Point Forecast Matrices
Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
817 AM MST Tue Dec 12 2017

MTZ012-122300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
817 AM MST Tue Dec 12 2017

Date                Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      56          30          45          28          46
Temp                   52 56 48 42 38 34 31 31 40 45 39 31 31 30 29 29 40 46 41
Dewpt                   3  1  5 10 12 15 15 16 16 15 17 16 16 17 16 20 22 22 23
RH                     13 10 17 26 34 45 51 53 37 29 40 53 53 58 58 69 48 38 48
Wind dir               SW SW SW SW SW SW SW SW SW SW SW SW  W SW  W SW SW SW SW
Wind spd               28 28 23 12 10  9 12  8  9 10 10 11 11 11 11 11 12 16 16
Clouds                 SC FW B1 B2 SC SC SC B1 B1 SC FW FW SC SC SC FW SC FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            35    50      30    40      30    48      32    44
Temp          36   37 49 46 40   30 34 40 30   34 47 47 43   32 43 36
Dewpt         20   20 23 24 29   25 24 22 19   21 25 25 29   22 27 17
PWind dir          SW    SW       W     W      SW    SW      SW     W
Wind char          BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    SC   SC B1 B2 B2   B2 B2 B2 B1   SC B1 B1 B2   B1 B2 B1
PoP 12hr            0     5      50    30      20    20      20    20
Rain shwrs                   C    C                S  S  S    S  S
Snowshwrs                    C    C  C  S  S       S  S       S  S

$$
MTZ010-122300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
817 AM MST Tue Dec 12 2017

Date                Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      54          26          45          25          45
Temp                   51 53 48 41 37 30 28 27 39 45 35 29 31 29 28 26 37 45 35
Dewpt                   5  1 10 15 18 15 15 16 18 16 19 16 18 16 18 19 22 22 20
RH                     15 12 21 34 46 53 58 63 42 31 52 58 58 58 66 74 54 40 54
Wind dir                W  W NW  W  W  W  W  W  W  W  W  W  W  W  W  W SW SW SW
Wind spd               36 34 29 19 14 11 16  8 10 13 13 12 13 13 11 10 11 13 14
Clouds                 SC B1 B2 B1 CL SC B1 B1 SC SC FW SC FW FW FW FW SC SC SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
High Wind               W  W  W


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            32    47      26    39      27    45      28    41
Temp          35   35 47 40 35   26 36 32 27   34 44 40 35   28 41 33
Dewpt         21   23 23 27 30   22 22 18 18   26 25 27 29   22 25 21
PWind dir           W     W       W     W       W     W       W     W
Wind char          BZ    BZ      BZ    BZ      BZ    WY      BZ    BZ
Avg clouds    SC   SC B1 B2 B2   B2 B2 B1 B1   SC B1 B1 B1   B1 B1 SC
PoP 12hr            0     5      50    20       5    20      20    20
Rain shwrs                   C                     S  S  S    S
Snowshwrs                    C    C  S  S          S  S  S    S  S

$$
MTZ014-122300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
817 AM MST Tue Dec 12 2017

Date                Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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          14          35          14          38
Temp                   26 35 33 30 27 22 16 15 25 35 29 22 19 18 17 14 27 37 32
Dewpt                  13 11  9 10 13 11  8  9 15 16 14 12 11 12 12 10 19 21 20
RH                     57 36 36 42 55 62 70 77 65 45 53 65 70 77 80 84 71 52 61
Wind dir               NW  E  W  W  W  W SW  W  W NW  W  W  W SW  W SW  S  S  S
Wind spd                3  3  5  6  4  3  3  2  2  4  4  3  2  2  2  2  2  3  3
Clouds                 FW SC B2 OV B1 B1 B1 B2 B1 SC FW FW FW FW FW SC SC FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            19    42      26    37      25    42      28    41
Temp          22   19 36 42 32   26 34 36 28   26 38 42 37   28 39 40
Dewpt         14   14 21 25 26   22 23 20 20   20 25 26 30   23 28 25
PWind dir          SW    SW       W     W      SW    SW      SW     W
Wind char          LT    LT      GN    GN      GN    GN      GN    GN
Avg clouds    SC   SC B1 B1 B2   B1 B2 B2 B1   SC B1 B1 B1   B1 B1 B1
PoP 12hr            0     0      40    30      10    30      20    10
Rain shwrs                   C    C                   C  S    S
Snowshwrs                    C    C  C  S          S  C       S

