331
FZPQ50 PGUM 021933
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
533 AM CHST THU SEP 3 2026
DISCUSSION
HAZARDOUS SURF AND A HIGH RISK OF RIP CURRENTS IS EXPECTED ALONG
WEST-FACING REEFS THROUGH AT LEAST FRIDAY. A MODERATE RISK OF RIP
CURRENTS WILL CONTINUE ALONG NORTH AND SOUTH-FACING REEFS FOR THE
NEXT COUPLE OF DAYS. A HIGH RISK OF RIP CURRENT MAY SPREAD TO SOUTH-
FACING REEFS AS EARLY AS LATE TONIGHT. THERE WILL BE A MODERATE RISK
OF LIGHTNING THROUGH AT LEAST TONIGHT.
GUZ001-MPZ001>003-031045-
GUAM-ROTA-TINIAN-SAIPAN-
533 AM CHST THU SEP 3 2026
...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST FRIDAY ALONG WEST
FACING REEFS...
...HIGH RISK OF RIP CURRENTS THROUGH FRIDAY AFTERNOON ALONG WEST
FACING REEFS...
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM THURSDAY
THROUGH 600 PM FRIDAY
TODAY
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............7 TO 9 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 5 TO 7 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............8 SECONDS.
WATER TEMPERATURE
PAGO BAY BUOY..........85 DEGREES.
MAX HEAT INDEX.........AROUND 101.
WINDS...............SOUTHWEST AT 15 TO 25 MPH.
TONIGHT
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............6 TO 8 FEET.
EAST FACING REEFS............2 TO 3 FEET.
SOUTH FACING REEFS............6 TO 8 FEET.
WEST FACING REEFS............8 TO 10 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 6 TO 8 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............8 SECONDS.
WINDS...............SOUTHWEST AT 15 TO 25 MPH.
FRIDAY
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............6 TO 8 FEET.
EAST FACING REEFS............2 TO 3 FEET.
SOUTH FACING REEFS............7 TO 8 FEET.
WEST FACING REEFS.............8 TO 10 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 5 TO 8 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............8 SECONDS.
MAX HEAT INDEX.........AROUND 101.
WINDS...............SOUTHWEST AT 15 TO 20 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
LOW TIDE 0.2 FEET AT 5:43 AM THURSDAY
HIGH TIDE 2.1 FEET AT 12:39 PM THURSDAY
LOW TIDE 1.6 FEET AT 5:44 PM THURSDAY
HIGH TIDE 2.4 FEET AT 11:09 PM THURSDAY
LOW TIDE 0.1 FEET AT 6:44 AM FRIDAY
HIGH TIDE 2.1 FEET AT 2:20 PM FRIDAY
LOW TIDE 1.8 FEET AT 6:52 PM FRIDAY
AT ROTA ISLAND...
LOW TIDE 0.2 FEET AT 5:37 AM THURSDAY
HIGH TIDE 2.0 FEET AT 12:36 PM THURSDAY
LOW TIDE 1.5 FEET AT 5:38 PM THURSDAY
HIGH TIDE 2.3 FEET AT 11:06 PM THURSDAY
LOW TIDE 0.1 FEET AT 6:38 AM FRIDAY
HIGH TIDE 2.0 FEET AT 2:17 PM FRIDAY
LOW TIDE 1.7 FEET AT 6:46 PM FRIDAY
AT TINIAN ISLAND...
LOW TIDE 0.1 FEET AT 5:20 AM THURSDAY
HIGH TIDE 1.6 FEET AT 12:37 PM THURSDAY
LOW TIDE 0.5 FEET AT 5:21 PM THURSDAY
HIGH TIDE 1.8 FEET AT 11:07 PM THURSDAY
LOW TIDE 0.0 FEET AT 6:21 AM FRIDAY
HIGH TIDE 1.6 FEET AT 2:18 PM FRIDAY
LOW TIDE 0.6 FEET AT 6:29 PM FRIDAY
AT TANAPAG HARBOR, SAIPAN...
LOW TIDE 0.1 FEET AT 5:58 AM THURSDAY
HIGH TIDE 1.8 FEET AT 1:05 PM THURSDAY
LOW TIDE 1.4 FEET AT 5:47 PM THURSDAY
HIGH TIDE 2.1 FEET AT 11:16 PM THURSDAY
LOW TIDE 0.0 FEET AT 6:59 AM FRIDAY
HIGH TIDE 1.8 FEET AT 2:41 PM FRIDAY
LOW TIDE 1.6 FEET AT 6:53 PM 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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