Winter Storm Warning 5, NWS Seattle, WA

251 
WWUS46 KSEW 051148
WSWSEW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
348 AM PST SUN FEB 5 2017

WAZ569-060000-
/O.CON.KSEW.WS.W.0005.170205T1200Z-170206T1200Z/
CASCADES OF PIERCE AND LEWIS COUNTIES-
348 AM PST SUN FEB 5 2017

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

* SNOW ACCUMULATIONS...STEADY LIGHT SNOW THROUGH SUNDAY NIGHT 
  WILL BRING ANOTHER 12 TO 24 INCHES OF NEW SNOW. 

* SOME AFFECTED LOCATIONS...PARADISE ON MOUNT RAINIER AND WHITE 
  PASS. 

* TIMING...THROUGH 4 AM PST MONDAY MORNING.

* SNOW LEVEL...1500 FEET TO 2000 FEET.

* MAIN IMPACT...SLIPPERY SNOW COVERED ROADS WILL CAUSE 
  CHALLENGING TRAVEL CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL... KEEP AN EXTRA FLASHLIGHT...
FOOD... AND WATER N YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WAZ559-060000-
/O.EXA.KSEW.WW.Y.0009.170206T0000Z-170207T0000Z/
BREMERTON AND VICINITY-
348 AM PST SUN FEB 5 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
4 PM PST MONDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 PM PST MONDAY.

* SNOW ACCUMULATIONS...1 TO 3 INCHES OF SNOWFALL IS POSSIBLE.

* SOME AFFECTED LOCATIONS...BREMERTON...SILVERDALE...POULSBO AND
  PORT ORCHARD.

* TIMING...RAIN IS EXPECTED TO START TRANSITIONING OVER TO SNOW 
  LATE THIS AFTERNOON AND EARLY THIS EVENING...BECOMING MOSTLY 
  SNOW AFTER 10 PM TONIGHT AND CONTINUING INTO EARLY MONDAY 
  AFTERNOON. 

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES... AND USE CAUTION WHILE
DRIVING.

&&

$$

WAZ001-503-504-506-507-509>512-514>517-555-556-558-060000-
/O.CON.KSEW.WW.Y.0009.170206T0000Z-170207T0000Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-SOUTHWEST INTERIOR-
WESTERN SKAGIT COUNTY-EVERETT AND VICINITY-TACOMA AREA-
ADMIRALTY INLET AREA-HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-
EASTERN STRAIT OF JUAN DE FUCA-WESTERN STRAIT OF JUAN DE FUCA-
NORTH COAST-CENTRAL COAST-EAST PUGET SOUND LOWLANDS-
BELLEVUE AND VICINITY-SEATTLE AND VICINITY-
348 AM PST SUN FEB 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 PM PST MONDAY...

* SNOW ACCUMULATIONS...1 TO 3 INCHES OF SNOWFALL IS POSSIBLE.

* SOME AFFECTED LOCATIONS...SEATTLE...EVERETT...TACOMA...OLYMPIA 
  AND MOST LOWLAND LOCATIONS IN WESTERN WASHINGTON. 

* TIMING...RAIN IS EXPECTED TO START TRANSITIONING OVER TO SNOW 
  LATE THIS AFTERNOON AND EARLY THIS EVENING...BECOMING MOSTLY 
  SNOW AFTER 10 PM TONIGHT AND CONTINUING INTO EARLY MONDAY 
  AFTERNOON. 

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES... AND USE CAUTION WHILE
DRIVING.

&&

$$

WWW.WEATHER.GOV/SEATTLE

810 
WWUS46 KSEW 051826
WSWSEW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1026 AM PST SUN FEB 5 2017

WAZ507-509-555-556-558-559-060230-
/O.UPG.KSEW.WW.Y.0009.170206T0000Z-170207T0000Z/
/O.EXB.KSEW.WS.W.0005.170206T0200Z-170207T0000Z/
EVERETT AND VICINITY-TACOMA AREA-EAST PUGET SOUND LOWLANDS-
BELLEVUE AND VICINITY-SEATTLE AND VICINITY-BREMERTON AND VICINITY-
1026 AM PST SUN FEB 5 2017

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 4 PM
PST MONDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER STORM
WARNING FOR THE CENTRAL PUGET SOUND REGION FOR SNOW...WHICH IS IN
EFFECT FROM 6 PM THIS EVENING TO 4 PM PST MONDAY. THE WINTER
WEATHER ADVISORY IS NO LONGER IN EFFECT.

* SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOWFALL IS POSSIBLE.
  LOCALIZED ACCUMULATIONS UP TO 8 INCHES ARE POSSIBLE CLOSE TO THE
  CASCADES.

* SOME AFFECTED
  LOCATIONS...SEATTLE...EVERETT...TACOMA...BREMERTON...AND MOST
  LOWLAND LOCATIONS EAST OF PUGET SOUND.

* TIMING...SNOW IS EXPECTED TO INCREASE THIS EVENING AND CONTINUE
  OFF AND ON THROUGH EARLY MONDAY AFTERNOON. 

