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Point Forecast Matrices
National Weather Service Great Falls MT
312 AM MST Sat Dec 16 2017

MTZ012-162300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
312 AM MST Sat Dec 16 2017

Date                Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      35          21          41          35          43
Temp             28 27 30 34 27 23 22 23 23 25 32 40 36 39 42 42 43 38 42 42 34
Dewpt            25 25 26 25 20 17 14 14 11 11 15 20 20 23 27 28 29 30 32 29 24
RH               88 92 85 69 74 77 71 68 59 55 49 44 52 52 55 57 57 73 67 60 66
Wind dir          N NW NW  W SW SW SW SW SW SW SW SW SW SW SW SW SW  W  W  W  W
Wind spd          5  4  5  6  8 10 13 16 19 21 26 25 25 21 23 21 18 12 14 14 18
Wind gust                                   32 37 36 36 32 33 32
Clouds           OV OV OV B2 SC FW FW FW SC SC B1 B1 B2 B2 OV OV OV B2 B2 B2 B2
PoP 12hr                     30          10           5          20          30
QPF 12hr                   0.01           0           0           0        0.05
Snow 12hr                     T       00-00       00-00
Rain                                                        S  S  C  C  C
Snow              C  S  S  S                          S  S  S  S     C     C  C


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            28    41      23    26       7    24      15    30
Temp          30   28 35 39 42   32 18 12  9    8 23 16 16   17 30 20
Dewpt         24   24 32 29 22   20  9  8  6    4  8  9  4    9 14  8
PWind dir          SW    SW      SW    NW      NW    SW      SW     W
Wind char          GN    GN      WY    BZ      BZ    BZ      BZ    BZ
Avg clouds    B2   OV OV OV OV   B2 B2 OV OV   B1 SC SC B1   B1 B2 B2
PoP 12hr           30    30      30    50      30    10      20    20
Rain                      C  S    C
Snow           C    C  C  C  S    C  C  C  C    S             S  S  S

$$
MTZ010-162300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
312 AM MST Sat Dec 16 2017

Date                Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      35          21          40          27          36
Temp             26 25 30 35 25 22 21 22 25 27 35 40 35 36 38 36 33 28 34 36 27
Dewpt            24 24 22 21 19 16 13 13 15 17 18 21 20 24 25 24 23 23 25 23 19
RH               92 96 72 56 78 77 71 68 65 65 49 46 54 61 59 61 66 81 69 59 71
Wind dir         NW  W  W SW SW SW SW SW SW  W  W  W  W  W  W  W  W NW  W  W  W
Wind spd          5  6  5 11 11 12 14 18 23 24 28 27 24 23 23 21 19 13 14 14 14
Wind gust                                33 35 41 40 35 33 33 32
Clouds           OV OV B2 B1 SC CL FW FW SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     20           5           5          20          30
QPF 12hr                      0           0           0           0        0.09
Snow 12hr                 00-00       00-00       00-00
Snow              S  S                                S  S  S  S  C  C  C  C  S
Obvis               PF


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            22    35      17    21       6    24      14    29
Temp          25   22 29 32 36   22 18 10  7    8 24 15 16   16 29 16
Dewpt         18   18 26 29 26   18 13  7  0   -3  8  6  4    9 21 11
PWind dir           W    SW      SW    NW      NW     W       W     W
Wind char          GN    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    B2   B2 OV OV OV   B2 OV OV B2   SC SC SC B1   B1 B2 B2
PoP 12hr           30    40      40    40      20    10      10    20
Snow           S    C  C  C  C    C  C  C  S                     S  S

$$
MTZ014-162300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
312 AM MST Sat Dec 16 2017

Date                Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      30          16          37          28          45
Temp             25 24 27 29 27 22 18 18 17 17 28 36 35 32 33 32 33 33 43 44 43
Dewpt            23 21 23 20 21 18 15 14 14 12 17 21 25 25 27 27 28 29 35 31 33
RH               92 88 85 69 78 84 88 84 88 80 63 54 66 75 78 81 82 85 73 60 67
Wind dir          W NW NW NW SW  W SW SW SW SW SW  W SW SW SW SW SW  W  W  W  W
Wind spd          4  4  4  5  3  4  4  5  6  5  8  9  6  6  6  9  8  8 12 14  8
Clouds           OV OV OV B2 B1 FW FW FW SC SC B1 B1 B2 B2 OV B2 B2 B2 B2 B2 B2
PoP 12hr                     40          10           5          30          30
QPF 12hr                   0.02           0           0        0.01           0
Snow 12hr                     T       00-00       00-00
Rain                                                                 C  C  C  S
Snow              C  C  C  C                          C  C  C  C  C  C
Obvis            PF PF
Winter Weath      Y  Y


