AGPN40 KWNM 261358
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
658 AM PDT Sat May 26 2018

.FORECAST DISCUSSION...Major features/winds/seas/significant 
.weather for the North Pacific N of 30N and E of 150W.

No changes are planned for the morning update. The 06z models
remain in good agreement with the previous 00z models. The 12z
sea state analysis indicated that the Wavewatch and ECMWF WAM
matched up well with the observations over the offshore and
coastal waters. Further west, the ECMWF WAM values were more in
line with obs, and used the ECMWF WAM for the analysis. 

-----------------------------------------------------------------
PREVIOUS DISCUSSION...

06Z NCEP final surface analysis shows a weak low near Vancouver
Island with a dissipating cold front trailing across the PZ5
waters. Otherwise high pressure remains centered W of the central
PZ6 waters near 35N 143W with a ridge extending NE to just W of
the PZ5 waters. ASCAT-A misses much of the waters and ASCAT-B is
not available.

00Z models continue with good agreement through the forecast 
period, with only some minor subtle differences. These can easily
be resolved with some edits, so will continue the use of the 00Z
GFS for the majority of the forecast while blending in the 00Z
ECMWF with the GFS first sigma level winds for Mon into Wed. 
Will also use the 06Z NAMnest for the areas near the coastal 
waters in initial period as it matches a bit better with the 
initial observations. Global models continue to agree on the gale
force winds on Tuesday and into Wed night in the central PZ6 
waters. These will likely start earlier in adjacent coastal areas
and likely will extend into the offshore inner zones off central
California. Will keep the gale warnings in the offshores; 
however, will limit the extent of the gales to the eastern most 
portion of the zones. 

.SEAS...00Z wave models remain in agreement, so will continue 
the forecast with a 50/50 blend of the 00Z ECMWF WAM and the 00Z
WW3. Will make some small edits throughout.

.EXTRATROPICAL STORM SURGE GUIDANCE...N/A


.WARNINGS...Preliminary.

.PZ5 Washington/Oregon Waters...
     None.

.PZ6 California Waters...
.PZZ820...Inner Waters from Point St. George to Point Arena...
     Gale Possible Tuesday into Wednesday night. 
.PZZ825...Inner Waters from Point Arena to Pigeon Point...
     Gale Possible Tuesday into Wednesday night. 
.PZZ830...Inner Waters from Pigeon Point to Point Piedras Blancas...
     Gale Possible Tuesday night into Wednesday. 

$$

.Forecaster Kosier/Bancroft. Ocean Prediction Center.
Last Update:14:00Z, 26 May 2018
Updates: Four times per day

FZPN25 KWBC 261528
OFFPZ5

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
828 AM PDT Sat May 26 2018

Washington and Oregon waters-
Inner waters from  60 nm to 150 nm offshore.
Outer waters from 150 nm to 250 nm offshore.

Seas given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.

PZZ898-270515-
828 AM PDT Sat May 26 2018

.SYNOPSIS FOR WASHINGTON AND OREGON WATERS...A high pressure
ridge over the waters will persist today through Sun and then
weaken Sun night as a weakening cold front moves into the waters.
The front will pass SE of the waters Mon. High pressure will
rebuild E over the waters late Mon and Mon night, persist through
Tue night, then drift SW through Wed night. 

$$

PZZ800-270515-
Cape Flattery to Cape Shoalwater between 60 nm and 150 nm
offshore-
828 AM PDT Sat May 26 2018

.TODAY...W to NW winds 5 to 10 kt, becoming W to SW 5 to 15 kt. Seas
5 to 6 ft.
.TONIGHT...SW winds 5 to 15 kt, becoming 5 to 10 kt. Seas 5 to 7 ft.
.SUN...SW winds 5 to 10 kt. Seas 5 to 8 ft.
.SUN NIGHT...W to SW winds 5 to 10 kt, becoming 5 to 15 kt. Seas 7
to 8 ft.
.MON...W to NW winds 10 to 20 kt. Seas 7 to 8 ft.
.MON NIGHT...NW winds 15 to 25 kt. Seas 7 to 9 ft.
.TUE...NW winds 20 to 25 kt. Seas 7 to 9 ft.
.TUE NIGHT...NW winds 20 to 30 kt. Seas 7 to 10 ft.
.WED...NW winds 20 to 30 kt, diminishing to 15 to 20 kt. Seas 6 to 9
ft.
.WED NIGHT...NW winds 10 to 20 kt. Seas 6 to 7 ft. 

