Surf Forecast
Issued by NWS Tiyan, Guam

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
416
FZPQ50 PGUM 280525
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
325 PM ChST Fri Feb 28 2025

.SYNOPSIS...A high risk of rip currents will continue for east-
facing reefs through late Sunday night. A moderate risk of rip
currents for west-facing reefs and a low risk for rip currents for
south-facing reefs continue as well.

$$

GUZ001-MPZ001>003-282200-
Guam-Rota-Tinian-Saipan-
325 PM ChST Fri Feb 28 2025

...HIGH RIP CURRENT RISK REMAINS IN EFFECT ALONG EAST FACING REEFS
THROUGH LATE SUNDAY NIGHT...
...HIGH SURF ADVISORY IS NO LONGER IN EFFECT...

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

.TONIGHT...
Rip current risk.....High *.
Surf Height
      North facing reefs............6 to 8 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............4 to 6 feet.
Swell/Period
      Primary swell................Northeast at 5 to 8 feet.
      Primary period...............8 seconds.
      Secondary swell..............North at around 2 feet.
      Secondary period.............10 seconds.
Water temperature
      Ritidian buoy..........83 Degrees.
Coastal Winds...............Breezy. Northeast at 15 to 25 mph.


.SATURDAY AND SATURDAY NIGHT...
Rip current risk.....High *.
Surf Height
      North facing reefs............6 to 8 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............3 to 5 feet.
Swell/Period
      Primary swell................Northeast at 5 to 8 feet.
      Primary period...............8 seconds.
Maximum Afternoon Heat index.........Around 94.
Coastal Winds...............Breezy. Northeast at 15 to 25 mph.

.OUTLOOK...Dominant northeast trade swell is expected to
maintain a high rip current risk along east facing reefs
through the weekend.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.5 feet at  7:35 PM Friday
Low  tide -0.3 feet at  2:22 AM Saturday
High tide  2.4 feet at  8:51 AM Saturday
Low  tide  0.7 feet at  2:48 PM Saturday
High tide  2.4 feet at  8:28 PM Saturday
Low  tide  0.0 feet at  3:03 AM Sunday

At Rota Island...
High tide  2.3 feet at  7:32 PM Friday
Low  tide -0.3 feet at  2:16 AM Saturday
High tide  2.2 feet at  8:48 AM Saturday
Low  tide  0.6 feet at  2:42 PM Saturday
High tide  2.3 feet at  8:25 PM Saturday
Low  tide  0.0 feet at  2:57 AM Sunday

At Tinian Island...
Low  tide  0.1 feet at  1:53 AM Saturday
High tide  1.7 feet at  8:24 AM Saturday
Low  tide  0.9 feet at  2:10 PM Saturday
High tide  1.8 feet at  7:46 PM Saturday
Low  tide  0.3 feet at  2:34 AM Sunday
High tide  1.8 feet at  8:48 AM Sunday

At Tanapag Harbor, Saipan...
High tide  2.3 feet at  7:40 PM Friday
Low  tide -0.1 feet at  2:27 AM Saturday
High tide  2.2 feet at  8:59 AM Saturday
Low  tide  0.8 feet at  2:48 PM Saturday
High tide  2.2 feet at  8:38 PM Saturday
Low  tide  0.1 feet at  3:07 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.

$$