Winter Storm Warning 1, NWS Sacramento, CA

086 
WWUS46 KSTO 022203
WSWSTO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
203 PM PST MON JAN 2 2017

...HAZARDOUS WINTER MOUNTAIN TRAVEL INCLUDING LOWER ELEVATIONS...

.A VERY COLD AIRMASS COUPLED WITH PRECIPITATION WILL CONTINUE 
SNOW SHOWERS OVER INTERIOR NORTHERN CALIFORNIA MUCH OF THIS WEEK.
SNOW LEVELS WILL BE LOWEST IN SHASTA COUNTY BELOW 1000 FEET WITH 
SNOW LEVELS ALONG THE SIERRA INTO THE FOOTHILLS BETWEEN 1000 TO 
3000 FEET INTO TUESDAY. MOTORISTS SHOULD BE PREPARED FOR HAZARDOUS
WINTER TRAVEL.

CAZ068-069-031500-
/O.CON.KSTO.WS.W.0001.170103T1800Z-170105T1200Z/
/O.CON.KSTO.WW.Y.0031.000000T0000Z-170103T1800Z/
WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF CHESTER, QUINCY, AND BLUE CANYON
203 PM PST MON JAN 2 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO
4 AM PST THURSDAY...

* MAIN IMPACT...HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY OVER THE MOUNTAINS. 

* TIMING...SNOW SHOWERS EXPECTED TODAY THROUGH THURSDAY. HEAVIEST
  SNOWFALL TUESDAY AFTERNOON INTO EARLY WEDNESDAY. 

* LOCATIONS...INTERSTATE 80, HIGHWAYS 36, 50, 70 AND 88 ALONG 
  THE WESTERN SIERRA SLOPES. 

* SNOW ACCUMULATIONS...10 TO 20 INCHES THROUGH TUESDAY. UP TO 4 
  FEET ACROSS THE HIGHER ELEVATIONS BY EARLY THURSDAY. 

* OTHER IMPACTS...STRONG GUSTY SOUTHWEST WINDS MAY RESULT IN 
  AREAS OF BLOWING SNOW WITH LIMITED VISIBILITY THROUGH THE 
  PASSES. 

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

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.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

CAZ013-031500-
/O.CON.KSTO.WS.W.0001.000000T0000Z-170104T1200Z/
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-
INCLUDING THE CITY OF SHASTA DAM
203 PM PST MON JAN 2 2017

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

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY OVER THE MOUNTAINS. 

* TIMING...INCREASING SNOW BY THIS AFTERNOON. PERIODS OF HEAVY
  SNOW TUESDAY INTO EARLY WEDNESDAY. 

* LOCATIONS...INTERSTATE 5 NORTH OF REDDING.

* SNOW ACCUMULATIONS...AROUND 6 INCHES AT SHASTA LAKE WITH 1 TO 2
  FEET POSSIBLE NORTHWARD OF SHASTA LAKE.


INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

CAZ014-031500-
/O.CON.KSTO.WW.Y.0001.000000T0000Z-170104T0600Z/
BURNEY BASIN / EASTERN SHASTA COUNTY-
INCLUDING THE CITY OF BURNEY
203 PM PST MON JAN 2 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...

* MAIN IMPACT: SLIPPERY ROADS, TRAVEL DELAYS AND CHAIN CONTROLS.

* TIMING...AN INCREASE IN ACCUMULATING SNOW THROUGH TUESDAY.

* LOCATIONS...HIGHWAY 299 OVER HATCHET MOUNTAIN PASS.

* SNOW ACCUMULATIONS...4 TO 8 INCHES IN THE BURNEY BASIN WITH 10 
  TO 20 INCHES OVER HIGHER TERRAIN. 

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ066-067-031500-
/O.CON.KSTO.WW.Y.0031.000000T0000Z-170104T0600Z/
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-MOTHERLODE-
INCLUDING THE CITIES OF PARADISE, GRASS VALLEY, AND JACKSON
203 PM PST MON JAN 2 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...

