Winter Storm Warning 9, NWS Pocatello, ID

618 
WWUS45 KPIH 201009
WSWPIH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
309 AM MST TUE DEC 20 2016


IDZ018-202200-
/O.CON.KPIH.WS.W.0009.000000T0000Z-161221T0100Z/
SAWTOOTH MOUNTAINS-
INCLUDING THE CITIES OF...STANLEY...CLAYTON
309 AM MST TUE DEC 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* IMPACTS...COMBINATION OF HEAVY SNOW WITH SOUTHWEST WIND GUSTS 
  TO 30 MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. HIGHER 
  PEAKS AND RIDGES MAY SEE GUSTS OVER 40 MPH. 

* TIMING...SNOW AND WIND QUICKLY INCREASE THIS MORNING AND PEAK BY
  EARLY AFTERNOON. 

* SNOW ACCUMULATIONS...5 TO 12 INCHES WITH OVER 1 FOOT POSSIBLE ON
  THE HIGHEST PEAKS AND RIDGES. VERY LIGHT ACCUMULATION OF
  FREEZING RAIN ARE POSSIBLE IN AREAS ALONG THE SALMON RIVER
  INCLUDING THE HIGHWAY 75 CORRIDOR. 

* LOCATIONS...BANNER SUMMIT...STANLEY...CLAYTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ019-202200-
/O.CON.KPIH.WS.W.0009.000000T0000Z-161221T0700Z/
UPPER SNAKE HIGHLANDS-
INCLUDING THE CITIES OF...ST. ANTHONY...ASHTON...ISLAND PARK...
DRIGGS...VICTOR
309 AM MST TUE DEC 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...COMBINATION OF HEAVY SNOW WITH SOUTHWEST WIND GUSTS 
  TO 30 MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. HIGHER 
  PEAKS AND RIDGES MAY SEE GUSTS OVER 40 MPH. 

* TIMING...SNOW AND WIND WILL QUICKLY INCREASE THIS MORNING AND
  CONTINUE INTO THIS EVENING. 

* SNOW ACCUMULATIONS...4 TO 10 INCHES WITH OVER 1 FOOT POSSIBLE 
  ON THE HIGHEST PEAKS AND RIDGES. 2 TO 4 INCHES FROM DUBOIS TO 
  MONIDA PASS. 

* LOCATIONS...ISLAND PARK...TARGHEE PASS...ASHTON...ST.
  ANTHONY...DRIGGS AND PINE CREEK PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ031-202200-
/O.CON.KPIH.WS.W.0009.000000T0000Z-161221T0100Z/
BIG AND LITTLE WOOD RIVER REGION-
INCLUDING THE CITIES OF...HAILEY...KETCHUM...BELLEVUE
309 AM MST TUE DEC 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* IMPACTS...COMBINATION OF HEAVY SNOW WITH SOUTHWEST WIND GUSTS 
  TO 30 MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. HIGHER 
  PEAKS AND RIDGES MAY SEE GUSTS OVER 40 MPH. 

* TIMING...SNOW AND WIND QUICKLY INCREASE THIS MORNING AND PEAK BY
  EARLY AFTERNOON.

* SNOW ACCUMULATIONS...5 TO 12 INCHES ABOVE 6500 FEET WITH OVER 
  1 FOOT POSSIBLE FOR THE HIGHEST PEAKS AND RIDGES. 2 TO 4 
  INCHES BELOW 6500 FEET. 

* LOCATIONS...GALENA SUMMIT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ020-202200-
/O.CON.KPIH.WW.Y.0029.161220T1900Z-161221T0700Z/
UPPER SNAKE RIVER PLAIN-
INCLUDING THE CITIES OF...IDAHO FALLS...REXBURG
309 AM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
MIDNIGHT MST TONIGHT...

* IMPACTS...COMBINATION OF SNOW WITH SOUTHWEST WIND GUSTS TO 25 
  MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. 

* TIMING...HEAVIEST SNOW WILL ARRIVE BY EARLY AFTERNOON WITH PEAK
  WIND GUSTS LIKELY LATE AFTERNOON AND EVENING.

* SNOW ACCUMULATIONS...2 TO 4 INCHES WITH LESSER AMOUNTS WEST OF 
  INTERSTATE 15. 

