Gale Warning 71, NWS Seattle, WA

902 
WHUS76 KSEW 152138
MWWSEW

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
238 PM PDT MON AUG 15 2016

PZZ131-132-160545-
/O.CON.KSEW.GL.W.0071.000000T0000Z-160816T1200Z/
CENTRAL U.S. WATERS STRAIT OF JUAN DE FUCA-
EAST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-
238 PM PDT MON AUG 15 2016

...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY...

* WINDS AND WAVES...WEST WIND RISING TO 25 TO 35 KNOTS LATE THIS
  AFTERNOON AND EVENING. WIND WAVES BUILDING TO 4 TO 6 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. 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.

&&

$$

PZZ170-173-176-160545-
/O.EXB.KSEW.SC.Y.0196.000000T0000Z-160817T0000Z/
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-
238 PM PDT MON AUG 15 2016

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM PDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM PDT TUESDAY. 

* WINDS AND WAVES...NORTHWEST WIND 15 TO 25 KNOTS. WIND WAVES 2
  TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ150-153-156-160545-
/O.EXA.KSEW.SC.Y.0196.000000T0000Z-160816T1200Z/
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-
238 PM PDT MON AUG 15 2016

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM PDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT UNTIL 5 AM PDT TUESDAY. 

* WINDS AND WAVES...NORTHWEST WIND 15 TO 25 KNOTS. WIND WAVES 2
  TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ133-160545-
/O.CON.KSEW.SC.Y.0196.000000T0000Z-160816T1200Z/
NORTHERN INLAND WATERS INCLUDING THE SAN JUAN ISLANDS-
238 PM PDT MON AUG 15 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY...

* WINDS AND WAVES...SOUTHWEST WIND RISING TO 15 TO 25 KNOTS LATE 
  THIS AFTERNOON AND EVENING. WINDS WAVES BUILDING TO 2 TO 4 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ134-160545-
/O.CON.KSEW.SC.Y.0196.000000T0000Z-160816T1200Z/
ADMIRALTY INLET-
238 PM PDT MON AUG 15 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY...

* WINDS AND WAVES...NORTHWEST WIND RISING TO 15 TO 25 KNOTS LATE 
  THIS AFTERNOON AND EVENING. WIND WAVES BUILDING TO 2 TO 4 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$


WWW.WEATHER.GOV

851 
WHUS76 KSEW 160342
MWWSEW

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
842 PM PDT MON AUG 15 2016

PZZ131-132-161145-
/O.CON.KSEW.GL.W.0071.000000T0000Z-160816T1200Z/
CENTRAL U.S. WATERS STRAIT OF JUAN DE FUCA-
EAST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-
842 PM PDT MON AUG 15 2016

...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY...

* WINDS AND WAVES...WEST WIND RISING TO 25 TO 35 KNOTS THIS
  EVENING AND CONTINUING OVERNIGHT. WIND WAVES BUILDING TO 4 TO 6
  FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. 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.

&&

$$

PZZ170-173-176-161145-
/O.CON.KSEW.SC.Y.0196.000000T0000Z-160817T0000Z/
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-
842 PM PDT MON AUG 15 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT TUESDAY...

* WINDS AND WAVES...NORTHWEST WIND 15 TO 25 KNOTS. WIND WAVES 2 TO 
  4 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ133-161145-
/O.CON.KSEW.SC.Y.0196.000000T0000Z-160816T1200Z/
NORTHERN INLAND WATERS INCLUDING THE SAN JUAN ISLANDS-
842 PM PDT MON AUG 15 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY...

* WINDS AND WAVES...SOUTHWEST WIND RISING TO 15 TO 25 KNOTS THIS
  EVENING AND CONTINUING OVERNIGHT. WIND WAVES BUILDING TO 2 TO 4
  FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ134-161145-
/O.CON.KSEW.SC.Y.0196.000000T0000Z-160816T1200Z/
ADMIRALTY INLET-
842 PM PDT MON AUG 15 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY...

* WINDS AND WAVES...NORTHWEST WIND RISING TO 15 TO 25 KNOTS THIS
  EVENING AND CONTINUING OVERNIGHT. WIND WAVES BUILDING TO 2 TO 4
  FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ150-153-156-161145-
/O.CON.KSEW.SC.Y.0196.000000T0000Z-160816T1200Z/
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-
842 PM PDT MON AUG 15 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY...

