876
FZPQ50 PGUM 180723
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
523 PM ChST Sun Apr 18 2021

.SYNOPSIS...Swell from distant Super Typhoon Surigae will maintain
hazardous surf along west facing reefs the next several days. The
rip current risk will be high on west facing reefs and moderate on
north...east and south exposures through the week.

$$

GUZ001>004-182230-
Guam-Rota-Tinian-Saipan-
523 PM ChST Sun Apr 18 2021

...HIGH SURF ADVISORY IN EFFECT UNTIL 7 AM CHST SATURDAY ALONG
WEST FACING REEFS...

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

.TONIGHT (6 PM TO 6 AM TUESDAY)...
Coastal Winds............East at 10 to 15 mph.
Surf along North facing reefs............4 to 6 feet.
Surf along East  facing reefs............4 to 6 feet.
Surf along South facing reefs............5 to 7 feet.
Surf along West  facing reefs............9 to 12 feet.
Primary swell...............West at around 7 feet.
Primary period..............12 seconds.
Secondary swell...............Northeast at around 3 feet.
Secondary period..............11 seconds.


Rip current risk.....High. Pounding surf will produce life
                     threatening rip currents at reefs and beaches.

Sea surface temperature at Ritidian buoy... 85 Degrees.
Maximum afternoon heat index...........Around 98.

.OUTLOOK...little change is expected the next several days.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.1 feet at  1:35 AM Monday
Low  tide  1.7 feet at  6:46 AM Monday
High tide  1.9 feet at 10:57 AM Monday
Low  tide  0.1 feet at  6:43 PM Monday
High tide  2.1 feet at  2:47 AM Tuesday
Low  tide  1.7 feet at  8:02 AM Tuesday

At Rota Island...
High tide  2.0 feet at  1:32 AM Monday
Low  tide  1.6 feet at  6:40 AM Monday
High tide  1.8 feet at 10:54 AM Monday
Low  tide  0.1 feet at  6:37 PM Monday
High tide  2.0 feet at  2:44 AM Tuesday
Low  tide  1.6 feet at  7:56 AM Tuesday

At Tinian Island...
High tide  1.5 feet at  2:39 AM Monday
Low  tide  1.3 feet at  6:54 AM Monday
High tide  1.4 feet at  9:57 AM Monday
Low  tide  0.0 feet at  6:29 PM Monday
High tide  1.5 feet at  3:28 AM Tuesday
Low  tide  1.3 feet at  8:03 AM Tuesday

At Tanapag Harbor, Saipan...
High tide  2.0 feet at  2:08 AM Monday
Low  tide  1.6 feet at  7:24 AM Monday
High tide  1.7 feet at 10:27 AM Monday
Low  tide  0.2 feet at  6:53 PM Monday
High tide  2.0 feet at  3:17 AM Tuesday
Low  tide  1.6 feet at  8:53 AM Tuesday

$$