$$
MTZ055-122300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
817 AM MST Tue Dec 12 2017

Date                Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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           8          33           8          36
Temp                   25 35 27 15 18 13 12  9 25 33 26 15 13 10 10  9 26 35 30
Dewpt                  14 17 12  7  9  4  6  3 12 16 12  8  6  5  7  5 18 20 19
RH                     62 47 53 70 67 67 76 76 57 49 55 73 73 80 87 83 71 54 63
Wind dir               SW  W SW  S  S  S  S  S  W NW SE SW SW  S  S  S SW  W  S
Wind spd                3  4  5  6  5  5  4  2  2  2  2  4  3  4  3  3  2  3  3
Clouds                 CL CL SC SC B2 B1 B1 B2 B2 B1 SC FW FW FW SC SC SC FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            15    38      21    34      18    37      24    39
Temp          19   15 32 38 26   21 29 33 19   19 33 37 28   26 36 38
Dewpt         10   10 18 23 18   17 20 19 11   14 19 21 17   21 23 24
PWind dir           S    SW      SW     W      SW    SW      SW    SW
Wind char          LT    LT      LT    GN      LT    LT      GN    GN
Avg clouds    SC   SC B1 B2 B2   B2 B2 B2 B2   B1 B1 B1 B2   B2 B1 B1
PoP 12hr            0     5      50    40      20    30      30    20
Rain shwrs                   C    C                   C  C       S
Snowshwrs                    C    C  C  S  S       S  C  C    S  S

$$
MTZ055-122300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
817 AM MST Tue Dec 12 2017

Date                Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      27          -3          30          -3          31
Temp                   14 27 18  8  5  0 -2 -1 17 29 23 12  8  3 -3  2 16 31 25
Dewpt                   9  8  7  3  0 -3 -6 -3 12 13 14  8  5  0 -5  1 13 20 19
RH                     80 44 61 79 79 87 82 91 80 51 68 84 87 87 91 95 88 63 78
Wind dir                S SW SW SW  S  S  E  N NE SW NW  N  N  N NE NE NE SW SW
Wind spd                3  4  4  3  2  2  3  1  1  5  4  3  2  3  2  2  2  3  4
Clouds                 CL CL FW FW SC B1 B1 B1 B1 B1 SC FW FW FW SC SC FW FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis                                    PF
Wind chill                                                    -5
Min chill              -6          -1    -2    -2                -8    -3


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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             8    28      15    25      10    26      17    30
Temp          11    9 23 28 21   15 23 24 13   10 20 26 21   17 24 30
Dewpt          8    7 16 18 17   13 17 14 10    8 13 17 18   15 19 20
PWind dir           S     S      SW     W       W    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    SC   SC SC B1 B2   B2 OV B2 B2   B1 B1 B2 B2   B2 B2 B2
PoP 12hr            0    10      40    40      20    30      20    20
Snowshwrs                    C    C  C  S       S  S  C  S    S  S  S

$$
MTZ008-122300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
817 AM MST Tue Dec 12 2017