* WINDS AND WAVES...NORTHWEST WIND 15 TO 25 KNOTS. WIND WAVES 2 TO 
  4 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$


WWW.WEATHER.GOV

677 
WHUS76 KSEW 161009
MWWSEW

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
309 AM PDT TUE AUG 16 2016

PZZ131-132-161815-
/O.CAN.KSEW.GL.W.0071.000000T0000Z-160816T1200Z/
/O.EXB.KSEW.SC.Y.0196.000000T0000Z-160816T1500Z/
/O.NEW.KSEW.SC.Y.0199.160816T2100Z-160817T0900Z/
CENTRAL U.S. WATERS STRAIT OF JUAN DE FUCA-
EAST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-
309 AM PDT TUE AUG 16 2016

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM PDT THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM
PDT WEDNESDAY...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT UNTIL 8 AM PDT THIS MORNING. A SMALL
CRAFT ADVISORY HAS ALSO BEEN ISSUED FROM 2 PM THIS AFTERNOON TO
2 AM PDT WEDNESDAY. 

* WINDS AND WAVES...WEST TO NORTHWEST WIND 15 TO 25 KNOTS EARLY
  THIS MORNING BEFORE EASING TO 10 TO 20 KNOTS. WINDS ARE EXPECTED
  TO INCREASE AGAIN THIS AFTERNOON TO 15 TO 30 KNOTS AND CONTINUE
  INTO TONIGHT. WIND WAVES 2 TO 4 FEET EARLY...SUBSIDING TO 1 TO 3
  FT. WIND WAVES WILL REBUILD TO 2 TO 5 FT THIS AFTERNOON AND
  CONTINUE INTO TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ133-161815-
/O.CAN.KSEW.SC.Y.0196.000000T0000Z-160816T1200Z/
/O.NEW.KSEW.SC.Y.0199.160817T0300Z-160817T1800Z/
NORTHERN INLAND WATERS INCLUDING THE SAN JUAN ISLANDS-
309 AM PDT TUE AUG 16 2016

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 11 AM
PDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 11 AM PDT
WEDNESDAY. 

* WINDS AND WAVES...SOUTHWEST WIND RISING TO 15 TO 25 KNOTS THIS 
  EVENING AND CONTINUING OVERNIGHT. WIND WAVES BUILDING TO 2 TO 4 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ134-161115-
/O.CAN.KSEW.SC.Y.0196.000000T0000Z-160816T1200Z/
ADMIRALTY INLET-
309 AM PDT TUE AUG 16 2016

...SMALL CRAFT ADVISORY IS CANCELLED...

WIND SPEEDS HAVE FALLEN BELOW ADVISORY CRITERIA...THUS THE SMALL
CRAFT ADVISORY HAS BEEN CANCELLED.

$$

PZZ150-153-156-161815-
/O.CON.KSEW.SC.Y.0196.000000T0000Z-160816T1200Z/
/O.NEW.KSEW.SC.Y.0199.160817T0000Z-160817T1200Z/
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-
309 AM PDT TUE AUG 16 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM
PDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT
WEDNESDAY. 

* WINDS AND WAVES...NORTHWEST WIND 15 TO 25 KNOTS EARLY THIS
  MORNING BEFORE EASING TO 10 TO 20 KNOTS. WINDS WILL INCREASE TO
  15 TO 25 KNOTS AGAIN THIS EVENING AND CONTINUE INTO EARLY
  WEDNESDAY MORNING. WIND WAVES 3 TO 5 FEET EARLY...SUBSIDING TO 2
  TO 4 FT BEFORE REBUILDING TO 3 TO 5 FEET THIS EVENING AND INTO
  WEDNESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ130-161815-
/O.EXB.KSEW.SC.Y.0196.160816T2100Z-160817T0600Z/
WEST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-
309 AM PDT TUE AUG 16 2016

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM
PDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM PDT
THIS EVENING. 

* WINDS AND WAVES...NORTHWEST WIND INCREASING TO 15 TO 25 KNOTS
  THIS AFTERNOON WITH WIND WAVES INCREASING TO 2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ170-173-176-161815-
/O.EXT.KSEW.SC.Y.0196.000000T0000Z-160817T1800Z/
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-
309 AM PDT TUE AUG 16 2016

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT WEDNESDAY...

