Winter Storm Warning 3, NWS Seattle, WA

449 
WWUS46 KSEW 090444
WSWSEW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
844 PM PST SAT FEB 8 2014

WAZ505-091200-
/O.EXB.KSEW.WW.Y.0009.140209T0500Z-140209T1200Z/
/O.CON.KSEW.WS.W.0003.000000T0000Z-140209T1200Z/
EAST PUGET SOUND LOWLANDS-
844 PM PST SAT FEB 8 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY
FOR THE PIERCE COUNTY PORTION OF THE ZONE...
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SUNDAY FOR THE
KING AND SNOHOMISH COUNTY PORTIONS OF THE ZONE...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 4 AM PST
SUNDAY.

* SOME AFFECTED LOCATIONS...BELLEVUE...GOLD BAR...MONROE...NORTH
  BEND...EATONVILLE...BONNEY LAKE.

* TIMING...SNOW THIS EVENING WILL TAPER OFF FROM THE WEST AFTER
  MIDNIGHT.

* ACCUMULATIONS...1 TO 3 INCHES KING AND SNOHOMISH COUNTY PORTIONS
  AND 3 TO 6 INCHES PIERCE COUNTY PORTION.

* MAIN IMPACT...SLIPPERY SNOW COVERED ROADS ARE LIKELY TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW IS ISSUED FOR THE LOWLANDS
WHEN 1 TO 3 INCHES OF SNOW IS LIKELY TO FALL WITHIN 12 HOURS.

A WINTER STORM WARNING FOR SNOW IS ISSUED WHEN 4 INCHES OR MORE
IS LIKELY WITHIN 12 HOURS.

&&

$$

WAZ504-509-512-091200-
/O.CON.KSEW.WS.W.0003.000000T0000Z-140209T1200Z/
SOUTHWEST INTERIOR-TACOMA AREA-LOWER CHEHALIS VALLEY AREA-
844 PM PST SAT FEB 8 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY...

* SOME AFFECTED LOCATIONS...TACOMA...LAKEWOOD...EATONVILLE... 
  SHELTON...MONTESANO...AND ABERDEEN.

* TIMING...SNOW THIS EVENING WILL TAPER OFF FROM THE WEST AFTER 
  AFTER 2 AM.

* SNOW ACCUMULATIONS...3 TO 6 INCHES.

* MAIN IMPACT...EXPECT SLIPPERY AND SNOW COVERED ROADWAYS IN THE 
  WARNING AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING IS ISSUED FOR THE LOWLANDS WHEN 4 INCHES
OF SNOW OR MORE IS LIKELY WITHIN 12 HOURS.

&&

$$

WAZ507-508-091200-
/O.EXA.KSEW.WW.Y.0009.000000T0000Z-140209T1200Z/
EVERETT AND VICINITY-SEATTLE/BREMERTON AREA-
844 PM PST SAT FEB 8 2014

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 4 AM PST
SUNDAY.

* SOME AFFECTED LOCATIONS...SEATTLE...BREMERTON...EVERETT.

* TIMING...SNOW THIS EVENING WILL TAPER OFF FROM THE WEST AFTER 
  MIDNIGHT.

* ACCUMULATIONS...1 TO 3 INCHES OF SNOW IS LIKELY.

* MAIN IMPACT...SLIPPERY SNOW COVERED ROADS ARE LIKELY TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW IS ISSUED FOR THE LOWLANDS
WHEN 1 TO 3 INCHES OF SNOW IS LIKELY TO FALL WITHIN 12 HOURS.

&&

$$

WAZ511-517-091200-
/O.CON.KSEW.WW.Y.0009.000000T0000Z-140209T1200Z/
HOOD CANAL AREA-CENTRAL COAST-
844 PM PST SAT FEB 8 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
SUNDAY...

* SOME AFFECTED LOCATIONS...SHELTON...HOQUIAM...WESTPORT...OCEAN 
  SHORES.

* TIMING...SNOW THIS EVENING WILL TAPER OFF FROM THE WEST AFTER 
  MIDNIGHT.

