964
FZPQ50 PGUM 120547
SRFGUM

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

.SYNOPSIS...There will be a high risk of rip currents along all except
south facing reefs through tonight, which will then gradually
diminish Thursday night.

$$

GUZ001-MPZ001>003-122200-
Guam-Rota-Tinian-Saipan-
347 PM ChST Wed Feb 12 2025

...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST THURSDAY ALONG WEST
AND NORTH FACING REEFS...
...HIGH RISK OF RIP CURRENTS THROUGH THURSDAY AFTERNOON ALONG WEST,
NORTH AND EAST FACING REEFS...

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

.TONIGHT (6 AM TO 6 AM THURSDAY)...
Rip current risk.....High. Pounding surf will produce life
                     threatening rip currents at reefs and beaches.
Surf Height
      North facing reefs............8 to 10 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............3 to 5 feet.
      West  facing reefs............7 to 9 feet.
Swell/Period
      Primary swell................North at 5 to 7 feet.
      Primary period...............13 seconds.
      Secondary swell..............East at 4 to 5 feet.
      Secondary period.............8 seconds.
Water temperature
      Tanapag buoy..........83 Degrees.
Maximum afternoon heat index...........Around 97.
Coastal Winds............Northeast at 10 to 20 mph.

.THURSDAY (6 AM TO 6 PM)...
Rip current risk.....High *.
Surf Height
      North facing reefs............7 to 9 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............3 to 5 feet.
      West  facing reefs............6 to 8 feet.
Swell/Period
      Primary swell................North at 5 to 6 feet.
      Primary period...............12 seconds.
      Secondary swell..............East at around 4 feet.
      Secondary period.............8 seconds.
Maximum afternoon heat index...........Around 100.
Coastal Winds............East at 15 to 20 mph.

.THURSDAY NIGHT (6 PM TO 6 AM FRIDAY)...
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............5 to 7 feet.
Swell/Period
      Primary swell................North at 4 to 6 feet.
      Primary period...............12 seconds.
      Secondary swell..............East at around 4 feet.
      Secondary period.............8 seconds.
Coastal Winds............Northeast at 10 to 20 mph.

.OUTLOOK...Surf will then continue to gradually diminish the next few
days.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.2 feet at  7:05 PM Wednesday
Low  tide -0.4 feet at  2:15 AM Thursday
High tide  2.1 feet at  9:07 AM Thursday
Low  tide  1.1 feet at  2:42 PM Thursday
High tide  2.1 feet at  7:47 PM Thursday
Low  tide -0.3 feet at  2:48 AM Friday
High tide  2.1 feet at  9:30 AM Friday

At Rota Island...
High tide  2.0 feet at  7:02 PM Wednesday
Low  tide -0.4 feet at  2:09 AM Thursday
High tide  2.0 feet at  9:04 AM Thursday
Low  tide  1.0 feet at  2:36 PM Thursday
High tide  2.0 feet at  7:44 PM Thursday
Low  tide -0.3 feet at  2:42 AM Friday
High tide  2.0 feet at  9:27 AM Friday

At Tinian Island...
High tide  1.9 feet at  6:03 PM Wednesday
Low  tide -0.1 feet at  1:50 AM Thursday
High tide  1.7 feet at  8:56 AM Thursday
Low  tide  1.2 feet at  1:57 PM Thursday
High tide  1.8 feet at  6:53 PM Thursday
Low  tide  0.1 feet at  2:25 AM Friday
High tide  1.6 feet at  9:18 AM Friday

At Tanapag Harbor, Saipan...
High tide  2.1 feet at  7:10 PM Wednesday
Low  tide -0.2 feet at  2:18 AM Thursday
High tide  2.2 feet at  9:13 AM Thursday
Low  tide  1.2 feet at  2:45 PM Thursday
High tide  2.1 feet at  7:56 PM Thursday
Low  tide  0.0 feet at  2:52 AM Friday
High tide  2.1 feet at  9:39 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.

$$