579
FZPQ50 PGUM 041629
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
229 AM ChST Sat Oct 5 2024

.SYNOPSIS...A moderate risk of rip currents will continue along
north and east facing reefs, with a low risk along south and west
facing reefs. A moderate risk of lightning is expected through at
least the weekend.

$$

GUZ001-MPZ001>003-050730-
Guam-Rota-Tinian-Saipan-
229 AM ChST Sat Oct 5 2024

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

.TODAY (6 AM TO 6 PM)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................East-northeast at 3 to 5 feet.
      Primary period...............8 seconds.
      Secondary swell..............North-northeast at around 2 feet.
      Secondary period.............11 seconds.
Water temperature
      Ritidian buoy................86 Degrees.
Maximum afternoon heat index.......Around 101.
Coastal Winds......................East at 5 to 15 mph.


.TONIGHT AND SUNDAY (6 PM TO 6 PM SUNDAY)...
Rip current risk.....Moderate *.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............2 to 4 feet.
Swell/Period
      Primary swell................East-northeast at 4 to 6 feet.
      Primary period...............8 to 9 seconds.
      Secondary swell..............Northeast at around 2 feet.
      Secondary period.............10 to 11 seconds.
Maximum afternoon heat index.......Around 100.
Coastal Winds............East at 10 to 20 mph shifting to the south
                         to southwest around midnight. Gusts to 30 mph
                         possible near heavier showers.

.OUTLOOK...Surf and rip risk could rise and possibly become hazardous
late weekend into early next week, as tropical disturbance 99W moves
across the region, especially along north and east facing reefs. Surf
and rip risk look to rise along south and west facing reefs around the
middle of next week as a southwest swell sets up in the wake of 99W.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.2 feet at  9:14 AM Saturday
Low  tide  1.1 feet at  3:00 PM Saturday
High tide  2.2 feet at  8:25 PM Saturday
Low  tide  0.1 feet at  3:16 AM Sunday
High tide  2.2 feet at  9:58 AM Sunday
Low  tide  1.3 feet at  3:34 PM Sunday

At Rota Island...
High tide  2.1 feet at  9:11 AM Saturday
Low  tide  1.0 feet at  2:54 PM Saturday
High tide  2.0 feet at  8:22 PM Saturday
Low  tide  0.1 feet at  3:10 AM Sunday
High tide  2.0 feet at  9:55 AM Sunday
Low  tide  1.2 feet at  3:28 PM Sunday

At Tinian Island...
High tide  1.4 feet at  9:12 AM Saturday
Low  tide  0.9 feet at  2:25 PM Saturday
High tide  1.5 feet at  7:40 PM Saturday
Low  tide  0.0 feet at  3:06 AM Sunday
High tide  1.4 feet at 10:13 AM Sunday
Low  tide  1.1 feet at  3:01 PM Sunday

At Tanapag Harbor, Saipan...
High tide  1.9 feet at  9:31 AM Saturday
Low  tide  1.1 feet at  3:01 PM Saturday
High tide  2.0 feet at  8:36 PM Saturday
Low  tide  0.2 feet at  3:27 AM Sunday
High tide  1.9 feet at 10:19 AM Sunday
Low  tide  1.2 feet at  3:31 PM 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.

$$