* ACCUMULATIONS...1 TO 3 INCHES OF SNOW IS LIKELY.

* MAIN IMPACT...SLIPPERY SNOW COVERED ROADS ARE LIKELY TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW IS ISSUED FOR THE LOWLANDS
WHEN 1 TO 3 INCHES OF SNOW IS LIKELY TO FALL WITHIN 12 HOURS.

&&

$$

ALBRECHT
WWW.WEATHER.GOV/SEATTLE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
530 PM PST SAT FEB 8 2014

.SYNOPSIS...A WEATHER SYSTEM WILL BRING SOME SNOW TO WESTERN
WASHINGTON TONIGHT. THE AIR WILL WARM OVER WESTERN WASHINGTON SUNDAY
AND SUNDAY NIGHT. A MILD WET WEATHER REGIME WILL BE IN PLACE THROUGH
NEXT WEEK.

&&

.SHORT TERM...UPDATE...A BAND OF LIGHT TO MODERATE SNOW HAS SHIFTED
NORTHWARD INTO GRAYS HARBOR COUNTY. RADAR AND THE RUC13 MODEL SHOW
1-3 INCH ACCUMULATIONS  MAKING IT NORTHWARD TO THE HOOD CANAL AREA
AND TO ABOUT THE PIERCE-KING COUNTY LINE. A WINTER WEATHER ADVISORY
WAS ISSUED FOR THE TACOMA AREA...THE HOOD CANAL AREA...THE LOWER
CHEHALIS VALLEY...AND THE CENTRAL WASHINGTON COAST UNTIL 4 AM AS A
RESULT. AT THIS TIME IT APPEARS THAT VERY STRONG EASTERLY PRESSURE
GRADIENTS WILL KEEP THE HEAVIER SNOW FROM MOVING INTO KING OR
SNOHOMISH COUNTIES...SO EXPECT LESS THAN AN INCH AT MOST THERE. WILL
BE MONITORING THE SOUTHERN PART OF THE EAST PUGET SOUND LOWLANDS FOR
THE THREAT OF ADVISORY LEVEL ACCUMULATIONS THIS EVENING...BUT THE
EASTERLY FLOW SHOULD CUT BACK AMOUNTS. ALBRECHT

FROM THE AFTERNOON SHORT TERM DISCUSSION...A WEATHER SYSTEM IS
MOVING INTO WRN WA THIS AFTERNOON. SATELLITE IMAGERY SHOWS
DEVELOPMENT WITH CLOUD TOPS COOLING AND MANY LOCATIONS IN WESTERN
WILL FINALLY SEE SOME SNOWFALL TONIGHT. AT 3PM THE SEA-YKM GRADIENT
IS ARND -9MB AND THE OLM-BLI GRADIENT IS ARND -4MB SO I DO NOT HAVE
A GREAT DEAL OF SNOWFALL IN THE FORECAST AND ONLY HAVE A CHANCE IN
THE NORTH...BUT OVERNIGHT THE GRADIENTS WILL GIVE OUT AND THE WARM
ADVECTION AND MOISTURE WILL FINALLY OVERWHELM THE LOW LEVEL DRY AIR.
AT 3PM SNOW IS FALLING AROUND TOLEDO AND SHOULD ARRIVE BY EARLY THIS
EVENING IN THE SOUTH SOUND. SNOW FALLING INTO THIS AIR MASS WILL SEE
A GOOD EVAPORATIVE COOLING/DEW POINT COOLING EFFECT...DEWPOINTS THIS
AFTERNOON AVERAGE AROUND 20 DEGREES...LOWER IN THE NORTH. ON SUNDAY
IT WILL WARM UP AND AROUND SUNDAY AFTERNOON OR EVENING ANOTHER SURGE
OF WARMER AIR WILL TAKE 850MB TEMPS OUT OF THE RANGE WHERE SNOW IS A
CONCERN AT ALL IN THE LOWLANDS. I DO NOT SEE MUCH TROUBLE SCOURING
OUT THE LOW LEVEL COLD AIR IN WESTERN WA...EXCEPT FOR THE APPROACHES
TO THE CASCADE PASSES. WET MILD WEATHER IS ON TAP FOR ALL OF NEXT
WEEK AND IT IS LIKELY TO BE BREEZY AT TIMES.

