Avalanche Watch
Areas affected:
Whatcom; Lewis; Mason; Skagit; Pierce; Snohomish; King

WAZ019-513-520-521-042-567>569-170200-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
BACKCOUNTRY AVALANCHE WATCH
NORTHWEST AVALANCHE CENTER SEATTLE WASHINGTON
RELAYED BY NATIONAL WEATHER SERVICE SEATTLE WASHINGTON
700 PM PST SUN JAN 15 2017

THE NORTHWEST AVALANCHE CENTER HAS ISSUED AN AVALANCHE WATCH…

TIMING…
MONDAY NIGHT THROUGH 6 PM TUESDAY JANUARY 17TH.

LOCATION…THE OLYMPICS AND WASHINGTON CASCADES.

AVALANCHE DANGER…THE AVALANCHE DANGER IS EXPECTED TO BECOME HIGH
IN THESE AREAS WITH VERY DANGEROUS AVALANCHE CONDITIONS DEVELOPING
MONDAY NIGHT OR TUESDAY. TRAVEL IN AVALANCHE TERRAIN IS NOT
RECOMMENDED MONDAY NIGHT AND TUESDAY AS NATURAL AND HUMAN TRIGGERED
AVALANCHES SHOULD BECOME VERY LIKELY. CHECK THE FORECAST FOR MORE
DETAILS.

REASON…INCREASING HEAVY RAIN AND SNOW BEGINNING EITHER MONDAY
NIGHT OR TUESDAY WILL LOAD THE SNOWPACK BUILDING UNSTABLE NEW STORM
LAYERS WITH WET AVALANCHES BECOMING LIKELY IN AREAS AND ELEVATIONS
THAT CHANGE TO RAIN. ALSO…STRONG SOUTHWEST WINDS WILL BUILD NEW
AND UNSTABLE WIND SLAB ON LEE SLOPES AT HIGHER ELEVATIONS THROUGHOUT
TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…
PLEASE VISIT WWW.NWAC.US FOR FURTHER INFORMATION.

ADDITIONAL INFORMATION… THIS WATCH DOES NOT APPLY TO SKI AREAS
WHERE AVALANCHE MITIGATION MEASURES ARE PERFORMED.

TRANSMITTED AT THE REQUEST OF NORTHWEST AVALANCHE CENTER IN SEATTLE,
WASHINGTON.

$$

Winter Storm Watch
Areas affected:
Whatcom; Skagit; Snohomish; King

WAZ567-161415-
/O.NEW.KSEW.WS.A.0002.170117T0200Z-170117T1700Z/
CASCADES OF WHATCOM AND SKAGIT COUNTIES-
935 PM PST SUN JAN 15 2017

…WINTER STORM WATCH IN EFFECT FOR THE CASCADES IN WHATCOM AND
SKAGIT COUNTIES FROM MONDAY EVENING THROUGH TUESDAY MORNING…

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER STORM
WATCH…WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
MORNING.

* SNOW ACCUMULATIONS…10 TO 16 INCHES.

* SOME AFFECTED LOCATIONS…MOUNT BAKER SKI AREA.

* TIMING…SNOW WILL DEVELOP ON MONDAY AND BECOME HEAVY AT TIMES
MONDAY NIGHT BEFORE CHANGING OVER TO RAIN ON TUESDAY.

* SNOW LEVEL…SNOW LEVEL NEAR 3000 FEET…RISING TO 6000 FEET ON
TUESDAY.

* MAIN IMPACT…HAZARDOUS WINTER DRIVING CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

Winter Storm Watch
Areas affected:
Whatcom; Skagit; Snohomish; King

WAZ567-170100-
/O.EXT.KSEW.WS.A.0002.170117T1200Z-170118T0600Z/
CASCADES OF WHATCOM AND SKAGIT COUNTIES-
542 AM PST MON JAN 16 2017

…WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING…

* SNOW ACCUMULATIONS…10 TO 16 INCHES.

* SOME AFFECTED LOCATIONS…MOUNT BAKER SKI AREA.