Date                Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      39          15          38          15          38
Temp                   31 39 31 26 25 21 18 16 30 38 31 23 20 17 17 15 26 38 32
Dewpt                  13 16 12  8  9  8  6  7 14 16 15  9  9 11 11 10 16 20 18
RH                     47 39 45 46 50 56 59 67 51 40 51 54 62 77 77 80 65 48 56
Wind dir               SW SW SW SW  S  S  S SW SW NW  N SW  S  S  S  S  S  S  S
Wind spd               10  9  9 11  8  9 10  6  5  6  6  5  5  8  8  6  6  4  5
Clouds                 CL CL FW B2 OV B2 B1 B1 B1 SC SC FW FW FW FW FW FW FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            17    40      22    35      19    37      25    40
Temp          19   18 33 39 25   23 34 28 20   21 32 37 29   26 37 39
Dewpt         10    9 16 23 16   17 17 11  9   13 16 21 19   18 20 22
PWind dir           S     S       S     W      SW     S       S    SW
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   SC SC B1 B2   B2 B2 B1 B1   B1 B1 B1 B1   B1 B1 B1
PoP 12hr            0     0      30    30      10    20      20    10
Rain shwrs                   C
Snowshwrs                    C    C  C                S  S

$$
MTZ011-122300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
817 AM MST Tue Dec 12 2017

Date                Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      53          20          44          20          43
Temp                   44 52 43 33 28 24 21 22 36 44 33 31 28 26 24 21 33 43 35
Dewpt                   9  3  8 14 13 14 12 14 19 20 19 20 20 21 20 17 26 27 25
RH                     23 13 23 45 53 65 68 71 50 38 56 63 71 81 84 84 75 53 66
Wind dir               SW  W  W  W  W SW  W SW  W  W  W  W  W  W  W  W  W SW SW
Wind spd               31 28 20 17 18 18 17 14 16 16 13 12 12 12 11 11 10 11  9
Clouds                 FW CL B2 B1 FW SC FW SC SC SC B1 B1 SC SC FW FW SC FW B1
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
High Wind                  W  W  W  W


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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    49      27    41      24    46      27    43
Temp          29   29 48 44 35   27 39 37 25   28 45 44 35   27 42 37
Dewpt         20   19 27 30 31   22 29 22 19   20 26 28 29   23 29 24
PWind dir          SW     W       W     W       W    SW       W     W
Wind char          GN    BZ      GN    GN      GN    BZ      BZ    BZ
Avg clouds    B1   SC B1 B2 B2   B2 B2 B1 B1   SC B1 B1 B2   B1 B1 B1
PoP 12hr            0    10      50    30       5    20      20    20
Rain shwrs                   C    C                   S  S    S
Snowshwrs                    C    C  C                        S  S

$$
MTZ051-122300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
817 AM MST Tue Dec 12 2017

Date                Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      52          25          42          25          44
Temp                   50 52 42 35 31 27 27 26 36 41 35 29 30 29 28 26 37 44 37
Dewpt                  10 11  7 10 15 13 15 15 20 20 16 19 19 20 21 20 26 24 19
RH                     19 19 23 35 51 55 60 62 52 42 45 66 63 69 75 78 64 45 48
Wind dir                W  W  W  W  W  W  W  W  W NW  W  W  W  W  W  W  W  W SW
Wind spd               20 25 19 13 11  9 11  9 10 11 10 10 12 12 12 11 11  9  9
Clouds                 CL CL B1 B2 FW FW SC SC B1 SC SC SC SC SC SC FW FW SC SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            31    50      27    36      25    44      28    40
Temp          33   35 49 45 35   27 30 36 25   32 42 43 40   28 39 33
Dewpt         14   19 24 24 30   24 21 21 17   22 22 24 31   23 27 19
PWind dir          SW     W       W    NW       W     W       W     W
Wind char          GN    BZ      GN    GN      GN    BZ      BZ    BZ
Avg clouds    SC   SC B1 B1 B2   B2 B2 B2 B1   SC SC B1 B1   B1 B1 B1
PoP 12hr            0     5      40    40      20    10      30    20
Rain shwrs                   C                           S    C
Snowshwrs                    C    C  C  S  S                  C  S

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



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