Snow Avalanche Guidance
Issued by NWS Riverton, WY

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399
FWUS45 KRIW 092018
SAGRIW

FORECAST FOR BRIDGER-TETON NATIONAL FOREST AVALANCHE CENTER
NATIONAL WEATHER SERVICE RIVERTON WY
118 PM MST FRI DEC 9 2016


.DISCUSSION...

...WINTER STORM WARNING IN EFFECT THROUGH SATURDAY AFTERNOON...

ARCTIC AIRMASS CURRENTLY BEING REPLACED BY A PACIFIC AIRMASS
TODAY...WITH WINDS INCREASING AND BECOMING QUITE BRISK AT TIMES
TONIGHT THROUGH SATURDAY AFTERNOON. WITH 1 TO 6 INCHES OF SNOW
HAVING FALLEN SINCE LAST NIGHT, SNOWFALL WILL BEGIN TO INCREASE
ONCE AGAIN ACROSS THE FORECAST AREA THIS AFTERNOON FROM THE
SOUTHWEST...ANOTHER 1 TO 4 INCHES THROUGH THE THE REST OF TODAY.
THEN HEAVY SNOW LIKELY...MIXING WITH THE THOSE WINDS TONIGHT THROUGH
AT LEAST MID AFTERNOON SATURDAY...WITH BLOWING AND DRIFTING SNOW AND
NEAR ZERO VISIBILITY AT TIMES. TOTAL SNOWFALL ACCUMULATION FROM
THURSDAY NIGHT THROUGH THE DAY SATURDAY COULD REACH 20 TO 30 OR
MORE INCHES IN THE TETONS AND GROS VENTRE MOUNTAINS WITH 10 TO 20
INCHES IN THE VALLEYS. SNOW SHOWERS LINGER THROUGH THE REST OF
SATURDAY EVENING BEFORE INCREASING ONCE AGAIN SUNDAY AFTERNOON AND
SUNDAY NIGHT...SLIGHTLY HEAVIER SNOWFALL EXPECTED EARLY MONDAY
MORNING. PERIODS OF LIGHT SNOW WILL CONTINUE THROUGH AT LEAST MONDAY
NIGHT BEFORE FINALLY ENDING. SNOW/SLOPE INSTABILITY COULD OCCUR AS
RELATIVELY LARGE DIFFERENCES IN SNOW DENSITY AND TEXTURE OCCUR OVER
A THIN INTERFACE WITH THE HIGHER DENSITY SNOW SITTING ON TOP OF LOWER
DENSITY SNOW. ALSO, WINDY CONDITIONS TONIGHT THROUGH SATURDAY
WILL EXACERBATE THE SITUATION.

FORECASTER...BRAUN

WYZ012-101115-
RENDEZVOUS MOUNTAIN-TETON WY
43.59N 110.89W ELEV. 10318 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      19          24           9          13           4
TEMP          22 20 20 20 20 19 19 20 24 22 20 17 13 11  9 11 13  9  9  6  4  8
DEWPT         18 16 18 17 19 18 17 17 20 20 18 15 11  8  7  8  9  6  6  4  3  6
RH            84 84 92 88 96 96 92 88 84 92 92 92 91 87 91 87 84 87 87 91 95 91
WIND DIR      SW SW SW SW SW SW SW SW SW SW  W  W  W  W  W SW  W  W SW  W SW SW
WIND SPD      29 21 21 21 24 25 24 23 25 25 27 21 19 18 18 20 20 21 23 24 25 23
WIND GUST     41 33 33 33 36 37 35 33 37 37 40 32 28 26 27 32 31 29 32 34 35 32
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUDS(%)    100100100100100100100100100 99 99 96 96 99 99 90 90 90 90 95 95 95
POP 12HR                    100         100          70          70          80
QPF 12HR                   0.74        0.60        0.29        0.26        0.30
SNOW 12HR                    12          10           5           4           5
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  L  L  C  C  L  L  L  L  L  L  L  L  L
OBVIS         BS
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          11       4     7      -6     8      -3    12       4     9
TEMP           9  8  6    4  6  1 -2   -5  5  3  1   -2  9  8  7    4  8  3
DEWPT          5  0  4    2  3 -4 -5   -8 -2 -9 -7   -6  4  1  3    2  4 -3
PWIND DIR        SW      SW     W       W     W      SW    SW      SW     W
WIND CHAR        WY      BZ    BZ      GN    GN      GN    GN      BZ    GN
AVG CLOUDS    OV OV OV   OV OV OV BK   BK BK BK BK   BK OV OV OV   OV OV OV
POP 12HR         80      60    50      40    40      40    30      60    50
SNOW                 C    C  C  C  C    C  C  S  C    C  C  C  C    C  C  C
SNOWSHWRS      L  L