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            27    40      24    26       5    17       7    21
Temp          34   28 36 40 33   27 21 10 10    5 16 13  8    9 20 18
Dewpt         31   25 29 26 27   20  8  1  3    2  6  1  1    6  9  6
PWind dir          SW    SW      SW     W      NW     W       W     W
Wind char          LT    LT      GN    GN      GN    LT      LT    LT
Avg clouds    B2   OV B2 B2 B2   B2 B2 OV B2   B1 SC SC B1   B1 B2 B2
PoP 12hr           30    30      30    60      30    10      10    20
Rain           S       C  S  S    C
Snow           S    C  C  S  S    C  C  L  C    S                S  S

$$
MTZ055-162300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
312 AM MST Sat Dec 16 2017

Date                Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      29           8          33          24          42
Temp             22 22 24 28 25 19 13 10  8 11 22 32 30 26 27 30 31 32 39 41 41
Dewpt            20 19 20 23 20 17 11  8  6  6 11 20 20 19 19 23 25 27 28 30 31
RH               92 88 84 81 81 92 91 91 91 80 62 61 66 74 71 75 78 81 64 65 67
Wind dir          W  W  W NW NW SW  S  S  S  S SW SW SW SW SW SW SW SW SW SW SW
Wind spd          3  3  4  4  4  3  3  3  4  3  4  6  6  6  6  9 10  9  8 11  5
Clouds           OV OV OV OV B2 B1 SC SC SC SC B1 B1 B2 B2 OV OV OV OV OV OV OV
PoP 12hr                     70          30          10          30          40
QPF 12hr                   0.08        0.01           0        0.01        0.02
Snow 12hr                     1           T       00-00
Snow              L  L  L  C  C  S                    C  C  C  C  C  C  C  C  C
Obvis            PF PF          PF PF PF
Wind chill                               -1
Min chill                                -1
Winter Weath      Y  Y  Y


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            24    38      24    29       2    14       1    17
Temp          32   25 33 38 36   28 26 17  5    2 11 13  2    5 16 15
Dewpt         27   20 22 24 25   22 15  5 -2   -1  1  1 -7    1  5  5
PWind dir          SW    SW      SW     W      NW     W      SW    SW
Wind char          LT    LT      GN    LT      LT    LT      LT    LT
Avg clouds    OV   OV OV OV OV   B2 OV OV OV   B2 B1 SC B1   B1 B1 B2
PoP 12hr           40    30      30    60      40    10      10    20
Rain                      S  S    C
Snow           C    C  C  S  S    C  C  L  C    C                S  S

$$
MTZ055-162300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
312 AM MST Sat Dec 16 2017

Date                Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      26          -4          20          15          26
Temp             18 18 21 26 21 11  3 -2 -3 -2 12 19 17 15 15 15 17 17 21 25 25
Dewpt            16 16 18 19 15  7  0 -4 -5 -3  8 11 12 12 12 12 13 15 16 19 19
RH               92 92 88 74 77 83 87 91 91 95 84 70 80 88 88 88 84 92 81 78 78
Wind dir          S  W  N  N  N  N  N SE SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd          3  3  3  4  4  3  3  2  2  4  6  6  6  5  6 10  8  8  8  9  8
Clouds           OV OV OV OV B2 SC SC FW SC SC B1 B1 B2 B2 B2 OV OV OV OV OV OV
PoP 12hr                     60          20          10          40          50
QPF 12hr                   0.06           0           0        0.03        0.04
Snow 12hr                     1       00-00       00-00
Snow              L  C  C  C  S                       C  C  C  C  C  C  C  C  C
Obvis                                 PF PF PF
Wind chill                         -4      -12
Min chill                          -4    -3   -12
Winter Weath      Y  Y  Y


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            10    28      13    26      -8    13     -12    14
Temp          15   11 19 28 17   14 25 22  1   -8  5 12 -6  -10  7 13
Dewpt         12    9 14 20 13   10 23 14 -3  -10 -3  2 -9  -15 -1  7
PWind dir          SW    SW      SW    SW      NW     E      SE    SW
Wind char          LT    LT      GN    GN      LT    LT      LT    LT
Avg clouds    OV   OV OV OV B2   B2 OV OV OV   B2 B1 SC SC   B1 B2 B2
PoP 12hr           40    30      40    80      40    20       5    10
Snow           C    C  C  C  C    C  D  L  C    C     S

$$
MTZ008-162300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
312 AM MST Sat Dec 16 2017