* MAIN IMPACT...ROADS AND SIDEWALKS WILL BE SNOW COVERED AND VERY
  SLIPPERY. TRAVEL WILL BE VERY DIFFICULT...ESPECIALLY DURING
  THE MONDAY MORNING COMMUTE. DELAYS MAY BE SIGNIFICANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WAZ504-511-512-060230-
/O.UPG.KSEW.WW.Y.0009.170206T0000Z-170207T0000Z/
/O.EXB.KSEW.WS.W.0005.170206T0200Z-170207T0000Z/
SOUTHWEST INTERIOR-HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-
1026 AM PST SUN FEB 5 2017

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 4 PM
PST MONDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER STORM
WARNING FOR THE SOUTHWEST INTERIOR AND THE HOOD CANAL AREA FOR
SNOW...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 4 PM PST
MONDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.

* SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOWFALL IS POSSIBLE.

* SOME AFFECTED LOCATIONS...CHEHALIS...OLYMPIA...SHELTON.

* TIMING...SNOW IS EXPECTED TO INCREASE THIS EVENING AND CONTINUE
  OFF AND ON THROUGH EARLY MONDAY AFTERNOON. 

* MAIN IMPACT...ROADS AND SIDEWALKS WILL BE SNOW COVERED AND VERY
  SLIPPERY. TRAVEL WILL BE VERY DIFFICULT...ESPECIALLY DURING
  THE MONDAY MORNING COMMUTE. DELAYS MAY BE SIGNIFICANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WAZ569-060230-
/O.EXT.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
CASCADES OF PIERCE AND LEWIS COUNTIES-
1026 AM PST SUN FEB 5 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY...

THE WINTER STORM WARNING REMAINS IN EFFECT FOR THE CASCADES IN
KING AND SNOHOMISH COUNTIES FOR SNOW...WHICH IS IN EFFECT UNTIL 4
PM PST MONDAY.

* SNOW ACCUMULATIONS...STEADY LIGHT SNOW THROUGH SUNDAY NIGHT WILL
  BRING ANOTHER 20 TO 30 INCHES OF NEW SNOW.

* SOME AFFECTED LOCATIONS...PARADISE ON MOUNT RAINIER AND WHITE 
  PASS. 

* TIMING...THROUGH 4 AM PST MONDAY MORNING.

* SNOW LEVEL...AROUND 1500 FEET TODAY LOWERING BELOW 1000 FEET
  TONIGHT AND MONDAY.

* MAIN IMPACT...SLIPPERY SNOW COVERED ROADS WILL CAUSE 
  CHALLENGING TRAVEL CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL... KEEP AN EXTRA FLASHLIGHT...
FOOD... AND WATER N YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WAZ568-060230-
/O.EXB.KSEW.WW.Y.0009.170205T1826Z-170207T0000Z/
CASCADES OF SNOHOMISH AND KING COUNTIES-
1026 AM PST SUN FEB 5 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM PST MONDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER
WEATHER ADVISORY FOR THE CASCADES IN KING AND SNOHOMISH COUNTIES
FOR SNOW...WHICH IS IN EFFECT UNTIL 4 PM PST MONDAY.

* SNOW ACCUMULATIONS...10 TO 20 INCHES OF SNOWFALL IS POSSIBLE
  THROUGH MONDAY AFTERNOON.

* SOME AFFECTED LOCATIONS...STEVENS PASS AND SNOQUALMIE PASS.

* TIMING...THROUGH MONDAY AFTERNOON.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES... AND USE CAUTION WHILE
DRIVING.

&&

$$

WAZ001-503-506-510-514>517-060230-
/O.EXT.KSEW.WW.Y.0009.170206T0200Z-170207T0000Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-EASTERN STRAIT OF JUAN DE FUCA-
WESTERN STRAIT OF JUAN DE FUCA-NORTH COAST-CENTRAL COAST-
1026 AM PST SUN FEB 5 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT FOR THE WASHINGTON
COAST...THE STRAIT OF JUAN DE FUCA...AND THE NORTHWEST INTERIOR FROM
6 PM THIS EVENING TO 4 PM PST MONDAY...

* SNOW ACCUMULATIONS...UP TO 3 INCHES OF SNOWFALL IS POSSIBLE.

* SOME AFFECTED LOCATIONS...BELLINGHAM...OAK HARBOR...PORT
  TOWNSEND...SEQUIM...FORKS...HOQUIAM. 

* TIMING...RAIN IS EXPECTED TO START TRANSITIONING OVER TO SNOW
  TONIGHT...BECOMING MOSTLY SNOW AFTER 10 PM TONIGHT AND
  CONTINUING INTO EARLY MONDAY AFTERNOON.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS WILL CREATE
  CHALLENGING TRAVEL CONDITIONS. THE MONDAY MORNING COMMUTE MAY BE
  AFFECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES... AND USE CAUTION WHILE
DRIVING.

&&

$$

WWW.WEATHER.GOV/SEATTLE

280 
WWUS46 KSEW 052303
WSWSEW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
303 PM PST SUN FEB 5 2017

WAZ514-060700-
/O.UPG.KSEW.WW.Y.0009.170206T0200Z-170207T0000Z/
/O.EXA.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
EASTERN STRAIT OF JUAN DE FUCA-
303 PM PST SUN FEB 5 2017

...WINTER STORM WARNING IN EFFECT UNTIL 4 PM PST MONDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER STORM
WARNING FOR THE EASTERN STRAIT OF JUAN DE FUCA FOR SNOW...WHICH
IS IN EFFECT UNTIL 4 PM PST MONDAY. THE WINTER WEATHER ADVISORY IS
NO LONGER IN EFFECT.