$$

WYZ013-101115-
JACKSON AIRPORT-TETON WY
43.60N 110.73W ELEV. 6451 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      25          34          16          24          14
TEMP          24 25 26 26 26 26 26 29 34 32 32 28 23 21 16 21 24 17 17 16 14 16
DEWPT         20 22 24 25 25 25 24 21 28 29 29 25 18 15 12 14 18 13 13 11 12 14
RH            84 88 92 96 96 96 92 72 78 88 88 88 81 77 84 74 77 84 84 80 92 92
WIND DIR       S  S  S  S SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
WIND SPD       6 12 12 12 14 14 13 13 14 13 12 10  8  6  5 11 14 11 13 13 14 10
WIND GUST              19 21 21 20 20 21 20 19                21
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV BK BK OV OV OV OV OV
CLOUDS(%)    100100100100100100100100100 94 94 93 93 94 94 77 77 82 82 86 86 84
POP 12HR                     90         100          60          60          70
QPF 12HR                   0.43        0.35        0.08        0.07        0.11
SNOW 12HR                     7           6           1           1           2
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  L  L  C  C  C  C  C  C  L  L  L  L  L
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          24      11    19      -6    12      -5    21       8    16
TEMP          21 20 13   12 17 11 -2   -3  7  7 -2   -3 13 17 10    9 14 11
DEWPT         14 14 11    9 11  4 -4   -5  1 -1 -4   -5  8 11  8    7  9  5
PWIND DIR        SW      SW    SW      NW    SE       S     S      SW    SW
WIND CHAR        GN      GN    GN      LT    LT      LT    LT      LT    LT
AVG CLOUDS    OV BK OV   OV OV BK BK   BK SC BK BK   BK OV OV OV   OV OV OV
POP 12HR         60      40    40      30    20      30    30      50    40
SNOW                 C    C  C  S  S    S  S  S  S    S  C  S  C    C  C  C
SNOWSHWRS      L  C

$$

WYZ012-101115-
SNOW KING MOUNTAIN-TETON WY
43.46N 110.76W ELEV. 7810 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      25          31          17          21          14
TEMP          27 25 25 25 25 25 25 27 31 29 28 25 19 17 17 17 21 17 16 14 14 15
DEWPT         22 24 24 24 24 24 24 23 27 26 26 24 16 14 14 12 16 13 12 11 13 13
RH            81 96 96 96 96 96 96 85 85 88 92 96 88 88 88 80 81 84 84 88 96 92
WIND DIR       E  S  S  S  S  S SW SW SW SW SW SW SW SW SW SW SW  W SW SW SW SW
WIND SPD       9 12 11 13 12 12 12 12 12 12 12 11  9  9  9 12 14 10 12 11 14 11
WIND GUST           18    19          19    19                21
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUDS(%)     99100100100100100100100100 98 98 95 95 97 97 83 83 90 90 94 94 88
POP 12HR                    100         100          70          60          70
QPF 12HR                   0.51        0.43        0.08        0.11        0.13
SNOW 12HR                     8           7           1           2           2
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  L  L  C  C  L  L  L  L  L  L  L  L  L
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          20      13    16      -2    13       0    18      10    14
TEMP          18 14 14   14 15  2  2    0  8  3  3    1 13 12 12   11 13  4
DEWPT         14 12 10   11  9 -1 -1   -3  0 -1 -1   -1  8 10 10   10  8  1
PWIND DIR        SW      SW    SW       W     E       S     S      SW     W
WIND CHAR        BZ      GN    GN      GN    LT      LT    LT      GN    LT
AVG CLOUDS    OV BK OV   OV OV OV BK   BK BK BK BK   BK OV OV OV   OV OV OV
POP 12HR         70      50    50      30    30      30    30      50    40
SNOW                 C    C  C  C  C    C  C  S  S    C  C  S  C    C  C  C
SNOWSHWRS      L  L

