099
FZPQ50 PGUM 170712
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
512 PM CHST WED JUN 17 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG
EAST FACING REEFS OF THE MARIANAS THROUGH AT LEAST FRIDAY. A
MODERATE RISK OF RIP CURRENTS WILL DEVELOP ALONG NORTH FACING REEFS BY
TOMORROW DUE TO WRAP AROUND FROM THE EAST SWELL. THERE WILL ALSO BE A
MODERATE RISK OF LIGHTNING THROUGH SATURDAY.
GUZ001-MPZ001>003-172215-
GUAM-ROTA-TINIAN-SAIPAN-
512 PM CHST WED JUN 17 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM WEDNESDAY
THROUGH 600 AM FRIDAY
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 4 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............AROUND 1 FOOT.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 3 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
WATER TEMPERATURE
IPAN BUOY.......... 85 DEGREES.
WINDS...............EAST AT 10 TO 15 MPH.
THURSDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 5 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............AROUND 1 FOOT.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
MAX HEAT INDEX.........AROUND 100.
WINDS...............NORTHEAST AT 10 TO 15 MPH.
THURSDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 5 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............AROUND 1 FOOT.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT 2 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 2.7 FEET AT 10:55 PM WEDNESDAY
LOW TIDE 1.9 FEET AT 4:10 AM THURSDAY
HIGH TIDE 2.7 FEET AT 8:46 AM THURSDAY
LOW TIDE -0.4 FEET AT 4:19 PM THURSDAY
HIGH TIDE 2.7 FEET AT 11:44 PM THURSDAY
LOW TIDE 1.8 FEET AT 5:10 AM FRIDAY
AT ROTA ISLAND...
HIGH TIDE 2.6 FEET AT 10:52 PM WEDNESDAY
LOW TIDE 1.8 FEET AT 4:04 AM THURSDAY
HIGH TIDE 2.5 FEET AT 8:43 AM THURSDAY
LOW TIDE -0.4 FEET AT 4:13 PM THURSDAY
HIGH TIDE 2.5 FEET AT 11:41 PM THURSDAY
LOW TIDE 1.6 FEET AT 5:04 AM FRIDAY
AT TINIAN ISLAND...
HIGH TIDE 2.0 FEET AT 10:53 PM WEDNESDAY
LOW TIDE 0.6 FEET AT 3:47 AM THURSDAY
HIGH TIDE 2.0 FEET AT 8:44 AM THURSDAY
LOW TIDE -0.1 FEET AT 3:56 PM THURSDAY
HIGH TIDE 2.0 FEET AT 11:42 PM THURSDAY
LOW TIDE 0.6 FEET AT 4:47 AM FRIDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.5 FEET AT 11:26 PM WEDNESDAY
LOW TIDE 1.7 FEET AT 4:33 AM THURSDAY
HIGH TIDE 2.2 FEET AT 8:40 AM THURSDAY
LOW TIDE -0.6 FEET AT 4:24 PM THURSDAY
HIGH TIDE 2.5 FEET AT 12:10 AM FRIDAY
LOW TIDE 1.6 FEET AT 5:41 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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