* SNOW ACCUMULATIONS...2 TO 5 INCHES OF SNOWFALL IS POSSIBLE
  THROUGH MONDAY WITH THE HIGHER AMOUNTS CLOSER TO THE OLYMPICS.

* SOME AFFECTED LOCATIONS...PORT ANGELES...SEQUIM. 

* TIMING...RAIN IS EXPECTED TO START TRANSITIONING OVER TO SNOW 
  TONIGHT...BECOMING MOSTLY SNOW AFTER 10 PM TONIGHT AND 
  CONTINUING INTO EARLY MONDAY AFTERNOON. 

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS WILL CREATE 
  CHALLENGING TRAVEL CONDITIONS. THE MONDAY MORNING COMMUTE MAY 
  BE AFFECTED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND
WATER N YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WAZ504-507-509-555-556-558-559-060700-
/O.EXT.KSEW.WS.W.0005.170205T2303Z-170207T0000Z/
SOUTHWEST INTERIOR-EVERETT AND VICINITY-TACOMA AREA-
EAST PUGET SOUND LOWLANDS-BELLEVUE AND VICINITY-
SEATTLE AND VICINITY-BREMERTON AND VICINITY-
303 PM PST SUN FEB 5 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOWFALL IS POSSIBLE. 
  LOCALIZED ACCUMULATIONS UP TO 8 INCHES ARE POSSIBLE CLOSE TO 
  THE CASCADES. 

* SOME AFFECTED LOCATIONS...SEATTLE...EVERETT...TACOMA...
  BREMERTON...OLYMPIA...CHEHALIS AND MOST LOWLAND LOCATIONS EAST
  AND SOUTHEAST OF PUGET SOUND.

* TIMING...SNOW IS EXPECTED TO INCREASE THIS EVENING AND 
  CONTINUE OFF AND ON THROUGH EARLY MONDAY AFTERNOON. 

* MAIN IMPACT...ROADS AND SIDEWALKS WILL BE SNOW COVERED AND 
  VERY SLIPPERY. TRAVEL WILL BE VERY DIFFICULT...ESPECIALLY 
  DURING THE MONDAY MORNING COMMUTE. DELAYS MAY BE SIGNIFICANT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL... KEEP AN EXTRA FLASHLIGHT...
FOOD... AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WAZ511-512-060700-
/O.EXT.KSEW.WS.W.0005.170205T2303Z-170207T0000Z/
HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-
303 PM PST SUN FEB 5 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOWFALL IS POSSIBLE WITH
  ISOLATED SPOTS UP TO 5 INCHES.

* SOME AFFECTED LOCATIONS...SHELTON...ELMA.

* TIMING...SNOW IS EXPECTED TO INCREASE THIS EVENING AND 
  CONTINUE OFF AND ON THROUGH EARLY MONDAY AFTERNOON. 

* MAIN IMPACT...ROADS AND SIDEWALKS WILL BE SNOW COVERED AND 
  VERY SLIPPERY. TRAVEL WILL BE VERY DIFFICULT...ESPECIALLY 
  DURING THE MONDAY MORNING COMMUTE. DELAYS MAY BE SIGNIFICANT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL... KEEP AN EXTRA FLASHLIGHT...
FOOD... AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WAZ569-060700-
/O.CON.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
CASCADES OF PIERCE AND LEWIS COUNTIES-
303 PM PST SUN FEB 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW ACCUMULATIONS...STEADY LIGHT SNOW THROUGH SUNDAY NIGHT WILL
  BRING ANOTHER 16 TO 30 INCHES OF NEW SNOW.

* SOME AFFECTED LOCATIONS...PARADISE ON MOUNT RAINIER AND WHITE 
  PASS. 

* TIMING...THROUGH 4 AM PST MONDAY MORNING.

* SNOW LEVEL...AROUND 1500 FEET TODAY LOWERING BELOW 1000 FEET 
  TONIGHT AND MONDAY. 

* MAIN IMPACT...SLIPPERY SNOW COVERED ROADS WILL CAUSE 
  CHALLENGING TRAVEL CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL... KEEP AN EXTRA FLASHLIGHT...
FOOD... AND WATER N YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WAZ001-503-506-510-515>517-060700-
/O.CON.KSEW.WW.Y.0009.170206T0200Z-170207T0000Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-WESTERN STRAIT OF JUAN DE FUCA-NORTH COAST-
CENTRAL COAST-
303 PM PST SUN FEB 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 4 PM PST MONDAY...

* SNOW ACCUMULATIONS...UP TO 3 INCHES OF SNOWFALL IS POSSIBLE.
  ISOLATED SPOTS CLOSE TO THE OLYMPICS COULD SEE UP TO 5 INCHES.

* SOME AFFECTED LOCATIONS...BELLINGHAM...OAK HARBOR...PORT
  TOWNSEND...FORKS...HOQUIAM.

* TIMING...RAIN IS EXPECTED TO START TRANSITIONING OVER TO SNOW 
  TONIGHT...BECOMING MOSTLY SNOW AFTER 10 PM TONIGHT AND 
  CONTINUING INTO EARLY MONDAY AFTERNOON. 

