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North Pacific Marine Weather Discussion

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AGPN40 KWNM 240752
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
1252 AM PDT Mon Jun 24 2019

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

The 06Z surface analysis indicated high pressure centered near
39N141W with ridge extending northeast to the Oregon waters. Low
pressure was located west of the Queen Charlotte Islands, with
trough west of the Oregon waters. The latest Ascat passes from
0446Z and 0545Z indicated several areas of 30 KT winds, with over
the extreme southern Oregon coastal waters, and another over the
northern California coastal waters southwest of Cape Mendocino,
and this also matches up well with current wind grids.  

The 00Z models continue to be in very good agreement through the
forecast period. Over the next few days, the high pressure ridge
will shift slightly further west while the coastal trough
weakens. The low pressure mentioned above west of the Queen
Charlottes will move southeast today and tonight, them move
across the Oregon waters Tueday into Wednesday before becoming an
open trough Wednesday night into Thursday. With only very minor
differences noted between the models, will continue to favor the
GFS for the wind grids, with no warning headlines needed through
the period. This will also result in few if any changes from
previous forecast. Expect the winds over the southern Oregon and
northern California coastal waters to gradually decrease today 
and tonight. 

.SEAS...The 06Z sea state analysis indicated that observed seas
were mostly within a foot of the Wavewatch forecast values, and
will continue to use the Wavewatch for the wind grids with very
similar values from ECMWF WAM. 

.EXTRATROPICAL STORM SURGE GUIDANCE...N/A.

.WARNINGS...Preliminary.

.PZ5 Washington/Oregon Waters...
     None.

.PZ6 California Waters...
     None.

$$

.Forecaster Kosier. Ocean Prediction Center.