379
FZPQ50 PGUM 190507
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
307 PM ChST Sun Jan 19 2025

.SYNOPSIS...There is a high risk of rip currents and hazardous surf
expected for north facing reefs tonight and tomorrow, as a pulse of
elevated north swell moves across the Marianas. The north swell
should diminish quickly, and the risk of rip currents should become
moderate by Monday night. There is a moderate risk of rip currents
for east and west facing reefs through at least Monday night.

$$

GUZ001-MPZ001>003-192015-
Guam-Rota-Tinian-Saipan-
307 PM ChST Sun Jan 19 2025

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

.TONIGHT (6 PM TO 6 AM MONDAY)...
Rip current risk.....High *.
Surf Height
      North facing reefs............7 to 9 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............5 to 7 feet.
Swell/Period
      Primary swell................North at around 6 feet.
      Primary period...............9 seconds.
      Secondary swell..............Northeast at 3 to 5 feet.
      Secondary period.............9 seconds.
Water temperature
      Ritidian buoy.......... 84 Degrees.
Coastal Winds............East at 10 to 20 mph.


.MONDAY (6 AM TO 6 PM)...
Rip current risk.....High *.
Surf Height
      North facing reefs............6 to 9 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............4 to 6 feet.
Swell/Period
      Primary swell................North at around 6 feet.
      Primary period...............9 seconds.
      Secondary swell..............Northeast at 3 to 5 feet.
      Secondary period.............8 seconds.
Maximum afternoon heat index...........Around 95.
Coastal Winds............East at 15 to 20 mph.


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

.OUTLOOK...The risk of rip currents looks to remain moderate for
north, east, and west facing reefs for much of next week, possibly
increasing to a high risk for north facing reefs as the next pulse
of north swell arrives sometime around Thursday.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  0.9 feet at  5:58 PM Sunday
High tide  1.6 feet at 10:55 PM Sunday
Low  tide  0.4 feet at  5:22 AM Monday
High tide  2.0 feet at 12:06 PM Monday
Low  tide  0.7 feet at  6:47 PM Monday
High tide  1.4 feet at 12:06 AM Tuesday

At Rota Island...
Low  tide  0.8 feet at  5:52 PM Sunday
High tide  1.5 feet at 10:52 PM Sunday
Low  tide  0.4 feet at  5:16 AM Monday
High tide  1.9 feet at 12:03 PM Monday
Low  tide  0.7 feet at  6:41 PM Monday
High tide  1.3 feet at 12:03 AM Tuesday

At Tinian Island...
Low  tide  0.9 feet at  5:57 PM Sunday
High tide  1.3 feet at 10:35 PM Sunday
Low  tide  0.5 feet at  5:01 AM Monday
High tide  1.6 feet at 11:56 AM Monday
Low  tide  0.7 feet at  6:50 PM Monday
High tide  1.2 feet at 12:03 AM Tuesday

At Tanapag Harbor, Saipan...
Low  tide  1.1 feet at  6:17 PM Sunday
High tide  1.5 feet at 11:09 PM Sunday
Low  tide  0.6 feet at  5:21 AM Monday
High tide  2.0 feet at 12:27 PM Monday
Low  tide  0.9 feet at  7:09 PM Monday
High tide  1.4 feet at 12:27 AM Tuesday

* 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.

$$