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FZPQ50 PGUM 310607
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
407 PM ChST Fri Jan 31 2025

.SYNOPSIS...A high risk of rip currents continues along north and
east facing reefs, with hazardous surf along north facing reefs
through the weekend. A moderate risk of rip currents continues for
west facing reefs through at least Saturday night, with a low risk for
south facing reefs.

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GUZ001-MPZ001>003-312115-
Guam-Rota-Tinian-Saipan-
407 PM ChST Fri Jan 31 2025

...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST SUNDAY...
...HIGH RISK OF RIP CURRENTS THROUGH SUNDAY AFTERNOON...

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

.TONIGHT AND SATURDAY (6 PM TO 6 PM SATURDAY)...
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............9 to 11 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............5 to 7 feet.
Swell/Period
      Primary swell................Northeast at 6 to 8 feet.
      Primary period...............9 to 10 seconds.
      Secondary swell..............Northwest at 3 to 5 feet.
      Secondary period.............9 seconds.
Water temperature
      Ritidian buoy.......... 84 Degrees.
Coastal Winds............Breezy. East at 15 to 25 mph.

.SATURDAY NIGHT (6 PM TO 6 AM SUNDAY)...
Rip current risk.....High *.
Surf Height
      North facing reefs............7 to 9 feet.
      East  facing reefs............8 to 10 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............4 to 6 feet.
Swell/Period
      Primary swell................Northeast at 5 to 8 feet.
      Primary period...............8 seconds.
      Secondary swell..............Northwest at around 3 feet.
      Secondary period.............9 seconds.
Coastal Winds............Breezy. East at 15 to 25 mph.

.OUTLOOK...Hazardous surf for north facing reefs and a high risk of
rip currents for north and east facing reefs are expected to continue
through Sunday as a trade-wind surge continues across the region.
Winds, swells, and surf should begin to relax by Monday.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.3 feet at  8:20 PM Friday
Low  tide -0.6 feet at  3:24 AM Saturday
High tide  2.3 feet at 10:11 AM Saturday
Low  tide  1.0 feet at  3:59 PM Saturday
High tide  2.2 feet at  9:13 PM Saturday
Low  tide -0.3 feet at  4:04 AM Sunday

At Rota Island...
High tide  2.2 feet at  8:17 PM Friday
Low  tide -0.5 feet at  3:18 AM Saturday
High tide  2.2 feet at 10:08 AM Saturday
Low  tide  0.9 feet at  3:53 PM Saturday
High tide  2.1 feet at  9:10 PM Saturday
Low  tide -0.3 feet at  3:58 AM Sunday

At Tinian Island...
High tide  1.9 feet at  7:26 PM Friday
Low  tide -0.1 feet at  3:03 AM Saturday
High tide  1.7 feet at 10:03 AM Saturday
Low  tide  1.1 feet at  3:30 PM Saturday
High tide  1.7 feet at  8:29 PM Saturday
Low  tide  0.1 feet at  3:42 AM Sunday

At Tanapag Harbor, Saipan...
High tide  2.2 feet at  8:22 PM Friday
Low  tide -0.3 feet at  3:28 AM Saturday
High tide  2.2 feet at 10:26 AM Saturday
Low  tide  1.1 feet at  3:59 PM Saturday
High tide  2.1 feet at  9:18 PM Saturday
Low  tide  0.0 feet at  4:07 AM Sunday

* 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.

$$