* WINDS AND WAVES...NORTHWEST WIND 15 TO 30 KNOTS. WIND WAVES 3
  TO 6 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS ARE
EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS
SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$


WWW.WEATHER.GOV

Area Forecast Discussion
National Weather Service Seattle WA
845 AM PDT MON AUG 15 2016

.SYNOPSIS...High pressure aloft will bring dry and mostly sunny
weather this week. Temperatures will gradually warm through the
week as low level onshore flow eases and eventually switches to
offshore.

&&

.SHORT TERM...A broad upper ridge will bring dry and mostly sunny
weather to the region through Wednesday. Highs will be a few
degrees above normal each day but weak low level onshore flow will
keep highs somewhat in check. There should be some shallow night
and morning low clouds at the coast and partially inland through
the Chehalis gap and down the Strait of Juan De Fuca but these
clouds will burn off each day. Schneider

.LONG TERM...Previous discussion...The weather will turn hot
Thursday through Saturday. An upper level ridge over the NE
Pacific along 140W will begin building on Wednesday, expanding
northward and eastward over central B.C. as well as over the
Pacific Northwest. 500 MB heights over W WA will rise to 5880
meters to 5910 meters Thursday and Friday, before dropping back to
around 5850 meters on Saturday. However the most important change
caused by the shift of the upper level ridge will be pushing the
coastal surface ridge inland over central and southern B.C. This
will allow dry NE-E offshore flow to develop over W WA Thursday
and Friday, which should push high temperatures over parts of W WA
into the lower to mid 90s. Friday will probably be the hottest
day. The air mass will be even drier with low relative humidities.
See the Fire Weather discussion below.

On Saturday, the B.C. surface ridge shifts E and the upper level
ridge weakens a little. This will allow weak onshore flow to return
Saturday afternoon and evening. There should be some cooling on the
coast and part way inland during Saturday afternoon, but not as much
over the rest of the interior. Marine air will reach the interior
Saturday night for more significant cooling on Sunday. Sunday's
highs will probably top out in the lower to mid 80s. Kam

&&

.AVIATION...An upper level ridge over the Pac NW will maintain a
dry and stable air mass across Western Washington today. The flow
aloft is westerly. Low level stratus clouds will burn back to the
coast this afternoon with VFR conditions expected. Onshore flow
will bring low clouds inland overnight once again. Expect IFR to
MVFR cigs through much of the lowlands Tuesday morning. 33

KSEA...Patchy, shallow low clouds in the vicinity this morning,
but should burn off by 18z. Light northerly winds at the surface
with VFR conditions this afternoon. 33

&&

.MARINE...High pressure over the NE Pacific will maintain onshore
flow across Western WA. Westerly winds will increase through the
central and eastern Strait of Juan de Fuca late this afternoon and
evening - a Gale Warning is in effect. Weak to moderate onshore
flow will continue through the middle of this week. The flow will
turn offshore Thursday and Friday as low pressure forms along the
coast. 33

&&

.FIRE WEATHER...Forecast models continue to show the potential for
the season's first period of critical fire weather Wednesday
night through Friday. The concern will be hot temperatures,
moderate breezes, and low relative humidity as high pressure
builds over British Columbia. The hot and dry weather will come
after about 10 days with no rainfall.

On Wednesday night, surface high pressure will develop over the
central interior of British Columbia. By sunrise on Thursday, the
12z GFS forecasts the BLI-CYWL pressure gradient to peak near at -9
mb. The ECMWF is only slightly weaker at -8 mb.

In the summer months, these forecast pressure gradients cause warm
and dry air from the interior of British Columbia to compress, warm
and dry further as it flows down the Fraser valley into the
Bellingham area then down into the rest of Western Washington.
Dewpoint temperatures will fall into the 40s on Thursday and
Friday and high temperatures will rise well into the 80s to mid
90s. Afternoon relative humidity values should fall into the 15-30
percent range over the lowlands both Thursday and Friday. In
combination with sustained N-NE winds of 10-15 mph or more on
Thursday, then E winds near the Cascades on Friday, this is likely
to become the first Red Flag wind/RH episode of the season in
western Washington. Any fires that form under these conditions,
both roadside fires and forest fires, can burn intensely and
spread quickly.

Winds are expected to relax Friday night then turn onshore on
Saturday, ushering in cooler marine air from the Pacific. Albrecht

&&

.SEW Watches/Warnings/Advisories...
WA...None.
PZ...Gale Warning until 5 AM PDT Tuesday for Central U.S. Waters
     Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of
     Juan De Fuca.

     Small Craft Advisory until 5 AM PDT Tuesday for Admiralty Inlet-
     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