835
FZPQ50 PGUM 020540
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
340 PM ChST Wed Apr 2 2025

.DISCUSSION...A moderate risk of rip currents will continue along east
facing reefs through tonight, but is expected to become high on
Thursday as a pulse of long-period northeast swell moves in. This will
increase surf along north and east facing reefs, maintaining a high
risk of rip currents for east reefs through the end of the week.

$$

GUZ001-MPZ001>003-022045-
Guam-Rota-Tinian-Saipan-
340 PM ChST Wed Apr 2 2025

...HIGH RISK OF RIP CURRENTS FROM EARLY THURSDAY MORNING THROUGH
SATURDAY AFTERNOON ALONG EAST FACING REEFS...

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............4 to 6 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................Northeast at 4 to 6 feet.
      Primary period...............8 seconds.
      Secondary swell..............Northeast at around 2 feet.
      Secondary period.............11 seconds.
Water Temperature
      Ritidian buoy.......... 83 Degrees.
Winds...............East at 10 to 15 mph.

.THURSDAY...
Rip Current Risk.....High *.
Surf Height
      North facing reefs............5 to 7 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................Northeast at 5 to 7 feet.
      Primary period...............8 seconds.
      Secondary swell..............Northeast at around 2 feet.
      Secondary period.............10 seconds.
Max Heat Index.........Around 96.
Winds...............East at 10 to 15 mph.

.THURSDAY NIGHT...
Rip Current Risk.....High *.
Surf Height
      North facing reefs............5 to 7 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................Northeast at 5 to 7 feet.
      Primary period...............9 seconds.
      Secondary swell..............Northeast at around 3 feet.
      Secondary period.............14 seconds.
Winds...............East at 10 to 15 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide -0.4 feet at  4:49 PM Wednesday
High tide  2.3 feet at 12:01 AM Thursday
Low  tide  1.5 feet at  5:14 AM Thursday
High tide  2.3 feet at 10:09 AM Thursday
Low  tide -0.4 feet at  5:46 PM Thursday
High tide  2.2 feet at  1:27 AM Friday

At Rota Island...
Low  tide -0.4 feet at  4:43 PM Wednesday
High tide  2.1 feet at 11:58 PM Wednesday
Low  tide  1.4 feet at  5:08 AM Thursday
High tide  2.2 feet at 10:06 AM Thursday
Low  tide -0.4 feet at  5:40 PM Thursday
High tide  2.1 feet at  1:24 AM Friday

At Tinian Island...
Low  tide -0.2 feet at  4:32 PM Wednesday
High tide  1.7 feet at 12:09 AM Thursday
Low  tide  1.4 feet at  4:43 AM Thursday
High tide  1.9 feet at  9:26 AM Thursday
Low  tide -0.2 feet at  5:32 PM Thursday
High tide  1.7 feet at  1:33 AM Friday

At Tanapag Harbor, Saipan...
Low  tide -0.4 feet at  4:51 PM Wednesday
High tide  2.2 feet at 12:36 AM Thursday
Low  tide  1.6 feet at  5:32 AM Thursday
High tide  2.1 feet at  9:55 AM Thursday
Low  tide -0.3 feet at  5:52 PM Thursday
High tide  2.2 feet at  1:56 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.

$$