471
FZPQ50 PGUM 210603
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
403 PM CHST FRI FEB 21 2025
SYNOPSIS
THE NORTH SWELL HAS COME IN A BIT LARGER AND A HIGH
SURF AND HIGH RISK OF RIP CURRENTS CONTINUES THROUGH SATURDAY NIGHT.
A MODERATE RISK OF RIP CURRENTS IS ALSO EXPECTED FOR WEST AND EAST
FACING REEFS. A SLIGHT TO MODERATE RISK OF LIGHTING IS POSSIBLE FOR
GUAM AND ROTA OVER THE WEEKEND.
GUZ001-MPZ001>003-212115-
GUAM-ROTA-TINIAN-SAIPAN-
403 PM CHST FRI FEB 21 2025
...HIGH SURF ADVISORY IN EFFECT FOR NORTH FACING REEFS UNTIL 5 AM
CHST MONDAY...
...HIGH RISK OF RIP CURRENTS ALONG NORTH FACING REEFS THROUGH LATE
SUNDAY NIGHT...
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM FRIDAY
THROUGH 600 AM SUNDAY
TONIGHT
RIP CURRENT RISK.....HIGH. POUNDING SURF WILL PRODUCE LIFE
THREATENING RIP CURRENTS AT REEFS AND
BEACHES.
SURF HEIGHT
NORTH FACING REEFS............8 TO 10 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............6 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT 6 TO 7 FEET.
PRIMARY PERIOD...............11 SECONDS.
SECONDARY SWELL..............EAST AT 4 TO 5 FEET.
SECONDARY PERIOD.............7 SECONDS.
WATER TEMPERATURE
RITIDIAN BUOY................83 DEGREES.
COASTAL WINDS......................NORTHEAST AT 15 TO 20 MPH.
SATURDAY AND SATURDAY NIGHT
RIP CURRENT RISK.....HIGH.
SURF HEIGHT
NORTH FACING REEFS............7 TO 9 FEET.
EAST FACING REEFS............6 TO 8 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............5 TO 7 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT 5 TO 6 FEET.
PRIMARY PERIOD...............11 SECONDS.
SECONDARY SWELL..............EAST AT 5 TO 6 FEET.
SECONDARY PERIOD.............7 SECONDS.
MAXIMUM AFTERNOON HEAT INDEX.......AROUND 98.
COASTAL WINDS..............BREEZY. NORTHEAST AT 15 TO 25 MPH.
OUTLOOK
AS THE NORTHERLY SWELL SUBSIDES ON SUNDAY, THE EAST-
NORTHEAST TRADE SWELL IS EXPECTED TO INCREASE. THE RIP RISK IS
EXPECTED TO BECOME HIGH FOR EAST FACING REEFS. IN ADDITION, THE
SURF AND RIP RISK COULD STAY HIGH FOR NORTH FACING REEFS.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
LOW TIDE 0.1 FEET AT 8:25 PM FRIDAY
HIGH TIDE 1.6 FEET AT 4:53 AM SATURDAY
LOW TIDE 1.5 FEET AT 8:25 AM SATURDAY
HIGH TIDE 1.8 FEET AT 1:16 PM SATURDAY
LOW TIDE -0.1 FEET AT 9:31 PM SATURDAY
HIGH TIDE 1.8 FEET AT 5:55 AM SUNDAY
AT ROTA ISLAND...
LOW TIDE 0.1 FEET AT 8:19 PM FRIDAY
HIGH TIDE 1.5 FEET AT 4:50 AM SATURDAY
LOW TIDE 1.4 FEET AT 8:19 AM SATURDAY
HIGH TIDE 1.7 FEET AT 1:13 PM SATURDAY
LOW TIDE -0.1 FEET AT 9:25 PM SATURDAY
HIGH TIDE 1.7 FEET AT 5:52 AM SUNDAY
AT TINIAN ISLAND...
LOW TIDE 0.2 FEET AT 8:24 PM FRIDAY
HIGH TIDE 1.4 FEET AT 4:53 AM SATURDAY
LOW TIDE 1.4 FEET AT 7:16 AM SATURDAY
HIGH TIDE 1.7 FEET AT 12:39 PM SATURDAY
LOW TIDE 0.1 FEET AT 9:20 PM SATURDAY
HIGH TIDE 1.5 FEET AT 5:51 AM SUNDAY
AT TANAPAG HARBOR, SAIPAN...
LOW TIDE 0.3 FEET AT 8:49 PM FRIDAY
HIGH TIDE 1.7 FEET AT 5:39 AM SATURDAY
LOW TIDE 1.7 FEET AT 8:40 AM SATURDAY
HIGH TIDE 1.9 FEET AT 1:00 PM SATURDAY
LOW TIDE 0.1 FEET AT 9:50 PM SATURDAY
HIGH TIDE 1.9 FEET AT 6:15 AM SUNDAY
* 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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