* MAIN IMPACT...HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS. 

* TIMING...SNOW SHOWERS EXPECTED THROUGH TUESDAY.

* LOCATIONS...PARADISE, GRASS VALLEY, NEVADA CITY AND 
  PLACERVILLE.

* SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 1500 FEET WITH LOCAL 
  AMOUNTS AROUND 15 INCHES POSSIBLE NEAR 3000 FEET. 

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ063-064-031500-
/O.CON.KSTO.WW.Y.0001.000000T0000Z-170104T1200Z/
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
CLEAR LAKE/SOUTHERN LAKE COUNTY-
INCLUDING THE CITIES OF ALDER SPRINGS AND LAKEPORT
203 PM PST MON JAN 2 2017

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

* MAIN IMPACT...HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY OVER THE MOUNTAINS. 

* TIMING...HEAVIEST SNOWFALL TUESDAY AFTERNOON INTO EARLY
  WEDNESDAY.

* LOCATIONS...COASTAL RANGE, HIGHER ELEVATIONS OF LAKE COUNTY 
  INCLUDING COBB MOUNTAIN. 

* SNOW ACCUMULATIONS...8 TO 12 INCHES ABOVE 3000 FEET. LOCAL 
  ACCUMULATIONS OF UP TO 18 INCHES OVER THE PEAKS. 

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

JCLAPP

203 
WWUS46 KSTO 031145
WSWSTO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
345 AM PST TUE JAN 3 2017

CAZ068-069-040000-
/O.CAN.KSTO.WW.Y.0031.000000T0000Z-170103T1800Z/
/O.EXT.KSTO.WS.W.0001.170103T1145Z-170105T1200Z/
WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF CHESTER, QUINCY, AND BLUE CANYON
345 AM PST TUE JAN 3 2017

...WINTER STORM WARNING IN EFFECT UNTIL 4 AM PST THURSDAY...

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS WITH
  REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS LIKELY
  OVER THE MOUNTAINS.

* TIMING...INCREASING SNOW TODAY WITH VERY HEAVY SNOW TONIGHT AND
  WEDNESDAY.

* LOCATIONS...INTERSTATE 80, HIGHWAYS 36, 50, 70 AND 88 ALONG 
  THE WESTERN SIERRA SLOPES. 

* SNOW ACCUMULATIONS...4 TO 5 FEET ALONG THE CREST AND HIGHER
  ELEVATIONS, 2 TO 3 FEET DOWN TO 4500 FEET ELEVATION BY EARLY
  THURSDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ013-040000-
/O.CON.KSTO.WS.W.0001.000000T0000Z-170104T1200Z/
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-
INCLUDING THE CITY OF SHASTA DAM
345 AM PST TUE JAN 3 2017

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

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS WITH
  REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS LIKELY.

* TIMING...INCREASING SNOW BY THIS AFTERNOON. PERIODS OF HEAVY
  SNOW INTO EARLY WEDNESDAY. 

* LOCATIONS...INTERSTATE 5 NORTH OF REDDING.

* SNOW ACCUMULATIONS...12 TO 18 INCHES ABOVE 2500 FEET WITH 3 TO 6
  INCHES POSSIBLE DOWN TO 1500 FEET ELEVATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ014-040000-
/O.EXT.KSTO.WW.Y.0001.000000T0000Z-170104T1200Z/
BURNEY BASIN / EASTERN SHASTA COUNTY-
INCLUDING THE CITY OF BURNEY
345 AM PST TUE JAN 3 2017

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

* MAIN IMPACT: SLIPPERY ROADS, TRAVEL DELAYS AND CHAIN CONTROLS.

* TIMING...AN INCREASE IN ACCUMULATING SNOW THROUGH EARLY
  WEDNESDAY.

* LOCATIONS...HIGHWAY 299 OVER HATCHET MOUNTAIN PASS.

* SNOW ACCUMULATIONS...5 TO 10 INCHES IN THE BURNEY BASIN WITH 10
  TO 20 INCHES OVER HIGHER TERRAIN. 

