Point Forecast Matrices
Issued by NWS Great Falls, MT

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10
000
FOUS55 KTFX 211555
PFMTFX

Point Forecast Matrices
National Weather Service Great Falls MT
955 AM MDT Thu Sep 21 2017

MTZ012-212300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
955 AM MDT Thu Sep 21 2017

Date             Thu 09/21/17            Fri 09/22/17            Sat 09/23/17
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                      53          33          41          31          51
Temp                   49 52 52 46 41 38 34 33 36 39 41 37 35 33 31 34 46 50 50
Dewpt                  29 27 27 28 27 27 28 29 32 35 37 33 33 30 30 32 36 35 33
RH                     46 38 38 49 57 64 78 85 85 85 85 85 92 89 96 92 68 56 52
Wind dir               NW  N NE NE NE NE  N  N  N  N NE NE NE  S SW SW SW SW SE
Wind spd                6  5  9 10 13 13 13 12 11  9  6  6  5  6  4  4  4  4  5
Clouds                 SC B1 B1 B1 B2 OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1
PoP 12hr                      5          50          70          50          20
QPF 12hr                      0        0.03        0.19        0.04           0
Snow 12hr                 00-00       00-00       00-00
Rain                                S  C  L  L  L  L  C  C  C  C
Rain shwrs                                                           S
Snow                                      L  L  L
Snowshwrs                                                         S


Date               Sun 09/24/17  Mon 09/25/17  Tue 09/26/17  Wed 09/27/17
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    57      36    62      40    65      44    67
Temp          39   34 52 56 42   37 56 61 45   41 58 65 50   45 62 66
Dewpt         33   31 38 33 35   33 40 35 36   35 44 42 41   40 44 44
PWind dir           S    SW      SE    SW       S    SW       W    SW
Wind char          LT    LT      LT    LT      GN    GN      GN    GN
Avg clouds    B1   SC SC SC FW   SC SC SC SC   SC SC B1 B1   SC SC SC
PoP 12hr           10    20       5     5       5    10      20    20
Rain shwrs             S                                      S  S

$$
MTZ010-212300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
955 AM MDT Thu Sep 21 2017

Date             Thu 09/21/17            Fri 09/22/17            Sat 09/23/17
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                      50          31          41          30          52
Temp                   45 50 46 38 33 32 31 32 37 40 40 38 34 32 30 34 45 51 50
Dewpt                  29 30 29 25 25 29 29 30 29 30 32 33 30 30 28 30 32 32 31
RH                     53 46 51 59 72 88 92 92 72 67 73 82 85 92 92 85 60 48 48
Wind dir               NW NW  N  N  N  N  N  N  N  N  N  N NW SW  S SW  S  S SW
Wind spd                9  9 12 13 14 11 11  8 10  9  9  6  5  5  4  4  6  5  8
Clouds                 SC B2 B2 B2 B2 OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1
PoP 12hr                     10          10          40          40          20
QPF 12hr                      0           0        0.03        0.05           0
Snow 12hr                 00-00       00-00           T
Rain                                            C  C  C  C  C
Rain shwrs                                                           S
Snow                                      C  C  C  C           C
Snowshwrs                                                         S


Date               Sun 09/24/17  Mon 09/25/17  Tue 09/26/17  Wed 09/27/17
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    58      35    62      41    65      42    67
Temp          37   32 54 57 42   36 57 61 47   42 60 64 49   43 63 66
Dewpt         30   28 34 32 33   33 35 36 37   38 42 40 40   40 40 43
PWind dir          SW     S       S    SW      SW     W      NW     W
Wind char          GN    LT      GN    LT      GN    GN      GN    GN
Avg clouds    B1   FW FW SC SC   SC SC FW SC   SC SC SC B1   SC SC SC
PoP 12hr           10     5       5     5      10    10       5    10

$$
MTZ014-212300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
955 AM MDT Thu Sep 21 2017

Date             Thu 09/21/17            Fri 09/22/17            Sat 09/23/17
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          36          41          32          50
Temp                   50 54 53 46 44 41 39 36 37 40 41 37 35 34 32 34 42 48 49
Dewpt                  33 30 31 30 33 34 33 33 33 33 31 34 32 32 30 32 34 35 33
RH                     52 40 43 53 65 76 79 89 85 76 67 89 89 92 92 92 73 60 54
Wind dir               NW  N  N  N  N  N  N  N  N  N  N NW NW NW NW NW NW  N NE
Wind spd                6  5  8  8 10 13 10 11  9 10  9  5  4  3  2  1  2  3  4
Clouds                 B1 B1 B2 B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1
PoP 12hr                     10          60          80          50          20
QPF 12hr                      0        0.13        0.23        0.04           0
Snow 12hr                 00-00       00-00       00-00
Rain                          S  S  L  L  D  D  L  L  C  C  C  C
Rain shwrs                                                           S
Snow                                      D  D  L              C
Snowshwrs                                                         S