$$

WYZ012-101115-
FREDS MOUNTAIN-TETON WY
43.79N 110.93W ELEV. 9840 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      21          27          12          16           7
TEMP          24 22 22 22 22 21 21 27 27 26 24 22 17 15 12 15 16 11 11  9  7  9
DEWPT         21 21 16 18 18 17 17 23 23 24 22 20 13 13 11 10 12  9  8  6  5  7
RH            88 96 77 84 84 84 84 85 85 92 92 92 84 92 96 80 84 91 87 87 91 91
WIND DIR      SW SW SW SW SW SW SW SW SW SW  W SW  W SW SW SW  W  W SW  W SW SW
WIND SPD      18 20 19 20 23 23 21 20 23 24 23 19 17 14 16 18 20 20 21 20 23 19
WIND GUST     25 31 29 31 34 33 32 32 34 36 34 28 25 21 23 27 31 28 29 28 32 26
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUDS(%)    100100100100100100100100100 97 97 96 96 98 98 89 89 90 90 95 95 92
POP 12HR                    100         100          70          70          80
QPF 12HR                   0.69        0.54        0.26        0.20        0.27
SNOW 12HR                    11           9           4           3           4
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  L  L  C  C  L  L  L  L  L  L  L  L  L
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          14       7    10      -4    11      -1    15       6    10
TEMP          12  9  9    8  9  1  0   -2  6  3  3    1 10  9  9    7  9  3
DEWPT          7  6  4    2  5 -1-14  -16 -1  0 -4   -7  6  8  3    0  5  1
PWIND DIR        SW      SW    SW      NW     W       S    SW      SW    SW
WIND CHAR        WY      BZ    GN      GN    LT      GN    GN      GN    GN
AVG CLOUDS    OV OV OV   OV OV BK BK   BK SC BK BK   BK OV OV OV   OV OV OV
POP 12HR         70      60    50      30    30      30    30      60    40
SNOW                 C    C  C  C  C    C  C  S  C    C  C  C  C    C  C  C
SNOWSHWRS      L  L

$$

WYZ024-101115-
BLIND BULL SUMMIT-LINCOLN WY
42.97N 110.62W ELEV. 9000 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      21          27          11          15           6
TEMP          22 21 21 21 21 21 21 24 27 25 25 21 16 13 11 12 15 11 11  7  6  8
DEWPT         21 19 18 19 18 19 18 21 23 21 21 21 14 11  9  9 11  9  8  4  4  7
RH            96 92 88 92 88 92 88 88 85 84 84100 92 91 91 87 84 91 87 87 91 96
WIND DIR       W SW SW SW SW SW SW SW SW  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD      13 13 12 13 14 14 14 14 14 14 17 16 14 14 13 14 18 16 16 16 16 12
WIND GUST              20 21 23 23 23 23 21 25 24 21 21 21 23 27 23 23    23
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV BK BK OV OV OV OV OV
CLOUDS(%)    100100100100100100100100100 99 99 98 98 97 97 80 80 82 82 89 89 86
POP 12HR                    100         100          80          60          70
QPF 12HR                   0.45        0.52        0.19        0.15        0.19
SNOW 12HR                     7           8           3           2           3
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  L  L  C  C  L  L  L  L  L  L  L  L  L
OBVIS         BS
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          13       7    12      -3    11       1    17       8    12
TEMP          11  9  7    7 10  3 -2   -3  6  5  2    2 11 11  8    8 11  2
DEWPT          9  6  5    3  6 -1 -9  -10  0 -2 -2   -3  8  7  5    4  8 -2
PWIND DIR         W       W     W       W     W      SW    SW      SW     W
WIND CHAR        BZ      BZ    GN      GN    LT      GN    GN      GN    GN
AVG CLOUDS    OV OV OV   OV OV OV BK   BK BK BK OV   BK OV OV OV   OV OV OV
POP 12HR         70      50    50      40    40      40    30      60    40
SNOW                 C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C
SNOWSHWRS      L  C

