942
FZPQ50 PGUM 210650
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
450 PM ChST Sun Jul 21 2024

.SYNOPSIS...Invest 93W is expected to pass the Marianas tonight and
surf could be elevated at times along eastern reefs. Moderate risk
of rip currents continues for north and east facing reefs, and
low risk for all other reefs. There will be a moderate risk for
lightning through this week.

$$

GUZ001-MPZ001>003-212200-
Guam-Rota-Tinian-Saipan-
450 PM ChST Sun Jul 21 2024

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

.TONIGHT (6 PM TO 6 AM MONDAY)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............2 to 3 feet.
      West  facing reefs............2 to 3 feet.
Swell/Period
      Primary swell................East at 5 to 6 feet.
      Primary period...............8 seconds.
      Secondary swell..............West at around 1 feet.
      Secondary period.............7 seconds.
Water temperature
      Tanapag buoy..........86 Degrees.
Coastal Winds............Southeast at 10 to 20 mph.

.MONDAY AND MONDAY NIGHT (6 AM TO 6 AM TUESDAY)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............2 to 3 feet.
      West  facing reefs............2 to 3 feet.
Swell/Period
      Primary swell................East at 4 to 5 feet.
      Primary period...............8 seconds.
      Secondary swell..............West at around 1 feet.
      Secondary period.............8 seconds.
Maximum afternoon heat index...........Around 103.
Coastal Winds............East at 10 to 15 mph.


.OUTLOOK...Swell may drop another foot on Tuesday.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.6 feet at  9:04 PM Sunday
Low  tide  1.9 feet at  2:07 AM Monday
High tide  2.7 feet at  6:58 AM Monday
Low  tide -0.4 feet at  2:25 PM Monday
High tide  2.7 feet at  9:40 PM Monday
Low  tide  1.8 feet at  2:54 AM Tuesday

At Rota Island...
High tide  2.5 feet at  9:01 PM Sunday
Low  tide  1.8 feet at  2:01 AM Monday
High tide  2.5 feet at  6:55 AM Monday
Low  tide -0.4 feet at  2:19 PM Monday
High tide  2.5 feet at  9:37 PM Monday
Low  tide  1.7 feet at  2:48 AM Tuesday

At Tinian Island...
High tide  1.7 feet at  9:10 PM Sunday
Low  tide  1.5 feet at 12:57 AM Monday
High tide  2.0 feet at  5:53 AM Monday
Low  tide -0.5 feet at  2:00 PM Monday
High tide  1.7 feet at  9:41 PM Monday
Low  tide  1.4 feet at  1:58 AM Tuesday
High tide  1.9 feet at  6:48 AM Tuesday

At Tanapag Harbor, Saipan...
High tide  2.3 feet at  9:37 PM Sunday
Low  tide  1.8 feet at  2:19 AM Monday
High tide  2.2 feet at  6:42 AM Monday
Low  tide -0.6 feet at  2:35 PM Monday
High tide  2.3 feet at 10:13 PM Monday
Low  tide  1.7 feet at  3:10 AM Tuesday

* 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.

$$