* TIMING…SNOW WILL DEVELOP TONIGHT AND BECOME HEAVY AT TIMES
EARLY TUESDAY BEFORE CHANGING OVER TO RAIN LATE IN THE DAY.

* SNOW LEVEL…SNOW LEVEL NEAR 3000 FEET…RISING TO 6000 FEET
ON TUESDAY EVENING.

* MAIN IMPACT…HAZARDOUS WINTER DRIVING CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

Avalanche Watch
Areas affected:
Whatcom; Lewis; Mason; Skagit; Pierce; Snohomish; King

WAZ019-513-520-521-042-567>569-170200-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
BACKCOUNTRY AVALANCHE WATCH
NORTHWEST AVALANCHE CENTER SEATTLE WASHINGTON
RELAYED BY NATIONAL WEATHER SERVICE SEATTLE WASHINGTON
700 PM PST SUN JAN 15 2017

THE NORTHWEST AVALANCHE CENTER HAS ISSUED AN AVALANCHE WATCH…

TIMING…
MONDAY NIGHT THROUGH 6 PM TUESDAY JANUARY 17TH.

LOCATION…THE OLYMPICS AND WASHINGTON CASCADES.

AVALANCHE DANGER…THE AVALANCHE DANGER IS EXPECTED TO BECOME HIGH
IN THESE AREAS WITH VERY DANGEROUS AVALANCHE CONDITIONS DEVELOPING
MONDAY NIGHT OR TUESDAY. TRAVEL IN AVALANCHE TERRAIN IS NOT
RECOMMENDED MONDAY NIGHT AND TUESDAY AS NATURAL AND HUMAN TRIGGERED
AVALANCHES SHOULD BECOME VERY LIKELY. CHECK THE FORECAST FOR MORE
DETAILS.

REASON…INCREASING HEAVY RAIN AND SNOW BEGINNING EITHER MONDAY
NIGHT OR TUESDAY WILL LOAD THE SNOWPACK BUILDING UNSTABLE NEW STORM
LAYERS WITH WET AVALANCHES BECOMING LIKELY IN AREAS AND ELEVATIONS
THAT CHANGE TO RAIN. ALSO…STRONG SOUTHWEST WINDS WILL BUILD NEW
AND UNSTABLE WIND SLAB ON LEE SLOPES AT HIGHER ELEVATIONS THROUGHOUT
TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…
PLEASE VISIT WWW.NWAC.US FOR FURTHER INFORMATION.

ADDITIONAL INFORMATION… THIS WATCH DOES NOT APPLY TO SKI AREAS
WHERE AVALANCHE MITIGATION MEASURES ARE PERFORMED.

TRANSMITTED AT THE REQUEST OF NORTHWEST AVALANCHE CENTER IN SEATTLE,
WASHINGTON.

$$

Avalanche Watch
Areas affected:
Whatcom; Lewis; Mason; Skagit; Pierce; Snohomish; King

WAZ019-513-520-521-042-567>569-170200-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
BACKCOUNTRY AVALANCHE WATCH
NORTHWEST AVALANCHE CENTER SEATTLE WASHINGTON
RELAYED BY NATIONAL WEATHER SERVICE SEATTLE WASHINGTON
700 PM PST SUN JAN 15 2017

THE NORTHWEST AVALANCHE CENTER HAS ISSUED AN AVALANCHE WATCH…

TIMING…
MONDAY NIGHT THROUGH 6 PM TUESDAY JANUARY 17TH.

LOCATION…THE OLYMPICS AND WASHINGTON CASCADES.

AVALANCHE DANGER…THE AVALANCHE DANGER IS EXPECTED TO BECOME HIGH
IN THESE AREAS WITH VERY DANGEROUS AVALANCHE CONDITIONS DEVELOPING
MONDAY NIGHT OR TUESDAY. TRAVEL IN AVALANCHE TERRAIN IS NOT
RECOMMENDED MONDAY NIGHT AND TUESDAY AS NATURAL AND HUMAN TRIGGERED
AVALANCHES SHOULD BECOME VERY LIKELY. CHECK THE FORECAST FOR MORE
DETAILS.