Date                Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      32           8          33          25          41
Temp             25 22 26 31 24 18 13 10 10 10 22 33 27 26 28 27 30 28 37 40 35
Dewpt            19 17 20 19 15 13  8  6  4  3  8 16 15 15 18 19 22 21 24 25 24
RH               78 81 78 61 68 80 80 83 76 73 54 49 60 62 66 71 72 75 59 55 64
Wind dir          S SW  W NW NW  S  S  S  S SW SW SW  S  S  S  S  S  S SW SW SW
Wind spd          8  6  8  6  5  6  6  8  9 10 10  9  9 12 13 14 14 16 14 14 10
Clouds           OV OV B2 B2 B1 SC FW FW FW SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     60          20           5          20          20
QPF 12hr                   0.04           0           0           0           0
Snow 12hr                     1       00-00       00-00
Snow              L  C  C  C  S                       S  S  S  S  S  S  S  S  S
Wind chill                            -2 -3 -4
Min chill                                -3    -4
Winter Weath      Y  Y  Y


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            24    40      25    30       3    17       2    20
Temp          28   24 37 38 30   25 29 17  7    3 15 13  3    6 19 18
Dewpt         20   17 23 21 21   17 15  3 -1   -2  1 -1 -7    0  7  2
PWind dir           S     S       S    SW      NE     W      SW    SW
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2   B2 B2 B2 B2   B2 OV B2 B2   B2 B1 SC SC   B1 B1 B1
PoP 12hr           30    20      40    70      40    20      10    20
Snow           S    C  S  S  C    C  C  L  C    C  S             S  S

$$
MTZ011-162300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
312 AM MST Sat Dec 16 2017

Date                Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      38          20          41          28          40
Temp             28 27 33 38 30 24 22 22 20 21 33 41 37 31 32 34 32 29 36 40 33
Dewpt            27 26 26 21 21 18 17 17 13 14 17 21 23 21 23 26 25 24 26 24 25
RH               96 96 75 50 69 77 81 81 74 74 51 44 56 66 69 72 75 81 67 52 72
Wind dir          W  W  W  W  W SW SW SW SW SW SW SW SW SW SW  W  W NW  W  W  W
Wind spd          6  6  9  9  6  6  8 10 13 13 19 21 14 14 13 16 14 11 13 16 11
Wind gust                                         32
Clouds           OV B2 B2 B1 SC SC FW CL FW SC B1 B1 B2 B2 B2 B2 B2 OV B2 B1 B2
PoP 12hr                      5           5           5          30          30
QPF 12hr                      0           0           0        0.03        0.05
Snow 12hr                 00-00       00-00       00-00
Snow                                                  C  C  C  C  C  C  C  C  S
Obvis               PF


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            21    35      21    24       3    22      10    29
Temp          23   21 34 33 31   25 21 16  4    7 20 20 11   14 28 24
Dewpt         20   18 25 30 25   15 16 14  0    3  8 11  5    9 16 14
PWind dir           W     S       S    NW      NW     W       W     W
Wind char          GN    GN      GN    BZ      GN    GN      GN    BZ
Avg clouds    B1   B1 B2 OV OV   OV OV OV B2   SC SC SC B1   B2 B1 B2
PoP 12hr           20    40      50    50      30    10      20    30
Snow           S    S  S  C  C    C  C  C  C                  S  C  C

$$
MTZ051-162300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
312 AM MST Sat Dec 16 2017

Date                Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      34          17          39          31          39
Temp             28 27 29 32 30 23 19 18 17 19 33 39 35 32 38 39 39 38 38 34 31
Dewpt            25 24 24 22 23 19 13 10  9  8 15 20 21 22 29 30 29 34 34 29 27
RH               88 88 81 66 75 84 77 70 70 61 47 46 56 66 70 70 67 85 85 82 85
Wind dir          W NW NW NW  W SW  S SW  S SW SW  W  W SW  W  W  W  W NW NW  W
Wind spd          5  9  6  4  4  5  4  8  8 11 12 13 13 13 17 21 21 16 13 12 11
Wind gust                                                     32 32
Clouds           OV OV OV B2 B2 B2 SC FW FW FW SC SC B1 B2 B2 OV B2 B2 B2 B2 B2
PoP 12hr                     40          20           5          20          40
QPF 12hr                   0.02           0           0        0.02        0.10
Snow 12hr                     T       00-00       00-00
Rain                                                           S  C  C  C
Snow              C  C  C  C  S                       S  S  S  S  C  C  C  C  C


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            22    39      24    26       4    21      11    24
Temp          22   22 34 39 39   32 19 12  7    5 19 18 14   12 24 19
Dewpt         20   19 30 31 25   21 14 10  4    1  3  8  5    6 12 15
PWind dir           W    SW      SW     W      NW     W       W     W
Wind char          GN    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    B2   B2 OV OV OV   OV B2 B2 OV   B2 SC SC B1   B1 B1 B2
PoP 12hr           30    30      20    50      30    10      10    20
Rain                         S    S
Snow           C    C  C  C  S       C  C  C    S                S  S

$$
http://www.weather.gov/greatfalls




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