.LONG TERM...PERIODS OF RAIN AND BREEZY WEATHER ARE ON TAP FOR THE
LOWLANDS THROUGH NEXT WEEK. FOR THE MOUNTAINS THE SNOW LEVEL WILL BE
UP AND DOWN...BUT IT OUGHT TO AVERAGE AROUND 3000 FEET. A LOOK AT
THE LATEST 18Z GFS DOES NOT SHOW ANY WINDSTORMS. THE STRONGEST
GRADIENT I SEE IN THE 12Z ECMWF IS ASSOCIATED WITH A FRONTAL WAVE
THAT MOVES INTO WESTERN OREGON WEDNESDAY NIGHT SO IF THAT WAVE WERE
STRONGER AND A BIT FARTHER NORTH THAT MIGHT BE AN INTERESTING STORM
BUT THE GFS IS MUCH WEAKER WITH THAT FRONTAL WAVE AND TIMING ANY
SHORTWAVES AND FRONTS IS NOT POSSIBLE AT THIS LEAD TIME.

&&

.HYDROLOGY...RIVER FLOODING IS NOT EXPECTED FOR THE NEXT 7 DAYS.

&&

.AVIATION...MODERATE WESTERLY FLOW ALOFT WITH LIGHT TO MODERATE LOW
LEVEL NE FLOW. A 1010 MB SURFACE LOW WILL TRACK INTO THE CENTRAL/N
OREGON COAST THIS EVENING...THEN DISSIPATE. DEEP MOISTURE WILL
SPREAD N INTO THE SRN HALF OF WRN WA THIS EVENING. HIGH LEVEL
MOISTURE N PORTION. LIGHT SNOW WILL DEVELOP OVER SW WA THIS
EVENING...REACHING KHQM AND KOLM 03-05Z...THEN REACHING KSEA/KBFI
AFTER 06Z. ACCUMULATIONS OF 1-2 INCHES FROM KHQM TO KOLM SWD AND A
TRACE TO ONE HALF INCH POSSIBLE UP TO KSEA/KBFI BY SUNRISE SUNDAY
MORNING. SCATTERED LIGHT SNOW SHOWERS CHANGING OVER TO RAIN SHOWERS
SUNDAY AFTERNOON. VFR CIGS FROM KPAE NWD...AND MVFR DEVELOPING S OF
KPAE TONIGHT/SUNDAY.

KSEA...LATEST COMPUTER MODELS INDICATE LIGHT SNOW WILL DEVELOP AFTER
06Z AND CONTINUE AT TIMES THROUGH SUNRISE SUNDAY MORNING (A 60
PERCENT CHANCE). A TRACE TO ONE INCH OF SNOW IS POSSIBLE WITH
TEMPERATURES NEAR OR JUST BELOW FREEZING AT THE SURFACE. A CHANCE
OVER FROM SNOW SHOWERS TO RAIN SHOWERS IS EXPECTED SUNDAY AFTERNOON
WITH TEMPERATURES RISING WELL ABOVE FREEZING. VFR CIGS WITH MID/
HIGH CLOUDS....THEN MVFR CIGS DEVELOP AFTER 06Z TONIGHT. NE WIND
6-12 KT BECOMING SE WIND 5-8 KT AFTER 16Z. DTM

&&

.MARINE...HIGH PRES WILL REMAIN OVER BRITISH COLUMBIA AND E OF THE
CASCADES TODAY. LOW LEVEL E-NE FLOW WILL CONTINUE TONIGHT AHEAD OF
A WEAK WARM FRONT IS EXPECTED TO MOVE N ACROSS THE AREA SUNDAY
MORNING. GALES ARE EXPECTED NEAR THE W ENTRANCE TO THE STRAIT WITH
SMALL CRAFT ADVISORY COASTAL WATERS/CENTRAL STRAIT/ AND N INLAND
WATERS.

