Storm Watch 3, NWS Seattle, WA

385 
WHUS76 KSEW 240414
MWWSEW

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
914 PM PDT SUN OCT 23 2016

PZZ170-173-176-241215-
/O.CON.KSEW.GL.W.0086.161024T0900Z-161025T0100Z/
/O.CON.KSEW.SR.A.0003.161025T0100Z-161025T1300Z/
COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND 10 TO 60 NM-
COASTAL WATERS FROM JAMES ISLAND TO POINT GRENVILLE 10 TO 60 NM-
COASTAL WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER 10 TO 60 NM-
914 PM PDT SUN OCT 23 2016

...GALE WARNING REMAINS IN EFFECT FROM 2 AM TO 6 PM PDT MONDAY...
...STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH LATE
MONDAY NIGHT...

* WINDS...SOUTHEAST WIND 30 TO 40 KNOTS ON MONDAY. SOUTHEAST WIND 
  RISING TO 40 TO 50 KNOTS ON MONDAY NIGHT. 

* SEAS...COMBINED SEAS BUILDING ON MONDAY TO 9 TO 12 FEET WITH A 
  DOMINANT PERIOD OF 10 SECONDS. COMBINED SEAS BUILDING FURTHER ON 
  MONDAY NIGHT TO 20 TO 23 FEET WITH A DOMINANT PERIOD OF 13 
  SECONDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES EXPERIENCE
AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY RECOMMENDED THAT
MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE HARBOR PRIOR TO
THE ONSET OF GALE CONDITIONS.

A STORM WATCH IS ISSUED WHEN THE RISK OF STORM FORCE WINDS OF 48 TO
63 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN.  IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER ALTERING
THEIR PLANS.

&&

$$

PZZ150-153-156-241215-
/O.CON.KSEW.GL.W.0086.161024T2200Z-161025T1900Z/
COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT 10 NM-
COASTAL WATERS FROM JAMES ISLAND TO POINT GRENVILLE OUT 10 NM-
COASTAL WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER OUT 10 NM-
914 PM PDT SUN OCT 23 2016

...GALE WARNING REMAINS IN EFFECT FROM 3 PM MONDAY TO NOON PDT
TUESDAY...

* WINDS...SOUTHEAST WIND PEAKING NEAR 35 TO 45 KNOTS ON MONDAY 
  NIGHT. 

* SEAS...COMBINED SEAS BUILDING TO 17 TO 20 FT WITH A DOMINANT 
  PERIOD OF 13 SECONDS BY TUESDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES EXPERIENCE
AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY RECOMMENDED THAT
MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE HARBOR PRIOR TO
THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ130-241215-
/O.CON.KSEW.GL.W.0086.161025T0100Z-161025T1900Z/
WEST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-
914 PM PDT SUN OCT 23 2016

...GALE WARNING REMAINS IN EFFECT FROM 6 PM MONDAY TO NOON PDT
TUESDAY...

* WINDS...EAST WIND 30 TO 40 KNOTS.

* SEAS...COMBINED SEAS BUILDING TO 12 TO 16 FEET WITH A DOMINANT 
  PERIOD OF 13 SECONDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES EXPERIENCE
AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY RECOMMENDED THAT
MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE HARBOR PRIOR TO
THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ131>133-241215-
/O.CON.KSEW.GL.A.0056.161025T0600Z-161025T1900Z/
CENTRAL U.S. WATERS STRAIT OF JUAN DE FUCA-
EAST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-
NORTHERN INLAND WATERS INCLUDING THE SAN JUAN ISLANDS-
914 PM PDT SUN OCT 23 2016

...GALE WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
MORNING...

* WINDS...EAST TO SOUTHEAST WIND 25 TO 40 KNOTS.

* WAVES/SEAS...WIND WAVES 4 TO 8 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER ALTERING
THEIR PLANS.

