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Point Forecast Matrices
National Weather Service Great Falls MT
347 AM MDT Wed Sep 20 2017

MTZ012-202300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
347 AM MDT Wed Sep 20 2017

Date             Wed 09/20/17            Thu 09/21/17            Fri 09/22/17
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          36          54          35          44
Temp             43 47 53 56 54 46 43 40 37 41 51 54 53 46 41 38 36 35 39 44 43
Dewpt            30 30 30 28 28 32 32 31 30 31 31 29 32 31 32 30 32 31 32 33 34
RH               60 51 41 34 36 58 65 70 75 67 46 38 44 55 70 73 85 85 76 65 70
Wind dir         SW SW SW SW  W SW SW SW SW SW  W  W  N  N  N  N  N  N  N  N NE
Wind spd         18 19 19 18 17  9  9 11 11 10  8  9  8  9 10 11 10  9  8  8  8
Clouds           SC B1 B1 B1 B2 B2 B2 B1 SC SC SC B1 B2 B2 B2 OV OV OV OV OV OV
PoP 12hr                     20          20          10          30          50
QPF 12hr                   0.01        0.02           0        0.02        0.13
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S  S  S  S                 S  S  C  C  C  C  C  C  C


Date               Sat 09/23/17  Sun 09/24/17  Mon 09/25/17  Tue 09/26/17
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    49      33    54      36    59      41    60
Temp          37   33 43 48 37   34 48 53 40   38 53 58 45   42 55 59
Dewpt         35   31 34 32 30   30 35 30 31   33 36 37 38   35 41 40
PWind dir           S     S      SE    SW       S    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    GN      GN    GN
Avg clouds    OV   B2 B2 B1 B1   SC SC FW FW   FW FW FW SC   SC SC SC
PoP 12hr           30    30      20    10      10    10      10    20
Rain shwrs     C    C  C  C  S                                   S

$$
MTZ010-202300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
347 AM MDT Wed Sep 20 2017

Date             Wed 09/20/17            Thu 09/21/17            Fri 09/22/17
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          32          50          32          43
Temp             38 43 51 53 51 43 39 35 33 37 48 49 46 40 37 34 32 35 39 43 41
Dewpt            30 30 28 27 27 29 29 30 30 32 32 33 33 32 30 32 30 33 30 31 31
RH               73 60 41 36 39 57 67 82 89 82 54 54 60 73 75 92 92 92 70 62 67
Wind dir         SW SW  W  W  W  W  W  W  W  W NW  N  N  N  N  N  N  N  N  N  N
Wind spd         11 18 23 23 20 12 12  8  9  5  9 11 13 12 11 12  9  8 10  9 10
Clouds           B1 SC B1 SC B1 SC SC SC B1 B1 B1 B2 B2 B2 B2 B2 OV OV OV B2 OV
PoP 12hr                      5          10          30          30          40
QPF 12hr                      0           0        0.02        0.02        0.05
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  S  C  C  C  C  C  C  C  C  C  C  S
Snowshwrs                                                      C  C  C


Date               Sat 09/23/17  Sun 09/24/17  Mon 09/25/17  Tue 09/26/17
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            31    50      32    56      36    59      40    61
Temp          36   32 44 48 37   33 51 54 41   38 55 57 45   41 58 59
Dewpt         31   31 31 29 30   30 33 30 32   34 36 36 36   36 39 39
PWind dir           N    SW       S    SW      SW    SW       W     W
Wind char          LT    LT      GN    LT      GN    GN      GN    GN
Avg clouds    B2   B2 B1 B1 B1   SC FW FW SC   FW FW SC SC   SC SC SC
PoP 12hr           20    30      20    10      10    10      10    10
Rain shwrs     S    S  C  S  S
Snowshwrs              C

$$
MTZ014-202300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
347 AM MDT Wed Sep 20 2017

Date             Wed 09/20/17            Thu 09/21/17            Fri 09/22/17
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          35          53          36          44
Temp             37 43 49 53 52 44 42 37 35 39 48 52 52 43 41 39 37 36 39 44 43
Dewpt            29 32 34 35 36 36 34 30 30 32 34 30 30 30 31 31 31 31 33 33 32
RH               72 65 56 50 54 73 73 75 82 76 58 43 43 60 67 73 79 82 79 65 65
Wind dir          S SW  W  W  W SW SW SW SW  W  W  W  N NW  N  N  N  N  N  N  N
Wind spd          4  4  9 12 11  5  4  3  3  3  5  8  5  5  6  8  9  6  6  9  9
Clouds           B1 OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B2 B2 B2 OV OV OV OV OV OV
PoP 12hr                     40          30          20          50          70
QPF 12hr                   0.03        0.02        0.02        0.08        0.16
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        S  C  C  C  C  C  S  S  S  S  S  S  C  C  C  C  L  L  L  L  C
Tstms                      S


