908
FZPQ50 PGUM 211824
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
424 AM ChST Sat Feb 22 2025

.SYNOPSIS...The north swell has come in a bit larger and a high
surf and high risk of rip currents continues through Saturday night.
A moderate risk of rip currents is also expected for west and east
facing reefs. A slight to moderate risk of lighting is possible for
Guam and Rota over the weekend.

$$

GUZ001-MPZ001>003-221000-
Guam-Rota-Tinian-Saipan-
424 AM ChST Sat Feb 22 2025

...HIGH SURF ADVISORY IN EFFECT UNTIL 5 AM CHST MONDAY...
...HIGH RISK OF RIP CURRENTS THROUGH LATE SUNDAY NIGHT...

36 hour Surf Zone Forecast for the Marianas from 600 AM Saturday
through 600 PM Sunday

.TODAY AND TONIGHT...
Rip current risk.....High. Pounding surf will produce life
                     threatening rip currents at reefs and
beaches.
Surf Height
      North facing reefs............7 to 9 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............6 to 8 feet.
Swell/Period
      Primary swell................East at 2 to 5 feet.
      Primary period...............9 seconds.
      Secondary swell..............North at around 6 feet.
      Secondary period.............11 seconds.
Water temperature
      Ritidian buoy.......... 83 Degrees.
Maximum Afternoon Heat index.........Around 99.
Coastal Winds...............Breezy. Northeast at 15 to 25 mph.

.SUNDAY...
Rip current risk.....High *.
Surf Height
      North facing reefs............7 to 9 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 4 to 7 feet.
      Primary period...............8 seconds.
      Secondary swell..............North at around 4 feet.
      Secondary period.............12 seconds.
Maximum Afternoon Heat index.........Around 98.
Coastal Winds...............Breezy. Northeast at 15 to 25 mph.

.OUTLOOK...As the northerly swell subsides on Sunday, the east-
northeast trade swell is expected to increase. The rip risk is
expected to become high for east facing reefs. In addition, the
surf and rip risk could stay high for north facing reefs.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  1.5 feet at  8:25 AM Saturday
High tide  1.8 feet at  1:16 PM Saturday
Low  tide -0.1 feet at  9:31 PM Saturday
High tide  1.8 feet at  5:55 AM Sunday
Low  tide  1.6 feet at 10:04 AM Sunday
High tide  1.8 feet at  2:30 PM Sunday

At Rota Island...
Low  tide  1.4 feet at  8:19 AM Saturday
High tide  1.7 feet at  1:13 PM Saturday
Low  tide -0.1 feet at  9:25 PM Saturday
High tide  1.7 feet at  5:52 AM Sunday
Low  tide  1.5 feet at  9:58 AM Sunday
High tide  1.7 feet at  2:27 PM Sunday

At Tinian Island...
Low  tide  1.4 feet at  7:16 AM Saturday
High tide  1.7 feet at 12:39 PM Saturday
Low  tide  0.1 feet at  9:20 PM Saturday
High tide  1.5 feet at  5:51 AM Sunday
Low  tide  1.4 feet at  8:29 AM Sunday
High tide  1.7 feet at  1:34 PM Sunday

At Tanapag Harbor, Saipan...
Low  tide  1.7 feet at  8:40 AM Saturday
High tide  1.9 feet at  1:00 PM Saturday
Low  tide  0.1 feet at  9:50 PM Saturday
High tide  1.9 feet at  6:15 AM Sunday
Low  tide  1.7 feet at 10:17 AM Sunday
High tide  1.9 feet at  2:08 PM 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. If caught in
a rip current, swim parallel to the beach rather than against the
current.

$$