FZPQ50 PGUM 280621
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
421 PM ChST Wed Aug 28 2024

.SYNOPSIS...There is a moderate risk of rip currents along east
facing reefs, while the risk of rip currents remains low along
all other reefs. As a weak northwest swell from distant Typhoon
Shanshan reaches the Marianas, rip current risk will become moderate
along north facing reefs Thursday night. There is a moderate risk of
lightning later tonight and then again starting Friday.

$$

GUZ001-MPZ001>003-282130-
Guam-Rota-Tinian-Saipan-
421 PM ChST Wed Aug 28 2024

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

.TONIGHT AND THURSDAY (6 PM TO 6 PM THURSDAY)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............1 to 2 foot.
Swell/Period
      Primary swell................East at 3 to 5 feet.
      Primary period...............8 seconds.
Water temperature
      Tanapag buoy..........86 Degrees.
Maximum afternoon heat index...........Around 104.
Coastal Winds............East at 10 to 15 mph.


.THURSDAY NIGHT (6 PM TO 6 AM FRIDAY)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............2 to 4 feet.
Swell/Period
      Primary swell................East at 3 to 5 feet.
      Primary period...............8 seconds.
      Secondary swell..............Northwest at around 2 feet.
      Secondary period.............12 seconds.
Coastal Winds............East at 10 to 15 mph.

.OUTLOOK...Little change Saturday. East swell will start to decrease
Sunday allowing surf to slowly drop along east facing reefs.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  1.8 feet at  9:55 PM Wednesday
High tide  2.2 feet at  2:18 AM Thursday
Low  tide  0.0 feet at 10:18 AM Thursday
High tide  2.3 feet at  6:09 PM Thursday
Low  tide  1.7 feet at 11:11 PM Thursday
High tide  2.2 feet at  3:37 AM Friday

At Rota Island...
Low  tide  1.7 feet at  9:49 PM Wednesday
High tide  2.1 feet at  2:15 AM Thursday
Low  tide  0.0 feet at 10:12 AM Thursday
High tide  2.1 feet at  6:06 PM Thursday
Low  tide  1.6 feet at 11:05 PM Thursday
High tide  2.0 feet at  3:34 AM Friday

At Tinian Island...
Low  tide  1.4 feet at  8:51 PM Wednesday
High tide  1.7 feet at  1:20 AM Thursday
Low  tide -0.3 feet at  9:53 AM Thursday
High tide  1.5 feet at  5:59 PM Thursday
Low  tide  1.3 feet at 10:05 PM Thursday
High tide  1.6 feet at  2:26 AM Friday

At Tanapag Harbor, Saipan...
Low  tide  1.7 feet at  9:51 PM Wednesday
High tide  2.0 feet at  1:58 AM Thursday
Low  tide -0.2 feet at 10:25 AM Thursday
High tide  2.1 feet at  6:27 PM Thursday
Low  tide  1.7 feet at 11:02 PM Thursday
High tide  1.9 feet at  3:23 AM Friday

* 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.

$$