Date               Sat 09/23/17  Sun 09/24/17  Mon 09/25/17  Tue 09/26/17
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    49      33    54      34    56      38    58
Temp          38   35 44 47 36   35 48 53 37   36 49 55 42   40 53 58
Dewpt         34   33 34 30 29   31 36 30 29   30 36 32 34   33 41 39
PWind dir          NW     W       S    SW      SW    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV   B2 B2 B2 B1   SC SC SC SC   FW FW SC SC   SC SC SC
PoP 12hr           30    30      20    10      10    10      10    10
Rain shwrs     C    C  C  S  S
Snowshwrs              C

$$
MTZ055-202300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
347 AM MDT Wed Sep 20 2017

Date             Wed 09/20/17            Thu 09/21/17            Fri 09/22/17
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          50          35          43
Temp             35 41 51 53 51 44 42 39 36 39 46 50 49 42 40 38 36 35 40 43 41
Dewpt            29 31 33 34 36 35 35 34 34 34 33 31 35 33 35 34 34 32 35 34 36
RH               78 67 50 48 56 70 76 82 92 82 60 48 58 70 82 85 92 89 82 70 82
Wind dir          S SE  W  W SW  S  S  S SW  S  W NW  N  N NE  N  N  N  N  N  N
Wind spd          8  6 14 19 14  9  5  3  5  3  3  4  5  5  5  5  8  5  4  3  5
Clouds           B1 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV
PoP 12hr                     40          50          20          70          70
QPF 12hr                   0.06        0.09        0.02        0.19        0.20
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        S  C  C  C  C  C  C  C  S  S  S  S  C  C  L  L  L  L  C  C  C
Tstms                      S


Date               Sat 09/23/17  Sun 09/24/17  Mon 09/25/17  Tue 09/26/17
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    46      29    48      31    51      34    54
Temp          38   34 41 44 34   30 44 47 35   32 45 51 39   35 51 52
Dewpt         35   33 30 31 30   28 29 31 29   29 31 31 31   31 36 39
PWind dir           E     N      NE    SW      SW    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV   B2 B2 B1 B1   SC SC SC SC   SC SC SC SC   SC B1 SC
PoP 12hr           40    30      20    20      20    10      10    20
Rain shwrs     C    C  C  S  S    S  S     S                     S  S
Snowshwrs           C  C          S  S

$$
MTZ055-202300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
347 AM MDT Wed Sep 20 2017

Date             Wed 09/20/17            Thu 09/21/17            Fri 09/22/17
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                      43          29          39          27          39
Temp             29 34 39 43 42 38 38 35 30 32 37 38 38 32 31 28 28 28 34 37 38
Dewpt            27 30 33 35 35 36 35 34 30 31 32 31 31 30 31 28 28 26 28 29 26
RH               92 85 79 73 76 92 89 96100 96 82 76 76 92100100100 92 78 72 62
Wind dir         SW SW SW SW SW  S SW SW SW SW SW SW  S  N  N  W  E  S SW SW SW
Wind spd          8 14 20 19 13  9  8  4  2  4  5  8  6  3  2  3  2  2  3  6  6
Clouds           B2 OV OV B2 OV OV OV OV OV OV B2 B2 OV OV OV OV OV OV B2 B2 B2
PoP 12hr                     60          80          70          70          60
QPF 12hr                   0.15        0.37        0.11        0.37        0.16
Snow 12hr                     T       00-00           1
Rain shwrs              C  L  L  L  D  D  L  L  C  C  L  L  L              C  C
Snowshwrs         C  C                                      L  L  L  L  C  C  C
Tstms                   S  C  C


Date               Sat 09/23/17  Sun 09/24/17  Mon 09/25/17  Tue 09/26/17
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            23    41      22    42      23    44      25    46
Temp          27   25 36 38 26   24 38 40 26   25 39 43 29   27 41 45
Dewpt         26   24 25 21 24   21 25 20 23   22 25 23 25   24 28 29
PWind dir           E     N       N    NE      NE    SE      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B2 B2 B1 B2   B1 B1 SC B1   SC SC SC B1   SC SC SC
PoP 12hr           30    20      10     5       5     5       5     5
Rain shwrs     C          S
Snowshwrs      C    C  S  S

$$
MTZ008-202300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
347 AM MDT Wed Sep 20 2017

