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FZPQ50 PGUM 200555
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
355 PM ChST Tue Apr 20 2021

.SYNOPSIS...Large west swell will produce hazardous surf along north
and west facing reefs of the Marianas the next few days.

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GUZ001>004-202100-
Guam-Rota-Tinian-Saipan-
355 PM ChST Tue Apr 20 2021

...HIGH SURF ADVISORY IN EFFECT THIS WEEK ALONG WEST AND NORTH
FACING REEFS...

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

.TONIGHT THROUGH WEDNESDAY NIGHT (6 PM TO 6 AM THURSDAY)...
Coastal Winds............East at around 10 mph.
Surf along North facing reefs............7 to 10 feet.
Surf along East  facing reefs............4 to 6 feet.
Surf along South facing reefs............5 to 7 feet.
Surf along West  facing reefs............10 to 13 feet.
Primary swell...............West at 7 to 9 feet.
Primary period..............13 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 95.

.OUTLOOK...Surf is expected to fall about a foot along west and
north facing reefs on Thursday, but will still be hazardous.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  0.2 feet at  7:46 PM Tuesday
High tide  2.2 feet at  3:48 AM Wednesday
Low  tide  1.6 feet at  9:16 AM Wednesday
High tide  1.9 feet at  1:17 PM Wednesday
Low  tide  0.2 feet at  8:51 PM Wednesday
High tide  2.3 feet at  4:35 AM Thursday
Low  tide  1.5 feet at 10:13 AM Thursday

At Rota Island...
Low  tide  0.2 feet at  7:40 PM Tuesday
High tide  2.0 feet at  3:45 AM Wednesday
Low  tide  1.5 feet at  9:10 AM Wednesday
High tide  1.8 feet at  1:14 PM Wednesday
Low  tide  0.2 feet at  8:45 PM Wednesday
High tide  2.1 feet at  4:32 AM Thursday
Low  tide  1.4 feet at 10:07 AM Thursday

At Tinian Island...
Low  tide  0.0 feet at  7:32 PM Tuesday
High tide  1.6 feet at  4:07 AM Wednesday
Low  tide  1.3 feet at  9:00 AM Wednesday
High tide  1.4 feet at 12:36 PM Wednesday
Low  tide  0.1 feet at  8:35 PM Wednesday
High tide  1.6 feet at  4:36 AM Thursday
Low  tide  1.2 feet at  9:47 AM Thursday

At Tanapag Harbor, Saipan...
Low  tide  0.2 feet at  7:56 PM Tuesday
High tide  2.1 feet at  4:12 AM Wednesday
Low  tide  1.5 feet at  9:53 AM Wednesday
High tide  1.6 feet at  1:06 PM Wednesday
Low  tide  0.2 feet at  9:00 PM Wednesday
High tide  2.2 feet at  4:50 AM Thursday
Low  tide  1.3 feet at 10:32 AM Thursday

$$