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Point Forecast Matrices
National Weather Service Great Falls MT
239 AM MDT Tue Sep 19 2017

MTZ012-192300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
239 AM MDT Tue Sep 19 2017

Date             Tue 09/19/17            Wed 09/20/17            Thu 09/21/17
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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          39          56          36          52
Temp          44 43 46 53 55 53 46 44 42 40 45 51 56 54 48 42 38 36 39 48 52 51
Dewpt         34 36 35 32 29 30 29 29 30 29 30 29 32 33 33 33 28 30 31 33 31 32
RH            68 76 65 44 37 41 51 55 62 64 55 42 40 45 56 70 67 79 73 56 44 48
Wind dir      SW SW SW  W  W  W SW SW SW SW SW SW SW SW SW SW SW  W  W  W NW  N
Wind spd      11 10 13 13 14 14 14 18 19 16 14 14 14 13 11 11 12  9  6  6  9  8
Clouds        B2 B2 B1 B1 B1 B2 B2 B2 B1 SC SC B2 B1 B2 B2 B1 B2 B1 B1 B1 B1 B2
PoP 12hr                     20          20          30          30          20
QPF 12hr                   0.02        0.01        0.02        0.02        0.02
Snow 12hr                 00-00       00-00       00-00
Rain           S  S        S  S  S        S  S  C  C  C  C  S  S  S  S  S  S  S


Date               Fri 09/22/17  Sat 09/23/17  Sun 09/24/17  Mon 09/25/17
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            34    45      33    50      34    54      36    57
Temp          42   34 39 45 36   33 45 50 37   35 48 54 42   37 51 57
Dewpt         34   32 33 34 34   31 35 33 31   32 34 34 35   33 35 37
PWind dir           N     N       N     W      SE    SW       S    SW
Wind char          GN    LT      LT    LT      LT    LT      LT    GN
Avg clouds    B2   B2 OV OV B2   B2 B1 B1 B1   SC SC SC SC   FW FW FW
PoP 12hr           30    50      30    20      10    10       5     5
Rain           S    C  C  C
Rain shwrs                   C    S  S  S

$$
MTZ010-192300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
239 AM MDT Tue Sep 19 2017

Date             Tue 09/19/17            Wed 09/20/17            Thu 09/21/17
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      55          36          54          34          49
Temp          41 39 44 52 55 52 44 43 42 37 43 51 54 52 44 40 37 34 38 45 49 47
Dewpt         34 32 33 27 28 30 30 30 31 30 33 29 28 30 31 31 33 31 34 31 31 32
RH            76 76 65 38 35 43 57 60 65 75 67 42 36 43 60 70 85 89 85 58 50 56
Wind dir       W  W  W  W  W  W  W  W SW SW SW  W  W  W  W  W  W  W  W NW NW  N
Wind spd      13 11 13 16 18 19 17 18 14 11 12 17 17 17 13 11 12  9  6  9 10 13
Clouds        B1 B1 FW FW SC B1 SC B1 B1 SC SC B1 SC B1 SC B1 B1 B1 B2 B2 B2 B2
PoP 12hr                     10          10          10          20          20
QPF 12hr                      0           0           0        0.01        0.02
Snow 12hr                 00-00       00-00       00-00
Rain           S                                            S  S  S  S  S  S  C


Date               Fri 09/22/17  Sat 09/23/17  Sun 09/24/17  Mon 09/25/17
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            32    45      31    50      32    55      34    58
Temp          36   32 40 45 35   32 46 49 36   33 51 54 42   35 55 55
Dewpt         32   31 32 33 31   30 34 30 29   31 33 32 33   32 35 37
PWind dir           N     N       N    SW      SW    SW      SW    SW
Wind char          GN    GN      LT    LT      GN    LT      GN    GN
Avg clouds    B2   B2 B2 B2 B2   B2 B1 B1 B1   SC SC FW SC   SC FW FW
PoP 12hr           30    30      20    10      10    10       5     5
Rain           C    C  C  C
Rain shwrs                   S
Snow                C  C

$$
MTZ014-192300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
239 AM MDT Tue Sep 19 2017

