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Issued by NWS Great Falls, MT

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POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE GREAT FALLS MT
241 PM MST SUN DEC 21 2014

MTZ012-221100-
GREAT FALLS-CASCADE MT
47.47N 111.38W ELEV. 3663 FT
241 PM MST SUN DEC 21 2014

DATE          SUN 12/21/14      MON 12/22/14            TUE 12/23/14         WED
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                      30          39          20          37          30
TEMP             39 34 33 33 31 31 38 37 30 23 22 21 21 22 32 37 32 30 33 35 36
DEWPT            32 29 28 27 25 26 25 25 21 20 17 16 16 17 21 20 23 21 25 29 32
RH               76 82 82 78 78 81 59 61 69 88 81 81 81 81 63 50 69 69 72 78 85
WIND DIR          W  W  W  W  W  W  W  W  W  W  W  W SW SW SW SW SW SW SW SW SW
WIND SPD         21 19 17 16 14 13 12 13 10 10 10 10 11 11 17 17 19 19 18 18 14
WIND GUST        35 29
CLOUDS           B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 B2
POP 12HR                     20          20          10           5          10
QPF 12HR                      0           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN                                                                          L
RAIN SHWRS        S  S
SNOWSHWRS         S  S        S  S  S  S
HIGH WIND         W  W


DATE           12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14  SUN 12/28/14
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          39      21    27      13    26      11    26      12    25
TEMP          39 34 27   24 24 19 15   17 24 20 14   16 23 16 12   14 18 16
DEWPT         30 27 25   22 15 14 12   13 14 10  9   12 14  9 10   11 12 13
PWIND DIR        SW       N     W       W    SW      SW    SW      SW    SW
WIND CHAR        BZ      GN    GN      GN    GN      BZ    BZ      GN    GN
AVG CLOUDS    B2 B2 OV   OV OV OV B2   B2 B1 B1 B1   B1 B1 B1 B2   B2 B2 B2
POP 12HR         60      80    60      20    20      10    20      20    20
RAIN           L  L
SNOW              L  D    D  L  L  S    S  S  S          S  S  S    S  S  S

$$
MTZ010-221100-
CUT BANK-GLACIER MT
48.60N 112.39W ELEV. 3838 FT
241 PM MST SUN DEC 21 2014

DATE          SUN 12/21/14      MON 12/22/14            TUE 12/23/14         WED
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                      28          37          21          35          28
TEMP             36 32 30 29 28 28 33 36 31 26 24 22 21 22 29 35 31 33 35 35 35
DEWPT            33 29 26 24 23 23 23 24 26 22 19 16 16 17 19 23 28 27 29 28 31
RH               89 88 85 81 81 81 66 61 81 85 81 77 81 81 66 61 88 78 78 75 85
WIND DIR          W  W  W  W  W  W  W  W  W  W  W  W  W  W SW SW  W  W  W  W  W
WIND SPD         25 25 20 19 16 17 17 16 13 13 12 12 11 11 16 16 20 20 19 19 12
WIND GUST        41 41 31 29
CLOUDS           B1 B1 B1 B1 B1 B1 B1 B1 SC SC FW FW SC SC B1 B1 B1 B1 B1 B1 B2
POP 12HR                     20          20          10          20          10
QPF 12HR                      0           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS
SNOW                                                                          L
SNOWSHWRS         S  S  S  S  S  S                          S  S


