797
FZPQ50 PGUM 220600
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
400 PM CHST THU OCT 22 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS THROUGH
THE WEEKEND, MAINLY ALONG NORTH AND EAST FACING REEFS. THERE WILL
ALSO BE MODERATE RISK OF LIGHTNING THROUGH AT LEAST FRIDAY NIGHT,
MAINLY FOR TINIAN AND SAIPAN.
GUZ001-MPZ001>003-222045-
GUAM-ROTA-TINIAN-SAIPAN-
400 PM CHST THU OCT 22 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM THURSDAY
THROUGH 600 AM SATURDAY
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............6 TO 8 FEET.
EAST FACING REEFS............6 TO 8 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............3 TO 5 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTHEAST AT 5 TO 7 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............WEST AT AROUND 3 FEET.
SECONDARY PERIOD.............12 SECONDS.
WATER TEMPERATURE
PAGO BUOY.......... 86 DEGREES.
WINDS...............NORTHEAST AT 10 TO 20 MPH.
FRIDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............6 TO 8 FEET.
EAST FACING REEFS............6 TO 8 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............3 TO 5 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTHEAST AT 4 TO 7 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............WEST AT AROUND 3 FEET.
SECONDARY PERIOD.............12 SECONDS.
MAX HEAT INDEX.........AROUND 99.
WINDS...............NORTHEAST AT 10 TO 15 MPH.
FRIDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............6 TO 8 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............4 TO 6 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTHEAST AT 4 TO 6 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............WEST AT AROUND 4 FEET.
SECONDARY PERIOD.............13 SECONDS.
WINDS...............EAST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.2 FEET AT 5:19 PM THURSDAY
LOW TIDE 0.8 FEET AT 11:31 PM THURSDAY
HIGH TIDE 1.9 FEET AT 5:08 AM FRIDAY
LOW TIDE 0.5 FEET AT 11:12 AM FRIDAY
HIGH TIDE 2.3 FEET AT 5:41 PM FRIDAY
LOW TIDE 0.5 FEET AT 12:03 AM SATURDAY
HIGH TIDE 2.1 FEET AT 6:05 AM SATURDAY
AT ROTA ISLAND...
HIGH TIDE 2.1 FEET AT 5:16 PM THURSDAY
LOW TIDE 0.8 FEET AT 11:25 PM THURSDAY
HIGH TIDE 1.8 FEET AT 5:05 AM FRIDAY
LOW TIDE 0.5 FEET AT 11:06 AM FRIDAY
HIGH TIDE 2.1 FEET AT 5:38 PM FRIDAY
LOW TIDE 0.5 FEET AT 11:57 PM FRIDAY
HIGH TIDE 1.9 FEET AT 6:02 AM SATURDAY
AT TINIAN ISLAND...
HIGH TIDE 1.6 FEET AT 5:17 PM THURSDAY
LOW TIDE 0.3 FEET AT 11:08 PM THURSDAY
HIGH TIDE 1.4 FEET AT 5:06 AM FRIDAY
LOW TIDE 0.2 FEET AT 10:49 AM FRIDAY
HIGH TIDE 1.7 FEET AT 5:39 PM FRIDAY
LOW TIDE 0.2 FEET AT 11:40 PM FRIDAY
HIGH TIDE 1.5 FEET AT 6:03 AM SATURDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.1 FEET AT 5:28 PM THURSDAY
LOW TIDE 0.9 FEET AT 11:26 PM THURSDAY
HIGH TIDE 1.7 FEET AT 5:16 AM FRIDAY
LOW TIDE 0.5 FEET AT 11:11 AM FRIDAY
HIGH TIDE 2.1 FEET AT 5:49 PM FRIDAY
LOW TIDE 0.6 FEET AT 11:59 PM FRIDAY
HIGH TIDE 1.9 FEET AT 6:14 AM SATURDAY
* 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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