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ066-067-040000-
/O.EXT.KSTO.WW.Y.0031.000000T0000Z-170104T0000Z/
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-MOTHERLODE-
INCLUDING THE CITIES OF PARADISE, GRASS VALLEY, AND JACKSON
345 AM PST TUE JAN 3 2017

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

* MAIN IMPACT...HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS. 

* TIMING...SNOW SHOWERS EXPECTED THROUGH TODAY.

* LOCATIONS...PARADISE, GRASS VALLEY, NEVADA CITY AND 
  PLACERVILLE. 

* SNOW ACCUMULATIONS...AN ADDITIONAL 3 TO 6 INCHES AROUND 3000
  FEET WITH AN INCH OR TWO DOWN TO AROUND 1500 FEET ELEVATION.

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ064-040000-
/O.EXT.KSTO.WW.Y.0001.000000T0000Z-170104T0000Z/
CLEAR LAKE/SOUTHERN LAKE COUNTY-
INCLUDING THE CITY OF LAKEPORT
345 AM PST TUE JAN 3 2017

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

* MAIN IMPACT...HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY OVER THE MOUNTAINS. 

* TIMING...SNOW SHOWERS EXPECTED THROUGH TODAY.

* LOCATIONS...HIGHER ELEVATIONS OF LAKE COUNTY INCLUDING COBB
  MOUNTAIN.

* SNOW ACCUMULATIONS...ADDITIONAL SNOW ACCUMULATIONS OF 3 TO 6
  INCHES OVER THE PEAKS.

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ063-040000-
/O.CON.KSTO.WW.Y.0001.000000T0000Z-170104T1200Z/
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
INCLUDING THE CITY OF ALDER SPRINGS
345 AM PST TUE JAN 3 2017

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

* MAIN IMPACT...HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY OVER THE MOUNTAINS. 

* TIMING...HEAVIEST SNOWFALL INTO EARLY WEDNESDAY. 

* LOCATIONS...COASTAL RANGE. 

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF 4 TO 8 INCHES
  ABOVE 3000 FEET.

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

954 
WWUS46 KSTO 032133
WSWSTO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
133 PM PST TUE JAN 3 2017

CAZ066-067-032245-
/O.CAN.KSTO.WW.Y.0031.000000T0000Z-170104T0000Z/
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-MOTHERLODE-
INCLUDING THE CITIES OF PARADISE, GRASS VALLEY, AND JACKSON
133 PM PST TUE JAN 3 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

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

SNOW LEVELS HAVE INCREASED TO NEAR 3000 FEET WITH THIS SYSTEM.

$$

CAZ064-032245-
/O.CAN.KSTO.WW.Y.0001.000000T0000Z-170104T0000Z/
CLEAR LAKE/SOUTHERN LAKE COUNTY-
INCLUDING THE CITY OF LAKEPORT
133 PM PST TUE JAN 3 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

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

SNOW LEVELS HAVE INCREASED TO NEAR 3000 FEET WITH THIS SYSTEM.

$$

CAZ068-069-041200-
/O.CON.KSTO.WS.W.0001.000000T0000Z-170105T1200Z/
WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF CHESTER, QUINCY, AND BLUE CANYON
133 PM PST TUE JAN 3 2017

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

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY OVER THE MOUNTAINS. 

* TIMING...INCREASING SNOW TODAY WITH VERY HEAVY SNOW TONIGHT 
  AND WEDNESDAY. 

* LOCATIONS...INTERSTATE 80, HIGHWAYS 36, 50, 70 AND 88 ALONG 
  THE WESTERN SIERRA SLOPES. 

* SNOW ACCUMULATIONS...4 TO 5 FEET ALONG THE CREST AND HIGHER
  ELEVATIONS, 2 TO 3 FEET DOWN BETWEEN 5000 AND 5500 FEET
  ELEVATION BY EARLY THURSDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ013-041200-
/O.CON.KSTO.WS.W.0001.000000T0000Z-170104T1200Z/
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-
INCLUDING THE CITY OF SHASTA DAM
133 PM PST TUE JAN 3 2017

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

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY. 