$$

WYZ024-101115-
MOUNT COFFIN-LINCOLN WY
42.64N 110.64W ELEV. 10870 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      19          23           8          11           3
TEMP          21 19 19 19 19 19 19 23 22 22 20 16 14 11  8  9 10 11  9  4  3  4
DEWPT         16 16 16 17 19 18 18 20 18 19 18 15 13  9  7  7  6  8  5  0  1  2
RH            81 88 88 92100 96 96 88 84 88 92 96 96 91 96 91 83 87 83 83 91 91
WIND DIR       W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD      29 23 25 24 25 26 24 23 23 21 27 26 25 24 23 23 23 20 20 21 26 24
WIND GUST     41 34 36 35 37 39 36 33 33 33 40 40 37 36 34 33 35 29 29 29 36 33
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUDS(%)    100100100100100100100100100100100 99 99 96 96 81 81 85 85 91 91 87
POP 12HR                    100         100         100          70          70
QPF 12HR                   0.53        0.54        0.30        0.17        0.23
SNOW 12HR                     9           9           5           3           4
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  D  D  C  C  L  L  L  L  L  L  L  L  L
OBVIS         BS
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          10       5     9       0     9       2    16       8    11
TEMP           8  6  6    5  8  2  2    1  6  4  3    2 11 10 10    9 10  0
DEWPT          2  1  0    3  2 -2 -1   -1 -3 -2 -1   -1  3  6  7    7  3 -4
PWIND DIR         W       W     W       W     W       W     W       W     W
WIND CHAR        WY      WY    BZ      BZ    GN      GN    BZ      BZ    BZ
AVG CLOUDS    OV BK OV   OV OV OV OV   OV BK BK OV   OV OV OV OV   OV OV OV
POP 12HR         70      50    50      50    50      40    30      60    50
SNOW                 C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C
SNOWSHWRS      L  C

$$

WYZ024-101115-
COMMISSARY RIDGE-LINCOLN WY
42.57N 110.73W ELEV. 9340 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      22          26          12          16           7
TEMP          26 24 23 22 22 22 22 22 26 25 24 23 19 16 12 13 16 13 13  8  7  8
DEWPT         19 19 18 18 19 18 17 16 20 19 18 18 14 10  8  7  9  9  7  2  4  5
RH            74 81 81 84 88 84 81 77 78 78 77 81 80 77 84 76 73 84 76 76 87 87
WIND DIR       W SW SW SW SW SW SW SW  W  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD      24 18 18 19 18 19 18 17 17 17 19 19 18 18 17 17 19 18 17 18 21 19
WIND GUST     33 26 27 28 27 28 27 25 26 25 28 29 27 27 26 26 28 25 24 25 29 27
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUDS(%)    100100100100100100100100100100100 99 99 97 97 81 81 87 87 91 91 88
POP 12HR                    100         100         100          60          70
QPF 12HR                   0.50        0.55        0.27        0.14        0.22
SNOW 12HR                     8           9           4           2           4
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  D  D  C  C  L  L  L  L  L  L  L  L  L
OBVIS         BS
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          15       9    14       2    14       4    20      10    15
TEMP          13 12 10    9 13  7  3    2 11  8  5    4 16 14 11   10 14  7
DEWPT          5  2  1    4  5  1 -3   -3  1  1 -1   -1  7  8  6    6  6  2
PWIND DIR         W       W     W       W     W       W    SW      SW     W
WIND CHAR        WY      BZ    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    OV OV OV   OV OV OV OV   OV BK BK OV   OV OV OV OV   OV OV OV
POP 12HR         70      50    50      50    50      40    30      60    50
SNOW                 C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C
SNOWSHWRS      L  C