Date             Tue 09/19/17            Wed 09/20/17            Thu 09/21/17
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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          35          56          35          52
Temp          44 42 45 50 52 50 43 42 38 36 40 49 56 53 44 40 36 35 37 47 52 51
Dewpt         36 35 37 36 33 30 32 31 30 29 31 35 36 33 33 33 30 30 30 33 31 31
RH            73 76 73 58 48 46 65 65 73 75 70 58 47 46 65 76 79 82 75 58 44 46
Wind dir       W  W  W  W  W  W SW SW  S  S  S SW SW  W  W SW SW SW  W  W NW  N
Wind spd       5  5  5  8 13 11  8  6  5  5  5  8 12 10  8  4  5  3  4  5  6  6
Clouds        B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B1 B2 B2
PoP 12hr                     40          30          50          30          20
QPF 12hr                   0.02        0.02        0.04        0.02        0.02
Snow 12hr                 00-00       00-00       00-00
Rain           S  S  S  C  C  C  S  S  S  C  C  C  C  C  C  S  S  S  S  S  S  C
Tstms                   S  C                    S  S


Date               Fri 09/22/17  Sat 09/23/17  Sun 09/24/17  Mon 09/25/17
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            35    45      32    49      33    53      34    54
Temp          43   35 39 45 34   33 44 49 35   34 47 53 37   36 50 53
Dewpt         37   31 33 33 31   30 35 33 27   30 35 32 30   31 38 35
PWind dir           N     N       N    NW       S     W      NW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B2 OV OV B2   B2 B2 B1 B1   SC SC SC SC   FW SC SC
PoP 12hr           50    60      30    20      10    10       5     5
Rain           C    C  L  C
Rain shwrs                   C    C  S
Snowshwrs                         C

$$
MTZ055-192300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
239 AM MDT Tue Sep 19 2017

Date             Tue 09/19/17            Wed 09/20/17            Thu 09/21/17
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      50          33          54          34          49
Temp          44 41 41 46 49 45 39 36 35 34 40 51 53 53 45 41 36 34 38 47 49 47
Dewpt         42 40 38 37 33 35 35 33 29 29 31 34 34 39 36 35 31 31 32 33 31 36
RH            93 96 89 71 54 68 85 89 78 82 70 52 48 59 70 79 82 89 79 58 50 65
Wind dir       W SW  W  W  W  W SW  S  S  S  S SW SW SW SW SW SW SW SW NW NW NW
Wind spd       5  6  4  5 11 13 10  5  8  6  5  8 11  9  8  6  5  5  3  3  4  5
Clouds        OV OV OV B2 B2 B2 B2 B2 B1 B1 B1 B2 B2 B2 B2 B2 B1 B2 B1 B2 B2 OV
PoP 12hr                     70          50          40          40          30
QPF 12hr                   0.19        0.05        0.06        0.07        0.07
Snow 12hr                 00-00       00-00       00-00
Rain           D  L  C  C  C  C  C  C  S  C  C  C  C  C  C  C  C  C  C  C  C  C
Tstms                   C  C  S                 S  C  S


Date               Fri 09/22/17  Sat 09/23/17  Sun 09/24/17  Mon 09/25/17
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            33    43      30    46      30    47      30    49
Temp          40   33 40 42 35   30 43 45 34   30 42 47 36   30 46 48
Dewpt         36   32 33 38 33   29 33 36 29   29 30 31 28   28 32 35
PWind dir          NE     N       N     N       E    SW       E    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   OV OV OV B2   B2 B2 B1 B2   SC B1 SC SC   SC SC SC
PoP 12hr           50    70      40    30      20    10      10    10
Rain           C    C  L  C
Rain shwrs                   C    C  C  S  S
Snowshwrs                         C  C
Tstms                                   S

$$
MTZ055-192300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
239 AM MDT Tue Sep 19 2017

