000
FZPQ50 PGUM 280452
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
252 PM ChST Sun May 28 2023

.SYNOPSIS...
A long period westerly swell from Typhoon Mawar will continue
to result in high surf and a high rip risk along west facing
reefs tonight and possibly into tomorrow; diminishing below
hazardous levels by tomorrow night. A persistent trade swell
will result in a moderate risk of rip currents for east facing
reefs.

$$

GUZ001-MPZ001>003-282000-
Guam-Rota-Tinian-Saipan-
252 PM ChST Sun May 28 2023

...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM CHST MONDAY ALONG
WEST FACING REEFS...
...HIGH RISK OF RIP CURRENTS THROUGH MONDAY AFTERNOON ALONG
WEST FACING REEFS...

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

.TONIGHT (6 PM TO 6 PM MONDAY)...
Rip current risk.....High *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............7 to 9 feet.
Swell/Period
      Primary swell................West at 5 to 6 feet.
      Primary period...............10 to 11 seconds.
      Secondary swell..............East at around 6 feet.
      Secondary period.............8 to 9 seconds.
Water temperature
      Ipan buoy....................83 Degrees.
Maximum afternoon heat index.......Around 98.
Coastal Winds......................East at 10 to 15 mph.


.MONDAY NIGHT (6 PM TO 6 AM TUESDAY)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............5 to 7 feet.
Swell/Period
      Primary swell................West at 4 to 5 feet.
      Primary period...............10 to 11 seconds.
      Secondary swell..............East at around 6 feet.
      Secondary period.............8 seconds.
Coastal Winds......................East at 10 to 15 mph.

.OUTLOOK...
A long period westerly swell from Mawar is expected to increase
by midweek and could again bring hazardous surf and rip risk
conditions.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  0.7 feet at  8:07 PM Sunday
High tide  2.4 feet at  3:26 AM Monday
Low  tide  1.3 feet at  9:49 AM Monday
High tide  1.8 feet at  2:49 PM Monday
Low  tide  0.9 feet at  8:59 PM Monday
High tide  2.4 feet at  3:53 AM Tuesday

At Rota Island...
Low  tide  0.6 feet at  8:01 PM Sunday
High tide  2.2 feet at  3:23 AM Monday
Low  tide  1.2 feet at  9:43 AM Monday
High tide  1.7 feet at  2:46 PM Monday
Low  tide  0.8 feet at  8:53 PM Monday
High tide  2.3 feet at  3:50 AM Tuesday

At Tinian Island...
Low  tide  0.4 feet at  7:40 PM Sunday
High tide  1.6 feet at  3:02 AM Monday
Low  tide  0.8 feet at  9:36 AM Monday
High tide  1.2 feet at  2:16 PM Monday
Low  tide  0.6 feet at  8:25 PM Monday
High tide  1.6 feet at  3:20 AM Tuesday

At Tanapag Harbor, Saipan...
Low  tide  0.5 feet at  8:06 PM Sunday
High tide  2.1 feet at  3:37 AM Monday
Low  tide  1.0 feet at 10:12 AM Monday
High tide  1.4 feet at  2:51 PM Monday
Low  tide  0.6 feet at  8:54 PM Monday
High tide  2.1 feet at  4:02 AM Tuesday

* Low Risk of rip currents - The risk of rip currents is low,
however, strong currents can 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

$$