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS WILL CREATE 
  CHALLENGING TRAVEL CONDITIONS. THE MONDAY MORNING COMMUTE MAY 
  BE AFFECTED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES... AND USE CAUTION WHILE
DRIVING.

&&

$$

WAZ568-060700-
/O.CON.KSEW.WW.Y.0009.000000T0000Z-170207T0000Z/
CASCADES OF SNOHOMISH AND KING COUNTIES-
303 PM PST SUN FEB 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
MONDAY...

* SNOW ACCUMULATIONS...10 TO 17 INCHES OF SNOWFALL IS POSSIBLE
  THROUGH MONDAY AFTERNOON.

* SOME AFFECTED LOCATIONS...STEVENS PASS AND SNOQUALMIE PASS.

* TIMING...THROUGH MONDAY AFTERNOON.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES... AND USE CAUTION WHILE
DRIVING.

&&

$$

WWW.WEATHER.GOV/SEATTLE

830 
WWUS46 KSEW 060442
WSWSEW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
842 PM PST SUN FEB 5 2017

WAZ504-507-509-555-556-558-559-061245-
/O.CON.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
SOUTHWEST INTERIOR-EVERETT AND VICINITY-TACOMA AREA-
EAST PUGET SOUND LOWLANDS-BELLEVUE AND VICINITY-
SEATTLE AND VICINITY-BREMERTON AND VICINITY-
842 PM PST SUN FEB 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOWFALL IS FORECAST TO
  FALL OVERNIGHT WITH THE BEST CHANCE OF SNOW ON THE HILLS. MUCH
  LESS ACCUMULATION IS LIKELY NEAR THE WATER AND CLOSER TO SEA
  LEVEL.

* SOME AFFECTED LOCATIONS...SEATTLE...EVERETT...TACOMA... 
  BREMERTON...OLYMPIA...CHEHALIS AND MOST LOWLAND LOCATIONS EAST 
  AND SOUTHEAST OF PUGET SOUND. 

* TIMING...SNOW IS EXPECTED TO INCREASE THIS EVENING AND 
  CONTINUE OFF AND ON THROUGH EARLY MONDAY AFTERNOON. 

* MAIN IMPACT...ROADS AND SIDEWALKS WILL BE SNOW COVERED AND 
  VERY SLIPPERY. TRAVEL WILL BE VERY DIFFICULT...ESPECIALLY 
  DURING THE MONDAY MORNING COMMUTE. DELAYS MAY BE SIGNIFICANT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT
SNOWFALL IS FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. IF YOU MUST
DRIVE ON SNOWY ROADS...KEEP SOME WARM CLOTHES...A
FLASHLIGHT...YOUR CELLPHONE...SNACKS AND WATER IN YOUR VEHICLE.
AND ABOVE ALL...SLOW DOWN. 

&&

$$

WAZ569-061245-
/O.CON.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
CASCADES OF PIERCE AND LEWIS COUNTIES-
842 PM PST SUN FEB 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW ACCUMULATIONS...STEADY LIGHT SNOW THROUGH SUNDAY NIGHT 
  WILL BRING ANOTHER 16 TO 30 INCHES OF NEW SNOW. 

* SOME AFFECTED LOCATIONS...PARADISE ON MOUNT RAINIER AND WHITE 
  PASS. 

* TIMING...THROUGH 4 AM PST MONDAY MORNING.

* SNOW LEVEL...BELOW 1000 FEET TONIGHT AND MONDAY.

* MAIN IMPACT...SLIPPERY SNOW COVERED ROADS WILL CAUSE 
  CHALLENGING TRAVEL CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS WINTER STORM WARNING FOR HEAVY SNOW MEANS HEAVY SNOWFALL IS
FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. IF YOU MUST DRIVE ON
SNOWY ROADS...KEEP SOME WARM CLOTHES...A FLASHLIGHT...YOUR
CELLPHONE...SNACKS AND WATER IN YOUR VEHICLE. AND ABOVE ALL...SLOW
DOWN.

&&

$$

WAZ511-512-514-061245-
/O.CON.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-
EASTERN STRAIT OF JUAN DE FUCA-
842 PM PST SUN FEB 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOWFALL IS POSSIBLE WITH
  ISOLATED SPOTS UP TO 5 INCHES. THE HEAVIEST SNOW WILL FALL ON
  THE HILLS WITH LESS ACCUMULATION NEAR THE WATER AT SEA LEVEL.

* SOME AFFECTED LOCATIONS...SHELTON...ELMA.

* TIMING...WET SNOW TONIGHT WILL TURN TO SNOW SHOWERS MONDAY.

* MAIN IMPACT...ROADS AND SIDEWALKS WILL BE SNOW COVERED AND 
  VERY SLIPPERY. TRAVEL WILL BE VERY DIFFICULT...ESPECIALLY 
  DURING THE MONDAY MORNING COMMUTE. DELAYS MAY BE SIGNIFICANT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT
SNOWFALL IS FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. IF YOU MUST
DRIVE ON SNOWY ROADS...KEEP SOME WARM CLOTHES...A
FLASHLIGHT...YOUR CELLPHONE...SNACKS AND WATER IN YOUR VEHICLE.
AND ABOVE ALL...SLOW DOWN. 

&&

$$

WAZ001-503-506-510-515>517-061245-
/O.CON.KSEW.WW.Y.0009.000000T0000Z-170207T0000Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-WESTERN STRAIT OF JUAN DE FUCA-NORTH COAST-
CENTRAL COAST-
842 PM PST SUN FEB 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
MONDAY...