REASON…INCREASING HEAVY RAIN AND SNOW BEGINNING EITHER MONDAY
NIGHT OR TUESDAY WILL LOAD THE SNOWPACK BUILDING UNSTABLE NEW STORM
LAYERS WITH WET AVALANCHES BECOMING LIKELY IN AREAS AND ELEVATIONS
THAT CHANGE TO RAIN. ALSO…STRONG SOUTHWEST WINDS WILL BUILD NEW
AND UNSTABLE WIND SLAB ON LEE SLOPES AT HIGHER ELEVATIONS THROUGHOUT
TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…
PLEASE VISIT WWW.NWAC.US FOR FURTHER INFORMATION.

ADDITIONAL INFORMATION… THIS WATCH DOES NOT APPLY TO SKI AREAS
WHERE AVALANCHE MITIGATION MEASURES ARE PERFORMED.

TRANSMITTED AT THE REQUEST OF NORTHWEST AVALANCHE CENTER IN SEATTLE,
WASHINGTON.

$$

Avalanche Watch
Areas affected:
Whatcom; Lewis; Mason; Skagit; Pierce; Snohomish; King

WAZ019-513-520-521-042-567>569-170200-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
BACKCOUNTRY AVALANCHE WATCH
NORTHWEST AVALANCHE CENTER SEATTLE WASHINGTON
RELAYED BY NATIONAL WEATHER SERVICE SEATTLE WASHINGTON
700 PM PST SUN JAN 15 2017

THE NORTHWEST AVALANCHE CENTER HAS ISSUED AN AVALANCHE WATCH…

TIMING…
MONDAY NIGHT THROUGH 6 PM TUESDAY JANUARY 17TH.

LOCATION…THE OLYMPICS AND WASHINGTON CASCADES.

AVALANCHE DANGER…THE AVALANCHE DANGER IS EXPECTED TO BECOME HIGH
IN THESE AREAS WITH VERY DANGEROUS AVALANCHE CONDITIONS DEVELOPING
MONDAY NIGHT OR TUESDAY. TRAVEL IN AVALANCHE TERRAIN IS NOT
RECOMMENDED MONDAY NIGHT AND TUESDAY AS NATURAL AND HUMAN TRIGGERED
AVALANCHES SHOULD BECOME VERY LIKELY. CHECK THE FORECAST FOR MORE
DETAILS.

REASON…INCREASING HEAVY RAIN AND SNOW BEGINNING EITHER MONDAY
NIGHT OR TUESDAY WILL LOAD THE SNOWPACK BUILDING UNSTABLE NEW STORM
LAYERS WITH WET AVALANCHES BECOMING LIKELY IN AREAS AND ELEVATIONS
THAT CHANGE TO RAIN. ALSO…STRONG SOUTHWEST WINDS WILL BUILD NEW
AND UNSTABLE WIND SLAB ON LEE SLOPES AT HIGHER ELEVATIONS THROUGHOUT
TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…
PLEASE VISIT WWW.NWAC.US FOR FURTHER INFORMATION.

ADDITIONAL INFORMATION… THIS WATCH DOES NOT APPLY TO SKI AREAS
WHERE AVALANCHE MITIGATION MEASURES ARE PERFORMED.

TRANSMITTED AT THE REQUEST OF NORTHWEST AVALANCHE CENTER IN SEATTLE,
WASHINGTON.

$$

Winter Storm Watch
Areas affected:
Whatcom; Skagit; Snohomish; King

WAZ567-161415-
/O.NEW.KSEW.WS.A.0002.170117T0200Z-170117T1700Z/
CASCADES OF WHATCOM AND SKAGIT COUNTIES-
935 PM PST SUN JAN 15 2017

…WINTER STORM WATCH IN EFFECT FOR THE CASCADES IN WHATCOM AND
SKAGIT COUNTIES FROM MONDAY EVENING THROUGH TUESDAY MORNING…

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER STORM
WATCH…WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
MORNING.

* SNOW ACCUMULATIONS…10 TO 16 INCHES.

