Marine Interpretation Message
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000
AGPN40 KWNM 130236
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
636 PM PST Tue Dec 12 2017

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

The latest model guidance indicates that a high pressure ridge is
currently causing mainly light winds across most of the offshore
waters. A weak cold front will move into the pz5 waters by
Thursday, then dissipate Thursday night. Another front will then
move into the pz5 waters by Saturday. Farther south, northerly
winds will increase to 30 knots off of northern California by
late Friday as strong high pressure builds west of the offshore
waters. Winds will come close to gale force off of northern and
central California Friday night into Saturday night, but for now
will keep the strongest winds at 30 knots and see what the later
model runs show. These conditions will then diminish somewhat by
late Sunday. For wind grids will continue to use the current
grids throughout the forecast period. Current forecast looks
reasonable and will continue to carry no warnings across the
offshore waters.

For wave height grids will also continue to use the current grids
throughout the forecast period.

Extratropical storm surge guidance...n/a.

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

The 18Z surface analysis continues to show a dissipating
stationary front across the waters. This should dissipate over
night tonight.

Overall, 12Z model agreement is fairly good and consistent with
the previous forecasts. GFS appears to be a good solution to the
forecast, so will continue using it for the forecast through this
package. No headlines are expected throughout the forecast
period.

.SEAS...Will use the Wavewatch throughout the forecast for the
same reasoning as the winds.


.EXTRATROPICAL STORM SURGE GUIDANCE...N/A



.WARNINGS...Preliminary.

.PZ5 Washington/Oregon Waters...
     None.

.PZ6 California Waters...
     None.

$$

.Forecaster Nolt/Sommerville. Ocean Prediction Center.



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