* LOCATIONS...IDAHO FALLS...RIGBY AND REXBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

IDZ023-025-202200-
/O.CON.KPIH.WW.Y.0029.000000T0000Z-161221T0700Z/
CARIBOU HIGHLANDS-WASATCH MOUNTAINS/IDAHO PORTION-
INCLUDING THE CITIES OF...HENRY...SODA SPRINGS...DOWNEY...
LAVA HOT SPRINGS...MONTPELIER
309 AM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...COMBINATION OF SNOW WITH SOUTHWEST WIND GUSTS TO 30 MPH
  MAY PRODUCE DIFFICULT DRIVING CONDITIONS.

* TIMING...SNOW AND WIND WILL INCREASE THIS AFTERNOON PEAKING IN
  THE LATE AFTERNOON AND EVENING. 

* SNOW ACCUMULATIONS...2 TO 6 INCHES.

* LOCATIONS...MCCAMMON...FISH CREEK SUMMIT...SWAN VALLEY...SODA 
  SPRINGS...GEORGETOWN SUMMIT...MONTPELIER...BORDER SUMMIT AND 
  EMIGRATION PASS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

IDZ021-202200-
/O.CON.KPIH.WW.Y.0029.161220T1900Z-161221T0700Z/
LOWER SNAKE RIVER PLAIN-
INCLUDING THE CITY OF...POCATELLO
309 AM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
MIDNIGHT MST TONIGHT...

* IMPACTS...COMBINATION OF SNOW WITH SOUTHWEST WIND GUSTS TO 25 
  MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. 

* TIMING...HEAVIEST SNOW AND PEAK WIND GUSTS WILL BY EARLY
  AFTERNOON AND CONTINUE INTO THIS EVENING. VERY LIGHT
  ACCUMULATIONS OF FREEZING RAIN OR SLEET ARE FROM AROUND AMERICAN
  FALLS WESTWARD.

* SNOW ACCUMULATIONS...1 TO 3 INCHES.

* LOCATIONS...POCATELLO...FORT HALL...BLACKFOOT...ABERDEEN AND 
  AMERICAN FALLS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

404 
WWUS45 KPIH 201623
WSWPIH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
923 AM MST TUE DEC 20 2016

IDZ018-210100-
/O.CON.KPIH.WS.W.0009.000000T0000Z-161221T0100Z/
SAWTOOTH MOUNTAINS-
INCLUDING THE CITIES OF...STANLEY...CLAYTON
923 AM MST TUE DEC 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* IMPACTS...COMBINATION OF HEAVY SNOW WITH SOUTHWEST WIND GUSTS 
  TO 30 MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. HIGHER 
  PEAKS AND RIDGES MAY SEE GUSTS OVER 40 MPH. 

* TIMING...SNOW AND WIND QUICKLY INCREASE THIS MORNING AND PEAK 
  BY EARLY AFTERNOON. 

* SNOW ACCUMULATIONS...5 TO 12 INCHES WITH OVER 1 FOOT POSSIBLE 
  ON THE HIGHEST PEAKS AND RIDGES. VERY LIGHT ACCUMULATION OF 
  FREEZING RAIN ARE POSSIBLE IN AREAS ALONG THE SALMON RIVER 
  INCLUDING THE HIGHWAY 75 CORRIDOR. 

* LOCATIONS...BANNER SUMMIT...STANLEY...CLAYTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ019-210100-
/O.CON.KPIH.WS.W.0009.000000T0000Z-161221T0700Z/
UPPER SNAKE HIGHLANDS-
INCLUDING THE CITIES OF...ST. ANTHONY...ASHTON...ISLAND PARK...
DRIGGS...VICTOR
923 AM MST TUE DEC 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...COMBINATION OF HEAVY SNOW WITH SOUTHWEST WIND GUSTS 
  TO 30 MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. HIGHER 
  PEAKS AND RIDGES MAY SEE GUSTS OVER 40 MPH. 

* TIMING...SNOW AND WIND WILL QUICKLY INCREASE THIS MORNING AND 
  CONTINUE INTO THIS EVENING. 

* SNOW ACCUMULATIONS...4 TO 10 INCHES WITH OVER 1 FOOT POSSIBLE 
  ON THE HIGHEST PEAKS AND RIDGES. 2 TO 4 INCHES FROM DUBOIS TO 
  MONIDA PASS. 