* SOME AFFECTED LOCATIONS…MOUNT BAKER SKI AREA.

* TIMING…SNOW WILL DEVELOP ON MONDAY AND BECOME HEAVY AT TIMES
MONDAY NIGHT BEFORE CHANGING OVER TO RAIN ON TUESDAY.

* SNOW LEVEL…SNOW LEVEL NEAR 3000 FEET…RISING TO 6000 FEET ON
TUESDAY.

* MAIN IMPACT…HAZARDOUS WINTER DRIVING CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

Winter Storm Watch
Areas affected:
Whatcom; Skagit; Snohomish; King

WAZ567-170100-
/O.EXT.KSEW.WS.A.0002.170117T1200Z-170118T0600Z/
CASCADES OF WHATCOM AND SKAGIT COUNTIES-
542 AM PST MON JAN 16 2017

…WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING…

* SNOW ACCUMULATIONS…10 TO 16 INCHES.

* SOME AFFECTED LOCATIONS…MOUNT BAKER SKI AREA.

* TIMING…SNOW WILL DEVELOP TONIGHT AND BECOME HEAVY AT TIMES
EARLY TUESDAY BEFORE CHANGING OVER TO RAIN LATE IN THE DAY.

* SNOW LEVEL…SNOW LEVEL NEAR 3000 FEET…RISING TO 6000 FEET
ON TUESDAY EVENING.

* MAIN IMPACT…HAZARDOUS WINTER DRIVING CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

Avalanche Watch
Areas affected:
Whatcom; Lewis; Mason; Skagit; Pierce; Snohomish; King

WAZ019-513-520-521-042-567>569-170200-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
BACKCOUNTRY AVALANCHE WATCH
NORTHWEST AVALANCHE CENTER SEATTLE WASHINGTON
RELAYED BY NATIONAL WEATHER SERVICE SEATTLE WASHINGTON
700 PM PST SUN JAN 15 2017

THE NORTHWEST AVALANCHE CENTER HAS ISSUED AN AVALANCHE WATCH…

TIMING…
MONDAY NIGHT THROUGH 6 PM TUESDAY JANUARY 17TH.

LOCATION…THE OLYMPICS AND WASHINGTON CASCADES.

AVALANCHE DANGER…THE AVALANCHE DANGER IS EXPECTED TO BECOME HIGH
IN THESE AREAS WITH VERY DANGEROUS AVALANCHE CONDITIONS DEVELOPING
MONDAY NIGHT OR TUESDAY. TRAVEL IN AVALANCHE TERRAIN IS NOT
RECOMMENDED MONDAY NIGHT AND TUESDAY AS NATURAL AND HUMAN TRIGGERED
AVALANCHES SHOULD BECOME VERY LIKELY. CHECK THE FORECAST FOR MORE
DETAILS.

REASON…INCREASING HEAVY RAIN AND SNOW BEGINNING EITHER MONDAY
NIGHT OR TUESDAY WILL LOAD THE SNOWPACK BUILDING UNSTABLE NEW STORM
LAYERS WITH WET AVALANCHES BECOMING LIKELY IN AREAS AND ELEVATIONS
THAT CHANGE TO RAIN. ALSO…STRONG SOUTHWEST WINDS WILL BUILD NEW
AND UNSTABLE WIND SLAB ON LEE SLOPES AT HIGHER ELEVATIONS THROUGHOUT
TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…
PLEASE VISIT WWW.NWAC.US FOR FURTHER INFORMATION.

ADDITIONAL INFORMATION… THIS WATCH DOES NOT APPLY TO SKI AREAS
WHERE AVALANCHE MITIGATION MEASURES ARE PERFORMED.

TRANSMITTED AT THE REQUEST OF NORTHWEST AVALANCHE CENTER IN SEATTLE,
WASHINGTON.

$$

Avalanche Watch
Areas affected:
Whatcom; Lewis; Mason; Skagit; Pierce; Snohomish; King

WAZ019-513-520-521-042-567>569-170200-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
BACKCOUNTRY AVALANCHE WATCH
NORTHWEST AVALANCHE CENTER SEATTLE WASHINGTON
RELAYED BY NATIONAL WEATHER SERVICE SEATTLE WASHINGTON
700 PM PST SUN JAN 15 2017

THE NORTHWEST AVALANCHE CENTER HAS ISSUED AN AVALANCHE WATCH…

TIMING…
MONDAY NIGHT THROUGH 6 PM TUESDAY JANUARY 17TH.