* SNOW ACCUMULATIONS...UP TO 3 INCHES OF SNOWFALL IS POSSIBLE. 
  ISOLATED SPOTS CLOSE TO THE OLYMPICS COULD SEE UP TO 5 INCHES. 

* SOME AFFECTED LOCATIONS...BELLINGHAM...OAK HARBOR...PORT 
  TOWNSEND...FORKS...HOQUIAM. 

* TIMING...RAIN IS EXPECTED TO START TRANSITIONING OVER TO SNOW 
  TONIGHT...BECOMING MOSTLY SNOW AFTER 10 PM TONIGHT AND 
  CONTINUING INTO EARLY MONDAY AFTERNOON. 

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS WILL CREATE 
  CHALLENGING TRAVEL CONDITIONS. THE MONDAY MORNING COMMUTE MAY 
  BE AFFECTED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES... AND USE CAUTION WHILE
DRIVING.

&&

$$

WAZ568-061245-
/O.CON.KSEW.WW.Y.0009.000000T0000Z-170207T0000Z/
CASCADES OF SNOHOMISH AND KING COUNTIES-
842 PM PST SUN FEB 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
MONDAY...

* SNOW ACCUMULATIONS...10 TO 17 INCHES OF SNOWFALL IS POSSIBLE 
  THROUGH MONDAY AFTERNOON. 

* SOME AFFECTED LOCATIONS...STEVENS PASS AND SNOQUALMIE PASS.

* TIMING...THROUGH MONDAY AFTERNOON.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES... AND USE CAUTION WHILE
DRIVING.

&&

$$

WWW.WEATHER.GOV/SEATTLE

367 
WWUS46 KSEW 061218
WSWSEW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
418 AM PST MON FEB 6 2017

WAZ504-507-509-555-556-558-559-070000-
/O.CON.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
SOUTHWEST INTERIOR-EVERETT AND VICINITY-TACOMA AREA-
EAST PUGET SOUND LOWLANDS-BELLEVUE AND VICINITY-
SEATTLE AND VICINITY-BREMERTON AND VICINITY-
418 AM PST MON FEB 6 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 3 INCHES OF SNOWFALL IS
  EXPECTED THROUGH THIS AFTERNOON WITH THE BEST CHANCES FOR HIGHER
  ACCUMULATIONS REMAINING ON HILLTOPS AND LESSER ACCUMULATIONS
  EXPECTED NEAR WATER OR CLOSER TO SEA LEVEL.

* SOME AFFECTED LOCATIONS...SEATTLE...EVERETT...TACOMA... 
  BREMERTON...OLYMPIA...CHEHALIS AND MOST LOWLAND LOCATIONS EAST 
  AND SOUTHEAST OF PUGET SOUND. 

* TIMING...SNOW SHOWERS ARE EXPECTED TO CONTINUE OFF AND ON
  THROUGH THIS AFTERNOON.

* MAIN IMPACT...ROADS AND SIDEWALKS WILL BE SNOW COVERED AND VERY
  SLIPPERY. TRAVEL WILL BE VERY DIFFICULT...ESPECIALLY DURING THE
  MORNING COMMUTE. DELAYS MAY BE SIGNIFICANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT
SNOWFALL IS FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. IF YOU MUST
DRIVE ON SNOWY ROADS...KEEP SOME WARM CLOTHES...A FLASHLIGHT...
YOUR CELLPHONE...SNACKS AND WATER IN YOUR VEHICLE. AND ABOVE
ALL...SLOW DOWN.

&&

$$

WAZ569-070000-
/O.CON.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
CASCADES OF PIERCE AND LEWIS COUNTIES-
418 AM PST MON FEB 6 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* SNOW ACCUMULATIONS...STEADY LIGHT SNOW TRANSITIONING TO SNOW
  SHOWERS BY THIS AFTERNOON WILL BRING AN ADDITIONAL 5 TO 15
  INCHES OF SNOW.

* SOME AFFECTED LOCATIONS...PARADISE ON MOUNT RAINIER AND WHITE 
  PASS. 

* TIMING...THROUGH 4 PM PST THIS AFTERNOON.

* SNOW LEVEL...BELOW 1000 FEET.

* MAIN IMPACT...SLIPPERY SNOW COVERED ROADS WILL CAUSE 
  CHALLENGING TRAVEL CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS WINTER STORM WARNING FOR HEAVY SNOW MEANS HEAVY SNOWFALL IS
FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. IF YOU MUST DRIVE ON
SNOWY ROADS...KEEP SOME WARM CLOTHES...A FLASHLIGHT...YOUR
CELLPHONE...SNACKS AND WATER IN YOUR VEHICLE. AND ABOVE ALL...
SLOW DOWN.

&&

$$

WAZ511-512-514-070000-
/O.CON.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-
EASTERN STRAIT OF JUAN DE FUCA-
418 AM PST MON FEB 6 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 3 INCHES OF SNOWFALL IS
  EXPECTED THROUGH THIS AFTERNOON WITH THE BEST CHANCES FOR HIGHER
  ACCUMULATIONS REMAINING ON HILLTOPS AND LESSER ACCUMULATIONS
  EXPECTED NEAR WATER OR CLOSER TO SEA LEVEL.

