330
FZPQ50 PGUM 220717
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
517 PM CHST SUN DEC 22 2024
SYNOPSIS
LONG-PERIOD NORTH SWELL ARRIVED EARLY THIS MORNING,
PRIMARILY CREATING HAZARDOUS SURF AND DANGEROUS RIP CURRENTS ALONG
NORTH AND WEST FACING REEFS, ALTHOUGH REFRACTED WAVES CONTRIBUTE TO
HIGH RIP RISK ALONG EAST FACING REEFS AS WELL. NORTH SWELL SLOWLY
SUBSIDES TONIGHT AND MONDAY, ALLOWING FOR SURF AND RIP RISK TO FALL
BELOW HAZARDOUS LEVELS BY MONDAY AFTERNOON.
GUZ001-MPZ001>003-222200-
GUAM-ROTA-TINIAN-SAIPAN-
517 PM CHST SUN DEC 22 2024
...HIGH SURF ADVISORY IN EFFECT ALONG WEST AND NORTH FACING REEFS
UNTIL 4 PM CHST MONDAY ...
..HIGH RISK OF RIP CURRENTS ALONG WEST
NORTH AND EAST FACING
REEFS THROUGH MONDAY AFTERNOON...
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM SUNDAY
THROUGH 600 AM TUESDAY
TONIGHT AND MONDAY (6 PM TO 6 PM MONDAY)
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............6 TO 9 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............6 TO 9 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH 6 TO 7 FEET.
PRIMARY PERIOD...............11 TO 12 SECONDS.
SECONDARY SWELL..............EAST 5 TO 6 FEET.
SECONDARY PERIOD.............9 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY..........84 DEGREES.
COASTAL WINDS............EAST AT 10 TO 15 MPH.
MONDAY NIGHT (6 PM TO 6 AM TUESDAY)
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............6 TO 8 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................EAST AT AROUND 5 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTH AT 4 TO 5 FEET.
SECONDARY PERIOD.............11 SECONDS.
COASTAL WINDS............EAST AT 10 TO 15 MPH.
OUTLOOK
SURF ALONG WEST, NORTH, AND EAST REEFS DECREASE ANOTHER 1
TO 2 FEET THROUGH TUESDAY. STRONG STORMS CONTINUE TO PUSH EAST OFF
THE COAST OF JAPAN, GENERATING NORTH SWELL TO IMPACT THE REGION LATER
THIS WEEK, LIKELY INCREASING SURF ALONG WEST AND NORTH REEFS AGAIN.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
LOW TIDE 1.0 FEET AT 8:06 PM SUNDAY
HIGH TIDE 1.4 FEET AT 12:24 AM MONDAY
LOW TIDE 0.4 FEET AT 6:57 AM MONDAY
HIGH TIDE 2.0 FEET AT 2:11 PM MONDAY
LOW TIDE 0.8 FEET AT 9:03 PM MONDAY
HIGH TIDE 1.3 FEET AT 2:12 AM TUESDAY
AT ROTA ISLAND...
LOW TIDE 0.9 FEET AT 8:00 PM SUNDAY
HIGH TIDE 1.3 FEET AT 12:21 AM MONDAY
LOW TIDE 0.4 FEET AT 6:51 AM MONDAY
HIGH TIDE 1.9 FEET AT 2:08 PM MONDAY
LOW TIDE 0.7 FEET AT 8:57 PM MONDAY
HIGH TIDE 1.2 FEET AT 2:09 AM TUESDAY
AT TINIAN ISLAND...
LOW TIDE 0.9 FEET AT 7:57 PM SUNDAY
HIGH TIDE 1.1 FEET AT 11:56 PM SUNDAY
LOW TIDE 0.4 FEET AT 6:31 AM MONDAY
HIGH TIDE 1.6 FEET AT 1:48 PM MONDAY
LOW TIDE 0.7 FEET AT 8:49 PM MONDAY
HIGH TIDE 1.0 FEET AT 1:39 AM TUESDAY
AT TANAPAG HARBOR, SAIPAN...
LOW TIDE 1.2 FEET AT 8:44 PM SUNDAY
HIGH TIDE 1.4 FEET AT 12:43 AM MONDAY
LOW TIDE 0.7 FEET AT 7:04 AM MONDAY
HIGH TIDE 2.0 FEET AT 2:23 PM MONDAY
LOW TIDE 0.9 FEET AT 9:35 PM MONDAY
HIGH TIDE 1.3 FEET AT 2:32 AM TUESDAY
* 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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