646
FZPQ50 PGUM 011834
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
434 AM CHST THU JUL 2 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG EAST
FACING REEFS OF THE MARIANAS THROUGH SATURDAY, THEN SURF IS EXPECTED
TO INCREASE SHARPLY AND PERSIST THROUGH AT LEAST MONDAY AS TROPICAL
STORM 09W PASSES THROUGH THE MARIANAS. THERE WILL BE A MODERATE RISK
OF LIGHTNING SATURDAY THEN A HIGH LIGHTNING RISK SUNDAY AND MONDAY.
GUZ001-MPZ001>003-020945-
GUAM-ROTA-TINIAN-SAIPAN-
434 AM CHST THU JUL 2 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM THURSDAY
THROUGH 600 PM FRIDAY
TODAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 5 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............AROUND 1 FOOT.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 2 TO 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY..........84 DEGREES.
MAX HEAT INDEX.........AROUND 100.
WINDS...............NORTHEAST AT AROUND 10 MPH.
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 4 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............AROUND 1 FOOT.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 2 TO 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
WINDS...............NORTHEAST AT 10 TO 15 MPH.
FRIDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 4 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............AROUND 1 FOOT.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 2 TO 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
MAX HEAT INDEX.........AROUND 101.
WINDS...............NORTHEAST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.4 FEET AT 7:50 AM THURSDAY
LOW TIDE -0.1 FEET AT 3:17 PM THURSDAY
HIGH TIDE 2.5 FEET AT 10:38 PM THURSDAY
LOW TIDE 1.8 FEET AT 3:58 AM FRIDAY
HIGH TIDE 2.4 FEET AT 8:30 AM FRIDAY
LOW TIDE 0.0 FEET AT 3:52 PM FRIDAY
HIGH TIDE 2.5 FEET AT 11:08 PM FRIDAY
AT ROTA ISLAND...
HIGH TIDE 2.3 FEET AT 7:47 AM THURSDAY
LOW TIDE -0.1 FEET AT 3:11 PM THURSDAY
HIGH TIDE 2.3 FEET AT 10:35 PM THURSDAY
LOW TIDE 1.7 FEET AT 3:52 AM FRIDAY
HIGH TIDE 2.3 FEET AT 8:27 AM FRIDAY
LOW TIDE 0.0 FEET AT 3:46 PM FRIDAY
HIGH TIDE 2.4 FEET AT 11:05 PM FRIDAY
AT TINIAN ISLAND...
HIGH TIDE 1.8 FEET AT 7:48 AM THURSDAY
LOW TIDE 0.0 FEET AT 2:54 PM THURSDAY
HIGH TIDE 1.8 FEET AT 10:36 PM THURSDAY
LOW TIDE 0.6 FEET AT 3:35 AM FRIDAY
HIGH TIDE 1.8 FEET AT 8:28 AM FRIDAY
LOW TIDE 0.0 FEET AT 3:29 PM FRIDAY
HIGH TIDE 1.9 FEET AT 11:06 PM FRIDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.0 FEET AT 7:32 AM THURSDAY
LOW TIDE -0.3 FEET AT 3:26 PM THURSDAY
HIGH TIDE 2.2 FEET AT 11:17 PM THURSDAY
LOW TIDE 1.7 FEET AT 4:17 AM FRIDAY
HIGH TIDE 1.9 FEET AT 8:16 AM FRIDAY
LOW TIDE -0.2 FEET AT 3:59 PM FRIDAY
HIGH TIDE 2.2 FEET AT 11:45 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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