943
FZPQ50 PGUM 261745
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
345 AM ChST Sun Apr 27 2025

.DISCUSSION...A moderate risk of rip currents is expected along north
and east facing reefs for at least the next several days. Existing
surf is expected to persist for much of the week as the secondary
north swell weakens, but trade swell strengthens slightly in the
second half of the week.

$$

GUZ001-MPZ001>003-270845-
Guam-Rota-Tinian-Saipan-
345 AM ChST Sun Apr 27 2025

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

.TODAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............2 to 4 feet.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............8 seconds.
      Secondary swell..............North at around 3 feet.
      Secondary period.............12 seconds.
Water Temperature
      Tanapag buoy..........84 Degrees.
Max Heat Index.........Around 98.
Winds...............East at 10 to 15 mph.

.TONIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............2 to 4 feet.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............8 seconds.
      Secondary swell..............North at around 3 feet.
      Secondary period.............12 seconds.
Winds...............East at 10 to 15 mph.

.MONDAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............9 seconds.
      Secondary swell..............North at around 2 feet.
      Secondary period.............11 seconds.
Max Heat Index.........Around 98.
Winds...............East at 10 to 15 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.6 feet at  6:30 AM Sunday
Low  tide  0.0 feet at  1:18 PM Sunday
High tide  2.6 feet at  7:54 PM Sunday
Low  tide  1.1 feet at  1:30 AM Monday
High tide  2.7 feet at  7:06 AM Monday
Low  tide -0.4 feet at  2:00 PM Monday

At Rota Island...
High tide  2.5 feet at  6:27 AM Sunday
Low  tide  0.0 feet at  1:12 PM Sunday
High tide  2.5 feet at  7:51 PM Sunday
Low  tide  1.1 feet at  1:24 AM Monday
High tide  2.5 feet at  7:03 AM Monday
Low  tide -0.3 feet at  1:54 PM Monday

At Tinian Island...
High tide  1.9 feet at  5:42 AM Sunday
Low  tide  0.0 feet at 12:42 PM Sunday
High tide  1.7 feet at  7:30 PM Sunday
Low  tide  1.0 feet at 12:42 AM Monday
High tide  1.9 feet at  6:12 AM Monday
Low  tide -0.2 feet at  1:30 PM Monday

At Tanapag Harbor, Saipan...
High tide  2.3 feet at  6:28 AM Sunday
Low  tide -0.2 feet at  1:15 PM Sunday
High tide  2.3 feet at  8:09 PM Sunday
Low  tide  1.1 feet at  1:32 AM Monday
High tide  2.3 feet at  6:57 AM Monday
Low  tide -0.5 feet at  2:02 PM Monday

* 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.

$$