LOCATION…THE OLYMPICS AND WASHINGTON CASCADES.

AVALANCHE DANGER…THE AVALANCHE DANGER IS EXPECTED TO BECOME HIGH
IN THESE AREAS WITH VERY DANGEROUS AVALANCHE CONDITIONS DEVELOPING
MONDAY NIGHT OR TUESDAY. TRAVEL IN AVALANCHE TERRAIN IS NOT
RECOMMENDED MONDAY NIGHT AND TUESDAY AS NATURAL AND HUMAN TRIGGERED
AVALANCHES SHOULD BECOME VERY LIKELY. CHECK THE FORECAST FOR MORE
DETAILS.

REASON…INCREASING HEAVY RAIN AND SNOW BEGINNING EITHER MONDAY
NIGHT OR TUESDAY WILL LOAD THE SNOWPACK BUILDING UNSTABLE NEW STORM
LAYERS WITH WET AVALANCHES BECOMING LIKELY IN AREAS AND ELEVATIONS
THAT CHANGE TO RAIN. ALSO…STRONG SOUTHWEST WINDS WILL BUILD NEW
AND UNSTABLE WIND SLAB ON LEE SLOPES AT HIGHER ELEVATIONS THROUGHOUT
TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…
PLEASE VISIT WWW.NWAC.US FOR FURTHER INFORMATION.

ADDITIONAL INFORMATION… THIS WATCH DOES NOT APPLY TO SKI AREAS
WHERE AVALANCHE MITIGATION MEASURES ARE PERFORMED.

TRANSMITTED AT THE REQUEST OF NORTHWEST AVALANCHE CENTER IN SEATTLE,
WASHINGTON.

$$

Winter Storm Watch
Areas affected:
Whatcom; Skagit; Snohomish; King

WAZ568-161415-
/O.NEW.KSEW.WS.A.0002.170117T0200Z-170118T0000Z/
CASCADES OF SNOHOMISH AND KING COUNTIES-
935 PM PST SUN JAN 15 2017

…WINTER STORM WATCH IN EFFECT FOR THE CASCADES IN SNOHOMISH AND
KING COUNTIES FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON…

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER STORM
WATCH…WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON.

* SNOW ACCUMULATIONS…10 TO 20 INCHES.

* ICE ACCUMULATIONS…A QUARTER OF AN INCH OR MORE IS POSSIBLE IN
THE PASSES BELOW 5000 FEET.

* SOME AFFECTED LOCATIONS…SNOQUALMIE PASS AND STEVENS PASS.

* TIMING…SNOW WILL DEVELOP ON MONDAY AND THEN BECOME HEAVY AT
TIMES MONDAY NIGHT. PERIODS OF SNOW…LOCALLY HEAVY…WILL
PERSIST AT ELEVATIONS ABOVE 4000 FEET ON TUESDAY. SNOQUALMIE
PASS CAN EXPECT THE SNOW TO CHANGE OVER TO FREEZING RAIN LATE
MONDAY NIGHT OR TUESDAY MORNING…RESULTING IN THE POSSIBILITY
OF SIGNIFICANT ICE ACCUMULATIONS.

* SNOW LEVEL…AT OR NEAR THE SURFACE IN THE PASSES OR THOSE AREAS
PRONE TO COLD EAST WINDS MONDAY…RISING TO 5500 TO 6500 TUESDAY
AFTERNOON.