&&

$$


WWW.WEATHER.GOV

760 
WHUS76 KSEW 241003
MWWSEW

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
303 AM PDT MON OCT 24 2016

PZZ170-173-176-241815-
/O.EXT.KSEW.GL.W.0086.000000T0000Z-161025T1900Z/
/O.CAN.KSEW.SR.A.0003.161025T0100Z-161025T1300Z/
COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND 10 TO 60 NM-
COASTAL WATERS FROM JAMES ISLAND TO POINT GRENVILLE 10 TO 60 NM-
COASTAL WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER 10 TO 60 NM-
303 AM PDT MON OCT 24 2016

...GALE WARNING NOW IN EFFECT UNTIL NOON PDT TUESDAY...
...STORM WATCH IS CANCELLED...

* WINDS...SOUTHEAST WIND 30 TO 40 KNOTS ON MONDAY...35 TO 45 KNOTS
  MONDAY NIGHT. 

* SEAS...COMBINED SEAS BUILDING ON MONDAY TO 10 TO 13 FEET WITH A
  DOMINANT PERIOD OF 14 SECONDS. COMBINED SEAS BUILDING FURTHER ON
  MONDAY NIGHT TO 23 TO 26 FEET WITH A DOMINANT PERIOD OF 12 SECONDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES EXPERIENCE
AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY RECOMMENDED THAT
MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE HARBOR PRIOR TO
THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ150-153-156-241815-
/O.CON.KSEW.GL.W.0086.161024T2200Z-161025T1900Z/
COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT 10 NM-
COASTAL WATERS FROM JAMES ISLAND TO POINT GRENVILLE OUT 10 NM-
COASTAL WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER OUT 10 NM-
303 AM PDT MON OCT 24 2016

...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO NOON
PDT TUESDAY...

* WINDS...SOUTHEAST WIND PEAKING NEAR 35 TO 45 KNOTS ON MONDAY 
  NIGHT. 

* SEAS...COMBINED SEAS BUILDING TO 17 TO 19 FT WITH A DOMINANT
  PERIOD OF 12 SECONDS BY TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES EXPERIENCE
AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY RECOMMENDED THAT
MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE HARBOR PRIOR TO
THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ130-241815-
/O.CON.KSEW.GL.W.0086.161025T0100Z-161025T1900Z/
WEST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-
303 AM PDT MON OCT 24 2016

...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON
PDT TUESDAY...

* WINDS...EAST WIND 30 TO 40 KNOTS.

* SEAS...COMBINED SEAS BUILDING TO 15 TO 18 FEET WITH A DOMINANT
  PERIOD OF 13 SECONDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES EXPERIENCE
AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY RECOMMENDED THAT
MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE HARBOR PRIOR TO
THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ110-241815-
/O.NEW.KSEW.RB.Y.0026.161025T0600Z-161025T1400Z/
GRAYS HARBOR BAR-
303 AM PDT MON OCT 24 2016

...SMALL CRAFT ADVISORY FOR ROUGH BAR IN EFFECT FROM 11 PM THIS
EVENING TO 7 AM PDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A SMALL CRAFT
ADVISORY FOR ROUGH BAR...WHICH IS IN EFFECT FROM 11 PM THIS EVENING
TO 7 AM PDT TUESDAY. 

* WAVES/SEAS...COMBINED SEAS BUILDING TO 11 TO 13 FEET TONIGHT.

* FIRST EBB...1245 PM THIS AFTERNOON.

* SECOND EBB...1 AM TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR ROUGH BAR MEANS THAT WAVE CONDITIONS ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT IN OR NEAR HARBOR
ENTRANCES.

&&

$$

PZZ131>133-241815-
/O.CON.KSEW.GL.A.0056.161025T0600Z-161025T1900Z/
CENTRAL U.S. WATERS STRAIT OF JUAN DE FUCA-
EAST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-
NORTHERN INLAND WATERS INCLUDING THE SAN JUAN ISLANDS-
303 AM PDT MON OCT 24 2016

...GALE WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH TUESDAY
MORNING...

* WINDS...EAST TO SOUTHEAST WIND 25 TO 40 KNOTS.

* WAVES/SEAS...WIND WAVES 4 TO 8 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER ALTERING
THEIR PLANS.

&&

$$


WWW.WEATHER.GOV

Area Forecast Discussion
National Weather Service Seattle WA
933 AM PDT Sun Oct 23 2016

.SYNOPSIS...Moist southwest flow aloft will prevail today. Weak
fronts will bring a little rain Monday and Tuesday. A wetter
system will move into the area on Wednesday and linger into
Thursday. Drier weather is likely late in the week.

