829
FZPQ50 PGUM 120627
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
427 PM ChST Wed Mar 12 2025

.SYNOPSIS...A high risk of rip currents is expected for north and east
facing reefs for at least the next few days. A moderate rip current
risk is expected to continue for west facing reefs through at least
Thursday night.
$$

GUZ001-MPZ001>003-122130-
Guam-Rota-Tinian-Saipan-
427 PM ChST Wed Mar 12 2025

...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST SATURDAY...
...HIGH RISK OF RIP CURRENTS THROUGH SATURDAY AFTERNOON...

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

.TONIGHT...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............7 to 9 feet.
      East  facing reefs............6 to 9 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............3 to 5 feet.
Swell/Period
      Primary swell................Northeast at 5 to 7 feet.
      Primary period...............9 seconds.
      Secondary swell..............North at around 4 feet.
      Secondary period.............11 seconds.
Water temperature
      Ritidian buoy.......... 83 Degrees.
Coastal Winds...............East at 10 to 20 mph.


.THURSDAY AND THURSDAY NIGHT...
Rip current risk.....High *.
Surf Height
      North facing reefs............7 to 9 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............3 to 5 feet.
Swell/Period
      Primary swell................Northeast at 6 to 8 feet.
      Primary period...............9 to 11 seconds.
      Secondary swell..............North at around 4 feet.
      Secondary period.............11 seconds.
Maximum Afternoon Heat index.........Around 97.
Coastal Winds...............East at 10 to 20 mph.

.OUTLOOK...
A pulse of long-period northeast swell will arrive by Thursday
night, which looks to maintain hazardous surf for north facing reefs
and a high risk of rip currents for north and east facing reefs
through the rest of the week.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.1 feet at  6:23 PM Wednesday
Low  tide  0.0 feet at  1:15 AM Thursday
High tide  2.2 feet at  7:55 AM Thursday
Low  tide  0.9 feet at  1:44 PM Thursday
High tide  2.1 feet at  7:08 PM Thursday
Low  tide  0.1 feet at  1:50 AM Friday

At Rota Island...
High tide  2.0 feet at  6:20 PM Wednesday
Low  tide  0.0 feet at  1:09 AM Thursday
High tide  2.0 feet at  7:52 AM Thursday
Low  tide  0.9 feet at  1:38 PM Thursday
High tide  2.0 feet at  7:05 PM Thursday
Low  tide  0.1 feet at  1:44 AM Friday

At Tinian Island...
High tide  1.7 feet at  5:20 PM Wednesday
Low  tide  0.2 feet at 12:41 AM Thursday
High tide  1.6 feet at  7:26 AM Thursday
Low  tide  1.0 feet at 12:54 PM Thursday
High tide  1.7 feet at  6:14 PM Thursday
Low  tide  0.3 feet at  1:18 AM Friday

At Tanapag Harbor, Saipan...
High tide  2.0 feet at  6:31 PM Wednesday
Low  tide  0.1 feet at  1:15 AM Thursday
High tide  2.1 feet at  7:57 AM Thursday
Low  tide  0.9 feet at  1:43 PM Thursday
High tide  2.0 feet at  7:18 PM Thursday
Low  tide  0.3 feet at  1:51 AM Friday

* 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.

$$