192
FZPQ50 PGUM 101805
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
405 AM ChST Tue Mar 11 2025

.SYNOPSIS...There`s currently a moderate risk for rip currents for
north and east-facing reefs. This will increase to a High Rip Risk
for north and east facing reefs starting at 6 AM Wednesday, with a
High Surf Advisory for north facing reefs also begins. All of these
risks are anticipated to subside by Friday afternoon. Until then,
in addition to these concerns, a moderate risk of rip currents will
develop Wednesday morning for west-facing reefs, with a low risk
for rip currents along south-facing reefs.

$$

GUZ001-MPZ001>003-110915-
Guam-Rota-Tinian-Saipan-
405 AM ChST Tue Mar 11 2025

...HIGH SURF ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO 6 AM CHST
FRIDAY...
...HIGH RISK OF RIP CURRENTS FROM WEDNESDAY MORNING THROUGH
LATE THURSDAY NIGHT...

36 hour Surf Zone Forecast for the Marianas from 600 AM Tuesday
through 600 PM Wednesday

.TODAY AND TONIGHT...
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............2 to 4 feet.
Swell/Period
      Primary swell................East at 4 to 6 feet.
      Primary period...............8 seconds.
      Secondary swell..............North at around 5 feet.
      Secondary period.............11 seconds.
Water temperature
      Ritidian buoy..........83 Degrees.
Maximum Afternoon Heat index.........Around 97.
Coastal Winds...............Northeast at 15 to 20 mph,
                            becoming east tonight.
.WEDNESDAY...
Rip current risk.....High *.
Surf Height
      North facing reefs............7 to 9 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............3 to 5 feet.
Swell/Period
      Primary swell................North at 4 to 7 feet.
      Primary period...............10 seconds.
      Secondary swell..............East at 4 to 5 feet.
      Secondary period.............9 seconds.
Maximum Afternoon Heat index.........Around 98.
Coastal Winds...............East at 10 to 20 mph.

.OUTLOOK...The hazardous surf and High Rip Risks will continue
through Friday morning, possibly longer.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.1 feet at  7:04 AM Tuesday
Low  tide  1.2 feet at 12:31 PM Tuesday
High tide  2.0 feet at  5:30 PM Tuesday
Low  tide -0.2 feet at 12:36 AM Wednesday
High tide  2.1 feet at  7:32 AM Wednesday
Low  tide  1.1 feet at  1:10 PM Wednesday

At Rota Island...
High tide  2.0 feet at  7:01 AM Tuesday
Low  tide  1.2 feet at 12:25 PM Tuesday
High tide  1.9 feet at  5:27 PM Tuesday
Low  tide -0.1 feet at 12:30 AM Wednesday
High tide  2.0 feet at  7:29 AM Wednesday
Low  tide  1.0 feet at  1:04 PM Wednesday

At Tinian Island...
High tide  1.6 feet at  6:37 AM Tuesday
Low  tide  1.2 feet at 11:20 AM Tuesday
High tide  1.8 feet at  4:19 PM Tuesday
Low  tide  0.0 feet at 12:00 AM Wednesday
High tide  1.6 feet at  7:04 AM Wednesday
Low  tide  1.1 feet at 12:09 PM Wednesday

At Tanapag Harbor, Saipan...
High tide  2.2 feet at  7:05 AM Tuesday
Low  tide  1.3 feet at 12:29 PM Tuesday
High tide  2.0 feet at  5:39 PM Tuesday
Low  tide  0.0 feet at 12:33 AM Wednesday
High tide  2.1 feet at  7:32 AM Wednesday
Low  tide  1.1 feet at  1:08 PM 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.

$$

Doll