FZPQ50 PGUM 162230
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
830 AM ChST Sat Oct 17 2026

.DISCUSSION...There will be a moderate risk of rip currents through
this morning. The rip risk will then start rising rapidly, with 
dangerous rip currents and surf likely moving in this afternoon or
evening through Sunday night. Surf heights of 20 to 30 feet are
likely across Guam, with surf heights up to 35 feet near the eye of
TY Champi. There will also be a high risk of lightning tonight 
through Monday. Coastal flooding is likely along all reefs, 
depending on actual track of Champi.

$$

GUZ001-MPZ001-171330-
Guam-Rota-
830 AM ChST Sat Oct 17 2026

The islands of Guam and Rota are now under a Tropical Cyclone Watch
or Warning. Please refer to the Tropical Cyclone Local Statement
WTPQ82 PGUM HLSPQ2 for more updated and detailed surf zone and
hazard information.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  1.9 feet at  1:44 PM Saturday
Low  tide  1.6 feet at  6:48 PM Saturday
High tide  1.8 feet at 10:21 PM Saturday
Low  tide  0.1 feet at  6:27 AM Sunday
High tide  1.9 feet at  2:55 PM Sunday
Low  tide  1.6 feet at  8:19 PM Sunday
High tide  1.7 feet at 11:25 PM Sunday

At Rota Island...
High tide  1.8 feet at  1:41 PM Saturday
Low  tide  1.5 feet at  6:42 PM Saturday
High tide  1.7 feet at 10:18 PM Saturday
Low  tide  0.1 feet at  6:21 AM Sunday
High tide  1.8 feet at  2:52 PM Sunday
Low  tide  1.5 feet at  8:13 PM Sunday
High tide  1.6 feet at 11:22 PM Sunday

$$
MPZ002-003-171330-
Tinian-Saipan-
830 AM ChST Sat Oct 17 2026

The islands of Guam and Rota are now under a Tropical Cyclone Watch
or Warning. Please refer to the Tropical Cyclone Local Statement
WTPQ82 PGUM HLSPQ2 for more updated and detailed surf zone and
hazard information.

Tide information for the next 36 hours...

At Tinian Island...
High tide  1.4 feet at  1:42 PM Saturday
Low  tide  0.5 feet at  6:25 PM Saturday
High tide  1.3 feet at 10:19 PM Saturday
Low  tide  0.0 feet at  6:04 AM Sunday
High tide  1.4 feet at  2:53 PM Sunday
Low  tide  0.5 feet at  7:56 PM Sunday
High tide  1.2 feet at 11:23 PM Sunday

At Tanapag Harbor, Saipan...
High tide  1.9 feet at  2:02 PM Saturday
Low  tide  1.7 feet at  7:08 PM Saturday
High tide  1.7 feet at  9:38 PM Saturday
Low  tide  0.2 feet at  6:42 AM Sunday
High tide  1.9 feet at  3:13 PM Sunday
Low  tide  0.3 feet at  7:44 AM Monday
High tide  1.9 feet at  4:08 PM Monday

* 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. Rip currents
will be life threatening. If caught in a rip current, swim parallel
to the beach rather than against the current.

$$

Kleeschulte