Marine Interpretation Message
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000
AGPN40 KWNM 212135
MIMPAC

Marine Weather Discussion for N Pacific Ocean
NWS Ocean Prediction Center Washington DC
235 PM PDT Sat Apr 21 2018

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

There is still no ASCAT data available. Conditions across the
eastern pacific continue to remain quiet during the upcoming week
as a stable pattern prevails across the region with primarily NW
flow across the waters. During the next several days the largest
influence on the conditions of the seas will occur along the
northern California coast as a low pressure trough persists while
a ridge axis continues to the NW. There could be a brief period
of gales over the next 24 hours, mainly in the coastal zones.
The gradient will slowly weaken after 24 hours. A weak upstream
low center is expected to remain nearly stationary, just W of the
region later in the period before sinking southward and
dissipating. The 12Z global models are all in pretty good
agreement this morning, especially through Tue. After Tue the
UKMET and ECMWF remain closely aligned, with the ECMWF the
favored solution. I will populate the wind grids using a 50/50
blend of the 10M and 30M GFS through 12Z Wed, then transition to
the ECMWF for the remainder of the period.

Seas...both the ENP and WAM offer reasonable solutions. I will
populate the wave grids using the ENP through 12Z WED, then
transition to the WAM for the remainder of the week.

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

.WARNINGS...Preliminary.

.PZ5 Washington/Oregon Waters...
     None.

.PZ6 California Waters...
     None.

$$

.Forecaster Mills. Ocean Prediction Center.


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