0.1 FEET AT 1:46 PM THURSDAY
HIGH TIDE 1.9 FEET AT 8:56 PM THURSDAY
LOW TIDE 0.4 FEET AT 2:11 AM FRIDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.3 FEET AT 8:43 PM WEDNESDAY
LOW TIDE 1.4 FEET AT 1:53 AM THURSDAY
HIGH TIDE 2.3 FEET AT 7:00 AM THURSDAY
LOW TIDE -0.4 FEET AT 2:17 PM THURSDAY
HIGH TIDE 2.3 FEET AT 9:16 PM THURSDAY
LOW TIDE 1.2 FEET AT 2:45 AM FRIDAY
* 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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