Date             Tue 09/19/17            Wed 09/20/17            Thu 09/21/17
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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          24          42          29          39
Temp          38 37 36 37 37 35 31 29 28 25 31 39 42 42 39 33 31 30 30 37 39 36
Dewpt         37 36 35 33 32 32 30 27 26 24 28 30 34 36 37 32 31 29 28 32 31 28
RH            96 96 96 85 82 89 96 92 92 96 88 70 73 79 92 96100 96 92 82 73 72
Wind dir      SW SW SW SW SW SW SW  S  S  S  S SW SW SW SW SW  S  S  S  S  S  S
Wind spd       6  9 10 12 11 10  8  9  6  5  9 13 18 14  4  3  3  3  3  4  6  6
Clouds        OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV
PoP 12hr                     80          70          60          70          50
QPF 12hr                   0.37        0.07        0.16        0.30        0.16
Snow 12hr                     1           1           1
Rain                    D  D  L                 L  L  L  L  L           C  C  C
Snow           D  D  D  D  D  L  C  C  C  C  C  L              L  C  C  C  C  C
Tstms                S  C  C  C                 S  C  S
Obvis                                                         PF


Date               Fri 09/22/17  Sat 09/23/17  Sun 09/24/17  Mon 09/25/17
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            25    39      22    39      23    40      23    42
Temp          29   25 37 36 24   23 36 38 24   25 36 39 27   24 39 41
Dewpt         28   24 30 25 22   22 26 22 22   23 23 21 24   22 26 24
PWind dir           S    SW       S     N       N     N      NE    SE
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV   OV OV B2 B2   B2 B2 B1 B2   B1 B1 SC B1   SC SC SC
PoP 12hr           50    50      40    40      20    10      10    10
Rain           C          C
Rain shwrs                   S          C  S
Snow           C    C  C  C
Snowshwrs                    S    C  C  C  S    S
Tstms                        S          C

$$
MTZ008-192300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
239 AM MDT Tue Sep 19 2017

Date             Tue 09/19/17            Wed 09/20/17            Thu 09/21/17
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      48          30          50          29          44
Temp          41 38 39 46 47 43 37 36 33 31 37 47 49 49 38 34 30 30 32 40 43 43
Dewpt         37 34 34 33 29 27 27 29 26 24 28 29 29 30 25 26 23 26 26 26 26 31
RH            85 85 82 60 49 53 67 75 75 75 70 49 46 48 59 72 75 85 78 57 51 62
Wind dir      SW SW SW SW  W  W SW  S  S  S  S SW SW SW SW SW  S SW  W NW NW  N
Wind spd       6  9  8 10 18 14 10 17 12  9 10 16 17 17 10  8  8  8  6  4  6  9
Clouds        OV B2 B2 B2 B2 B2 B2 B1 B1 B1 B2 B2 B2 B2 B1 B1 SC B1 B1 B2 B2 B2
PoP 12hr                     40          30          40          40          40
QPF 12hr                   0.04        0.02        0.04        0.04        0.11
Snow 12hr                 00-00           T       00-00
Rain           C     C  C  C  C  S  S        C  C  C  C  C  C           C  C  C
Snow              C                 S     C                    C  C  C
Tstms                   C  C  S                 S  C


Date               Fri 09/22/17  Sat 09/23/17  Sun 09/24/17  Mon 09/25/17
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            30    41      27    41      27    45      27    46
Temp          34   30 36 40 27   30 36 41 29   28 37 45 31   28 40 46
Dewpt         31   29 28 31 25   27 26 26 24   24 25 26 25   24 28 24
PWind dir           N     N      NE     N      NE    NE      NE     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   OV OV B2 B2   B1 B2 B1 B1   SC SC SC SC   SC FW SC
PoP 12hr           60    50      20    20      10    10       5     5
Rain           C    L  C  C
Rain shwrs                   S       S
Snow           C    L  C  C
Snowshwrs                    S    S  S
Tstms                        S

$$
MTZ011-192300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
239 AM MDT Tue Sep 19 2017

