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000
FZPQ50 PGUM 191828
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
428 AM ChST Sat Apr 20 2024

.SYNOPSIS...There is a moderate risk of rip currents along north and
east facing reefs, with northeast to east trade swell and background
northerly swell.

$$

GUZ001-MPZ001>003-200800-
Guam-Rota-Tinian-Saipan-
428 AM ChST Sat Apr 20 2024

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

.TODAY AND TONIGHT (6 AM TO 6 AM SUNDAY)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............5 to 8 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............2 to 4 feet.
Swell/Period
      Primary swell................East at 4 to 5 feet.
      Primary period...............10 seconds.
      Secondary swell..............North at 2 to 3 feet.
      Secondary period.............11 seconds.
Water temperature
      Satellite estimate..........82 to 84 Degrees.
Maximum afternoon heat index...........Around 99.
Coastal Winds............East at 10 to 15 mph.

.SUNDAY (6 AM TO 6 PM)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............5 to 8 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............2 to 4 feet.
Swell/Period
      Primary swell................East at around 5 feet.
      Primary period...............10 seconds.
      Secondary swell..............North at around 2 feet.
      Secondary period.............10 seconds.
Maximum afternoon heat index...........Around 98.
Coastal Winds............East at around 15 mph.

.OUTLOOK...A moderate rip risk will continue for east facing reefs.
The rip risk could drop to low on Sunday for north facing reefs, but
should jump back to moderate as northerly swell increases by Monday.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  1.0 feet at 12:07 PM Saturday
High tide  2.0 feet at  5:45 PM Saturday
Low  tide  0.7 feet at 11:56 PM Saturday
High tide  2.2 feet at  6:21 AM Sunday
Low  tide  0.8 feet at 12:38 PM Sunday
High tide  2.1 feet at  6:35 PM Sunday

At Rota Island...
Low  tide  0.9 feet at 12:01 PM Saturday
High tide  1.9 feet at  5:42 PM Saturday
Low  tide  0.6 feet at 11:50 PM Saturday
High tide  2.1 feet at  6:18 AM Sunday
Low  tide  0.7 feet at 12:32 PM Sunday
High tide  2.0 feet at  6:32 PM Sunday

At Tinian Island...
Low  tide  0.8 feet at 11:24 AM Saturday
High tide  1.4 feet at  4:55 PM Saturday
Low  tide  0.6 feet at 11:15 PM Saturday
High tide  1.6 feet at  5:38 AM Sunday
Low  tide  0.6 feet at 11:59 AM Sunday
High tide  1.5 feet at  5:56 PM Sunday

At Tanapag Harbor, Saipan...
High tide  1.7 feet at  5:57 PM Saturday
Low  tide  0.7 feet at 11:45 PM Saturday
High tide  2.0 feet at  6:21 AM Sunday
Low  tide  0.6 feet at 12:33 PM Sunday
High tide  1.8 feet at  6:45 PM 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.

$$

Simpson