* TIMING...INCREASING SNOW BY THIS AFTERNOON. PERIODS OF HEAVY 
  SNOW INTO EARLY WEDNESDAY. 

* LOCATIONS...INTERSTATE 5 NORTH OF REDDING.

* SNOW ACCUMULATIONS...12 TO 18 INCHES ABOVE 3000 FEET WITH 3 TO 6
  INCHES POSSIBLE DOWN TO 2500 FEET ELEVATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ014-041200-
/O.CON.KSTO.WW.Y.0001.000000T0000Z-170104T1200Z/
BURNEY BASIN / EASTERN SHASTA COUNTY-
INCLUDING THE CITY OF BURNEY
133 PM PST TUE JAN 3 2017

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

* MAIN IMPACT: SLIPPERY ROADS, TRAVEL DELAYS AND CHAIN CONTROLS.

* TIMING...AN INCREASE IN ACCUMULATING SNOW THROUGH EARLY 
  WEDNESDAY. 

* LOCATIONS...HIGHWAY 299 OVER HATCHET MOUNTAIN PASS.

* SNOW ACCUMULATIONS...5 TO 8 INCHES IN THE BURNEY BASIN WITH 10
  TO 20 INCHES OVER HIGHER TERRAIN. 

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ063-041200-
/O.CON.KSTO.WW.Y.0001.000000T0000Z-170104T1200Z/
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
INCLUDING THE CITY OF ALDER SPRINGS
133 PM PST TUE JAN 3 2017

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

* MAIN IMPACT...HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY OVER THE MOUNTAINS. 

* TIMING...HEAVIEST SNOWFALL INTO EARLY WEDNESDAY.

* LOCATIONS...COASTAL RANGE.

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF 4 TO 8 INCHES 
  ABOVE 3000 FEET. 

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$
JCLAPP

138 
WWUS46 KSTO 040150
WSWSTO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
550 PM PST TUE JAN 3 2017

CAZ014-041200-
/O.UPG.KSTO.WW.Y.0001.000000T0000Z-170104T1200Z/
/O.EXA.KSTO.WS.W.0001.000000T0000Z-170104T1200Z/
BURNEY BASIN / EASTERN SHASTA COUNTY-
INCLUDING THE CITY OF BURNEY
550 PM PST TUE JAN 3 2017

...WINTER STORM WARNING IN EFFECT UNTIL 4 AM PST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A WINTER 
STORM WARNING FOR BURNEY BASIN, WHICH IS IN EFFECT UNTIL 4 AM PST 
WEDNESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.

* MAIN IMPACT: SLIPPERY ROADS, TRAVEL DELAYS AND CHAIN CONTROLS.

* TIMING...AN INCREASE IN ACCUMULATING SNOW THIS EVENING INTO 
  EARLY WEDNESDAY. 

* LOCATIONS...HIGHWAY 299 OVER HATCHET MOUNTAIN PASS, BURNEY
  BASIN.

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS 5 TO 10 INCHES IN
  THE BURNEY BASIN WITH 12 TO 20 INCHES OVER HIGHER TERRAIN. 12
  INCHES OF SNOWFALL HAS ALREADY BEEN REPORTED ON THE GROUND 
  WITHIN THE BURNEY BASIN WITH SNOWFALL INCREASING THIS EVENING.

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

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.

&&

$$

CAZ068-069-041200-
/O.CON.KSTO.WS.W.0001.000000T0000Z-170105T1200Z/
WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF CHESTER, QUINCY, AND BLUE CANYON
550 PM PST TUE JAN 3 2017

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

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY OVER THE MOUNTAINS. 

* TIMING...INCREASING SNOW THIS EVENING BECOMING VERY HEAVY 
  TONIGHT AND WEDNESDAY. 

* LOCATIONS...INTERSTATE 80, HIGHWAYS 36, 50, 70 AND 88 ALONG 
  THE WESTERN SIERRA SLOPES. 