* LOCATIONS...ISLAND PARK...TARGHEE PASS...ASHTON...ST. 
  ANTHONY...DRIGGS AND PINE CREEK PASS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ031-210100-
/O.CON.KPIH.WS.W.0009.000000T0000Z-161221T0100Z/
BIG AND LITTLE WOOD RIVER REGION-
INCLUDING THE CITIES OF...HAILEY...KETCHUM...BELLEVUE
923 AM MST TUE DEC 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* IMPACTS...COMBINATION OF HEAVY SNOW WITH SOUTHWEST WIND GUSTS 
  TO 30 MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. HIGHER 
  PEAKS AND RIDGES MAY SEE GUSTS OVER 40 MPH. 

* TIMING...SNOW AND WIND QUICKLY INCREASE THIS MORNING AND PEAK 
  BY EARLY AFTERNOON. 

* SNOW ACCUMULATIONS...5 TO 12 INCHES ABOVE 6500 FEET WITH OVER 
  1 FOOT POSSIBLE FOR THE HIGHEST PEAKS AND RIDGES. 2 TO 4 
  INCHES BELOW 6500 FEET. 

* LOCATIONS...GALENA SUMMIT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ017-022-210100-
/O.EXA.KPIH.WW.Y.0029.161220T1900Z-161221T0700Z/
EASTERN MAGIC VALLEY-SOUTH CENTRAL HIGHLANDS-
INCLUDING THE CITIES OF...BURLEY...RUPERT...HEYBURN...
MALAD CITY...OAKLEY...ROCKLAND
923 AM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT MST TONIGHT...

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A WINTER
WEATHER ADVISORY FOR A MIX OF RAIN...SNOW AND FREEZING RAIN...WHICH
IS IN EFFECT UNTIL MIDNIGHT MST TONIGHT.

* IMPACTS...COMBINATION OF RAIN...SNOW AND FREEZING RAIN ALONG
  WITH ROAD TEMPERATURES THAT ARE WELL BELOW FREEZING MAY PRODUCE
  VERY ICY CONDITIONS.

* TIMING...PRECIPITATION WILL BEGIN AFTER 2 PM AND CONTINUE INTO
  THE EARLY EVENING.

* ICE ACCUMULATIONS...LESS THAN ONE TENTH OF AN INCH.

* SNOW ACCUMULATIONS...AN INCH OR LESS.

* LOCATIONS...BURLEY...SHOSHONE...MALTA...SWEETZER SUMMIT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

IDZ020-210100-
/O.CON.KPIH.WW.Y.0029.161220T1900Z-161221T0700Z/
UPPER SNAKE RIVER PLAIN-
INCLUDING THE CITIES OF...IDAHO FALLS...REXBURG
923 AM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...COMBINATION OF SNOW WITH SOUTHWEST WIND GUSTS TO 25 
  MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. 

* TIMING...HEAVIEST SNOW WILL ARRIVE BY EARLY AFTERNOON WITH 
  PEAK WIND GUSTS LIKELY LATE AFTERNOON AND EVENING. 

* SNOW ACCUMULATIONS...2 TO 4 INCHES WITH LESSER AMOUNTS WEST OF 
  INTERSTATE 15. 

* LOCATIONS...IDAHO FALLS...RIGBY AND REXBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

IDZ021-210100-
/O.CON.KPIH.WW.Y.0029.161220T1900Z-161221T0700Z/
LOWER SNAKE RIVER PLAIN-
INCLUDING THE CITY OF...POCATELLO
923 AM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...COMBINATION OF SNOW WITH SOUTHWEST WIND GUSTS TO 25 
  MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. 

* TIMING...HEAVIEST SNOW AND PEAK WIND GUSTS WILL AFTER 2 PM AND
  CONTINUE INTO THIS EVENING. VERY LIGHT ACCUMULATIONS OF FREEZING
  RAIN OR SLEET IS POSSIBLE AS WELL FROM AROUND AMERICAN FALLS
  WESTWARD.

* SNOW ACCUMULATIONS...1 TO 2 INCHES.