* SOME AFFECTED LOCATIONS...SHELTON...ELMA.

* TIMING...SNOW SHOWERS ARE EXPECTED TO PERSIST INTO THE AFTERNOON.

* MAIN IMPACT...ROADS AND SIDEWALKS WILL BE SNOW COVERED AND 
  VERY SLIPPERY. TRAVEL WILL BE VERY DIFFICULT...ESPECIALLY 
  DURING THE MONDAY MORNING COMMUTE. DELAYS MAY BE SIGNIFICANT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT
SNOWFALL IS FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. IF YOU MUST
DRIVE ON SNOWY ROADS...KEEP SOME WARM CLOTHES...A FLASHLIGHT...
YOUR CELLPHONE...SNACKS AND WATER IN YOUR VEHICLE. AND ABOVE
ALL...SLOW DOWN.

&&

$$

WAZ001-503-506-510-515>517-070000-
/O.CON.KSEW.WW.Y.0009.000000T0000Z-170207T0000Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-WESTERN STRAIT OF JUAN DE FUCA-NORTH COAST-
CENTRAL COAST-
418 AM PST MON FEB 6 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* SNOW ACCUMULATIONS...UP TO AN ADDITIONAL INCH OF SNOWFALL IS
  POSSIBLE THROUGH THIS AFTERNOON. ISOLATED SPOTS CLOSE TO THE
  OLYMPICS COULD SEE UP TO AN ADDITIONAL 2 INCHES.

* SOME AFFECTED LOCATIONS...BELLINGHAM...OAK HARBOR...PORT 
  TOWNSEND...FORKS...HOQUIAM. 

* TIMING...SNOW SHOWERS ARE EXPECTED TO PERSIST INTO THIS AFTERNOON.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS WILL CREATE 
  CHALLENGING TRAVEL CONDITIONS. THE MONDAY MORNING COMMUTE MAY 
  BE AFFECTED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WAZ568-070000-
/O.CON.KSEW.WW.Y.0009.000000T0000Z-170207T0000Z/
CASCADES OF SNOHOMISH AND KING COUNTIES-
418 AM PST MON FEB 6 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* SNOW ACCUMULATIONS...5 TO 10 INCHES OF ADDITIONAL SNOWFALL IS
  POSSIBLE THROUGH THIS AFTERNOON.

* SOME AFFECTED LOCATIONS...STEVENS PASS AND SNOQUALMIE PASS.

* TIMING...THROUGH THIS AFTERNOON.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WWW.WEATHER.GOV/SEATTLE

147 
WWUS46 KSEW 062216
WSWSEW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
216 PM PST MON FEB 6 2017

WAZ514-070600-
/O.CAN.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
/O.EXB.KSEW.WW.Y.0009.000000T0000Z-170207T0600Z/
EASTERN STRAIT OF JUAN DE FUCA-
216 PM PST MON FEB 6 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...WINTER STORM WARNING HAS ENDED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 10 PM PST
THIS EVENING. THE WINTER STORM WARNING HAS ENDED.

* SNOW ACCUMULATIONS...UP TO 2 ADDITIONAL INCHES OF SNOWFALL ARE
  POSSIBLE THROUGH THIS EVENING.

* SOME AFFECTED LOCATIONS...PORT ANGELES.

* TIMING...SNOW SHOWERS WILL CONTINUE LATE THIS AFTERNOON AND
  EARLY THIS EVENING...THEN TAPER OFF LATE THIS EVENING.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WAZ569-070600-
/O.CAN.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
/O.EXB.KSEW.WW.Y.0009.000000T0000Z-170207T0600Z/
CASCADES OF PIERCE AND LEWIS COUNTIES-
216 PM PST MON FEB 6 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...WINTER STORM WARNING HAS ENDED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 10 PM PST
THIS EVENING. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* SNOW ACCUMULATIONS...3 TO 6 ADDITIONAL INCHES OF SNOW FROM LATE
  THIS AFTERNOON THROUGH THIS EVENING.

* SOME AFFECTED LOCATIONS...WHITE PASS...PARADISE AND LONGMIRE.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WAZ504-507-509-511-512-555-556-558-559-062330-
/O.CAN.KSEW.WS.W.0005.000000T0000Z-170207T0000Z/
SOUTHWEST INTERIOR-EVERETT AND VICINITY-TACOMA AREA-
HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-
EAST PUGET SOUND LOWLANDS-BELLEVUE AND VICINITY-
SEATTLE AND VICINITY-BREMERTON AND VICINITY-
216 PM PST MON FEB 6 2017

...WINTER STORM WARNING HAS ENDED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ENDED THE WINTER
STORM WARNING.

A MIX OF SCATTERED RAIN AND SNOW SHOWERS WILL CONTINUE THROUGH
THIS EVENING, BUT ADDITIONAL SNOW ACCUMULATIONS ARE EXPECTED TO BE
LESS THAN ONE INCH.

$$

WAZ506-510-516-517-062330-
/O.CAN.KSEW.WW.Y.0009.000000T0000Z-170207T0000Z/
WESTERN SKAGIT COUNTY-ADMIRALTY INLET AREA-NORTH COAST-
CENTRAL COAST-
216 PM PST MON FEB 6 2017

...WINTER WEATHER ADVISORY HAS ENDED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

A MIX OF SCATTERED RAIN AND SNOW SHOWERS WILL CONTINUE THROUGH
THIS EVENING, BUT ADDITIONAL SNOW ACCUMULATIONS ARE EXPECTED TO BE
LESS THAN ONE INCH.

$$

WAZ001-503-071200-
/O.EXT.KSEW.WW.Y.0009.000000T0000Z-170207T1200Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-
216 PM PST MON FEB 6 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 AM PST TUESDAY...