$$

PZZ900-270515-
Cape Flattery to Cape Shoalwater between 150 nm and 250 nm
offshore-
828 AM PDT Sat May 26 2018

.TODAY...SW winds 10 to 20 kt. Seas 5 to 8 ft.
.TONIGHT...SW winds 10 to 20 kt, becoming 10 to 15 kt. Seas 5 to 9
ft.
.SUN...SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 6 to 9
ft.
.SUN NIGHT...SW winds 10 to 20 kt, becoming W to NW. Seas 7 to 9 ft.
.MON...NW winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 7 to 9
ft.
.MON NIGHT...NW winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE...NW winds 15 to 20 kt. Seas 6 to 7 ft.
.TUE NIGHT...NW winds 15 to 25 kt. Seas 6 to 8 ft.
.WED...NW winds 10 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...NW winds 10 to 20 kt, becoming 10 to 15 kt. Seas 5 to 6
ft. 

$$

PZZ805-270515-
Cape Shoalwater to Cape Lookout between 60 nm and 150 nm
offshore-
828 AM PDT Sat May 26 2018

.TODAY...N to NW winds 10 to 15 kt, becoming NW 5 to 10 kt. Seas 5
to 6 ft.
.TONIGHT...W to NW winds 5 to 10 kt, becoming W to SW. Seas 5 to 6
ft.
.SUN...W winds 5 to 10 kt. Seas 5 to 7 ft.
.SUN NIGHT...W to NW winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 6 to 8 ft.
.MON...NW winds 5 to 15 kt, becoming N to NW 10 to 20 kt. Seas 7 to
8 ft.
.MON NIGHT...N winds 15 to 20 kt. Seas 7 to 8 ft.
.TUE...N to NW winds 15 to 20 kt. Seas 7 to 8 ft.
.TUE NIGHT...NW winds 20 to 25 kt. Seas 7 to 8 ft.
.WED...NW winds 15 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...NW winds 10 to 20 kt, becoming 10 to 15 kt. Seas 6 to 7
ft. 

$$

PZZ905-270515-
Cape Shoalwater to Cape Lookout between 150 nm and 250 nm
offshore-
828 AM PDT Sat May 26 2018

.TODAY...W to SW winds 5 to 15 kt. Seas 5 to 6 ft.
.TONIGHT...SW winds 5 to 15 kt. Seas 5 to 8 ft.
.SUN...W winds 5 to 10 kt, becoming W to SW 5 to 15 kt. Seas 5 to 8
ft.
.SUN NIGHT...W to SW winds 10 to 15 kt. Seas becoming 7 to 9 ft.
.MON...Winds veering to N to NW 10 to 20 kt. Seas 7 to 9 ft.
.MON NIGHT...N to NW winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE...N to NW winds 15 to 20 kt. Seas 6 to 7 ft.
.TUE NIGHT...NW winds 15 to 25 kt. Seas 6 to 7 ft.
.WED...NW winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 6 to 7
ft.
.WED NIGHT...NW winds 10 to 15 kt. Seas 5 to 6 ft. 

$$

PZZ810-270515-
Cape Lookout to Florence, OR between 60 nm and 150 nm offshore-
828 AM PDT Sat May 26 2018

.TODAY...N to NW winds 5 to 15 kt. Seas 5 to 6 ft.
.TONIGHT...N to NW winds 5 to 15 kt, becoming 5 to 10 kt. Seas 5 to
6 ft.
.SUN...N to NW winds 5 to 10 kt. Seas 5 to 7 ft.
.SUN NIGHT...N to NW winds 10 to 15 kt. Seas 6 to 8 ft.
.MON...N to NW winds 10 to 15 kt, becoming N 10 to 20 kt. Seas 7 to
8 ft.
.MON NIGHT...N winds 15 to 25 kt. Seas 7 to 9 ft.
.TUE...N winds 20 to 25 kt. Seas 7 to 9 ft.
.TUE NIGHT...N winds 15 to 25 kt. Seas 7 to 8 ft.
.WED...N to NW winds 15 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...N winds 15 to 20 kt. Seas 6 to 7 ft. 

