395
FZPQ50 PGUM 021849
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
449 AM CHST MON AUG 3 2026
DISCUSSION
A HIGH RISK OF RIP CURRENTS, AS WELL AS HAZARDOUS SURF,
IS EXPECTED ALONG NORTH AND EAST FACING REEFS OF THE MARIANAS THROUGH
AT LEAST THE NEXT SEVERAL DAYS. HAZARDOUS SURF AND HIGH RISK OF RIP
CURRENTS IS LIKELY TO DEVELOP ALONG WEST FACING REEFS BEGINNING
TUESDAY AS MONSOONAL SWELLS STRENGTHEN. A MODERATE RISK OF LIGHTNING
IS EXPECTED THROUGH AT LEAST THE MIDWEEK.
GUZ001-MPZ001>003-030800-
GUAM-ROTA-TINIAN-SAIPAN-
449 AM CHST MON AUG 3 2026
...WIND ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 6 AM CHST
WEDNESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4
PM CHST SATURDAY ALONG NORTH AND EAST FACING REEFS...
...HIGH RISK OF RIP CURRENTS REMAINS THROUGH SATURDAY AFTERNOON
ALONG NORTH AND EAST FACING REEFS...
..MONSOON SURGE TO BRING WINDY CONDITIONS IN THE NEXT FEW DAYS
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM MONDAY
THROUGH 600 PM TUESDAY
TODAY
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............7 TO 9 FEET.
EAST FACING REEFS............9 TO 12 FEET.
SOUTH FACING REEFS............4 TO 6 FEET.
WEST FACING REEFS............5 TO 7 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTHEAST AT 5 TO 8 FEET.
PRIMARY PERIOD...............14 TO 15 SECONDS.
SECONDARY SWELL..............WEST AT AROUND 5 FEET.
SECONDARY PERIOD.............9 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY..........86 DEGREES.
MAX HEAT INDEX.........AROUND 102.
WINDS...............BREEZY. WEST AT 15 TO 25 MPH. FOR GUAM, WINDY. WEST
WINDS 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 35 MPH.
TONIGHT
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............8 TO 10 FEET.
EAST FACING REEFS............9 TO 12 FEET.
SOUTH FACING REEFS............5 TO 7 FEET.
WEST FACING REEFS............6 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH TO NORTHEAST AT 5 TO 8 FEET.
PRIMARY PERIOD...............14 TO 15 SECONDS.
SECONDARY SWELL..............WEST AT AROUND 6 FEET.
SECONDARY PERIOD.............9 SECONDS.
WINDS...............BREEZY. WEST AT 15 TO 25 MPH. FOR GUAM, WINDY. WEST
WINDS 20 TO 30 MPH WITH OCCASIONAL GUSTS TO 35 MPH.
TUESDAY
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............7 TO 9 FEET.
EAST FACING REEFS............9 TO 12 FEET.
SOUTH FACING REEFS............5 TO 7 FEET.
WEST FACING REEFS............7 TO 9 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 6 TO 7 FEET.
PRIMARY PERIOD...............11 SECONDS.
SECONDARY SWELL..............NORTH AT AROUND 5 FEET.
SECONDARY PERIOD.............14 SECONDS.
MAX HEAT INDEX.........AROUND 102.
WINDS...............WINDY. WEST AT 20 TO 30 MPH WITH GUSTS TO 40 MPH
POSSIBLE.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.3 FEET AT 10:06 AM MONDAY
LOW TIDE 0.6 FEET AT 4:34 PM MONDAY
HIGH TIDE 2.6 FEET AT 11:01 PM MONDAY
LOW TIDE 1.0 FEET AT 5:30 AM TUESDAY
HIGH TIDE 2.2 FEET AT 11:09 AM TUESDAY
LOW TIDE 0.9 FEET AT 5:13 PM TUESDAY
AT ROTA ISLAND...
HIGH TIDE 2.2 FEET AT 10:03 AM MONDAY
LOW TIDE 0.6 FEET AT 4:28 PM MONDAY
HIGH TIDE 2.4 FEET AT 10:58 PM MONDAY
LOW TIDE 0.9 FEET AT 5:24 AM TUESDAY
HIGH TIDE 2.0 FEET AT 11:06 AM TUESDAY
LOW TIDE 0.9 FEET AT 5:07 PM TUESDAY
AT TINIAN ISLAND...
HIGH TIDE 1.7 FEET AT 10:04 AM MONDAY
LOW TIDE 0.2 FEET AT 4:11 PM MONDAY
HIGH TIDE 1.9 FEET AT 10:59 PM MONDAY
LOW TIDE 0.3 FEET AT 5:07 AM TUESDAY
HIGH TIDE 1.6 FEET AT 11:07 AM TUESDAY
LOW TIDE 0.3 FEET AT 4:50 PM TUESDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 1.8 FEET AT 10:13 AM MONDAY
LOW TIDE 0.3 FEET AT 4:40 PM MONDAY
HIGH TIDE 2.2 FEET AT 11:26 PM MONDAY
LOW TIDE 0.8 FEET AT 5:50 AM TUESDAY
HIGH TIDE 1.7 FEET AT 11:25 AM TUESDAY
LOW TIDE 0.6 FEET AT 5:17 PM 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. 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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