Date               Sun 09/24/17  Mon 09/25/17  Tue 09/26/17  Wed 09/27/17
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            33    56      34    60      38    62      41    66
Temp          36   34 51 55 39   35 54 59 43   39 56 61 47   42 59 65
Dewpt         31   32 40 32 33   31 40 32 33   33 44 38 40   37 46 43
PWind dir          SW    SW       S    SW       S    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1   SC SC SC SC   SC SC SC SC   SC SC B1 B1   SC SC SC
PoP 12hr           10    10       5    10      10    10      30    30
Rain shwrs                                                    C  C

$$
MTZ055-212300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
955 AM MDT Thu Sep 21 2017

Date             Thu 09/21/17            Fri 09/22/17            Sat 09/23/17
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          35          44          29          48
Temp                   48 52 50 43 42 38 38 35 39 43 42 37 35 30 29 33 42 48 46
Dewpt                  37 33 39 40 40 36 36 33 33 36 39 35 33 29 29 30 32 32 31
RH                     65 48 66 89 93 92 92 92 79 76 89 92 92 96100 89 67 54 55
Wind dir                W NW  N SE NW  N  N  N  N NE NE  E  E  E  E  E  W NW  N
Wind spd                4  5  6 18 17  8  8  6  4  4  5  5  4  4  4  3  2  3  4
Clouds                 OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B1 B1 B1
PoP 12hr                     40          80          70          40          20
QPF 12hr                   0.01        0.35        0.19        0.03           0
Snow 12hr                 00-00       00-00       00-00
Rain                    S  C  L  L  D  D  L  L  L  L  C  C  S
Rain shwrs                                                                    S
Snow                                                           S
Snowshwrs                                                         S  S


Date               Sun 09/24/17  Mon 09/25/17  Tue 09/26/17  Wed 09/27/17
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            30    51      32    55      35    58      37    61
Temp          34   31 46 50 35   34 50 54 39   36 52 58 43   38 56 60
Dewpt         31   29 32 33 30   32 35 34 31   33 35 39 36   36 42 41
PWind dir          SE    NW       E     W       S    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1   SC SC B1 B1   SC SC SC SC   SC SC B1 B1   SC SC SC
PoP 12hr           20    20      20    20       5    10      30    20
Rain shwrs     S       S  S       S  S  S                     C  S
Snowshwrs              S          S

$$
MTZ055-212300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
955 AM MDT Thu Sep 21 2017

Date             Thu 09/21/17            Fri 09/22/17            Sat 09/23/17
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                      41          30          39          24          43
Temp                   38 40 38 34 32 32 31 31 37 39 38 32 28 25 24 28 38 43 41
Dewpt                  34 37 37 33 32 32 31 30 30 32 30 30 27 25 24 25 26 30 27
RH                     85 89 96 96100100100 96 75 76 73 92 96100100 88 62 60 57
Wind dir                N NE NE NE  W NW NW  S SW SW  S  S  S SE  E  E  N  N  N
Wind spd                3  4  4  9  9  3  2  2  5 10  8  3  2  1  1  1  2  4  8
Clouds                 OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B1 B1 SC SC SC
PoP 12hr                     80          80          70          30          20
QPF 12hr                   0.15        0.33        0.13        0.02           0
Snow 12hr                 00-00           1           1
Rain                    D  D  D  D              L  L  C
Rain shwrs                                                              S  S  S
Snow                          D  D  D  D  L  L  L  L  C  C  S  S
Snowshwrs                                                         S  S  S  S
Tstms                                           C  C  S
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date               Sun 09/24/17  Mon 09/25/17  Tue 09/26/17  Wed 09/27/17
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    45      24    47      27    50      30    53
Temp          26   24 41 44 29   25 43 46 31   28 46 49 35   31 48 52
Dewpt         26   23 29 25 26   23 28 24 28   25 30 28 32   29 35 34
PWind dir          NE    NE       N     N      NW     S       W     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   SC B1 SC B1   SC SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr           20    20      20    10      10    10      20     5
Rain shwrs     S       S  S  S                                S
Snowshwrs      S       S  S  S    S                           S

$$
MTZ008-212300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
955 AM MDT Thu Sep 21 2017

