172
FZPQ50 PGUM 161741
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
341 AM ChST Wed Jul 17 2024

.SYNOPSIS...A moderate risk of rip currents will continue along east
facing reefs. A moderate risk of rip currents may develop along south
and west facing reefs later this week. There will also be a moderate
risk of lightning through Sunday night.

$$

GUZ001-MPZ001>003-170900-
Guam-Rota-Tinian-Saipan-
341 AM ChST Wed Jul 17 2024

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

.TODAY AND TONIGHT (6 AM TO 6 AM)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............4 to 6 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................East at 3 to 5 feet.
      Primary period...............8 seconds.
      Secondary swell..............West at around 1 feet.
      Secondary period.............8 seconds.
Water temperature
      Ritidian buoy.......... 86 Degrees.
Maximum afternoon heat index...........Around 99.
Coastal Winds............East at 10 to 20 mph.

.THURSDAY (6 AM TO 6 PM)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............3 to 5 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................East at 2 to 5 feet.
      Primary period...............8 seconds.
      Secondary swell..............South at around 2 feet.
      Secondary period.............8 seconds.
Maximum afternoon heat index...........Around 97.
Coastal Winds............Breezy. Southeast at 10 to 25 mph.

.OUTLOOK...Surf along west and south facing reefs may build
1 to 3 feet higher later this week with southwest swell.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  0.3 feet at 10:30 AM Wednesday
High tide  2.2 feet at  6:15 PM Wednesday
Low  tide  1.9 feet at 10:26 PM Wednesday
High tide  2.4 feet at  3:34 AM Thursday
Low  tide  0.1 feet at 11:18 AM Thursday
High tide  2.3 feet at  7:05 PM Thursday

At Rota Island...
Low  tide  0.3 feet at 10:24 AM Wednesday
High tide  2.0 feet at  6:12 PM Wednesday
Low  tide  1.7 feet at 10:20 PM Wednesday
High tide  2.2 feet at  3:31 AM Thursday
Low  tide  0.1 feet at 11:12 AM Thursday
High tide  2.2 feet at  7:02 PM Thursday

At Tinian Island...
Low  tide  0.0 feet at 10:17 AM Wednesday
High tide  1.4 feet at  6:35 PM Wednesday
Low  tide  1.4 feet at  9:10 PM Wednesday
High tide  1.7 feet at  2:29 AM Thursday
Low  tide -0.2 feet at 11:01 AM Thursday
High tide  1.5 feet at  7:20 PM Thursday

At Tanapag Harbor, Saipan...
Low  tide  0.1 feet at 10:41 AM Wednesday
High tide  1.7 feet at  6:47 PM Wednesday
Low  tide  1.6 feet at  9:45 PM Wednesday
High tide  2.1 feet at  3:09 AM Thursday
Low  tide -0.1 feet at 11:24 AM Thursday
High tide  1.9 feet at  7:40 PM Thursday

* 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.

$$