$$

WYZ024-101115-
SPRING CREEK DIVIDE SNOTEL-LINCOLN WY
42.53N 110.66W ELEV. 9000 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      23          27          12          16           7
TEMP          27 25 24 23 23 23 23 27 27 27 26 23 20 17 12 14 16 16 14  9  7  8
DEWPT         20 21 20 21 21 20 20 22 22 22 19 20 17 12 10  9 10 14 10  4  4  5
RH            74 84 84 92 92 88 88 81 81 81 74 88 88 80 91 80 77 92 84 80 87 87
WIND DIR       W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD      24 17 18 18 18 18 17 16 17 16 18 19 17 18 17 16 20 18 17 17 20 17
WIND GUST     35 28 29 28 29 29 27 26 27 26 28 29 27 28 26 26 31 26 25 26 31 25
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV BK BK OV OV OV OV OV
CLOUDS(%)    100100100100100100100100100100100 99 99 96 96 78 78 83 83 90 90 85
POP 12HR                    100         100         100          60          70
QPF 12HR                   0.50        0.54        0.29        0.12        0.21
SNOW 12HR                     8           9           5           2           3
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  D  D  C  C  L  L  C  C  L  L  L  L  L
OBVIS         BS
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          15       9    14       1    13       3    20      10    15
TEMP          14 12 10    9 13  7  2    2 11  7  4    3 17 14 11   10 14  6
DEWPT          7  4  1    5  6  2 -2   -3  1  2  0   -2  9 10  8    7  6  2
PWIND DIR         W       W     W       W     W       W    SW      SW     W
WIND CHAR        BZ      BZ    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    OV OV OV   OV OV OV OV   OV BK BK OV   OV OV OV OV   OV OV OV
POP 12HR         70      40    50      50    50      40    30      50    40
SNOW                 C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C
SNOWSHWRS      L  C

$$

WYZ015-101115-
LAVA MOUNTAIN-FREMONT WY
43.66N 110.02W ELEV. 10430 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      18          22           8          11           3
TEMP          22 20 19 19 19 18 18 21 22 20 17 15 11 10  8  8 11  7  7  6  4  3
DEWPT         14 17 17 17 17 18 18 18 19 19 16 15 10  8  7  5  8  5  6  4  3  2
RH            71 88 92 92 92100100 88 88 96 96100 96 91 96 87 87 91 96 91 95 95
WIND DIR       W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD      16 23 23 21 25 25 24 23 25 26 28 23 20 19 20 23 21 21 21 23 25 20
WIND GUST     23 34 33 33 37 37 35 34 36 39 43 34 31 28 32 33 32 29 31 32 34 29
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUDS(%)     99100100100100100100100100 97 97 95 95 95 95 84 84 88 88 94 94 92
POP 12HR                    100         100          70          70          70
QPF 12HR                   0.51        0.49        0.17        0.16        0.22
SNOW 12HR                     8           8           3           3           4
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  L  L  C  C  L  L  L  L  L  L  L  L  L
OBVIS         BS
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN           9       2     5      -9     6      -7    11       5     8
TEMP           7  6  4    2  4 -1 -6   -8  2  0 -4   -6  6  8  6    5  7  2
DEWPT          3  3  0    0  0 -4 -8  -10 -7 -6 -8   -8  1  5  4    4  3 -2
PWIND DIR         W       W     W       W     W      SW    SW      SW     W
WIND CHAR        WY      GN    GN      GN    LT      LT    GN      GN    LT
AVG CLOUDS    OV OV OV   OV OV BK BK   BK SC BK BK   BK OV OV OV   OV OV OV
POP 12HR         70      50    40      30    30      30    30      60    50
SNOW                 C    C  C  C  S    C  C  S  S    C  C  C  C    C  C  C
SNOWSHWRS      L  L

$$

WYZ015-101115-
TOGWOTEE MOUNTAIN LODGE-TETON WY
43.83N 110.19W ELEV. 8710 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      22          28          13          17          10
TEMP          23 22 22 22 22 22 22 25 28 26 25 23 17 15 13 14 17 13 13 12 10 10
DEWPT         15 21 20 19 19 21 20 21 23 24 23 20 14 12 11 10 11  9  9  7  8  9
RH            71 96 92 88 88 96 92 84 81 92 92 88 88 88 91 84 77 84 84 80 91 96
WIND DIR      NW SW SW SW SW SW  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD      10 14 14 14 17 17 16 16 17 16 16 13 11  9  8 12 16 14 17 17 16 12
WIND GUST        21 21 21 25 25 23 23 25 24 24 20             24          23
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV BK BK OV OV OV OV OV
CLOUDS(%)     99100100100100100100100100 99 99 99 99 96 96 80 80 94 94 95 95 89
POP 12HR                    100         100          70          60          70
QPF 12HR                   0.52        0.45        0.11        0.09        0.17
SNOW 12HR                     8           7           2           2           3
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  L  L  C  C  L  L  L  L  L  L  L  L  L
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          16       7    11      -7     8      -6    16       8    11
TEMP          14 10  9    7  9  0 -2   -7  2 -1 -2   -6  7 11 10    8 10  2
DEWPT         10  8  6    5  5 -3 -6   -9 -3 -4 -8   -8  3 10  7    7  7  0
PWIND DIR         W       W     W      NW    SE      SW    SW      SW     W
WIND CHAR        GN      GN    GN      LT    LT      LT    LT      LT    LT
AVG CLOUDS    OV BK OV   OV OV BK BK   BK SC SC BK   BK OV OV OV   OV OV OV
POP 12HR         70      50    40      30    30      30    30      60    40
SNOW                 C    C  C  S  S    S  S  S  S    S  C  S  C    C  C  C
SNOWSHWRS      L  C