Date             Thu 09/21/17            Fri 09/22/17            Sat 09/23/17
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          33          38          27          45
Temp                   43 46 44 38 38 36 34 33 34 37 36 30 31 28 27 30 38 43 44
Dewpt                  30 27 31 28 32 33 31 31 30 30 30 25 27 25 26 28 28 29 29
RH                     60 47 60 67 79 89 89 92 85 75 79 81 85 88 96 92 67 57 55
Wind dir                N  N NE NE NE  N  N  N  N  N NE NE  E  E  E  S  W NW  N
Wind spd                4  9 16 19 14 12  8 11  9  9 10  8  5  5  8  5  3  4  8
Clouds                 OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 SC B1
PoP 12hr                     30          80          80          40          20
QPF 12hr                   0.01        0.24        0.22        0.03           0
Snow 12hr                 00-00       00-00       00-00
Rain                    S  S  C  C  D  D  D  D  L  L  C
Rain shwrs                                                                    S
Snow                                D  D  D  D  L  L     C  C  C
Snowshwrs                                                         S  S
Tstms                                              S


Date               Sun 09/24/17  Mon 09/25/17  Tue 09/26/17  Wed 09/27/17
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            27    50      29    54      33    58      36    60
Temp          30   27 43 50 33   31 48 53 37   35 51 58 41   37 53 60
Dewpt         25   25 32 29 25   26 33 29 29   28 34 36 34   33 40 37
PWind dir           N    NW       E     W       W    SW       W     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1   SC SC SC SC   SC SC SC SC   SC SC SC B1   SC SC SC
PoP 12hr           20    10       5     5      10    10      30    20
Rain shwrs     S                                              C  S
Snowshwrs      S

$$
MTZ011-212300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
955 AM MDT Thu Sep 21 2017

Date             Thu 09/21/17            Fri 09/22/17            Sat 09/23/17
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                      57          35          47          33          55
Temp                   52 56 56 46 39 36 35 38 42 46 46 38 35 34 34 39 49 54 54
Dewpt                  36 33 31 32 29 30 31 32 34 35 32 34 31 32 31 34 36 37 36
RH                     54 42 38 58 67 79 85 79 73 65 58 85 85 92 89 82 61 52 50
Wind dir                W NW NW  N  N  N  N  N  N  N  N SW  W  S NW  W SW SW  S
Wind spd                9 10  9  8  8  5  6  8  8  8  5  5  3  2  3  3  4  5  5
Clouds                 FW SC B1 SC B1 B2 OV OV OV OV OV B2 B2 B2 B2 B2 B2 B1 B1
PoP 12hr                      5          20          40          50          20
QPF 12hr                      0           0        0.08        0.03           0
Snow 12hr                 00-00       00-00       00-00
Rain                                      C  C  C  C  C  C  C  C
Rain shwrs                                                        S  S        S


Date               Sun 09/24/17  Mon 09/25/17  Tue 09/26/17  Wed 09/27/17
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    60      37    63      38    66      42    67
Temp          40   36 56 59 44   38 57 62 46   39 60 65 47   43 61 66
Dewpt         34   33 38 35 35   34 40 37 36   34 42 41 36   39 44 44
PWind dir           S     S      SE     S       S     S      SW     W
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1   SC SC SC SC   SC SC SC SC   SC SC B1 SC   SC SC SC
PoP 12hr           20    20       5    10      10    10      10    20
Rain shwrs     S    S  S                                            S

$$
MTZ051-212300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
955 AM MDT Thu Sep 21 2017

Date             Thu 09/21/17            Fri 09/22/17            Sat 09/23/17
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          34          40          31          49
Temp                   50 52 51 45 42 38 37 34 35 39 39 35 32 32 31 36 42 48 47
Dewpt                  27 30 26 30 31 34 33 31 31 36 33 33 29 31 31 34 33 40 33
RH                     41 43 37 55 65 85 85 89 85 89 79 92 88 96100 92 70 74 58
Wind dir               NW  N NE NE  E NE NE NE  N  N  N  N  E SE SE  S  S NE  E
Wind spd                6  5  6  5  6  8  6  5  8  6  6  5  4  4  5  3  3  3  5
Clouds                 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B1
PoP 12hr                     10          70          80          50          20
QPF 12hr                      0        0.18        0.33        0.03           0
Snow 12hr                 00-00       00-00       00-00
Rain                          C  C  C  L  D  D  L  L  C  C
Rain shwrs                                                           S        S
Snow                                      D  D              C  C
Snowshwrs                                                         S


Date               Sun 09/24/17  Mon 09/25/17  Tue 09/26/17  Wed 09/27/17
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    53      35    57      37    61      41    63
Temp          36   32 49 52 39   36 53 56 41   39 58 59 46   42 61 61
Dewpt         33   30 36 35 35   33 38 37 35   35 39 39 39   38 42 46
PWind dir           S     E      SE     W       S     W       W     W
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1   SC SC B1 B1   SC SC SC SC   SC SC SC B1   SC SC SC
PoP 12hr           20    20      20    20      20    10      20    10
Rain shwrs     S       S     S    S  S  S  S    S        S
Snowshwrs              S

$$
weather.gov/greatfalls



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.