Surf Forecast
Issued by NWS Tiyan, Guam

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FZPQ50 PGUM 061931
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Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
531 AM ChST Wed Dec 7 2022

.SYNOPSIS...There will be a high risk of rip currents along east
facing reefs and a moderate risk along north reefs the next few
days. A slight risk of lightning is expected today.

$$

GUZ001-MPZ001>003-071000-
Guam-Rota-Tinian-Saipan-
531 AM ChST Wed Dec 7 2022

...HIGH RISK OF RIP CURRENTS THROUGH FRIDAY AFTERNOON ALONG
EAST FACING REEFS...

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

.TODAY AND TONIGHT (6 AM WEDNESDAY TO 6 AM THURSDAY)...
Rip current risk.....High *.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............8 to 10 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell...............East at 6 to 8 feet.
      Primary period..............9 seconds.
Water temperature
      Ritidian buoy..........85 Degrees.
Maximum afternoon heat index...........Around 100.
Coastal Winds............East at 15 to 20 mph.

.THURSDAY (6 AM TO 6 PM)...
Rip current risk.....High *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............1 to 2 feet.
Swell/Period
      Primary swell...............East at 5 to 7 feet.
      Primary period..............9 seconds.
Maximum afternoon heat index...........Around 100.
Coastal Winds............East at 10 to 20 mph.

.OUTLOOK...Little change through Friday. Surf could briefly fall
about a foot along east facing reefs Friday night or Saturday, but a
long-period trade swell will arrive over the weekend, bringing
easterly surf back up into Sunday.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.0 feet at  8:09 AM Wednesday
Low  tide  1.3 feet at  1:17 PM Wednesday
High tide  2.1 feet at  6:15 PM Wednesday
Low  tide -0.6 feet at  1:37 AM Thursday
High tide  2.1 feet at  8:51 AM Thursday
Low  tide  1.4 feet at  2:03 PM Thursday
High tide  2.1 feet at  6:43 PM Thursday

At Rota Island...
High tide  1.9 feet at  8:06 AM Wednesday
Low  tide  1.2 feet at  1:11 PM Wednesday
High tide  2.0 feet at  6:12 PM Wednesday
Low  tide -0.6 feet at  1:31 AM Thursday
High tide  2.0 feet at  8:48 AM Thursday
Low  tide  1.3 feet at  1:57 PM Thursday
High tide  1.9 feet at  6:40 PM Thursday

At Tinian Island...
High tide  1.5 feet at  8:10 AM Wednesday
Low  tide  1.3 feet at 12:08 PM Wednesday
High tide  1.7 feet at  5:12 PM Wednesday
Low  tide -0.4 feet at  1:16 AM Thursday
High tide  1.6 feet at  9:05 AM Thursday
Low  tide  1.4 feet at  1:02 PM Thursday
High tide  1.7 feet at  5:39 PM Thursday

At Tanapag Harbor, Saipan...
High tide  2.1 feet at  8:26 AM Wednesday
Low  tide  1.5 feet at  1:12 PM Wednesday
High tide  2.2 feet at  6:11 PM Wednesday
Low  tide -0.3 feet at  1:43 AM Thursday
High tide  2.2 feet at  9:10 AM Thursday
Low  tide  1.6 feet at  2:03 PM Thursday
High tide  2.1 feet at  6:36 PM Thursday

* Low Risk of rip currents - The risk of rip currents is low,
however, strong currents can 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

$$


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