$$

WYZ015-101115-
BROOKS LAKE LODGE-FREMONT WY
43.73N 110.01W ELEV. 9340 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      21          26          10          14           7
TEMP          23 22 22 21 21 21 21 24 26 24 23 20 14 12 10 11 14 10 10  9  8  7
DEWPT         19 19 19 19 19 19 19 20 21 20 21 17 11  8  7  6  8  6  6  5  4  5
RH            84 88 88 92 92 92 92 84 81 84 92 88 88 84 87 80 76 83 83 83 83 91
WIND DIR      NW  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD      10 17 16 16 19 19 17 17 18 19 19 16 13 12 12 16 18 18 19 19 18 14
WIND GUST        26 24 24 28 28 26 25 26 28 28 23 20 19 19 24 27 26 26 27 26 21
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV BK BK OV OV OV OV OV
CLOUDS(%)     99100100100100100100100100 97 97 96 96 95 95 79 79 84 84 91 91 88
POP 12HR                    100         100          70          60          70
QPF 12HR                   0.49        0.45        0.12        0.11        0.18
SNOW 12HR                     8           7           2           2           3
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  O  L  L  C  C  L  L  C  C  L  L  L  L  L
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          13       5     9      -8     7      -8    14       6    10
TEMP          11  9  7    5  8  1 -4   -8  3  0 -4   -8  7 10  8    6  9  2
DEWPT          6  4  2    1  2 -4 -8  -12 -7 -7 -9  -11  1  6  5    4  4 -3
PWIND DIR         W       W     W       W    NW      SW    SW      SW     W
WIND CHAR        BZ      GN    GN      GN    LT      LT    LT      LT    LT
AVG CLOUDS    OV BK OV   OV OV BK BK   BK SC SC BK   BK OV OV OV   OV OV OV
POP 12HR         70      50    40      30    30      30    30      60    50
SNOW                 C    C  C  C  S    C  S  S  S    S  C  S  C    C  C  C
SNOWSHWRS      L  L

$$

IDZ019-101115-
PINE CREEK PASS SNOTEL-TETON ID
43.57N 111.21W ELEV. 6720 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      29          34          22          23          21
TEMP          30 29 29 29 29 29 29 33 33 26 24 24 24 23 22 23 23 22 21 21 21 21
DEWPT         24 27 27 26 26 26 26 29 27 23 21 20 20 19 18 18 17 18 18 17 17 17
RH            78 92 92 88 88 88 88 85 78 88 88 84 84 84 84 81 77 84 88 84 84 84
WIND DIR      SW SW SW  S SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
WIND SPD       9 13 11 16 14 14 12 13 16 11 14 11 11 11 11 12 12 14 14 16 16 16
WIND GUST        21 19 24 23 23 20 21 24    23             20 20 23 23 24 24 24
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUDS(%)    100100100100100100100100100 94 94100100 94 94 94 94 95 95 96 96 94
POP 12HR                    100          90          60          60          60
QPF 12HR                   0.58        0.44        0.13        0.11        0.14
SNOW 12HR                     8           7           2           2           3
SNOW                                                  C  C  L  L  C  C  L  L  L
SNOWSHWRS      O  O  O  O  O  D  D  D  D  L  L  C  C
WINTER STORM   W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          24      19    19       1    13       7    16       5    16
TEMP          24 21 20   19 17  7  3    2 11  9  8    8 15  9  7    6 14  4
DEWPT         18 17 15   15 12  2 -1   -2  5  6  5    5 10  6  3    3 10  1
PWIND DIR        SW      SW    SW       W    SW      SE     S       S    SW
WIND CHAR        BZ      GN    GN      LT    LT      LT    LT      LT    GN
AVG CLOUDS    OV OV OV   OV OV OV OV   OV SC SC BK   BK BK BK OV   OV OV OV
POP 12HR         60      40    40      30    30      30    50      50    40
SNOW           L  L  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C