* MAIN IMPACT…HAZARDOUS WINTER DRIVING CONDITIONS ARE
ANTICIPATED TO DEVELOP MONDAY NIGHT…WITH CONDITIONS POSSIBLY
BECOMING TREACHEROUS IN SNOQUALMIE PASS LATE MONDAY NIGHT OR
TUESDAY MORNING DUE TO ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

Winter Storm Watch
Areas affected:
Whatcom; Skagit; Snohomish; King

WAZ568-170100-
/O.EXT.KSEW.WS.A.0002.170117T1200Z-170118T0600Z/
CASCADES OF SNOHOMISH AND KING COUNTIES-
542 AM PST MON JAN 16 2017

…WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING…

* SNOW ACCUMULATIONS…10 TO 20 INCHES.

* ICE ACCUMULATIONS…A QUARTER OF AN INCH OR MORE IS POSSIBLE
IN THE PASSES BELOW 5000 FEET.

* SOME AFFECTED LOCATIONS…SNOQUALMIE PASS AND STEVENS PASS.

* TIMING…SNOW WILL DEVELOP ON TUESDAY THEN BECOME HEAVY AT
TIMES. PERIODS OF SNOW…LOCALLY HEAVY…WILL PERSIST AT
ELEVATIONS ABOVE 4000 FEET ON TUESDAY. SNOQUALMIE PASS CAN
EXPECT THE SNOW TO CHANGE OVER TO FREEZING RAIN TUESDAY
MORNING…RESULTING IN THE POSSIBILITY OF SIGNIFICANT ICE
ACCUMULATIONS.

* SNOW LEVEL…AT OR NEAR THE SURFACE IN THE PASSES OR THOSE AREAS
PRONE TO COLD EAST WINDS EARLY TUESDAY…RISING TO 5500 TO 6500
TUESDAY AFTERNOON.

* MAIN IMPACT…HAZARDOUS WINTER DRIVING CONDITIONS ARE
ANTICIPATED TO DEVELOP EARLY TUESDAY MORNING…WITH CONDITIONS
POSSIBLY BECOMING TREACHEROUS IN SNOQUALMIE PASS TUESDAY
MORNING DUE TO ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

Avalanche Watch
Areas affected:
Whatcom; Lewis; Mason; Skagit; Pierce; Snohomish; King

WAZ019-513-520-521-042-567>569-170200-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
BACKCOUNTRY AVALANCHE WATCH
NORTHWEST AVALANCHE CENTER SEATTLE WASHINGTON
RELAYED BY NATIONAL WEATHER SERVICE SEATTLE WASHINGTON
700 PM PST SUN JAN 15 2017

THE NORTHWEST AVALANCHE CENTER HAS ISSUED AN AVALANCHE WATCH…

TIMING…
MONDAY NIGHT THROUGH 6 PM TUESDAY JANUARY 17TH.

LOCATION…THE OLYMPICS AND WASHINGTON CASCADES.

AVALANCHE DANGER…THE AVALANCHE DANGER IS EXPECTED TO BECOME HIGH
IN THESE AREAS WITH VERY DANGEROUS AVALANCHE CONDITIONS DEVELOPING
MONDAY NIGHT OR TUESDAY. TRAVEL IN AVALANCHE TERRAIN IS NOT
RECOMMENDED MONDAY NIGHT AND TUESDAY AS NATURAL AND HUMAN TRIGGERED
AVALANCHES SHOULD BECOME VERY LIKELY. CHECK THE FORECAST FOR MORE
DETAILS.

REASON…INCREASING HEAVY RAIN AND SNOW BEGINNING EITHER MONDAY
NIGHT OR TUESDAY WILL LOAD THE SNOWPACK BUILDING UNSTABLE NEW STORM
LAYERS WITH WET AVALANCHES BECOMING LIKELY IN AREAS AND ELEVATIONS
THAT CHANGE TO RAIN. ALSO…STRONG SOUTHWEST WINDS WILL BUILD NEW
AND UNSTABLE WIND SLAB ON LEE SLOPES AT HIGHER ELEVATIONS THROUGHOUT
TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…
PLEASE VISIT WWW.NWAC.US FOR FURTHER INFORMATION.

ADDITIONAL INFORMATION… THIS WATCH DOES NOT APPLY TO SKI AREAS
WHERE AVALANCHE MITIGATION MEASURES ARE PERFORMED.

