502
FZPQ50 PGUM 192018
SRFGUM

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

.SYNOPSIS...There will be a high risk of rip currents along north and
west facing reefs of the Marianas this week. Hazardous surf along
north and west reefs will continue through Wednesday night, then
begin to subside Thursday.

$$

GUZ001>004-201130-
Guam-Rota-Tinian-Saipan-
618 AM 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 AM Tuesday
through 600 PM Wednesday

.TODAY THROUGH WEDNESDAY (6 AM TO 6 PM WEDNESDAY)...
Coastal Winds............East at 10 to 15 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 8 feet.
Surf along West  facing reefs............10 to 14 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...84 Degrees.
Maximum afternoon heat index...........Around 95.

.OUTLOOK...Surf will diminish 1 to 2 feet along south, west and north
facing reefs Thursday.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  1.7 feet at  8:02 AM Tuesday
High tide  1.9 feet at 11:58 AM Tuesday
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

At Rota Island...
Low  tide  1.6 feet at  7:56 AM Tuesday
High tide  1.8 feet at 11:55 AM Tuesday
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

At Tinian Island...
Low  tide  1.3 feet at  8:03 AM Tuesday
High tide  1.4 feet at 11:05 AM Tuesday
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

At Tanapag Harbor, Saipan...
Low  tide  1.6 feet at  8:53 AM Tuesday
High tide  1.7 feet at 11:42 AM Tuesday
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

$$