$$

PZZ910-270515-
Cape Lookout to Florence, OR between 150 nm and 250 nm offshore-
828 AM PDT Sat May 26 2018

.TODAY...NW winds 5 to 10 kt, becoming W to SW 5 to 15 kt. Seas 5 to
6 ft.
.TONIGHT...W to SW winds 5 to 10 kt. Seas 5 to 6 ft.
.SUN...W winds 5 to 10 kt. Seas 5 to 8 ft.
.SUN NIGHT...W to NW winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 7 to 8 ft.
.MON...N to NW winds increasing to 10 to 20 kt. Seas 7 to 8 ft.
.MON NIGHT and TUE...N winds 15 to 20 kt. Seas 6 to 8 ft.
.TUE NIGHT...N to NW winds 15 to 20 kt. Seas 6 to 7 ft.
.WED...N winds 15 to 20 kt, becoming N to NW 10 to 15 kt. Seas 6 to
7 ft.
.WED NIGHT...N to NW winds 10 to 20 kt. Seas 5 to 7 ft. 

$$

PZZ815-270515-
Florence, OR to Point St. George between 60 nm and 150 nm
offshore-
828 AM PDT Sat May 26 2018

.TODAY...N winds 5 to 10 kt, increasing to 10 to 15 kt. Seas 5 to 6
ft.
.TONIGHT and SUN...N winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...N winds 15 to 25 kt. Seas building to 6 to 9 ft.
.MON...N winds 15 to 25 kt. Seas 7 to 9 ft.
.MON NIGHT...N winds 20 to 30 kt. Seas 7 to 10 ft.
.TUE and TUE NIGHT...N winds 20 to 30 kt. Seas 7 to 11 ft.
.WED...N winds 20 to 30 kt. Seas 6 to 11 ft.
.WED NIGHT...N winds 20 to 30 kt. Seas 6 to 10 ft. 

$$

PZZ915-270515-
Florence, OR to Point St. George between 150 nm and 250 nm
offshore-
828 AM PDT Sat May 26 2018

.TODAY and TONIGHT...N to NW winds 5 to 15 kt. Seas 5 to 6 ft.
.SUN...N to NW winds 5 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT...N to NW winds 10 to 20 kt. Seas 6 to 8 ft.
.MON...N to NW winds 10 to 20 kt. Seas 7 to 8 ft.
.MON NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft.
.TUE and TUE NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft.
.WED...N winds 15 to 25 kt. Seas 6 to 9 ft.
.WED NIGHT...N to NW winds 15 to 25 kt. Seas 5 to 8 ft. 

$$

.Forecaster Kosier. Ocean Prediction Center.
Last Update:15:29Z, 26 May 2018
Updates: Four times per day

FZPN26 KWBC 261528
OFFPZ6

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
828 AM PDT Sat May 26 2018

California waters-
Inner waters from  60 nm to 150 nm offshore.
Outer waters from 150 nm to 250 nm offshore.

Seas given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.

PZZ899-270500-
828 AM PDT Sat May 26 2018

.SYNOPSIS FOR CALIFORNIA WATERS...A high pressure ridge will
build in from the W today, persist tonight through Sun night,
then drift W Mon through Wed night. A low pressure trough will
develop along the coast late Sun, slowly strengthen through Tue
night, and persist through Wed night.  

$$

PZZ820-270500-
Point St. George to Point Arena between 60 nm and 150 nm
offshore-
828 AM PDT Sat May 26 2018

...GALE FORCE WINDS POSSIBLE TUE...