&&

.SHORT TERM...Southwest flow aloft will prevail today in the wake
of a weak front last night. Overall, it looks like a pretty quiet
and mostly dry weather day in between fronts but a few showers
could linger. A relatively weak front will push into the area on
Monday for a little rain. An upper low spinning offshore will send
another weather system into the area on Tuesday for a continued
rain threat, higher towards the coast. Also of interest is a
surface low around 980 mb that will track south to north offshore
Monday night and Tuesday morning. This will bring some windy
conditions to the coast and north interior later Monday night and
Tuesday. Wind advisories will likely be needed eventually.
Schneider

.LONG TERM...Previous discussion...Wednesday looks to prove
interesting as yet another upper level low over the Pacific waters
will push a warm front north over the area. This front is expected
to bring rain pretty much area- wide with QPF values over much of
Western Washington getting close to an inch...albeit either
slightly below or slightly above. GFS and ECMWF disagree on track
of this low and the surface low accompanying it...and this
uncertainty will impact the wind forecast. Current forecast opts
to take the road of compromise between the ever- arguing siblings
and suggests some breeziness out there...mainly along the coast.
As would be expected from the previous analogy...the concept of a
consensus for the second half of the week is laughable. The ECMWF
keeps the region in a series of upper level lows and with them
wave after wave of precip while the GFS actually suggests a bit of
a dry period over the area. At this time...have opted to side more
with the GFS...although still keeping low end chance pops in the
extended...as the thought of having squishy shoes for the entire
upcoming week feels incredibly unappealing. SMR

&&

.AVIATION...An upper trough will persist around 130W-140W
through Monday. A strong surface low will move northward about
300 statue miles off the coast on Monday, maintaining a drier
offshore component to the low-level wind flow. Thick mid and high
level cloud cover this afternoon through Monday, but low- level
offshore flow will inhibit or prevent low clouds.

KSEA...Thick mid-high clouds expected through Monday, but cigs
will soon rise and remain above 050. Brief appearance of light
north wind expected late this afternoon and early evening, but
speeds remaining 5 knots or less. Haner

&&

.MARINE...A weak front is in the process of dissipating over the
inland waters this morning, resulting in an easing of wind at the
East Entrance. For all waters, a relative lull in the wind is
expected this afternoon.

A strong and mature 970 mb low will move northward near 130W and
west of Washington on Monday afternoon and evening, resulting in
high-end gales over the coastal waters on Monday PM, with gales
possible in the vicinity of the East Entrance on Tue AM. Another
surface low will develop offshore and move northward Wednesday
into Thursday morning with the associated front moving through the
waters later Wednesday into Thursday.   Haner

&&

.HYDROLOGY...River flooding is not expected for the next seven
days.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...None.
PZ...Gale Warning from 11 PM this evening to 9 AM PDT Tuesday for
     Coastal Waters From Cape Flattery To James Island 10 To 60
     Nm-Coastal Waters From James Island To Point Grenville 10
     To 60 Nm-Coastal Waters From Point Grenville To Cape
     Shoalwater 10 To 60 Nm.

     Gale Watch from Monday evening through Tuesday morning for
     Coastal Waters From Cape Flattery To James Island Out 10 Nm-
     Coastal Waters From James Island To Point Grenville Out 10
     Nm-Coastal Waters From Point Grenville To Cape Shoalwater
     Out 10 Nm-West Entrance U.S. Waters Strait Of Juan De Fuca.

     Small Craft Advisory from 6 PM this evening to 6 PM PDT Monday
     for Coastal Waters From Cape Flattery To James Island Out
     10 Nm-West Entrance U.S. Waters Strait Of Juan De Fuca.

     Small Craft Advisory from 6 AM to 6 PM PDT Monday for Coastal
     Waters From James Island To Point Grenville Out 10 Nm-
     Coastal Waters From Point Grenville To Cape Shoalwater Out
     10 Nm.

     Small Craft Advisory until noon PDT today for East Entrance U.S.
     Waters Strait Of Juan De Fuca-Northern Inland Waters
     Including The San Juan Islands.

&&

www.weather.gov/seattle

You can see an illustrated version of this discussion at
www.weather.gov/seattle/gafd/latest_webafd.html