DATE           12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14  SUN 12/28/14
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          35      16    25       8    24       9    24       7    19
TEMP          35 32 25   19 19 19 10   13 24 18 15   16 23 13  7    8 11 13
DEWPT         27 29 20   18 14 14  6    8 15 14  8   13 14 10  5    7  6 11
PWIND DIR         W      NW    NW       W     W       W     W       W    NW
WIND CHAR        GN      GN    GN      GN    GN      BZ    GN      GN    GN
AVG CLOUDS    B2 B2 OV   OV OV OV B1   B1 B1 B1 B1   B1 B1 B1 B2   B2 B2 B2
POP 12HR         60      70    40      20    20      10    20      20    20
SNOW           L  L  L    L  C  C  S    S  S  S          S  S  S    S  S  S

$$
MTZ014-221100-
HELENA-LEWIS & CLARK MT
46.61N 111.96W ELEV. 3893 FT
241 PM MST SUN DEC 21 2014

DATE          SUN 12/21/14      MON 12/22/14            TUE 12/23/14         WED
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          38          18          33          22
TEMP             38 38 37 37 34 31 32 35 33 26 21 20 19 18 26 32 32 26 24 24 24
DEWPT            30 29 29 27 29 24 20 20 21 21 18 17 16 15 15 16 19 15 16 17 19
RH               73 70 72 67 82 75 61 54 61 81 88 88 88 88 62 51 58 62 71 74 81
WIND DIR          W  W  W  W  W  W  W  W  W  W  W  W SW SW  S  S  S  S  S  S  S
WIND SPD         27 18 13 17 12 12 10 13  8  8  6  6  5  5  6  6  5  5  5  5  5
CLOUDS           B2 B2 B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 OV
POP 12HR                     30          20          10          10          10
QPF 12HR                   0.01           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS        C  C
SNOW                                                                          L
SNOWSHWRS         C  C  C  C  S  S  S  S
HIGH WIND


DATE           12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14  SUN 12/28/14
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          36      24    28      12    24       9    25      14    28
TEMP          29 34 35   31 22 18 17   16 15 20 16    9 19 22 19   17 22 24
DEWPT         21 25 32   28 13 12 13    9 10 12  6    4 15 13 15   11 19 17
PWIND DIR        SW      NW     W      SW    SW      SW    SW      SW    SW
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    OV OV OV   OV OV OV B2   B2 B1 B1 B1   B1 B2 B2 B2   B2 B2 B2
POP 12HR         70      80    70      30    20      20    20      20    20
RAIN                 D
SNOW           L  L  D    D  L  L  C    C  S  S          S  S  S    S  S  S

$$
MTZ055-221100-
BOZEMAN-GALLATIN MT
45.78N 111.16W ELEV. 4475 FT
241 PM MST SUN DEC 21 2014

DATE          SUN 12/21/14      MON 12/22/14            TUE 12/23/14         WED
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                      24          34           9          26          16
TEMP             32 34 36 34 30 26 30 30 27 20 17 15 12 10 21 26 22 19 22 24 24
DEWPT            26 27 28 29 27 23 22 18 16 17 15 13  9  7 14 14 17 13 13 20 21
RH               78 75 72 82 88 88 72 60 63 88 92 92 87 87 74 60 81 77 68 84 88
WIND DIR          W  W  W  W  W  W  W  W  W  W  W  W SW SW SW SW SW SW SW SW SW
WIND SPD         14 12  9 10  8  6  8 10  5  5  4  4  5  5  6  6  6  6  6  6  6
CLOUDS           B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 OV
POP 12HR                     40          30          20           5          10
QPF 12HR                   0.03        0.01           0           0           0
SNOW 12HR                     T           T       00-00
RAIN SHWRS        C  C
SNOW                                                                          C
SNOWSHWRS         C  C  C  C  C  C  C  C  S  S  S  S


DATE           12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14  SUN 12/28/14
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          34      21    27       7    23       8    25      12    25
TEMP          31 31 31   25 27 18 10    7 16 17 16   15 25 22 18   17 18 19
DEWPT         24 23 26   23 18 17  9    5  8 10  6   13 19 17 16   16 13 17
PWIND DIR        SW      SW    NW       W    SW      SW    SW      SW    SW
WIND CHAR        GN      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    OV OV OV   OV OV OV B2   B2 B1 B1 B1   B1 B2 B2 B2   B2 B2 B2
POP 12HR         40      80    80      30    20      10    20      20    20
RAIN                 D
SNOW           C  C  D    D  D  D  C    C  S  S          S  S  S    S  S  S