.TODAY...N to NW winds 10 to 20 kt, becoming 10 to 15 kt. Seas 5 to
7 ft. Chance of rain.
.TONIGHT...N winds increasing to 15 to 25 kt. Seas 5 to 8 ft.
.SUN...N winds 20 to 30 kt. Seas building to 6 to 10 ft.
.SUN NIGHT...N winds 20 to 30 kt. Seas building to 7 to 12 ft.
.MON...N winds 20 to 30 kt. Seas building to 8 to 14 ft.
.MON NIGHT...N winds 20 to 30 kt. Seas 8 to 14 ft.
.TUE...N winds 25 to 35 kt. Seas 10 to 14 ft.
.TUE NIGHT...N winds 25 to 35 kt. Seas 9 to 15 ft.
.WED...N winds 25 to 35 kt. Seas 9 to 16 ft.
.WED NIGHT...N winds 25 to 35 kt, becoming 25 to 30 kt. Seas
subsiding to 8 to 14 ft. 

$$

PZZ920-270500-
Point St. George to Point Arena between 150 nm and 250 nm
offshore-
828 AM PDT Sat May 26 2018

.TODAY...NW winds 5 to 15 kt, becoming N 10 to 15 kt. Seas 5 to 6
ft.
.TONIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN...N winds 15 to 25 kt. Seas 5 to 9 ft.
.SUN NIGHT...N winds 15 to 25 kt. Seas building to 6 to 11 ft.
.MON and MON NIGHT...N winds 20 to 30 kt. Seas 7 to 12 ft.
.TUE through WED...N winds 20 to 30 kt. Seas 7 to 13 ft.
.WED NIGHT...N winds 20 to 30 kt. Seas subsiding to 6 to 11 ft.

$$

PZZ825-270500-
Point Arena to Pigeon Point between 60 nm and 150 nm offshore-
828 AM PDT Sat May 26 2018

...GALE FORCE WINDS POSSIBLE TUE...

.TODAY...NW winds 10 to 20 kt. Seas 5 to 8 ft.
.TONIGHT...N to NW winds 15 to 25 kt. Seas 5 to 8 ft.
.SUN...N winds 20 to 25 kt. Seas building to 7 to 10 ft.
.SUN NIGHT...N winds 20 to 30 kt. Seas building to 8 to 12 ft.
.MON...N winds 20 to 30 kt. Seas building to 10 to 14 ft.
.MON NIGHT...N winds 25 to 30 kt. Seas 11 to 14 ft.
.TUE...N winds 25 to 35 kt. Seas 12 to 14 ft.
.TUE NIGHT...N winds 30 to 35 kt. Seas building to 13 to 16 ft.
.WED...N winds 25 to 35 kt. Seas 12 to 16 ft.
.WED NIGHT...N to NW winds 25 to 35 kt, becoming 25 to 30 kt. Seas
11 to 15 ft. 

$$

PZZ925-270500-
Point Arena to Pigeon Point between 150 nm and 250 nm offshore-
828 AM PDT Sat May 26 2018

.TODAY...N to NW winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...N to NW winds 15 to 20 kt. Seas 5 to 7 ft.
.SUN...N winds 15 to 25 kt. Seas building to 6 to 9 ft.
.SUN NIGHT...N winds 15 to 25 kt. Seas building to 7 to 11 ft.
.MON...N winds 20 to 30 kt. Seas building to 9 to 13 ft.
.MON NIGHT...N winds 25 to 30 kt. Seas 9 to 13 ft.
.TUE and TUE NIGHT...N winds 25 to 30 kt. Seas 10 to 14 ft.
.WED...N winds 20 to 30 kt. Seas 9 to 15 ft.
.WED NIGHT...N winds 20 to 30 kt. Seas 9 to 13 ft. 

$$

PZZ830-270500-
Pigeon Point to Point Piedras Blancas between 60 nm and 150 nm
offshore-
828 AM PDT Sat May 26 2018

...GALE FORCE WINDS POSSIBLE TUE NIGHT...

.TODAY...NW winds 15 to 20 kt. Seas 7 to 8 ft.
.TONIGHT...NW winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN...N to NW winds 15 to 25 kt. Seas 7 to 9 ft.
.SUN NIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft.
.MON...N winds 20 to 30 kt. Seas 7 to 13 ft.
.MON NIGHT...N winds 20 to 30 kt. Seas 9 to 13 ft.
.TUE...N winds 20 to 30 kt. Seas 10 to 14 ft.
.TUE NIGHT...N to NW winds 25 to 35 kt. Seas building to 12 to 16
ft.
.WED...N to NW winds 30 to 35 kt, becoming NW 25 to 30 kt. Seas 14
to 16 ft.
.WED NIGHT...NW winds 25 to 30 kt. Seas 13 to 15 ft. 