* LOCATIONS...POCATELLO...FORT HALL...BLACKFOOT...ABERDEEN AND 
  AMERICAN FALLS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

IDZ023-025-210100-
/O.CON.KPIH.WW.Y.0029.000000T0000Z-161221T0700Z/
CARIBOU HIGHLANDS-WASATCH MOUNTAINS/IDAHO PORTION-
INCLUDING THE CITIES OF...HENRY...SODA SPRINGS...DOWNEY...
LAVA HOT SPRINGS...MONTPELIER
923 AM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...COMBINATION OF SNOW WITH SOUTHWEST WIND GUSTS TO 30 
  MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. 

* TIMING...SNOW AND WIND WILL INCREASE THIS AFTERNOON PEAKING IN 
  THE LATE AFTERNOON AND EVENING. 

* SNOW ACCUMULATIONS...2 TO 5 INCHES.

* LOCATIONS...MCCAMMON...FISH CREEK SUMMIT...SWAN VALLEY...SODA 
  SPRINGS...GEORGETOWN SUMMIT...MONTPELIER...BORDER SUMMIT AND 
  EMIGRATION PASS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

219 
WWUS45 KPIH 210058
WSWPIH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
558 PM MST TUE DEC 20 2016

IDZ018-210200-
/O.EXP.KPIH.WS.W.0009.000000T0000Z-161221T0100Z/
SAWTOOTH MOUNTAINS-
INCLUDING THE CITIES OF...STANLEY...CLAYTON
558 PM MST TUE DEC 20 2016

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MST THIS EVENING...

THE THREAT OF MODERATE TO HEAVY SNOW HAS ENDED OVER THE SAWTOOTH
MOUNTAINS AND THUS THE WINTER STORM WARNING WILL BE ALLOWED TO
EXPIRE AT 6 PM MST.

$$

IDZ031-210200-
/O.EXP.KPIH.WS.W.0009.000000T0000Z-161221T0100Z/
BIG AND LITTLE WOOD RIVER REGION-
INCLUDING THE CITIES OF...HAILEY...KETCHUM...BELLEVUE
558 PM MST TUE DEC 20 2016

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MST THIS EVENING...

THE THREAT OF MODERATE TO HEAVY SNOW HAS ENDED OVER THE BIG AND
LITTLE WOOD RIVER REGION AND THUS THE WINTER STORM WARNING WILL
BE ALLOWED TO EXPIRE AT 6 PM MST.

$$

IDZ019-210700-
/O.CON.KPIH.WS.W.0009.000000T0000Z-161221T0700Z/
UPPER SNAKE HIGHLANDS-
INCLUDING THE CITIES OF...ST. ANTHONY...ASHTON...ISLAND PARK...
DRIGGS...VICTOR
558 PM MST TUE DEC 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...COMBINATION OF HEAVY SNOW WITH SOUTHWEST WIND GUSTS 
  TO 30 MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. HIGHER 
  PEAKS AND RIDGES MAY SEE GUSTS OVER 40 MPH. 

* TIMING...SNOW AND WIND WILL GRADUALLY TAPER OFF THROUGH THE
  EVENING.

* SNOW ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF 2 TO 4 INCHES
  POSSIBLE, ESPECIALLY OVER MOUNTAIN PASSES THROUGH MIDNIGHT.

* LOCATIONS...ISLAND PARK...TARGHEE PASS...ASHTON...ST. 
  ANTHONY...DRIGGS AND PINE CREEK PASS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ020-210700-
/O.CON.KPIH.WW.Y.0029.000000T0000Z-161221T0700Z/
UPPER SNAKE RIVER PLAIN-
INCLUDING THE CITIES OF...IDAHO FALLS...REXBURG
558 PM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...BLOWING SNOW WILL LIKELY PRODUCE DIFFICULT DRIVING
  CONDITIONS THROUGH THE EVENING.

* TIMING...SNOWFALL WILL TAPER OFF FAIRLY QUICKLY THIS EVENING
  WHILE GUSTY WINDS CONTINUE THROUGH 9 PM MST BEFORE TAPERING OFF
  TOWARDS MIDNIGHT.

* LOCATIONS...IDAHO FALLS...RIGBY AND REXBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

IDZ021-210700-
/O.CON.KPIH.WW.Y.0029.000000T0000Z-161221T0700Z/
LOWER SNAKE RIVER PLAIN-
INCLUDING THE CITY OF...POCATELLO
558 PM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...BLOWING SNOW WILL LIKELY PRODUCE DIFFICULT DRIVING
  CONDITIONS THROUGH THE EVENING.

