385
FZPQ50 PGUM 190719
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
519 PM CHST FRI JUN 19 2026
DISCUSSION
THERE IS A MODERATE RISK OF RIP CURRENTS ALONG EAST-FACING REEFS FOR
THE MARIANAS AT LEAST THROUGH SATURDAY NIGHT. THERE IS A MODERATE
RISK OF LIGHTNING FOR GUAM TONIGHT.
GUZ001-MPZ001>003-192230-
GUAM-ROTA-TINIAN-SAIPAN-
519 PM CHST FRI JUN 19 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM FRIDAY
THROUGH 600 AM SUNDAY
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 3 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............1 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT 3 FEET.
SECONDARY PERIOD.............10 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY.......... 86 DEGREES.
WINDS...............SOUTHEAST AT 10 TO 15 MPH.
SATURDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 3 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............1 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 3 TO 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
MAX HEAT INDEX.........AROUND 103.
WINDS...............SOUTHEAST AT 10 TO 15 MPH.
SATURDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 3 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............1 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST TO SOUTHEAST AT 3 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
WINDS...............SOUTHEAST AT AROUND 10 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.7 FEET AT 12:29 AM SATURDAY
LOW TIDE 1.6 FEET AT 6:12 AM SATURDAY
HIGH TIDE 2.3 FEET AT 10:49 AM SATURDAY
LOW TIDE 0.2 FEET AT 5:58 PM SATURDAY
HIGH TIDE 2.6 FEET AT 1:10 AM SUNDAY
LOW TIDE 1.4 FEET AT 7:17 AM SUNDAY
AT ROTA ISLAND...
HIGH TIDE 2.5 FEET AT 12:26 AM SATURDAY
LOW TIDE 1.5 FEET AT 6:06 AM SATURDAY
HIGH TIDE 2.2 FEET AT 10:46 AM SATURDAY
LOW TIDE 0.2 FEET AT 5:52 PM SATURDAY
HIGH TIDE 2.5 FEET AT 1:07 AM SUNDAY
LOW TIDE 1.3 FEET AT 7:11 AM SUNDAY
AT TINIAN ISLAND...
HIGH TIDE 2.0 FEET AT 12:27 AM SATURDAY
LOW TIDE 0.5 FEET AT 5:49 AM SATURDAY
HIGH TIDE 1.7 FEET AT 10:47 AM SATURDAY
LOW TIDE 0.1 FEET AT 5:35 PM SATURDAY
HIGH TIDE 2.0 FEET AT 1:08 AM SUNDAY
LOW TIDE 0.5 FEET AT 6:54 AM SUNDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.4 FEET AT 12:48 AM SATURDAY
LOW TIDE 1.3 FEET AT 6:44 AM SATURDAY
HIGH TIDE 1.8 FEET AT 11:03 AM SATURDAY
LOW TIDE 0.0 FEET AT 6:05 PM SATURDAY
HIGH TIDE 2.4 FEET AT 1:22 AM SUNDAY
LOW TIDE 1.0 FEET AT 7:44 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. RIP CURRENTS
WILL BE LIFE THREATENING. IF CAUGHT IN A RIP CURRENT, SWIM PARALLEL
TO THE BEACH RATHER THAN AGAINST THE CURRENT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page