$$
MTZ055-221100-
WEST YELLOWSTONE-GALLATIN MT
44.66N 111.11W ELEV. 6700 FT
241 PM MST SUN DEC 21 2014

DATE          SUN 12/21/14      MON 12/22/14            TUE 12/23/14         WED
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          31           5          27          14
TEMP             33 33 31 28 28 22 28 31 26 18 13  9  6  8 21 27 23 19 15 15 14
DEWPT            31 30 28 26 25 19 20 18 18 14  9  5  2  4 12 15 16 13 10 10  8
RH               92 89 88 92 88 88 71 58 71 84 84 83 83 83 68 60 74 77 80 80 76
WIND DIR          W  W  W  W  W NW NW NW NW NW NW NW  N  N SW SW SW SW  S  S  S
WIND SPD         11 11  9 11  9  8  9 11  5  5  4  4  2  2  4  4  5  5  5  5  6
CLOUDS           OV OV OV OV B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2
POP 12HR                     90          40          20          10          20
QPF 12HR                   0.05        0.05        0.01           0        0.01
SNOW 12HR                     1           1           T
SNOW                                                              S  S  S  S  C
SNOWSHWRS         D  D  L  L  C  C  C  C  S  S  S  S
WINTER WEATH      Y  Y  Y  Y


DATE           12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14  SUN 12/28/14
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          31      16    25       6    22       8    22      12    28
TEMP          26 27 24   21 23 20 12    9 16 14 12    9 19 18 16   14 22 21
DEWPT         18 22 23   19 18 17 10    5 10 10 10    8 12 15 15   12 14 17
PWIND DIR         S       S    NW      NW    SW       S     S       S     S
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B2 B2 OV   OV B2 B2 B2   B2 B1 B1 B1   B1 B1 B1 B1   B1 B2 B2
POP 12HR         40      70    50      40    30      20    20      20    20
SNOW           C  C  L    L  C  C  C    C  C  C  S    S  S  S  S    S  S  S

$$
MTZ008-221100-
DILLON-BEAVERHEAD MT
45.26N 112.55W ELEV. 5357 FT
241 PM MST SUN DEC 21 2014

DATE          SUN 12/21/14      MON 12/22/14            TUE 12/23/14         WED
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                      28          35          12          31          17
TEMP             34 32 29 28 28 30 30 32 26 17 15 14 12 13 24 31 23 18 17 18 18
DEWPT            26 25 25 22 21 22 18 14 14 10 10  9  8 10 17 14 17 11  9  7  8
RH               72 75 85 78 75 72 60 47 60 73 80 80 84 87 74 49 77 73 70 61 64
WIND DIR          W  W  W  W  W  W  W  W  W  W SW SW  S  S SW SW  S  S  S  S  S
WIND SPD         14 12 10 10  9  9  8  8  4  4  6  6  5  5  9  9 11 11 12 12 11
CLOUDS           B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 OV
POP 12HR                     60          30          10           5          20
QPF 12HR                   0.06        0.02           0           0        0.01
SNOW 12HR                     1           T       00-00
RAIN SHWRS
SNOW                                                              S  S  S  S  C
SNOWSHWRS         L  L  C  C  C  C  S  S


DATE           12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14  SUN 12/28/14
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          35      22    29      13    25      10    26      17    31
TEMP          30 28 29   25 27 18 15   13 20 18 13   11 20 20 19   18 25 25
DEWPT         17 22 26   21 18 10 10    6 12 14  7    4  7 13 14   11 17 18
PWIND DIR         S      SW     W      SW    SW      SW    SW       S     S
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    OV OV OV   OV B2 B2 B2   B2 B2 B2 B1   B1 B2 B2 B2   B2 B2 B2
POP 12HR         50      80    70      30    20      20    20      20    20
SNOW           C  C  D    D  L  L  C    C  S  S  S    S  S  S  S    S  S  S