* TIMING...SNOWFALL WILL TAPER OFF EARLY THIS EVENING WITH GUSTY
  WINDS CONTINUING THROUGH 9 PM MST BEFORE DECREASING OVERNIGHT. 

* LOCATIONS...POCATELLO...FORT HALL...BLACKFOOT...ABERDEEN AND 
  AMERICAN FALLS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

IDZ023-025-210700-
/O.CON.KPIH.WW.Y.0029.000000T0000Z-161221T0700Z/
CARIBOU HIGHLANDS-WASATCH MOUNTAINS/IDAHO PORTION-
INCLUDING THE CITIES OF...HENRY...SODA SPRINGS...DOWNEY...
LAVA HOT SPRINGS...MONTPELIER
558 PM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...COMBINATION OF SNOW WITH SOUTHWEST WIND GUSTS TO 30 
  MPH MAY PRODUCE DIFFICULT DRIVING CONDITIONS. 

* TIMING...SNOW AND WIND CONTINUE THROUGH THE EVENING.

* SNOW ACCUMULATIONS...2 TO 5 INCHES.

* LOCATIONS...MCCAMMON...FISH CREEK SUMMIT...SWAN VALLEY...SODA 
  SPRINGS...GEORGETOWN SUMMIT...MONTPELIER...BORDER SUMMIT AND 
  EMIGRATION PASS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

IDZ017-022-210700-
/O.CON.KPIH.WW.Y.0029.000000T0000Z-161221T0700Z/
EASTERN MAGIC VALLEY-SOUTH CENTRAL HIGHLANDS-
INCLUDING THE CITIES OF...BURLEY...RUPERT...HEYBURN...
MALAD CITY...OAKLEY...ROCKLAND
558 PM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* IMPACTS...AREAS OF FREEZING RAIN NEAR BURLEY AND ACCUMULATING
  SNOW ACROSS THE SOUTH CENTRAL HIGHLANDS WILL CREATE DIFFICULT
  DRIVING CONDITIONS THROUGH THE EVENING. 

* TIMING...PRECIPITATION WILL END WITHIN THE EASTERN MAGIC VALLEY
  EARLY THIS EVENING WHILE CONTINUING ACROSS THE SOUTH CENTRAL
  HIGHLANDS. 

* SNOW ACCUMULATIONS...1 TO 3 INCHES POSSIBLE ESPECIALLY ACROSS
  SWEETZER SUMMIT.

* LOCATIONS...BURLEY...SHOSHONE...MALTA...SWEETZER SUMMIT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW... SLEET OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES... AND LIMITED
VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

$$

924 
WWUS45 KPIH 210501
WSWPIH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
1001 PM MST TUE DEC 20 2016

IDZ019-210615-
/O.CAN.KPIH.WS.W.0009.000000T0000Z-161221T0700Z/
UPPER SNAKE HIGHLANDS-
INCLUDING THE CITIES OF...ST. ANTHONY...ASHTON...ISLAND PARK...
DRIGGS...VICTOR
1001 PM MST TUE DEC 20 2016

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS CANCELLED THE
WINTER STORM WARNING FOR THE REST OF THE EVENING. 

THE THREAT OF MODERATE TO HEAVY SNOWFALL HAS ENDED. LIGHT SNOWFALL WITH
ADDITIONAL ACCUMULATIONS UP TO 2 INCHES ARE STILL POSSIBLE THROUGH
MIDNIGHT.

$$

IDZ017-020>023-025-210615-
/O.CAN.KPIH.WW.Y.0029.000000T0000Z-161221T0700Z/
EASTERN MAGIC VALLEY-UPPER SNAKE RIVER PLAIN-
LOWER SNAKE RIVER PLAIN-SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS-
WASATCH MOUNTAINS/IDAHO PORTION-
INCLUDING THE CITIES OF...BURLEY...RUPERT...HEYBURN...
IDAHO FALLS...REXBURG...POCATELLO...MALAD CITY...OAKLEY...
ROCKLAND...HENRY...SODA SPRINGS...DOWNEY...LAVA HOT SPRINGS...
MONTPELIER
1001 PM MST TUE DEC 20 2016

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS CANCELLED THE
WINTER WEATHER ADVISORY FOR THE REMAINDER OF THE EVENING.

