Surf Forecast
Issued by NWS Tiyan, Guam

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FZPQ50 PGUM 181816
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Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
416 AM ChST Mon Aug 19 2019

.SYNOPSIS...A moderate risk of rip currents along north and west
facing reefs will spread to south facing reefs tonight. Rip risk
along south and west facing reefs could become high Tuesday. There
will be a moderate threat of lightning through midweek.

$$

GUZ001>004-190900-
Guam-Rota-Tinian-Saipan-
416 AM ChST Mon Aug 19 2019

.TODAY...
Coastal Winds............Southeast at 5 to 15 mph.
Surf along North facing reefs............3 to 5 feet.
Surf along East  facing reefs............2 to 4 feet.
Surf along South facing reefs............2 to 4 feet.
Surf along West  facing reefs............3 to 5 feet.
Primary swell...............West at 3 to 5 feet.
Primary period..............10 seconds.
Secondary swell...............East around 2 feet.
Secondary period..............10 seconds.

Rip current risk.....Moderate. Wave conditions support stronger or
                     more frequent rip currents. Always have a
                     flotation device with you in the water.

Sea surface temperature at Ritidian buoy...85 Degrees.
Maximum afternoon heat index...........Around 100.

.TONIGHT...
Coastal Winds............South at 5 to 10 mph.
Surf along North facing reefs............3 to 5 feet.
Surf along East  facing reefs............2 to 4 feet.
Surf along South facing reefs............3 to 5 feet.
Surf along West  facing reefs............4 to 6 feet.
Primary swell...............West at 3 to 6 feet.
Primary period..............9 seconds.
Secondary swell...............East at 2 feet.
Secondary period..............10 seconds.

Rip current risk.....Moderate. Wave conditions support stronger or
                     more frequent rip currents. Always have a
                     flotation device with you in the water.

.OUTLOOK...Surf along south and west facing reefs will build an
additional 2 to 3 feet Tuesday and could briefly become hazardous
late Tuesday or Tuesday night.

Tide information for the next 24 hours...

At Apra Harbor, Guam...
High tide  2.2 feet at  9:23 AM Monday
Low  tide  0.3 feet at  4:05 PM Monday
High tide  2.3 feet at 10:30 PM Monday
Low  tide  0.9 feet at  4:42 AM Tuesday

At Rota Island...
High tide  2.0 feet at  9:20 AM Monday
Low  tide  0.3 feet at  3:59 PM Monday
High tide  2.1 feet at 10:27 PM Monday
Low  tide  0.9 feet at  4:36 AM Tuesday

At Tinian Island...
High tide  1.6 feet at  9:21 AM Monday
Low  tide  0.1 feet at  3:42 PM Monday
High tide  1.7 feet at 10:28 PM Monday
Low  tide  0.3 feet at  4:19 AM Tuesday

At Tanapag Harbor, Saipan...
High tide  1.8 feet at  9:28 AM Monday
Low  tide  0.3 feet at  4:06 PM Monday
High tide  2.0 feet at 10:55 PM Monday
Low  tide  1.0 feet at  4:49 AM Tuesday

$$


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