* SNOW ACCUMULATIONS...4 TO 5 FEET ALONG THE CREST AND HIGHER 
  ELEVATIONS, 2 TO 3 FEET DOWN BETWEEN 5000 AND 5500 FEET 
  ELEVATION BY EARLY THURSDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ013-041200-
/O.CON.KSTO.WS.W.0001.000000T0000Z-170104T1200Z/
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-
INCLUDING THE CITY OF SHASTA DAM
550 PM PST TUE JAN 3 2017

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

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY. 

* TIMING...SNOW. PERIODS OF HEAVY SNOW INTO EARLY WEDNESDAY.

* LOCATIONS...INTERSTATE 5 NORTH OF REDDING.

* SNOW ACCUMULATIONS...12 TO 18 INCHES ABOVE 3000 FEET WITH 3 TO 6
  INCHES POSSIBLE DOWN TO 2000 FEET ELEVATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ063-041200-
/O.CON.KSTO.WW.Y.0001.000000T0000Z-170104T1200Z/
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
INCLUDING THE CITY OF ALDER SPRINGS
550 PM PST TUE JAN 3 2017

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

* MAIN IMPACT...HAZARDOUS WINTER TRAVEL DOWN TO LOW ELEVATIONS 
  WITH REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS 
  LIKELY OVER THE MOUNTAINS. 

* TIMING...HEAVIEST SNOWFALL INTO EARLY WEDNESDAY.

* LOCATIONS...COASTAL RANGE.

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF 4 TO 8 INCHES 
  ABOVE 3000 FEET. 

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.

&&

INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

674 
WWUS46 KSTO 041205
WSWSTO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
405 AM PST WED JAN 4 2017


CAZ013-014-041315-
/O.EXP.KSTO.WS.W.0001.000000T0000Z-170104T1200Z/
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-
BURNEY BASIN / EASTERN SHASTA COUNTY-
INCLUDING THE CITIES OF SHASTA DAM AND BURNEY
405 AM PST WED JAN 4 2017

...WINTER STORM WARNING WILL EXPIRE AT 4 AM PST EARLY THIS
MORNING...

ONLY LIGHT AMOUNTS OF ADDITIONAL SNOWFALL ARE EXPECTED TODAY. IN 
ADDITION...SNOW LEVELS HAVE CLIMBED TO OVER 3000 FEET. THEREFORE 
THE WINTER STORM WARNING FOR THE SHASTA COUNTY MOUNTAINS AND
BURNEY BASIN WILL BE ALLOWED TO EXPIRE.


INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ063-041315-
/O.EXP.KSTO.WW.Y.0001.000000T0000Z-170104T1200Z/
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
INCLUDING THE CITY OF ALDER SPRINGS
405 AM PST WED JAN 4 2017

...WINTER WEATHER ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS
MORNING...

ONLY LIGHT AMOUNTS OF ADDITIONAL SNOWFALL ARE EXPECTED TODAY. IN 
ADDITION...SNOW LEVELS HAVE CLIMBED TO OVER 4000 FEET. THEREFORE 
THE WINTER STORM WARNING FOR THE INTERIOR COASTAL RANGE WILL BE 
ALLOWED TO EXPIRE.


INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ068-069-050000-
/O.CON.KSTO.WS.W.0001.000000T0000Z-170105T1200Z/
WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF CHESTER, QUINCY, AND BLUE CANYON
405 AM PST WED JAN 4 2017

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

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL ABOVE 6000 FEET WITH 
  REDUCED VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS LIKELY 
  OVER THE MOUNTAINS. 

* TIMING...MODERATE TO OCCASIONALLY HEAVY SNOWFALL THROUGH THIS
  EVENING AND EARLY THURSDAY. 

* LOCATIONS...INTERSTATE 80, HIGHWAYS 36, 50, 70 AND 88 ALONG 
  THE WESTERN SIERRA SLOPES. 