$$

PZZ930-270500-
Pigeon Point to Point Piedras Blancas between 150 nm and 250 nm
offshore-
828 AM PDT Sat May 26 2018

.TODAY...N winds 10 to 20 kt. Seas 5 to 8 ft.
.TONIGHT...NW winds 15 to 20 kt, becoming N. Seas 5 to 7 ft.
.SUN...N winds 15 to 25 kt. Seas building to 6 to 9 ft.
.SUN NIGHT...N winds 20 to 25 kt. Seas building to 8 to 11 ft.
.MON...N winds 20 to 30 kt. Seas building to 9 to 13 ft.
.MON NIGHT...N winds 25 to 30 kt. Seas 11 to 13 ft.
.TUE...N winds 25 to 30 kt. Seas 11 to 14 ft.
.TUE NIGHT...N winds 25 to 30 kt. Seas 12 to 15 ft.
.WED...N winds 25 to 30 kt. Seas 11 to 15 ft.
.WED NIGHT...N winds 20 to 30 kt. Seas 10 to 14 ft. 

$$

PZZ835-270500-
Point Piedras Blancas to Santa Cruz Island, CA between 60 nm and
150 nm offshore-
828 AM PDT Sat May 26 2018

.TODAY...N to NW winds 15 to 25 kt. Seas 7 to 9 ft. Chance of rain.
.TONIGHT...NW winds 20 to 25 kt. Seas 7 to 11 ft.
.SUN...NW winds 15 to 25 kt. Seas 7 to 10 ft.
.SUN NIGHT...N to NW winds 15 to 25 kt. Seas 6 to 9 ft.
.MON...N to NW winds 10 to 20 kt. Seas 6 to 10 ft.
.MON NIGHT...N to NW winds 15 to 25 kt. Seas building to 7 to 12 ft.
.TUE...N to NW winds 20 to 30 kt. Seas 8 to 13 ft.
.TUE NIGHT...N to NW winds 20 to 30 kt. Seas building to 9 to 15 ft.
.WED...N winds 25 to 30 kt, becoming NW. Seas 11 to 15 ft.
.WED NIGHT...NW winds 20 to 30 kt. Seas 12 to 14 ft. 

$$

PZZ935-270500-
Point Piedras Blancas to Santa Cruz Island, CA between 150 nm
and 250 nm offshore-
828 AM PDT Sat May 26 2018

.TODAY...N winds 15 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...N winds 15 to 20 kt, becoming NW. Seas 6 to 9 ft.
.SUN...N to NW winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN NIGHT...N winds 15 to 25 kt. Seas 7 to 9 ft.
.MON...N winds 15 to 25 kt. Seas 7 to 11 ft.
.MON NIGHT...N winds 15 to 25 kt. Seas 7 to 12 ft.
.TUE...N winds 20 to 30 kt. Seas becoming 9 to 13 ft.
.TUE NIGHT...N winds 25 to 30 kt. Seas building to 10 to 15 ft.
.WED...N winds 25 to 30 kt. Seas 12 to 15 ft.
.WED NIGHT...N winds 20 to 25 kt. Seas subsiding to 11 to 13 ft. 

$$

PZZ840-270500-
Santa Cruz Island, CA to San Clemente Island, CA between 60 nm
and 150 nm offshore-
828 AM PDT Sat May 26 2018

.TODAY...NW winds 15 to 25 kt. Seas 5 to 8 ft.
.TONIGHT...NW winds 15 to 25 kt. Seas building to 6 to 11 ft.
.SUN...NW winds 15 to 25 kt. Seas 6 to 11 ft.
.SUN NIGHT...NW winds 10 to 20 kt, becoming 10 to 15 kt. Seas
subsiding to 4 to 8 ft.
.MON...W to NW winds 5 to 15 kt. Seas 4 to 7 ft.
.MON NIGHT...W to NW winds 5 to 15 kt. Seas 5 to 8 ft.
.TUE...W to NW winds 10 to 20 kt. Seas building to 6 to 10 ft.
.TUE NIGHT...N to NW winds 15 to 25 kt. Seas building to 7 to 12 ft.
.WED...NW winds 15 to 25 kt. Seas building to 8 to 14 ft.
.WED NIGHT...NW winds 20 to 30 kt. Seas 8 to 13 ft. 