Date             Tue 09/19/17            Wed 09/20/17            Thu 09/21/17
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      61          39          60          37          56
Temp          49 46 48 56 61 60 50 47 44 40 46 57 60 58 47 43 39 37 43 53 55 55
Dewpt         40 38 36 34 31 29 33 33 32 31 32 32 29 32 35 34 33 32 35 36 34 34
RH            71 73 63 43 32 31 52 58 62 70 58 38 31 37 63 70 79 82 73 52 45 45
Wind dir      SW  W  W  W  W  W SW SW SW SW SW SW SW SW SW  W  W  W  W  W  W NW
Wind spd      11 12 13 13 13 12 10 12 14 12 17 16 17 12  8  9  9  8 10 10 12  9
Clouds        B2 OV B2 SC SC SC SC SC SC SC SC SC SC B1 B1 B1 SC SC B1 B1 SC B1
PoP 12hr                     20          20           5          10          10
QPF 12hr                   0.02        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain           S  S        S  S


Date               Fri 09/22/17  Sat 09/23/17  Sun 09/24/17  Mon 09/25/17
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            35    50      34    54      35    59      36    61
Temp          39   36 46 49 38   35 49 53 40   36 53 58 43   37 56 60
Dewpt         30   32 34 35 34   32 35 35 32   32 36 36 34   32 37 36
PWind dir          NW     N       N    SE      SW     S       S     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1   B2 B2 OV B2   B2 B1 B1 B1   SC SC SC SC   SC FW FW
PoP 12hr           20    30      20    20      10    10       5     5
Rain                S  C  C
Rain shwrs                   S    S  S

$$
MTZ051-192300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
239 AM MDT Tue Sep 19 2017

Date             Tue 09/19/17            Wed 09/20/17            Thu 09/21/17
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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          36          56          36          51
Temp          45 42 44 50 53 50 43 41 38 37 44 51 55 54 43 40 36 36 40 48 51 49
Dewpt         41 37 36 30 32 28 32 32 30 27 29 26 35 31 35 32 31 31 32 28 32 28
RH            86 82 73 46 44 42 65 70 73 67 55 37 47 41 73 73 82 82 73 46 48 44
Wind dir       W  W  W  W  W  W  W  W SW SW SW SW SW  W SW SW SW  W  W NW NW  N
Wind spd       5  8 10 10 10 10 10 12 11 10  9 13 11 13  8  8  8  6  6  8  6  6
Clouds        B2 OV B2 B2 B2 B2 B2 B1 SC SC SC B1 B2 B2 B2 B1 B1 B1 SC B1 B1 OV
PoP 12hr                     30          20          30          20          20
QPF 12hr                   0.02        0.02        0.01        0.02        0.01
Snow 12hr                 00-00       00-00       00-00
Rain           C  C  S  S  C  S  S  S           C  C  S  S  S  S        S  S  C
Tstms                                              S


Date               Fri 09/22/17  Sat 09/23/17  Sun 09/24/17  Mon 09/25/17
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            34    44      31    47      32    50      33    54
Temp          39   34 38 44 34   32 44 46 35   33 46 49 36   35 51 52
Dewpt         32   33 33 37 32   31 35 35 30   31 34 35 30   31 35 39
PWind dir           N     N       N    NW      SE    NW      SE    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   OV OV OV OV   B2 B2 B1 B2   B1 B1 SC B1   SC SC SC
PoP 12hr           40    60      30    30      20    10      10    10
Rain           C    C  L  C
Rain shwrs                   C    S  C  S  S
Snowshwrs                         S  C
Tstms                                   S

$$
weather.gov/greatfalls




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