* SNOW ACCUMULATIONS...ADDITIONAL SNOW ACCUMULATIONS OF 8 TO 18 
  INCHES FROM TODAY THROUGH TONIGHT ABOVE 6000 FEET WITH OVER 2 
  FEET MORE POSSIBLE AT THE HIGHEST ELEVATIONS ABOVE 8000 FEET. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED. STRONG WINDS ARE ALSO POSSIBLE THIS MORNING. THIS WILL 
MAKE TRAVEL VERY HAZARDOUS.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

000 
WWUS46 KSTO 042139
WSWSTO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
139 PM PST WED JAN 4 2017

.THIS FIRST STORM WILL MOVE OUT OF THE SIERRA NEVADA LATE
THURSDAY. THEN SEVERAL WAVES MOVE INTO THE REGION BEGINNING FRIDAY
NIGHT AND CONTINUE INTO TUESDAY WITH QUICKLY RISING SNOW LEVELS
SATURDAY.

CAZ068-069-050545-
/O.NEW.KSTO.WS.A.0001.170107T0800Z-170108T0600Z/
/O.CON.KSTO.WS.W.0001.000000T0000Z-170105T1200Z/
WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF CHESTER, QUINCY, AND BLUE CANYON
139 PM PST WED JAN 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST
THURSDAY...
...WINTER STORM WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A WINTER
STORM WATCH, WHICH IS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
SATURDAY EVENING. 

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL WITH REDUCED VISIBILITIES,
  CHAIN CONTROLS AND TRAFFIC DELAYS LIKELY OVER THE MOUNTAINS.

* TIMING...LIGHT TO MODERATE SNOWFALL THROUGH THIS EVENING AND
  EARLY THURSDAY. THE NEXT SYSTEM TO BRING MODERATE TO
  OCCASIONALLY HEAVY SNOWFALL FRIDAY NIGHT INTO SATURDAY NIGHT. 

* LOCATIONS...INTERSTATE 80, HIGHWAYS 36, 50, 70 AND 88 ALONG THE
  WESTERN SIERRA SLOPES ABOVE 6000 FEET WITH THE CURRENT STORM.
  THE SECOND STORM FRIDAY NIGHT INTO SATURDAY WILL HAVE GOOD SNOW
  ACCUMULATION DOWN TO 5000 FEET. 

* SNOW ACCUMULATIONS...ADDITIONAL SNOW ACCUMULATIONS OF 5 TO 10
  INCHES THROUGH TONIGHT ABOVE 6000 FEET. THE SECOND STORM FRIDAY
  NIGHT INTO SATURDAY MAY HAVE 8 TO 15 INCHES OF NEW SNOWFALL WITH
  AROUND 2 FEET ABOVE 8000 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED. STRONG WINDS ARE ALSO POSSIBLE THIS MORNING. THIS WILL 
MAKE TRAVEL VERY HAZARDOUS.

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.

&&

$$

CAZ063-050545-
/O.NEW.KSTO.WS.A.0001.170107T0800Z-170108T0600Z/
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
INCLUDING THE CITY OF ALDER SPRINGS
139 PM PST WED JAN 4 2017

...WINTER STORM WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A WINTER
STORM WATCH, WHICH IS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
SATURDAY EVENING. 

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL WITH REDUCED VISIBILITIES
  LIKELY OVER THE COASTAL RANGE.

* TIMING...MODERATE TO HEAVY SNOWFALL FRIDAY NIGHT INTO SATURDAY
  NIGHT.  

* LOCATIONS...COASTAL RANGE GENERALLY ABOVE 5000 FEET. 

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS OF 8 TO 12 INCHES ABOVE
  5000 FEET WITH 3 TO 6 INCHES DOWN TO 3500 FEET. 

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.

