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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
917 AM MDT Sat Oct 21 2017

MTZ012-212300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
917 AM MDT Sat Oct 21 2017

Date             Sat 10/21/17            Sun 10/22/17            Mon 10/23/17
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                      51          45          59          45          56
Temp                   47 50 47 45 48 51 54 55 59 58 53 49 47 46 46 46 54 56 51
Dewpt                  19 18 20 25 30 34 39 39 36 32 31 32 32 32 33 31 27 24 24
RH                     32 28 34 45 49 52 57 55 42 37 43 52 56 58 60 55 35 29 34
Wind dir               SW  W SW SW SW SW SW SW SW  W  W  W  W  W  W  W  W  W  W
Wind spd               21 20 16 16 23 26 27 26 35 36 31 23 19 19 17 14 18 19 13
Wind gust              32             37    36 54 55 43 33
Clouds                 FW FW SC B2 OV B1 B1 B1 B1 SC SC B1 SC SC SC SC SC SC SC
PoP 12hr                      5          10          10          10           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
High Wind                                 W  W  W  W  W  W


Date               Tue 10/24/17  Wed 10/25/17  Thu 10/26/17  Fri 10/27/17
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            39    67      47    64      28    39      26    49
Temp          39   42 63 64 51   49 64 53 34   28 37 38 32   27 44 49
Dewpt         27   30 32 31 33   29 30 29 24   18 15 16 19   18 22 25
PWind dir          SW    SW      SW    SW      NW    NW       W    SW
Wind char          GN    BZ      BZ    BZ      WY    BZ      GN    GN
Avg clouds    SC   SC FW FW FW   FW SC B1 B2   B2 B1 SC SC   SC SC B1
PoP 12hr            5     0       0    10      70    30       5     5
Rain                                       L
Snow                                       L    C  C

$$
MTZ010-212300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
917 AM MDT Sat Oct 21 2017

Date             Sat 10/21/17            Sun 10/22/17            Mon 10/23/17
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                      49          41          55          40          53
Temp                   46 48 44 41 42 44 48 50 55 54 49 45 44 43 42 41 51 52 49
Dewpt                  23 21 22 27 30 33 38 39 36 30 29 31 31 30 30 29 28 25 25
RH                     40 34 41 57 62 65 68 66 49 40 46 58 60 60 62 62 41 35 39
Wind dir                W  W SW SW  S SW SW  W  W  W  W  W  W  W  W  W  W  W  W
Wind spd               25 23 17 13 16 19 34 31 39 41 35 27 23 23 23 18 20 20 17
Wind gust              36 34             49 42 55 60 52 40          28
Clouds                 FW FW SC B2 OV OV B1 B1 SC SC SC SC SC SC SC SC SC SC SC
PoP 12hr                      5          10          20          10           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S
High Wind                                 W  W  W  W  W  W


Date               Tue 10/24/17  Wed 10/25/17  Thu 10/26/17  Fri 10/27/17
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            36    63      41    59      24    38      26    49
Temp          36   39 60 58 46   43 59 48 29   25 36 37 30   28 46 46
Dewpt         28   32 34 29 31   32 31 34 23   19 19 15 20   21 26 24
PWind dir           W     W       W    SW      NW    NW       W    SW
Wind char          GN    BZ      BZ    WY      WY    BZ      GN    GN
Avg clouds    SC   SC SC FW FW   FW SC B1 B2   B2 B1 SC SC   SC SC B1
PoP 12hr            0     0       0    50      60    20       5     5
Rain                                    C  L
Snow                                       L    S  S

$$
MTZ014-212300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
917 AM MDT Sat Oct 21 2017

Date             Sat 10/21/17            Sun 10/22/17            Mon 10/23/17
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                      52          44          59          43          56
Temp                   46 51 50 47 45 45 46 49 57 59 55 52 47 46 45 44 52 56 56
Dewpt                  25 22 25 31 33 35 37 39 39 39 39 41 36 37 36 35 32 31 30
RH                     43 32 37 53 62 68 71 68 51 47 55 66 65 71 70 70 46 38 37
Wind dir                W  W SW SW  S  S SW SW  W  W  W  W  W  W  W  W  W  W  W
Wind spd               13 13  9  8  9  9 12 11 21 25 20 18 16 13 10  8 12 13  9
Wind gust                                      32
Clouds                 SC B1 OV OV B2 B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 B1 SC SC SC
PoP 12hr                      5          10          20          20           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  S  S  S  S  S  S  S
High Wind                                 W  W  W  W  W  W


