155
FZPQ50 PGUM 310620
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
420 PM CHST MON MAR 31 2025
SYNOPSIS
A HIGH RISK OF RIP CURRENTS WILL CONTINUE FOR EAST FACING REEFS
TONIGHT AND TUESDAY, WHILE A MODERATE RISK OF RIP CURRENTS CONTINUES FOR
NORTH FACING REEFS THROUGH AT LEAST TUESDAY NIGHT.
GUZ001-MPZ001>003-312130-
GUAM-ROTA-TINIAN-SAIPAN-
420 PM CHST MON MAR 31 2025
...HIGH RISK OF RIP CURRENTS THROUGH TUESDAY AFTERNOON ALONG
EAST FACING REEFS...
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM MONDAY
THROUGH 600 AM WEDNESDAY
TONIGHT AND TUESDAY
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............7 TO 9 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............1 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 4 TO 6 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 3 FEET.
SECONDARY PERIOD.............12 TO 13 SECONDS.
MAXIMUM AFTERNOON HEAT INDEX.........AROUND 97.
WATER TEMPERATURE BUOY.......... 83 DEGREES.
COASTAL WINDS...............EAST AT 15 TO 20 MPH.
TUESDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 6 FEET.
EAST FACING REEFS............6 TO 8 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............AROUND 1 FOOT.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 3 TO 5 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 3 FEET.
SECONDARY PERIOD.............11 SECONDS.
COASTAL WINDS...............EAST AT 10 TO 20 MPH.
OUTLOOK
SURF WILL REMAIN STEADY THROUGH MIDWEEK, BEFORE ANOTHER PULSE OF
LONG-PERIOD NORTHEASTERLY SWELL ARRIVES LATE IN THE WEEK. THIS WILL INCREASE
SURF ALONG NORTH AND EAST FACING REEFS, WHICH MAY REINTRODUCE A HIGH RISK OF
RIP CURRENTS TO EAST FACING REEFS BY THE WEEKEND.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.5 FEET AT 9:40 PM MONDAY
LOW TIDE 1.0 FEET AT 3:29 AM TUESDAY
HIGH TIDE 2.5 FEET AT 8:56 AM TUESDAY
LOW TIDE -0.3 FEET AT 3:57 PM TUESDAY
HIGH TIDE 2.4 FEET AT 10:46 PM TUESDAY
LOW TIDE 1.3 FEET AT 4:19 AM WEDNESDAY
AT ROTA ISLAND...
HIGH TIDE 2.4 FEET AT 9:37 PM MONDAY
LOW TIDE 1.0 FEET AT 3:23 AM TUESDAY
HIGH TIDE 2.4 FEET AT 8:53 AM TUESDAY
LOW TIDE -0.3 FEET AT 3:51 PM TUESDAY
HIGH TIDE 2.3 FEET AT 10:43 PM TUESDAY
LOW TIDE 1.2 FEET AT 4:13 AM WEDNESDAY
AT TINIAN ISLAND...
HIGH TIDE 1.8 FEET AT 9:23 PM MONDAY
LOW TIDE 1.0 FEET AT 2:53 AM TUESDAY
HIGH TIDE 1.9 FEET AT 8:10 AM TUESDAY
LOW TIDE -0.1 FEET AT 3:36 PM TUESDAY
HIGH TIDE 1.7 FEET AT 10:43 PM TUESDAY
LOW TIDE 1.2 FEET AT 3:45 AM WEDNESDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.3 FEET AT 10:00 PM MONDAY
LOW TIDE 1.1 FEET AT 3:33 AM TUESDAY
HIGH TIDE 2.2 FEET AT 8:51 AM TUESDAY
LOW TIDE -0.3 FEET AT 3:57 PM TUESDAY
HIGH TIDE 2.2 FEET AT 11:15 PM TUESDAY
LOW TIDE 1.4 FEET AT 4:24 AM WEDNESDAY
* 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. IF CAUGHT IN A
RIP CURRENT, SWIM PARALLEL TO THE BEACH RATHER THAN AGAINST THE
CURRENT.
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