872
FZPQ50 PGUM 181820
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
420 AM ChST Fri Jul 19 2024

.SYNOPSIS...There will be a moderate risk of rip currents along
north and east facing reefs. There will also be a moderate risk for
lightning through tonight.

$$

GUZ001-MPZ001>003-190800-
Guam-Rota-Tinian-Saipan-
420 AM ChST Fri Jul 19 2024

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

.TODAY THROUGH SATURDAY (6 AM TO 6 PM SATURDAY)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............5 to 8 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............2 to 3 feet.
Swell/Period
      Primary swell................East at 3 to 5 feet.
      Primary period...............9 seconds.
      Secondary swell..............Southwest at 1 to 2 feet.
      Secondary period.............9 seconds.
Water temperature
      Ritidian buoy..........86 Degrees.
Maximum afternoon heat index...........Around 104.
Coastal Winds............East at 10 to 20 mph with gusts
                         of 25 mph near showers.

.OUTLOOK...A moderate risk for lightning will return Sunday night
and Monday. Otherwise, there is little change through the weekend.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
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
High tide  2.5 feet at  5:18 AM Saturday
Low  tide -0.3 feet at 12:52 PM Saturday
High tide  2.5 feet at  8:26 PM Saturday

At Rota Island...
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
High tide  2.4 feet at  5:15 AM Saturday
Low  tide -0.3 feet at 12:46 PM Saturday
High tide  2.4 feet at  8:23 PM Saturday

At Tinian Island...
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
High tide  1.9 feet at  4:06 AM Saturday
Low  tide -0.4 feet at 12:30 PM Saturday
High tide  1.7 feet at  8:36 PM Saturday
Low  tide  1.6 feet at 12:00 AM Sunday

At Tanapag Harbor, Saipan...
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
High tide  2.2 feet at  4:51 AM Saturday
Low  tide -0.5 feet at 12:59 PM Saturday
High tide  2.2 feet at  9:00 PM Saturday
Low  tide  1.9 feet at  1:13 AM 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