$$

IDZ023-101115-
SHEEP MOUNTAIN SNOTEL - BINGHAM ID
43.21N 111.69W ELEV. 6570 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      29          34          22          25          19
TEMP          32 30 30 30 30 29 29 33 33 27 25 26 24 24 22 24 25 22 21 21 20 20
DEWPT         24 27 27 24 26 23 24 26 25 24 22 20 20 18 17 18 17 17 16 15 15 13
RH            72 88 88 78 85 78 81 75 72 88 88 78 84 77 81 77 71 81 81 77 81 74
WIND DIR      SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
WIND SPD      14 19 17 25 23 23 19 21 20 17 20 19 17 21 21 19 19 23 23 23 23 23
WIND GUST     23 27 25 35 33 33 27 32 31 25 31 27 25 32 32 27 27 33 33 33 33 33
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUDS(%)    100100100100100100100100100 95 95100100 92 92 93 93 93 93 94 94 90
POP 12HR                    100          90          60          70          50
QPF 12HR                   0.50        0.37        0.15        0.11        0.06
SNOW 12HR                     7           6           2           2           1
SNOW                                                  L  L  L  L  C  C  C  C  C
SNOWSHWRS      O  O  O  O  O  D  D  D  D  L  L  L  L
WINTER STORM   W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          25      17    18       5    14      12    19       8    17
TEMP          23 21 19   18 18 11  9    7 12 13 13   12 17 13 11   10 15  7
DEWPT         17 17 14   12 12  6  2   -1  4 10  8    7 11 10  7    4  9  4
PWIND DIR        SW      SW    SW      SW    SW       S     S       S    SW
WIND CHAR        WY      BZ    GN      GN    GN      GN    GN      GN    BZ
AVG CLOUDS    OV OV BK   BK OV OV OV   OV BK BK BK   BK BK BK OV   OV OV OV
POP 12HR         50      40    50      30    30      30    50      60    40
SNOW           C  C  C    C  C  C  C    C  C  C  C    C  C  C  L    L  C  C

$$

WYZ001-101115-
SYLVAN PASS - PARK WY
44.47N 110.16W ELEV. 8420 FT
118 PM MST FRI DEC 9 2016

DATE          FRI 12/09/16      SAT 12/10/16            SUN 12/11/16         MON
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

MIN/MAX                      20          24          10          14           6
TEMP          21 20 20 20 20 20 20 24 23 21 20 17 16 13 10 12 14 10 11 10  9  7
DEWPT         17 20 20 20 19 19 19 21 21 21 18 15 14 10  9  9 10  8  9  8  7  5
RH            84100100100 96 96 96 88 92100 92 92 92 87 96 87 84 91 91 91 91 91
WIND DIR       W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD      17 17 17 17 20 19 18 19 19 19 16 13 13 13 14 17 19 18 19 19 18 16
WIND GUST        25 25 26 29 29 27 28 28 28 25 20 20 20 21 26 29 25 26 26 25 23
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV BK BK OV OV OV OV OV
CLOUDS(%)    100100100100100100100100 98 95 95 97 97 96 96 75 75 81 81 89 89 85
POP 12HR                    100         100          70          60          70
QPF 12HR                   0.34        0.21        0.12        0.04        0.12
SNOW 12HR                     5           3           2           1           2
SNOW           D
SNOWSHWRS         O  O  O  O  O  O  O  L  L  L  C  C  C  C  C  C  L  L  L  L  L
OBVIS         BS
WINTER STORM   W  W  W  W  W  W  W  W  W  W


