704
FZPQ50 PGUM 171933
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
533 AM ChST Thu Jul 18 2024

.SYNOPSIS...There will be a moderate risk of rip currents along all
except west facing reefs today. The risk will spread to west facing
reefs also tonight. There will also be a moderate risk of lightning
through Saturday, starting again Sunday night.

$$

GUZ001-MPZ001>003-181045-
Guam-Rota-Tinian-Saipan-
533 AM ChST Thu Jul 18 2024

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

.TODAY (6 AM TO 6 PM)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............4 to 6 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................East at 4 to 6 feet.
      Primary period...............9 seconds.
      Secondary swell..............South at around 2 feet.
      Secondary period.............8 seconds.
Water temperature
      Tanapag buoy..........86 Degrees.
Maximum afternoon heat index...........Around 98.
Coastal Winds............Southeast at 10 to 20 mph.


.TONIGHT AND FRIDAY (6 PM TO 6 PM FRIDAY)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............3 to 5 feet.
      West  facing reefs............3 to 5 feet.
Swell/Period
      Primary swell................East at 2 to 4 feet.
      Primary period...............9 seconds.
      Secondary swell..............West to southwest at 2 to 3 feet.
      Secondary period.............8 seconds.
Maximum afternoon heat index...........Around 99.
Coastal Winds............East at 10 to 20 mph.

.OUTLOOK...Little change through the weekend.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  0.1 feet at 11:18 AM Thursday
High tide  2.3 feet at  7:05 PM Thursday
Low  tide  1.9 feet at 11:34 PM Thursday
High tide  2.4 feet at  4:26 AM Friday
Low  tide -0.1 feet at 12:05 PM Friday
High tide  2.4 feet at  7:47 PM Friday
Low  tide  1.9 feet at 12:31 AM Saturday

At Rota Island...
Low  tide  0.1 feet at 11:12 AM Thursday
High tide  2.2 feet at  7:02 PM Thursday
Low  tide  1.8 feet at 11:28 PM Thursday
High tide  2.3 feet at  4:23 AM Friday
Low  tide -0.1 feet at 11:59 AM Friday
High tide  2.3 feet at  7:44 PM Friday
Low  tide  1.8 feet at 12:25 AM Saturday

At Tinian Island...
Low  tide -0.2 feet at 11:01 AM Thursday
High tide  1.5 feet at  7:20 PM Thursday
Low  tide  1.5 feet at 10:11 PM Thursday
High tide  1.8 feet at  3:14 AM Friday
Low  tide -0.3 feet at 11:45 AM Friday
High tide  1.6 feet at  7:59 PM Friday
Low  tide  1.5 feet at 11:06 PM Friday

At Tanapag Harbor, Saipan...
Low  tide -0.1 feet at 11:24 AM Thursday
High tide  1.9 feet at  7:40 PM Thursday
Low  tide  1.7 feet at 10:51 PM Thursday
High tide  2.2 feet at  3:59 AM Friday
Low  tide -0.3 feet at 12:10 PM Friday
High tide  2.1 feet at  8:22 PM Friday
Low  tide  1.8 feet at 11:56 PM 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.

$$