$$

PZZ940-270500-
Santa Cruz Island, CA to 120W between 150 nm and 250 nm offshore-
828 AM PDT Sat May 26 2018

.TODAY...N winds 15 to 25 kt. Seas 6 to 8 ft.
.TONIGHT...N to NW winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN...N to NW winds 15 to 25 kt. Seas 7 to 10 ft.
.SUN NIGHT...N to NW winds 15 to 20 kt. Seas subsiding to 6 to 8 ft.
.MON...N to NW winds 10 to 20 kt. Seas 6 to 9 ft.
.MON NIGHT...N to NW winds 10 to 20 kt. Seas 6 to 10 ft.
.TUE...N to NW winds 15 to 25 kt. Seas building to 7 to 12 ft.
.TUE NIGHT...N to NW winds 20 to 30 kt. Seas 7 to 13 ft.
.WED...N winds 15 to 25 kt. Seas 8 to 14 ft.
.WED NIGHT...N winds 15 to 25 kt. Seas 8 to 13 ft. 

$$

PZZ945-270500-
San Clemente Island, CA to Guadalupe Island from 60 nm offshore
west to 120W-
828 AM PDT Sat May 26 2018

.TODAY...N to NW winds 15 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...NW winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN...NW winds 10 to 20 kt. Seas 7 to 10 ft.
.SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
subsiding to 6 to 8 ft.
.MON...NW winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...NW winds 5 to 15 kt. Seas 5 to 6 ft.
.TUE...NW winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...W to NW winds 5 to 15 kt. Seas 5 to 8 ft.
.WED...NW winds 5 to 15 kt, becoming W to NW 10 to 20 kt. Seas
building to 6 to 10 ft.
.WED NIGHT...NW winds 10 to 20 kt. Seas 6 to 11 ft. 

$$

.Forecaster Kosier. Ocean Prediction Center.
Last Update:15:29Z, 26 May 2018
Updates: Four times per day

FZPN01 KWBC 261610
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1630 UTC SAT MAY 26 2018 

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE 
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY 
BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT. 

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION 
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE). 

SECURITE 

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT 
TO 50N 160E 

SYNOPSIS VALID 1200 UTC MAY 26. 
24 HOUR FORECAST VALID 1200 UTC MAY 27. 
48 HOUR FORECAST VALID 1200 UTC MAY 28. 

.WARNINGS. 

...GALE WARNING... 
.LOW 54N142W 991 MB MOVING N 10 KT. SECOND LOW 43N160W 1015 MB 
MOVING NE 20 KT. FRONT EXTENDS FROM LOW TO 55N140W TO 50N141W TO 
46N150W TO SECOND LOW. WITHIN 300 NM S...300 NM E AND 240 NM NE 
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.  WITHIN 300 NM N 
AND NE...480 NM SE AND S QUADRANTS...AND 300 NM SE OF THE FRONT  
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. 
.24 HOUR FORECAST LOW 57N142W 992 MB. FRONT TO EXTEND FROM LOW 
TO 57N140W TO 54N133W TO 50N136W TO 40N150W. WITHIN 240 NM E 
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 17 FT. ELSEWHERE FROM 
52N TO 59N BETWEEN 146W AND 133W...AND 300 NM SE OF FRONT S OF 
53N WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST LOW 57N139W 1007 MB. WITHIN 300 NM S AND SW 
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT. 

...GALE WARNING... 
.24 HOUR FORECAST LOW 44N169E 1003 MB. WITHIN 360 NM SE 
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 52N177W 996 MB. FRONT TO EXTEND FROM LOW 
TO 46N180W TO 40N170E. WITHIN 300 NM NE AND 480 NM SE 
QUADRANTS...AND 240 NM SE OF FRONT WINDS 25 TO 35 KT. SEAS 8 TO 
15 FT. 

...GALE WARNING... 
.FROM 31N TO 40N BETWEEN 120W AND 125W NW WINDS TO 25 KT. SEAS 
TO 9 FT.
.24 HOUR FORECAST FROM 30N TO 43N BETWEEN 127W AND 119W NW WINDS 
20 TO 30 KT. SEAS TO 12 FT. 
.48 HOUR FORECAST FROM 36N TO 42N BETWEEN 123W AND 128W NW WINDS 
25 TO 35 KT. SEAS 8 TO 14 FT. 