DATE           12/12/16  TUE 12/13/16  WED 12/14/16  THU 12/15/16  FRI 12/16/16
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          11       3     6     -11     5      -8    11       3     6
TEMP          10  5  4    4  5 -7 -9  -10  2 -5 -7   -7  8  5  4    4  5 -4
DEWPT          8  7  3    2  0 -9-11  -12 -6 -7 -9   -9  3  4  3    2  1 -6
PWIND DIR         W       W     W       W     W      SW    SW      SW    NW
WIND CHAR        BZ      BZ    BZ      GN    LT      GN    GN      GN    LT
AVG CLOUDS    OV BK OV   OV BK BK BK   BK SC SC BK   BK OV OV OV   OV OV OV
POP 12HR         70      50    40      20    20      30    30      60    40
SNOW                 C    C  C  S  S    S  S     S    S  C  C  C    C  C  C
SNOWSHWRS      L  C

$$

BELOW IS A WEATHER ELEMENT KEY FOR THIS PRODUCT

DAY 1 THROUGH DAY 3...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....MAXIMUM/MINIMUM AIR TEMPERATURE
TEMP(F).............................AIR TEMPERATURE
DEWPT(F)............................DEW POINT TEMPERATURE
RH(%)...............................RELATIVE HUMIDITY
WIND DIR(8 POINT COMPASS)...........WIND DIRECTION
WIND SPD(MPH).......................WIND SPEED
CLOUDS(CAT).........................CLOUD COVER CATEGORY
     CL.....CLEAR/SUNNY.......................0% TO =<  10%
     FW.....MOSTLY CLEAR/MOSTLY SUNNY......> 10% TO =<  30%
     SC.....PARTLY CLOUDY/PARTLY SUNNY.....> 30% TO =<  60%
     BK.....MOSTLY CLOUDY..................> 60% TO =<  80%
     OV.....CLOUDY.........................> 80% TO =< 100%
CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR(IN.).......................AMOUNT OF LIQUID PRECIPITATION
SNOW 12HR(MIN-MAX - IN.)............RANGE OF SNOWFALL
WEATHER...
     TYPE...
       RAIN...........RAIN
       RAIN SHWRS.....RAIN SHOWERS
       SPRINKLES......SPRINKLES
       TSTMS..........THUNDERSTORMS
       DRIZZLE........DRIZZLE
       SNOW...........SNOW
       SNOWSHWRS......SNOW SHOWERS
       FLURRIES.......SNOW FLURRIES
       SLEET..........SLEET
       FRZG RAIN......FREEZING RAIN
       FRZG DRZL......FREEZING DRIZZLE
     COVERAGE...
       IS.............ISOLATED
       SC.............SCATTERED
       NM.............NUMEROUS
       O..............OCCASIONAL
       S..............SLIGHT CHANCE
       C..............CHANCE
       L..............LIKELY
       WD.............WIDESPREAD
       D..............DEFINITE
       AR.............AREAS
       PA.............PATCHY
OBVIS...............................OBSTRUCTION TO VISIBILITY
     F.......FOG
     PF......PATCHY FOG
     F+......DENSE FOG
     PF+.....PATCHY DENSE FOG
     H.......HAZE
     BS......BLOWING SNOW
     K.......SMOKE
     BD......BLOWING DUST
     VA......VOLCANIC ASH
DAY 4 THROUGH DAY 7...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....MAXIMUM/MINIMUM AIR TEMPERATURE
TEMP(F).............................AIR TEMPERATURE
DEWPT(F)............................DEW POINT TEMPERATURE
PWIND DIR(8 POINT COMPASS)..........PREDOMINANT WIND DIRECTION IN 12HR PERIOD
WIND CHAR(MAX SUSTAINED IN 12HR)....WIND CHARACTERISTIC
       LT.....LIGHT;               < 8 MPH
       GN.....GENTLE;           8 - 14 MPH
       BZ.....BREEZY;          15 - 22 MPH
       WY.....WINDY;           23 - 30 MPH
       VW.....VERY WINDY;      31 - 39 MPH
       SD.....STRONG/DAMAGING;   >= 40 MPH
AVG CLOUDS(CAT).....................AVERAGE CLOUD COVER CATEGORY
     SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
WEATHER...
     SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS



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