A STRONGER FRONTAL SYSTEM WILL IMPACT THE AREA ON MON. THIS WILL BE
FOLLOWED BY AN EVEN STRONGER SYSTEM ON TUE. THE WEATHER PATTERN OVER
THE PACIFIC NORTHWEST WILL BECOME MORE ACTIVE AND TYPICAL FOR THIS
TIME OF THE YEAR THIS UPCOMING WEEK. DTM

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...WINTER WEATHER ADVISORY SOUTHWEST INTERIOR...TACOMA AREA...
      HOOD CANAL AREA...LOWER CHEHALIS VALLEY...AND CENTRAL COAST
      UNTIL 4 AM SUN.
PZ...SMALL CRAFT ADVISORY MOST COASTAL WATERS...CENTRAL STRAIT
      OF JUAN DE FUCA...AND NORTH INLAND WATERS.
     GALE WARNING NORTH INNER COAST ZONE...AND WEST ENTRANCE TO THE
      STRAIT OF JUAN DE FUCA.

&&

WWW.WEATHER.GOV/SEATTLE

FOR THE GRAPHICAL AFD...VISIT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
711 PM PST SAT FEB 08 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0658 PM     SNOW             5 SE FREDERICKSON       47.03N 122.29W
02/08/2014  M2.0 INCH        PIERCE             WA   TRAINED SPOTTER

            2 INCHES IN 1.5 HOURS ENDING AT 630 PM. SNOWING LIGHTLY.

0658 PM     SNOW             4 SW PUYALLUP           47.13N 122.34W
02/08/2014  M1.0 INCH        PIERCE             WA   TRAINED SPOTTER

            1 INCH IN 30 MINUTES ENDING 630 PM. SNOWING LIGHTLY.

0658 PM     SNOW             6 WNW TENINO            46.88N 122.96W
02/08/2014  M2.2 INCH        THURSTON           WA   TRAINED SPOTTER

            SNOWFALL ENDING 630 PM. SNOWING LIGHTLY.

0658 PM     SNOW             4 SSE PUYALLUP          47.13N 122.27W
02/08/2014  M1.5 INCH        PIERCE             WA   TRAINED SPOTTER

            1.5 INCHES IN 1 HOUR ENDING 630 PM.

&&

ALBRECHT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
718 PM PST SAT FEB 08 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0658 PM     SNOW             NE NAPAVINE             46.58N 122.90W
02/08/2014  M3.0 INCH        LEWIS              WA   TRAINED SPOTTER

            3 INCHES OF SNOW SINCE 4 PM. SNOWING MODERATELY.

&&

ALBRECHT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
724 PM PST SAT FEB 08 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0658 PM     SNOW             4 SSE OLYMPIA           47.00N 122.86W
02/08/2014  M3.7 INCH        THURSTON           WA   TRAINED SPOTTER

            3.7 INCHES SINCE 505 PM. SNOWING BUT WITH SMALLER FLAKES.

&&

ALBRECHT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
726 PM PST SAT FEB 08 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0658 PM     SNOW             5 NNW GRAND MOUND       46.88N 123.04W
02/08/2014  M0.0 INCH        THURSTON           WA   TRAINED SPOTTER

            2.5 INCHES IN 3 HRS. SNOWING MODERATELY.

&&

ALBRECHT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
730 PM PST SAT FEB 08 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0658 PM     SNOW             4 NNW EATONVILLE        46.93N 122.30W
02/08/2014  M3.5 INCH        PIERCE             WA   TRAINED SPOTTER

            3.5 INCHES SINCE 5 PM. SNOWING HARD.

&&

ALBRECHT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
746 PM PST SAT FEB 08 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0745 PM     HEAVY SNOW       3 WNW GRAND MOUND       46.83N 123.07W
02/08/2014  M3.3 INCH        THURSTON           WA   TRAINED SPOTTER

            1.3 FELL IN ONE HOUR. STARTED SNOWING AT 5 PM PST.

&&

WWW.WEATHER.GOV