Date             Wed 09/20/17            Thu 09/21/17            Fri 09/22/17
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          29          45          31          39
Temp             35 41 51 54 51 43 40 36 30 33 41 45 43 36 35 32 32 31 36 38 38
Dewpt            26 29 31 31 31 32 32 30 25 26 26 24 27 25 27 26 27 28 29 29 31
RH               69 62 46 41 46 65 73 79 81 75 55 43 53 64 72 78 81 88 75 70 76
Wind dir          S  S SW SW SW  S  S SW SW SW  W NW  N  N  N  N  N  N  N NE NE
Wind spd         10 13 28 28 21 13  9  5  8  6  4  5  8  6  6  8  8  9  6  8 10
Wind gust              40 40
Clouds           B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B2 B2 OV OV OV OV OV OV OV
PoP 12hr                     40          30          30          60          70
QPF 12hr                   0.05        0.04        0.03        0.13        0.22
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C  C  C  C  C  S  S  S  S  C  C  C  C  L  L  L  L  C  C  C
Snowshwrs         C  C                    S                       L  L
Tstms                      C  S


Date               Sat 09/23/17  Sun 09/24/17  Mon 09/25/17  Tue 09/26/17
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            27    42      26    44      28    49      31    51
Temp          29   28 35 41 28   28 38 44 31   29 42 48 34   33 45 51
Dewpt         26   26 26 27 21   25 26 24 22   24 28 27 25   28 32 31
PWind dir          NE    NW      SW    SW       W    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B2 B2 B1 B1   SC SC SC SC   FW FW SC SC   SC SC SC
PoP 12hr           30    30      20    10      10    10      10    10
Rain shwrs     C    C     C  S
Snowshwrs      C    C  C  C  S    S

$$
MTZ011-202300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
347 AM MDT Wed Sep 20 2017

Date             Wed 09/20/17            Thu 09/21/17            Fri 09/22/17
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          36          57          36          49
Temp             42 48 57 61 60 49 45 43 37 42 52 57 55 47 42 38 36 41 45 48 49
Dewpt            31 32 30 27 26 29 31 32 31 33 33 34 32 33 32 33 32 35 34 34 34
RH               65 54 35 27 27 46 58 65 79 70 48 42 41 58 67 82 85 79 65 58 56
Wind dir         SW SW  W  W  W  W SW SW  W  W  W  W NW NW  N NW NW NW  N  N  N
Wind spd         16 20 21 20 18 10 10  9  9  9 11 11  9  8  6  4  5  8  8  9  8
Clouds           FW FW FW SC B1 SC SC SC SC SC SC SC B1 B1 B1 B2 B2 B2 OV OV B2
PoP 12hr                      5          10           5          10          30
QPF 12hr                      0           0           0           0        0.03
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                        C  C  C  C  S


Date               Sat 09/23/17  Sun 09/24/17  Mon 09/25/17  Tue 09/26/17
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    53      34    58      36    63      40    64
Temp          39   35 48 51 39   35 52 57 42   37 56 62 46   41 59 63
Dewpt         34   33 35 33 30   31 37 34 31   32 37 37 35   35 41 41
PWind dir          NW    SW       S     S       S     S      SW     W
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B2 B2 B1 B1   SC SC SC SC   FW FW FW SC   SC SC SC
PoP 12hr           20    30      20    10       5     5      10    10
Rain shwrs     S    S  C  S  S

$$
MTZ051-202300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
347 AM MDT Wed Sep 20 2017

Date             Wed 09/20/17            Thu 09/21/17            Fri 09/22/17
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          52          34          43
Temp             38 45 50 53 53 44 41 40 37 41 49 51 51 43 40 35 34 36 39 42 42
Dewpt            28 28 29 32 31 33 33 31 31 32 27 31 27 30 31 31 32 33 33 36 34
RH               67 51 44 44 43 65 73 70 79 70 42 46 39 60 70 85 92 89 79 79 73
Wind dir         SW SW SW  W  W SW SW SW SW  W NW NW  N NE NE  N  N  N  N  N  N
Wind spd         13 17 17 13 13  8  5  5  6  5  8  6  6  5  5  5  6  4  6  5  6
Clouds           SC B1 OV B2 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 OV OV OV OV OV OV OV
PoP 12hr                     30          30           5          50          60
QPF 12hr                   0.01        0.02           0        0.12        0.18
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 C  C  S  S                 C  C  C  C  L  L  C  C  C


Date               Sat 09/23/17  Sun 09/24/17  Mon 09/25/17  Tue 09/26/17
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            31    46      32    50      33    55      36    58
Temp          34   32 42 45 35   34 46 49 37   35 51 53 38   40 54 57
Dewpt         32   31 33 32 30   32 32 31 30   31 33 32 30   35 39 42
PWind dir           W     S      SE     W       S    SW      SW     W
Wind char          LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    OV   B2 B2 B2 B2   B1 B1 SC B1   SC SC SC SC   SC SC SC
PoP 12hr           40    30      20    20      20     5      10    10
Rain shwrs     C    C  C  S  S    S  S     S
Snowshwrs           C  C          S

$$
weather.gov/greatfalls



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