TRANSMITTED AT THE REQUEST OF NORTHWEST AVALANCHE CENTER IN SEATTLE,
WASHINGTON.

$$

Winter Storm Watch
Areas affected:
Whatcom; Skagit; Snohomish; King

WAZ568-161415-
/O.NEW.KSEW.WS.A.0002.170117T0200Z-170118T0000Z/
CASCADES OF SNOHOMISH AND KING COUNTIES-
935 PM PST SUN JAN 15 2017

…WINTER STORM WATCH IN EFFECT FOR THE CASCADES IN SNOHOMISH AND
KING COUNTIES FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON…

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER STORM
WATCH…WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON.

* SNOW ACCUMULATIONS…10 TO 20 INCHES.

* ICE ACCUMULATIONS…A QUARTER OF AN INCH OR MORE IS POSSIBLE IN
THE PASSES BELOW 5000 FEET.

* SOME AFFECTED LOCATIONS…SNOQUALMIE PASS AND STEVENS PASS.

* TIMING…SNOW WILL DEVELOP ON MONDAY AND THEN BECOME HEAVY AT
TIMES MONDAY NIGHT. PERIODS OF SNOW…LOCALLY HEAVY…WILL
PERSIST AT ELEVATIONS ABOVE 4000 FEET ON TUESDAY. SNOQUALMIE
PASS CAN EXPECT THE SNOW TO CHANGE OVER TO FREEZING RAIN LATE
MONDAY NIGHT OR TUESDAY MORNING…RESULTING IN THE POSSIBILITY
OF SIGNIFICANT ICE ACCUMULATIONS.

* SNOW LEVEL…AT OR NEAR THE SURFACE IN THE PASSES OR THOSE AREAS
PRONE TO COLD EAST WINDS MONDAY…RISING TO 5500 TO 6500 TUESDAY
AFTERNOON.

* MAIN IMPACT…HAZARDOUS WINTER DRIVING CONDITIONS ARE
ANTICIPATED TO DEVELOP MONDAY NIGHT…WITH CONDITIONS POSSIBLY
BECOMING TREACHEROUS IN SNOQUALMIE PASS LATE MONDAY NIGHT OR
TUESDAY MORNING DUE TO ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

Winter Storm Watch
Areas affected:
Whatcom; Skagit; Snohomish; King

WAZ568-170100-
/O.EXT.KSEW.WS.A.0002.170117T1200Z-170118T0600Z/
CASCADES OF SNOHOMISH AND KING COUNTIES-
542 AM PST MON JAN 16 2017

…WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING…

* SNOW ACCUMULATIONS…10 TO 20 INCHES.

* ICE ACCUMULATIONS…A QUARTER OF AN INCH OR MORE IS POSSIBLE
IN THE PASSES BELOW 5000 FEET.

* SOME AFFECTED LOCATIONS…SNOQUALMIE PASS AND STEVENS PASS.

* TIMING…SNOW WILL DEVELOP ON TUESDAY THEN BECOME HEAVY AT
TIMES. PERIODS OF SNOW…LOCALLY HEAVY…WILL PERSIST AT
ELEVATIONS ABOVE 4000 FEET ON TUESDAY. SNOQUALMIE PASS CAN
EXPECT THE SNOW TO CHANGE OVER TO FREEZING RAIN TUESDAY
MORNING…RESULTING IN THE POSSIBILITY OF SIGNIFICANT ICE
ACCUMULATIONS.

* SNOW LEVEL…AT OR NEAR THE SURFACE IN THE PASSES OR THOSE AREAS
PRONE TO COLD EAST WINDS EARLY TUESDAY…RISING TO 5500 TO 6500
TUESDAY AFTERNOON.

* MAIN IMPACT…HAZARDOUS WINTER DRIVING CONDITIONS ARE
ANTICIPATED TO DEVELOP EARLY TUESDAY MORNING…WITH CONDITIONS
POSSIBLY BECOMING TREACHEROUS IN SNOQUALMIE PASS TUESDAY
MORNING DUE TO ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$