Date               Tue 10/24/17  Wed 10/25/17  Thu 10/26/17  Fri 10/27/17
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            36    64      38    65      29    40      26    48
Temp          41   36 57 63 47   39 62 60 42   30 35 40 32   27 42 48
Dewpt         30   28 33 30 30   28 34 35 34   18 14 20 24   21 22 25
PWind dir          SW    SW      SW    SW      NW     N       W    SW
Wind char          LT    LT      LT    GN      GN    GN      LT    LT
Avg clouds    SC   FW FW FW FW   FW FW SC B2   B2 B1 SC SC   SC SC SC
PoP 12hr            5     0       0    10      60    20       5     5
Rain                                       L    C
Snow                                            C  S

$$
MTZ055-212300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
917 AM MDT Sat Oct 21 2017

Date             Sat 10/21/17            Sun 10/22/17            Mon 10/23/17
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                      51          42          59          42          56
Temp                   45 50 48 43 43 44 47 48 57 59 56 50 46 43 43 43 52 56 53
Dewpt                  23 20 23 28 31 34 38 38 37 36 39 38 37 36 36 36 31 27 31
RH                     41 30 37 55 62 68 71 68 47 42 53 63 71 76 76 76 44 32 43
Wind dir                W  W SW  S SW  S SW SW SW  W  W  W  W  W  W  W  W  W  W
Wind spd               12 14 14 10 11 10 13 10 20 25 20 16 13 11  8  6  9 12  8
Clouds                 SC SC B2 B2 OV B2 B1 B2 B2 B2 B2 B1 B1 B2 B2 B1 SC SC SC
PoP 12hr                      5          10          30          20           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      C  C  S  S  S  S


Date               Tue 10/24/17  Wed 10/25/17  Thu 10/26/17  Fri 10/27/17
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    64      33    66      29    38      23    45
Temp          38   33 58 61 42   35 62 60 37   29 33 37 28   25 42 44
Dewpt         30   28 33 35 32   28 36 36 31   23 15 18 20   19 23 20
PWind dir          SW    SW      SW    SW       W    NW      SW    SW
Wind char          LT    LT      LT    LT      GN    LT      LT    LT
Avg clouds    SC   FW FW FW FW   FW FW SC B2   B2 B2 SC SC   SC SC SC
PoP 12hr            5     0       0     5      60    20       5     5
Rain                                       L
Snow                                       L    C  S

$$
MTZ055-212300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
917 AM MDT Sat Oct 21 2017

Date             Sat 10/21/17            Sun 10/22/17            Mon 10/23/17
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                      34          31          43          31          47
Temp                   31 32 32 32 32 32 31 33 40 43 43 40 35 35 31 33 42 47 43
Dewpt                  21 20 21 27 29 30 29 31 34 37 37 37 32 33 29 30 30 30 30
RH                     66 61 63 81 88 92 92 92 79 79 79 89 89 92 92 89 62 51 60
Wind dir               SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  W  W  W  W
Wind spd               13 16 14 12 12 12 13 11 17 18 17 12 10  8  5  4  8 10  8
Clouds                 B1 B2 B2 OV OV OV B2 B2 B2 OV OV OV B2 B2 B2 B1 B1 SC SC
PoP 12hr                     30          70          60          60          10
QPF 12hr                   0.01        0.11        0.07        0.07           0
Snow 12hr                     T           1       00-00
Rain shwrs                                   L  L  L  L  L  C  C
Snowshwrs                  S  L  L  L  L  L  L


Date               Tue 10/24/17  Wed 10/25/17  Thu 10/26/17  Fri 10/27/17
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            24    52      25    51      22    34      17    38
Temp          31   24 45 50 32   27 48 47 29   22 32 32 23   18 35 36
Dewpt         27   22 26 35 27   24 32 33 24   19 17 15 17   14 15 21
PWind dir           W    SW       S     S      SW     N      NW     W
Wind char          LT    LT      LT    LT      GN    GN      LT    LT
Avg clouds    SC   FW FW FW FW   FW FW FW B1   B2 B1 SC SC   FW SC SC
PoP 12hr            5     0       0     5      40    20      10     5
Rain                                       C
Snow                                       C    C  S

$$
MTZ008-212300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
917 AM MDT Sat Oct 21 2017

Date             Sat 10/21/17            Sun 10/22/17            Mon 10/23/17
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                      46          40          56          39          54
Temp                   39 44 44 41 40 42 42 45 54 56 52 47 44 43 41 40 49 54 51
Dewpt                  17 17 22 27 28 31 31 34 36 37 35 37 34 34 32 32 31 28 28
RH                     40 33 41 57 62 65 65 65 50 49 52 68 68 70 70 73 50 36 41
Wind dir               SW SW SW  S  S  S  S  S SW SW SW SW SW SW SW SW  W  W  W
Wind spd               12 16 16 17 17 17 19 19 23 27 24 17 16 12  8  6  8  8  9
Clouds                 B1 OV OV B2 B2 B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 B1 SC SC SC
PoP 12hr                     10          10          20          20           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      S  S  S  S


