203
FZPQ50 PGUM 150600
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
400 PM ChST Thu May 15 2025

.DISCUSSION...There will be a moderate risk of rip currents along
east facing reefs for the next several days, with a low risk along
all other reefs. Little change is expected through the weekend.

$$

GUZ001-MPZ001>003-152245-
Guam-Rota-Tinian-Saipan-
400 PM ChST Thu May 15 2025

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

.TONIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 3 to 5 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........85 Degrees.
Winds...............East at 10 to 15 mph.

.FRIDAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 3 to 5 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 101.
Winds...............East at 10 to 15 mph.

.FRIDAY NIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 3 to 5 feet.
      Primary period...............8 seconds.
Winds...............East at 10 to 20 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide -0.1 feet at  3:18 PM Thursday
High tide  2.4 feet at 10:48 PM Thursday
Low  tide  1.8 feet at  4:06 AM Friday
High tide  2.2 feet at  8:24 AM Friday
Low  tide -0.1 feet at  4:00 PM Friday
High tide  2.3 feet at 11:36 PM Friday
Low  tide  1.9 feet at  4:54 AM Saturday

At Rota Island...
Low  tide -0.1 feet at  3:12 PM Thursday
High tide  2.2 feet at 10:45 PM Thursday
Low  tide  1.7 feet at  4:00 AM Friday
High tide  2.1 feet at  8:21 AM Friday
Low  tide -0.1 feet at  3:54 PM Friday
High tide  2.2 feet at 11:33 PM Friday
Low  tide  1.7 feet at  4:48 AM Saturday

At Tinian Island...
Low  tide -0.1 feet at  3:00 PM Thursday
High tide  1.7 feet at 11:24 PM Thursday
Low  tide  1.6 feet at  3:36 AM Friday
High tide  1.7 feet at  7:12 AM Friday
Low  tide -0.1 feet at  3:42 PM Friday
High tide  1.7 feet at 12:18 AM Saturday
Low  tide  1.6 feet at  4:24 AM Saturday

At Tanapag Harbor, Saipan...
Low  tide -0.2 feet at  3:26 PM Thursday
High tide  2.1 feet at 11:34 PM Thursday
Low  tide  1.8 feet at  4:07 AM Friday
High tide  1.9 feet at  7:52 AM Friday
Low  tide -0.2 feet at  4:05 PM Friday
High tide  2.2 feet at 12:23 AM Saturday
Low  tide  1.8 feet at  5:17 AM Saturday

* 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.

$$