&&

$$
JCLAPP

047 
WWUS46 KSTO 051228
WSWSTO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
428 AM PST THU JAN 5 2017

.SNOWFALL WILL DIMINISH OVER THE SIERRA CASCADE RANGE TODAY WITH
ONLY LIGHT SNOWFALL ACCUMULATIONS EXPECTED. AFTER A BRIEF BREAK ON
FRIDAY...SIERRA SNOW WILL RESUME STARTING FRIDAY EVENING. NEW
SNOWFALL ACCUMULATIONS OF SEVERAL INCHES ARE EXPECTED SATURDAY
BEFORE A WARMING AIRMASS TAKES SNOW LEVELS ABOVE PASS LEVELS
SATURDAY NIGHT.

CAZ068-069-052030-
/O.EXP.KSTO.WS.W.0001.000000T0000Z-170105T1200Z/
/O.EXT.KSTO.WS.A.0001.170107T0600Z-170108T0600Z/
WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF CHESTER, QUINCY, AND BLUE CANYON
428 AM PST THU JAN 5 2017

...WINTER STORM WATCH NOW IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY EVENING...
...WINTER STORM WARNING HAS EXPIRED...

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL WITH REDUCED 
  VISIBILITIES, CHAIN CONTROLS AND TRAFFIC DELAYS LIKELY OVER 
  THE MOUNTAINS. 

* TIMING...LIGHT SNOWFALL TODAY. THE NEXT SYSTEM TO BRING MODERATE
  TO OCCASIONALLY HEAVY SNOWFALL FRIDAY NIGHT INTO SATURDAY NIGHT
  BEFORE RISING SNOW LEVELS KEEP SNOWFALL ABOVE PASS LEVELS. 

* LOCATIONS...INTERSTATE 80, HIGHWAYS 36, 50, 70 AND 88 ALONG THE
  WESTERN SIERRA SLOPES WITH MODERATE SNOW ACCUMULATION DOWN TO 
  5000 FEET.

* SNOW ACCUMULATIONS...5 TO 10 INCHES ABOVE 5000 FEET WITH UP TO 2
  FEET OF NEW SNOW AT THE HIGHEST ELEVATIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

CAZ063-052030-
/O.EXT.KSTO.WS.A.0001.170107T0600Z-170108T0600Z/
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
INCLUDING THE CITY OF ALDER SPRINGS
428 AM PST THU JAN 5 2017

...WINTER STORM WATCH NOW IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY EVENING...

* MAIN IMPACT: HAZARDOUS WINTER TRAVEL WITH REDUCED VISIBILITIES 
  LIKELY OVER THE COASTAL RANGE. 

* TIMING...MODERATE TO HEAVY SNOWFALL FRIDAY NIGHT INTO SATURDAY 
  NIGHT. 

* LOCATIONS...COASTAL RANGE GENERALLY ABOVE 4000 TO 5000 FEET.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS OF 4 TO 8 INCHES ABOVE
  THE 4000 TO 5000 FOOT LEVEL WITH UP TO 20 INCHES POSSIBLE
  HIGHEST ELEVATIONS. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

Area Forecast Discussion
National Weather Service Sacramento CA
1045 PM PST Sun Jan 1 2017

.Synopsis...
Colder system moves in today into Tuesday with snow levels possibly
dropping down into the foothills and northern Sac Valley.
Wet but warmer pattern for mid-week into next weekend.

&&

.Discussion...
Made adjustments to Advisory area as moisture starved system is not
conducive to significant snowfall on the downslope/lee side of the
coastal range. Orographic effects/upslope flow, however, are
conducive for widespread showers. Showers have greatly dissipated
over the coastal range and most of Shasta Co and this will be the
trend overnite. Then on Mon, the next vort max (energy) rotating
around the Pac NW low is progged to move across the far Nrn portion
of CA on Mon. Although most of the vort is "channeled" the lift will
continue just to its N mainly affecting Shasta/Siskiyou Counties.
Thus, the advisory for Shasta Co begins again midday Mon. Little
showery activity expected farther S over the Coastal Range until
Tue.

With the upper low over the Pac NW the cold air will spill into
Norcal but moisture won't sufficiently increase until the upper low
retrogrades, tapping Pacific moisture on Tue. The influx of milder
Pacific air will allow snow levels to rise, although some initial
wet bulbing and overrunning could occur.