* SNOW ACCUMULATIONS...1 TO 2 INCHES OF ADDITIONAL SNOW ARE
  EXPECTED FROM LATE THIS AFTERNOON THROUGH TONIGHT. SNOW SHOWERS
  WILL TAPER OFF AND END LATE TONIGHT.

* SOME AFFECTED LOCATIONS...SUMAS...FERNDALE...BLAINE...
  BELLINGHAM...EASTSOUND AND FRIDAY HARBOR.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS WILL CREATE
  CHALLENGING TRAVEL CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WAZ515-070600-
/O.EXT.KSEW.WW.Y.0009.000000T0000Z-170207T0600Z/
WESTERN STRAIT OF JUAN DE FUCA-
216 PM PST MON FEB 6 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* SNOW ACCUMULATIONS...UP TO AN ADDITIONAL INCH OF SNOWFALL IS
  POSSIBLE THROUGH THIS EVENING. SNOW SHOWERS WILL TAPER OFF LATE
  THIS EVENING.

* SOME AFFECTED LOCATIONS...SEKIU...CLALLAM BAY AND JOYCE.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WAZ568-070600-
/O.EXT.KSEW.WW.Y.0009.000000T0000Z-170207T0600Z/
CASCADES OF SNOHOMISH AND KING COUNTIES-
216 PM PST MON FEB 6 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* SNOW ACCUMULATIONS...3 TO 6 INCHES OF ADDITIONAL SNOWFALL ARE
  EXPECTED LATE THIS AFTERNOON AND THIS EVENING. SNOW SHOWERS WILL
  TAPER OFF OVERNIGHT.

* SOME AFFECTED LOCATIONS...STEVENS PASS AND SNOQUALMIE PASS.

* MAIN IMPACT...SNOW COVERED OR SLIPPERY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

WWW.WEATHER.GOV/SEATTLE

Area Forecast Discussion
National Weather Service Seattle WA
300 AM PST Sun Feb 5 2017

.SYNOPSIS...A cold upper level low offshore will maintain cool moist
southwest flow aloft over Western Washington again today with
periods of mainly rain through this evening. The low will weaken and
move across the area tonight and Monday morning. This will result in
a transition from rain Sunday night into snow over much of Western
Washington Monday morning. Another low will keep the air mass cold
with scattered rain or snow showers on Tuesday. A warm front will
bring rain and warmer conditions later in the week.

&&

.SHORT TERM...Current radar imagery shows that echo trend is trying
to become less active. Focusing attention on where current headlines
are in place...the winter weather advisory currently in place over
Western Whatcom County looks safe to let expire as bulk of activity
looks to be generally south of them...where temperatures are
decidedly above freezing. On a similar theme...winter storm warning
for the northern third of the Cascades is similarly seeing activity
diminish and as such may allow for said warning to expire. Activity
over the central Cascade zone looks to be slowly diminishing...a
little slower than what would be preferred...but looking at forecast
snow amounts there for the remainder of the morning...said amounts
do not really warrant any kind of extension. Thus...will likely
allow warning to expire there as well. The last...southern most
portion looks to actually be experiencing a bit of a lull right
now...but there are echoes further upstream that certainly warrant
the warning remaining up there through Monday morning. To wrap up
the mountains...and since the southern third of the Cascades is
already one foot into the game...will opt to leave additional
headlines for the mountains to day shift.

On to the big enchilada. The upper level low responsible for this
mess will start moving eastward tonight through Monday. The
combination of northeasterly surface flow and diminishing 1000-850
mb heights as the low enters the area will be a recipe for snow in
the lowlands. However...current model runs deviate some from what
they were showing 24 hrs ago and it is this sudden deviation that
does shake a bit of confidence from the forecast. For
example...current run of WRF4km shows amounts that would reach into
winter storm criteria...but kind of shoots itself down as it also
forecasted snow for Sunday night and this morning instead of the
rain currently present. Cannot say that is the best foundation for a
forecast. Ensembles mean also has amounts that are just borderline
winter storm...but local analysis of this season so far has yielded
that models have been running a little high on amounts.
Lastly...looking at the aforementioned 1000-850 mb
thicknesses...they are far less convincing in the placement of the
1300 line as opposed to previous runs. As such...felt that
maintaining the average 1-3 inch coverage for the lowlands that has
been present in the past two forecasts would be the best path to
take at this time. All that being said...will be posting a winter
weather advisory for snow for all lowland zones with the morning
forecast package.

Obligatory wind discussion...since northeasterly surface flow has
been mentioned. Fraser outflow still looks to be in place...and
while gradients look impressive on first blush...the tightest
gradients remain north of the Canadian border and loosen some south
of the border. While this will not slam on the breaks with regards
to wind speeds for Western Whatcom and the San Juans...it appears
this will play a mitigating role and as such have shaved a little
off of inherited forecast. That being said...while speeds do not
look to meet high wind criteria at this time...wind advisory speeds
are certainly a possibility in the aforementioned areas and as
such...said advisory will also be heading out in the AM package.