THE THREAT OF MODERATE SNOWFALL HAS ENDED. LOCAL AREAS OF BLOWING
AND DRIFTING CAN BE EXPECTED THROUGH MIDNIGHT WITH LESS THAN 2
INCHES OF ADDITIONAL ACCUMULATION.

$$

Area Forecast Discussion
National Weather Service Pocatello ID
325 AM MST Mon Dec 19 2016

.SHORT TERM...Today through Tuesday night. It remains pretty cold
across eastern Idaho this morning. We have seen some fluctuations
overnight based on any fog sloshing around and higher clouds
moving in from the northwest. Also, under the stratus deck in the
northeast corner we are seeing light snow/flurries and that will
continue this morning. We should see some moderation in
temperatures but we went well under what the numbers say we SHOULD
reach this afternoon. That is based on just how cold it is this
morning and the lack of mixing out strong inversions in place. We
will see light snow moving through the central mountains and
eastern highlands this afternoon and evening. The winds are
already picking up and we do expect some blowing snow in some
places today but nothing necessarily widespread except on higher
peaks and a few drainage areas.

The next storm will be quick hitter late tonight and Tuesday but
will pack quite a wallop. First, strong winds will continue and
even ramp up some more tomorrow. This will increase the likelihood
of blowing snow especially in the mountains. Next up for
discussion is snow in the mountains and a messy mix for the lower
elevations. After midnight, snow will rapidly increase across the
central mountains and to some extent in the Big Hole Mountains and
along the Wyoming border from Yellowstone to Driggs. The rest of
the area will be dry. Snow will continue to increase across the
central mountains and Upper Snake Highlands in the morning. The
NAM is a bit quicker to introduce light precipitation farther
south, but by afternoon we will starting see that shift. By later
afternoon and evening, most of the precipitation will already be
shifting into the southern highlands and continuing across the
eastern highlands. By late tomorrow night, all that's left is some
lingering snow extending across the eastern highlands. There could
be a little enhancement thanks to some upslope/weak convergence
band from around Rexburg up toward St Anthony. MOST folks will see
snow. We are still dealing with a complicated situation across the
southern Snake Plain, Magic Valley and south-central valleys.
Looking at the latest soundings, while there is some potential for
light freezing rain/sleet around Pocatello westward...the best
chance will likely be from around Coldwater west across the Magic
Valley and south from there. It is likely that along and west of
I-84, lower elevations will mix out to rain. Any frozen
precipitation will be light but mixed with snow and already slick
roads, it will not for any relief for travel especially where
roads are still snowy or icy. The highest snow amounts will be in
the Sawtooths were up to a foot (and perhaps a bit higher) is
possible. The second "max" for snowfall will be the Upper Snake
Highlands from Island Park south to the Big Hole Range. Amounts in
the 6-12" range are possible, but expect some shadowing in the
Teton Valley due to strong downslope conditions. For the rest of
our mountainous areas, looking for 1-4 inches with up to 6" across
the Caribou Highlands south into the Bear Lake area. For the Snake
Plain and Magic Valley, only look for 1-3". Again, that could mix
with some light frozen precipitation. For those areas, where we
are looking to mix out, little accumulation of any
snow/sleet/freezing rain to be minimal. We will leave the current
watches and SPS in place and the day shift sort things out. Keyes

.LONG TERM...Wednesday through Monday night. Upper ridging will keep
the fcst area dry thru Thu morn...but a minor upper wave moves into
the Pac NW on Thu. This system will bring light snow mainly to the
mtns Thu and Thu night. Precip diminishes somewhat on Fri...but
models now moving a much deeper trof into the west coast by Fri eve.
This is a significant change from earlier model runs...so will
approach with some caution here. This scenario would greatly
increase chances for snow on Sat. Will raise precip chances quite a
bit for Sat...but not jump in completely until the models show more
of a steady trend. Both GFS and ECMWF continue the snow into Sun...
with a deep upper low dominating the west. Drier conditions expected
on Mon. Hedges

&&

.AVIATION...VFR conditions prevail this morn...except for KPIH.
Local effects resulting in dense fog/low cigs will continue until
mid morn. Some patchy low clds in the upper Snake Plain may
occasionally impact KIDA this morn. A new system moves into the
central mtns tonight...bringing snow to KSUN. Hedges

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Winter Storm Watch from Tuesday morning through Tuesday evening
for IDZ018-019-031.

&&