.SYNOPSIS AND FORECAST. 

.LOW 54N150W 997 MB MOVING E 15 KT. WITHIN 300 NM W AND SW 
QUADRANTS WINDS TO 25 KT. SEAS 8 TO 12 FT. 
.12 HOUR FORECAST LOW DISSIPATED WITH ASSOCIATED CONDITIONS 
DIMINISHED. 

.48 HOUR FORECAST LOW NW OF AREA 56N170E 989 MB. WITHIN 540 NM E 
QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT. 

.48 HOUR FORECAST FROM 33N TO 39N BETWEEN 152W AND 162W WINDS TO 
25 KT. SEAS TO 10 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 33N TO 38N W 
OF 165E. 
.24 HOUR FORECAST DENSE FOG FROM 33N TO 47N W OF 177E AND 240 NM 
SE OF A LINE FROM 48N138W TO 40N148W. 
.48 HOUR FORECAST DENSE FOG WITHIN 360 NM SE OF A LINE FROM 
50N174W TO 37N170E. 

.HIGH 36N145W 1030 MB MOVING NE 15 KT. 
.24 HOUR FORECAST HIGH 37N137W 1029 MB. 
.48 HOUR FORECAST HIGH 38N136W 1031 MB. 

.HIGH 44N177W 1027 MB MOVING SE 20 KT. 
.24 HOUR FORECAST HIGH 43N169W 1033 MB. 
.48 HOUR FORECAST HIGH 44N156W 1034 MB. 

.FORECASTER ROWLAND. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1200 UTC SAT MAY 26.
24 HOUR FORECAST VALID 1200 UTC SUN MAY 27.
48 HOUR FORECAST VALID 1200 UTC MON MAY 28.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FROM 24N TO 28N W OF 137W WINDS 20 KT OR LESS. SEAS TO 8 FT IN 
MIXED NE AND NW SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  

.LOW PRES NEAR 10.5N133W 1010 MB. FROM 10N TO 15N BETWEEN 128W 
AND 138W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES DISSIPATED. FROM 11N TO 16N W OF 129W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST FROM 11N TO 18N W OF 130W WINDS 20 KT OR LESS. 
SEAS TO 9 FT IN MIXED SWELL.

.N OF 23N WITHIN 150 NM W OF BAJA PENINSULA NW WINDS 20 TO 25 
KT. SEAS TO 9 FT. ELSEWHERE N OF 21.5N E OF 117W TO BAJA 
PENINSULA WINDS 20 KT OR LESS. SEAS TO 8 FT IN NW SWELL.
.24 HOUR FORECAST N OF 23N WITHIN 120 NM W OF BAJA PENINSULA AND 
FROM 21N TO 23N BETWEEN 109W AND 112W NW WINDS 20 TO 25 KT. SEAS 
TO 9 FT. ELSEWHERE FROM 20N TO 28.5N BETWEEN 117W AND BAJA 
PENINSULA...AND N OF 28.5N BETWEEN E OF 122W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN NW SWELL.
.48 HOUR FORECAST FROM 20N TO 28N BETWEEN 109W AND 116W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN NW SWELL.

.12 HOUR FORECAST GULF OF CALIFORNIA WITHIN 60 NM OF COAST OF 
MAINLAND MEXICO FROM 24N TO 28N NW WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT. 
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 1500 UTC SAT MAY 26...

.SCATTERED MODERATE FROM 10N TO 16.5N BETWEEN 126W AND 134W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 14.5N91W TO 10N113W TO 07.5N126W. ITCZ 
CONTINUES FROM LOW PRES NEAR 10.5N133W 1010 MB TO BEYOND 
07N140W. SCATTERED TO NUMEROUS STRONG CONVECTION FROM 02.5N TO 
09N BETWEEN 80.5W AND COLOMBIA. SCATTERED MODERATE TO STRONG 
FROM 05.5N TO 14N BETWEEN 80.5W AND 109W...AND FROM 04N TO 08N 
BETWEEN 117W AND 127W. 

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.
Last Update:16:11Z, 26 May 2018
Updates: Four times per day