In short, the holiday time period Mon, will have mostly light precip
with widespread moderate to heavy precip holding off until Tue. JHM

.Previous Discussion...

Happy New Year from the crew at NWS Sacramento. For this first day
of 2017, we bring you a forecast of colder weather with rain and
snow today through Tuesday followed by more wet weather in the
latter half of the week.

Scattered showers are already impacting the NorCal coastline and
they are beginning to cross over the Coastal Range into interior
NorCal. This storm is also bringing a much colder airmass as it
impacts our region. The coldest air should arrive tonight through
Monday morning causing low snow levels. Across the Coastal Range
and western Sierra slopes, snow levels will lower into the
foothills (1000 to 3000 feet) where we expect the heaviest snow
accumulations to occur above 2000 feet. However, the lowest snow
levels are expected in Shasta County between 500 to 1000 feet
which would impact the Redding vicinity. Here's the tricky part of
the forecast for Redding: models have been trending a little
warmer and raising snow levels, but cold air from the Shasta
County mountains is likely to drain into the Northern Sacramento
valley near Redding and that cold air could get trapped.
Therefore, if any showers occur near Redding, it would fall as
snow if that cold air is in place. However, if the winds are just
right and mix out the cold air or warm air overtakes the colder
air, then precipitation would fall as rain instead. It's one of
those scenarios where if the puzzle pieces all fit together at
the right time, then we could have snow near or even in Redding.
To make sure people are prepared for this possibility, we have
gone ahead and issued a Snow Advisory for the Northern Sacramento
Valley from tonight through Monday morning. We have also put up a
Snow Advisory along with the foothills of the Coastal Range &
Sierra from now through Tuesday matching the current Advisory for
the higher elevations. In general, snow accumulations should peak
between 1 to 2 feet over higher elevations above 3000 feet with 1
to 8 inches across the foothills between now through Tuesday night.

From Tuesday night into Wednesday, models are showing a warmer and
much wetter pattern as another surge of moisture moves into our
CWA. Snow levels will rise becoming 3500-5000 feet for most of our
forecast area except in Shasta County where they could be
2500-3500 feet. The Sierra could see an additional 4-12 inches of
snow on Wednesday into early Thursday.

Rain amounts in the valley from Sunday thru Tuesday will be light
south of I-80...up to a quarter of an inch with higher amounts up
to three-quarters of an inch north of I-80. Additional amounts of
0.5 to 1 inch possible on Wednesday depending on how model
solutions fare in the next few days.

JBB/CEO
&&
.EXTENDED DISCUSSION (Thursday THROUGH Sunday)

An active weather pattern is expected during the extended period
with increasing precipitation chances. Minor changes have been
made to the forecast as model output suggest different scenarios
late this week. Forecast uncertainty is greater on Thursday and
Friday as the GFS continues to indicate heavier orographic
precipitation over the northern Sierra. Meanwhile, the ECMWF and
GEM keep the forecast area mainly dry except for a few lingering
showers over higher terrain.

There's better agreement over the weekend where all the models
suggest a deep trough impacting the Pacific Northwest. An influx
of abundant subtropical moisture into CA will bring wet weather
during the extended period to interior NorCal. Snow levels could
be rising by the end of the forecast period. Overnight lows are
expected to remain in the low 40s across the Valley.

&&

.AVIATION...

Scattered showers at the Valley TAF sites with occasional MVFR
conditions. Possible snow showers with IFR conditions across the
northern Sacramento Valley mainly after 06z Monday. Widespread IFR
conditions with scattered snow showers over the mountains.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 10 PM PST Tuesday for Burney Basin
/ Eastern Shasta County-Clear Lake/Southern Lake County-
Motherlode-Mountains Southwestern Shasta County to Northern Lake
County-Northeast Foothills/Sacramento Valley-Northern Sacramento
Valley-Shasta Lake Area / Northern Shasta County-West Slope
Northern Sierra Nevada-Western Plumas County/Lassen Park.

&&