$$
MTZ011-221100-
HAVRE-HILL MT
48.54N 109.76W ELEV. 2585 FT
241 PM MST SUN DEC 21 2014

DATE          SUN 12/21/14      MON 12/22/14            TUE 12/23/14         WED
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                      27          39          20          37          26
TEMP             37 34 33 33 30 28 37 38 31 25 23 22 21 21 32 37 31 27 28 29 31
DEWPT            31 30 31 29 27 25 29 27 25 21 19 19 17 17 22 24 25 22 25 25 27
RH               79 85 92 85 88 88 72 64 78 84 84 88 84 84 66 59 78 81 88 85 85
WIND DIR          W  W  W  W  W  W  W  W  W  W  W  W  W  W SW SW SW SW SW SW  W
WIND SPD         17 19 18 20 17 17 12 16 12 12 11 11 10 10 10 10 12 12 14 14 12
WIND GUST           29    31
CLOUDS           B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 B2
POP 12HR                     30          20          20           5          10
QPF 12HR                      0           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS
SNOW                                                                          C
SNOWSHWRS         C  C  S  S  S  S              S  S


DATE           12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14  SUN 12/28/14
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          36      21    27      12    26      12    25       6    20
TEMP          33 28 26   24 23 17 14   13 21 18 15   17 18 13 12   12 12  8
DEWPT         27 24 24   22 19 13 11   10 14 14 13   14 13 10 11   10  5  3
PWIND DIR         W       N    NW      NW     W       W    SW       W     W
WIND CHAR        GN      GN    GN      LT    GN      GN    GN      LT    GN
AVG CLOUDS    B2 B2 OV   OV B2 B2 B2   B2 B1 B1 B1   B1 B1 B1 B2   B2 B2 B2
POP 12HR         30      40    30      20    10      10    10      20    20
SNOW           C  C  C    C  C  C  S    S                      S    S  S  S

$$
MTZ051-221100-
LEWISTOWN-FERGUS MT
47.05N 109.46W ELEV. 4144 FT
241 PM MST SUN DEC 21 2014

DATE          SUN 12/21/14      MON 12/22/14            TUE 12/23/14         WED
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          38          20          37          27
TEMP             37 34 36 33 30 30 34 37 32 27 26 23 21 21 32 37 32 28 28 31 33
DEWPT            30 28 27 26 24 24 24 21 23 22 20 18 16 16 19 18 24 20 19 18 23
RH               75 78 69 75 78 78 66 52 69 81 78 81 81 81 58 46 72 71 68 58 66
WIND DIR          W  W  W  W  W NW NW NW NW NW  W  W  W  W SW SW SW SW SW SW  W
WIND SPD         26 26 24 26 19 21 19 21 16 16 13 13 10 10  9  9 11 11 14 14 12
WIND GUST        43 43 40 43
CLOUDS           B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 SC SC SC SC SC SC B1 B1 B1 B1 B2
POP 12HR                     40          30          20          10          10
QPF 12HR                   0.01        0.01           0           0           0
SNOW 12HR                 00-00           T       00-00
RAIN                                                                          L
RAIN SHWRS        C  C
SNOW                                                                          L
SNOWSHWRS         C  C  S  S  S  S  C  C  S  S  S  S
HIGH WIND         W  W


DATE           12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14  SUN 12/28/14
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          40      23    27      16    28      14    28      13    28
TEMP          38 34 31   27 25 22 18   16 26 23 19   15 25 22 15   13 22 19
DEWPT         28 28 26   23 18 15 14   12 14 16 11   10 15 14 10    9 13  9
PWIND DIR         W      NW    NW       W     W       W     W       W     W
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    B2 B2 OV   OV OV OV B2   B2 B1 B1 SC   SC B1 B1 B2   B2 B2 B2
POP 12HR         60      80    60      30    20      10    20      20    20
RAIN           L  L
SNOW           L     D    D  L  L  C    C  S  S          S  S  S    S  S  S

$$


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