063
FZPQ50 PGUM 061841
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
441 AM ChST Fri Nov 7 2025

.DISCUSSION...There will be a high risk for rip currents along
east and south facing reefs through Saturday afternoon and a moderate
risk for rip currents along north and west facing reefs through at
least Saturday. As Tropical Storm Fung-wong (32W) moves west-
northwest away from the Marianas, rip current risk and surf could
become high along west facing reefs this weekend. A high risk for
rip currents may be maintained along east facing reefs as a
trade-wind swell reinforces the southeast swell through the weekend.

$$

GUZ001-MPZ001>003-070945-
Guam-Rota-Tinian-Saipan-
441 AM ChST Fri Nov 7 2025

...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM CHST SATURDAY ALONG SOUTH
FACING REEFS...
...HIGH RISK OF RIP CURRENTS THROUGH SATURDAY AFTERNOON ALONG
EAST AND SOUTH FACING REEFS...

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

.TODAY...
Rip Current Risk.....High. Pounding surf will produce life
                     threatening rip currents at reefs and beaches.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............9 to 11 feet.
      South facing reefs............9 to 11 feet.
      West  facing reefs............5 to 7 feet.
Swell/Period
      Primary swell................Southeast at 4 to 9 feet.
      Primary period...............9 seconds.
      Secondary swell..............East at around 4 feet.
      Secondary period.............9 seconds.
Water Temperature
      Ritidian buoy..........85 Degrees.
Max Heat Index.........Around 103.
Winds...............Breezy. Southeast at 15 to 25 mph.

.TONIGHT...
Rip Current Risk.....High. Pounding surf will produce life
                     threatening rip currents at reefs and beaches.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............8 to 10 feet.
      South facing reefs............8 to 10 feet.
      West  facing reefs............6 to 8 feet.
Swell/Period
      Primary swell................Southeast at 5 to 8 feet.
      Primary period...............9 seconds.
      Secondary swell..............East at around 4 feet.
      Secondary period.............9 seconds.
Winds...............Southeast at 10 to 20 mph.

.SATURDAY...
Rip Current Risk.....High. Pounding surf will produce life
                     threatening rip currents at reefs and beaches.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............8 to 10 feet.
      South facing reefs............8 to 10 feet.
      West  facing reefs............7 to 8 feet.
Swell/Period
      Primary swell................South at 5 to 8 feet.
      Primary period...............9 seconds.
      Secondary swell..............East at 3 to 4 feet.
      Secondary period.............8 seconds.
Max Heat Index.........Around 103.
Winds...............Southeast at 10 to 20 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.5 feet at  9:26 AM Friday
Low  tide  1.4 feet at  2:45 PM Friday
High tide  2.5 feet at  7:43 PM Friday
Low  tide -1.0 feet at  3:06 AM Saturday
High tide  2.4 feet at 10:27 AM Saturday
Low  tide  1.5 feet at  3:40 PM Saturday

At Rota Island...
High tide  2.3 feet at  9:23 AM Friday
Low  tide  1.3 feet at  2:39 PM Friday
High tide  2.3 feet at  7:40 PM Friday
Low  tide -0.9 feet at  3:00 AM Saturday
High tide  2.3 feet at 10:24 AM Saturday
Low  tide  1.5 feet at  3:34 PM Saturday

At Tinian Island...
High tide  1.6 feet at  9:29 AM Friday
Low  tide  1.3 feet at  1:54 PM Friday
High tide  1.9 feet at  6:51 PM Friday
Low  tide -0.7 feet at  2:50 AM Saturday
High tide  1.7 feet at 10:42 AM Saturday
Low  tide  1.4 feet at  2:57 PM Saturday

At Tanapag Harbor, Saipan...
High tide  2.4 feet at  9:49 AM Friday
Low  tide  1.6 feet at  2:56 PM Friday
High tide  2.3 feet at  7:37 PM Friday
Low  tide -0.8 feet at  3:12 AM Saturday
High tide  2.4 feet at 10:55 AM Saturday
Low  tide  1.7 feet at  3:52 PM 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. Rip currents
will be life threatening. If caught in a rip current, swim parallel
to the beach rather than against the current.

$$