So as not to write a novel...precip activity will taper off
gradually Monday with upper level flow becoming more zonal in wake
of upper level low. Some shortwave disturbances in the flow will
still provide chances for precip into Tuesday and temperatures
remain cold enough where snow cannot be ruled out.  SMR

.LONG TERM...The argument can be made for a very slight bit of
ridging over Western Washington Tuesday night and into Wednesday
morning...bringing an ever so slight break in the precip. But an
upper level low squashes any hopes of prolonged dryness as yet
another round of precip looks to be on tap for Wednesday. Slight
breather Wednesday night ahead of next event for Thursday. Warm
front Thursday morning followed by cold front Thursday evening will
bring a fair amount of water with it...with QPF values remaining
pretty impressive.

Maybe it is the lateness of the hour...but models continue to show
an upper level ridge starting to make its way into the area
Saturday. Might be a phantom though...but would certainly be most
welcome.  SMR

&&

.AVIATION...Strong southwest flow aloft over Western Washington
early this morning will continue today and ease somewhat tonight,
as a deep upper trough remains over the offshore waters. A weak
frontal wave extending from western Oregon into its offshore
waters will lift north into Western Washington, for a return to
more widespread precipitation this afternoon. At the same time,
the air mass will cool; rain will probably change to snow across
most of the interior lowlands late this evening, continuing
tonight and into Monday.

There is a wide range of conditions across Western Washington
early this morning, from low-end MVFR ceilings in rain -- at KSEA
in particular -- to ceilings above 10000 ft. This mixed bag will
probably continue this morning in moist onshore flow. Conditions
should become generally VFR with ceilings 035-050 this afternoon
as the next frontal wave lifts north, with deterioration to
widespread low-end MVFR and local IFR this evening and overnight
as rain changes to snow.

KSEA...South wind 6-12 kt today shifting to northeast roughly 4
pm to 6 pm, with north to northeast wind rising to 8-16 kt
overnight. Ceilings will probably remain in the 020-040 today.
Rain will probably change to snow roughly 8 pm to 10 pm this
evening and continue tonight and into Monday. A snowfall total
late this evening through Monday afternoon of 2 to 3 inches is
most likely, but as much as 5 inches total is possible. McDonnal

&&

.MARINE...a trough will remain over the region today; southerly
winds will prevail over most of the waters, but small craft
advisory easterlies should develop in the Strait of Juan de Fuca
and northern inland waters this afternoon. A low will track from
the Oregon coastal waters across the south part of Washington
tonight and Monday morning while high pressure remains over
British Columbia. As a result, northeast offshore flow will
develop, with strong Fraser outflow winds in the northern inland
waters; the gale watch there has been upgraded to a gale warning.
Weaker northerly offshore flow will continue Tuesday and
Wednesday. A vigorous Pacific frontal system could reach the area
around Thursday. McDonnal

&&

.HYDROLOGY...No river flooding expected for the next 7 days.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Winter Weather Advisory from 4 PM this afternoon to 4 PM PST
     Monday for Admiralty Inlet Area-Bellevue and Vicinity-
     Central Coast-East Puget Sound Lowlands-Eastern Strait of
     Juan de Fuca-Everett and Vicinity-Hood Canal Area-Lower
     Chehalis Valley Area-North Coast-San Juan County-Seattle
     and Vicinity-Southwest Interior-Tacoma Area-Western Skagit
     County-Western Strait of Juan De Fuca-Western Whatcom
     County.

     Winter Storm Warning until 4 AM PST Monday for Cascades of
     Pierce and Lewis Counties.

     Winter Storm Warning until 4 AM PST early this morning for
     Cascades of Snohomish and King Counties-Cascades of Whatcom
     and Skagit Counties.

     Winter Weather Advisory until 4 AM PST early this morning for
     Western Whatcom County.

     Wind Advisory from 4 PM this afternoon to noon PST Monday for
     San Juan County-Western Whatcom County.

PZ...Small Craft Advisory until 9 AM PST this morning for Coastal
     Waters From James Island To Point Grenville 10 To 60 Nm-
     Coastal Waters From Point Grenville To Cape Shoalwater 10
     To 60 Nm.

     Small Craft Advisory from midnight tonight to noon PST Monday
     for Coastal Waters From James Island To Point Grenville Out
     10 Nm.

     Small Craft Advisory until 3 PM PST Monday for Central U.S.
     Waters Strait Of Juan De Fuca-Coastal Waters From Cape
     Flattery To James Island 10 To 60 Nm-Coastal Waters From
     Cape Flattery To James Island Out 10 Nm-West Entrance U.S.
     Waters Strait Of Juan De Fuca.

     Small Craft Advisory until noon PST Monday for East Entrance
     U.S. Waters Strait Of Juan De Fuca.

     Small Craft Advisory until 3 PM PST this afternoon for Northern
     Inland Waters Including The San Juan Islands.

     Gale Warning from 3 PM this afternoon to 9 AM PST Monday for
     Northern Inland Waters Including The San Juan Islands.

     Small Craft Advisory from 9 PM this evening to noon PST Monday
     for Admiralty Inlet-Puget Sound and Hood Canal.

&&

www.weather.gov/seattle

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