Date               Tue 10/24/17  Wed 10/25/17  Thu 10/26/17  Fri 10/27/17
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    61      35    62      28    39      24    47
Temp          35   33 55 59 41   37 58 59 41   28 36 38 29   25 42 46
Dewpt         27   26 31 34 31   27 34 31 32   21 21 17 20   17 26 19
PWind dir          SW    SW       S     S       W    NE       S     S
Wind char          LT    LT      GN    GN      GN    GN      LT    LT
Avg clouds    SC   FW FW FW FW   FW FW FW B1   B2 B1 SC SC   FW FW SC
PoP 12hr            5     0       0     0      50    20       5     5
Rain                                       C
Snow                                            C  S

$$
MTZ011-212300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
917 AM MDT Sat Oct 21 2017

Date             Sat 10/21/17            Sun 10/22/17            Mon 10/23/17
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          40          61          40          57
Temp                   50 53 49 41 40 45 48 51 59 61 55 49 45 42 40 41 52 57 52
Dewpt                  34 27 25 27 28 37 40 42 39 35 29 33 32 32 32 31 29 23 23
RH                     54 36 39 57 62 73 74 71 47 38 37 54 60 67 73 67 41 27 32
Wind dir                W  W  W SW SW SW SW SW  W  W  W  W  W  W  W  W  W NW NW
Wind spd               23 18 11  8  9 16 17 25 36 39 31 23 20 17 14 16 19 19 11
Wind gust              33             26       55 56 42                   29
Clouds                 FW FW FW FW B2 OV B2 B2 B1 B1 B1 SC SC SC SC SC SC FW FW
PoP 12hr                      5          30          20           5           0
QPF 12hr                      0        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          C  C  S  S
High Wind                                 W  W  W  W  W  W


Date               Tue 10/24/17  Wed 10/25/17  Thu 10/26/17  Fri 10/27/17
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    67      40    62      26    39      24    49
Temp          37   33 59 66 50   41 61 53 33   26 37 38 31   25 45 47
Dewpt         24   27 35 34 35   32 32 37 25   21 18 19 21   20 26 27
PWind dir           W    SW       W    SW      NW    NW       W    SW
Wind char          GN    GN      GN    BZ      WY    BZ      GN    GN
Avg clouds    FW   FW SC FW FW   FW SC SC B2   B2 B1 SC SC   SC SC B1
PoP 12hr            5     0       0    20      40    10       5     5
Rain                                    S  C
Snow                                       C    C

$$
MTZ051-212300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
917 AM MDT Sat Oct 21 2017

Date             Sat 10/21/17            Sun 10/22/17            Mon 10/23/17
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                      49          40          60          40          51
Temp                   47 49 45 40 43 47 51 52 59 59 54 47 45 42 40 41 50 50 48
Dewpt                  19 17 17 23 28 35 38 38 36 35 35 35 33 31 30 29 25 22 24
RH                     32 28 32 50 55 63 61 59 42 40 48 63 62 65 67 62 37 33 39
Wind dir                W  W  W SW SW SW SW  W  W  W  W  W  W  W  W  W NW NW NW
Wind spd               21 19 12 10 13 17 19 20 31 33 28 20 19 16 12 12 17 17 12
Wind gust              32                      42 47                   27 27
Clouds                 FW FW FW SC B2 OV B2 B2 B1 B1 B2 B1 B1 B1 SC SC SC SC SC
PoP 12hr                      0          10          10          20           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                            S  S
High Wind                                 W  W  W  W  W  W


Date               Tue 10/24/17  Wed 10/25/17  Thu 10/26/17  Fri 10/27/17
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    67      42    65      26    34      24    47
Temp          37   36 64 61 47   44 64 54 34   26 33 33 28   25 43 45
Dewpt         27   26 29 29 27   24 28 32 28   19 15 15 18   17 20 23
PWind dir           W     W       W     W      NW    NW       W     W
Wind char          GN    GN      GN    GN      BZ    BZ      GN    GN
Avg clouds    FW   SC FW FW FW   FW FW SC B2   B2 B2 SC SC   SC SC SC
PoP 12hr            0     0       0    10      50    20       5     5
Rain                                       C
Snow                                       C    C  S

$$
weather.gov/greatfalls




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