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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
258 AM MDT Fri Aug 18 2017

MTZ012-182300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
258 AM MDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      91          53          83          51          81
Temp          59 56 69 81 89 89 73 63 58 53 64 74 82 82 72 62 55 51 62 72 79 80
Dewpt         37 37 39 36 34 32 32 33 34 35 39 41 38 34 35 36 37 38 38 35 33 31
RH            44 49 33 20 14 13 22 32 40 50 40 30 21 18 26 38 51 61 41 26 19 17
Wind dir      SW SW SW SW  W  W  W SW SW SW  W NW NW NW  N NW SW  W  W  W NW NW
Wind spd       9 11 13 14 17 18 13 12 11 11 11  9  9 10 10  5  8  6  8  8  8  8
Clouds        FW CL CL CL CL FW FW FW FW FW FW FW FW 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               Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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            51    83      52    89      53    89      55    85
Temp          61   51 74 82 64   53 79 88 64   54 80 88 66   56 78 83
Dewpt         35   37 38 33 37   39 39 34 38   39 40 36 39   42 42 37
PWind dir          NW     N       E     S      SW    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      GN    LT
Avg clouds    SC   SC SC SC FW   FW FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr            5     5       0     0       0     0       5    10

$$
MTZ010-182300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
258 AM MDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      86          49          77          46          77
Temp          57 53 66 80 85 84 72 64 56 49 55 64 74 76 65 56 49 46 56 69 76 75
Dewpt         39 38 39 38 37 36 38 39 41 42 46 44 42 38 38 40 39 41 41 38 36 34
RH            51 57 37 22 18 18 29 40 57 77 72 48 32 25 37 55 68 83 57 32 23 22
Wind dir       W  W  W  W  W  W  W  W  W NW  N  N SW  W  W  W  W  W NW NW  W NW
Wind spd      10 11 14 16 20 24 18 18 13 13 13  9  8 10 10  6  9  8  9  9  9  8
Clouds        CL CL FW FW FW FW SC FW FW FW SC SC SC SC FW SC FW FW FW FW SC B1
PoP 12hr                      0           5           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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            47    80      48    86      50    85      51    84
Temp          56   47 71 79 60   49 77 84 62   51 77 83 62   52 76 82
Dewpt         38   41 39 35 39   41 40 35 40   43 41 37 42   44 42 38
PWind dir           W    SE      SE     S       S     W      SW    SW
Wind char          LT    LT      LT    GN      GN    LT      GN    GN
Avg clouds    B1   SC SC FW FW   FW FW FW FW   FW FW FW FW   FW SC SC
PoP 12hr            5     5       0     0       0     0       0    20
Rain shwrs                                                          S
Tstms                                                               S

$$
MTZ014-182300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
258 AM MDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      89          57          87          53          84
Temp          60 56 64 78 87 88 74 66 62 57 64 78 86 85 73 65 60 53 62 74 82 82
Dewpt         37 38 39 38 34 35 35 33 36 37 40 40 38 35 38 38 40 40 42 41 37 34
RH            42 51 40 24 15 15 24 29 38 47 41 26 18 17 28 37 47 61 48 30 20 18
Wind dir      SW SW  W  W  W  W  W  W SW SW  W  W NW  W NW  W  W  W NW  W NW NW
Wind spd       3  4  4  9 12 14 10  6  5  6  6  9 12 13  9  5  4  3  3  6  9  9
Clouds        CL CL CL CL CL FW CL FW FW SC FW FW FW SC SC SC FW FW CL FW FW SC
PoP 12hr                      0           5           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis          K  K  K


Date               Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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            53    86      53    90      55    89      56    86
Temp          63   53 76 85 64   54 79 89 66   56 81 87 67   57 79 84
Dewpt         35   38 41 36 38   40 42 38 40   40 42 39 42   43 45 42
PWind dir          NW     N       N     S      NW     S       S    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   SC SC SC FW   FW FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr            5     5       0     0       0     0       5    20
Rain shwrs                                                          S
Tstms                                                               S

$$
MTZ055-182300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
258 AM MDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      88          49          86          49          84
Temp          53 49 63 77 86 87 71 59 53 49 61 77 85 84 72 61 54 49 61 73 82 83
Dewpt         35 35 38 37 35 34 36 37 37 39 39 40 38 36 41 41 40 40 41 41 37 35
RH            50 58 39 24 16 15 28 44 54 68 44 26 19 18 33 48 59 71 48 31 20 18
Wind dir       S SE SE  W  W NW  S  S  S  S SW NW NW NW  N SW  S  S  W  W NW NW
Wind spd       5  6  3  6 11 10  8  8  8  8  6  6 10  9  8  5  5  4  2  4  6  6
Clouds        CL CL CL CL CL FW FW FW FW FW FW SC SC B1 B1 SC 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               Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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            49    85      49    88      51    88      52    84
Temp          59   49 74 84 60   50 77 86 61   53 80 86 63   53 78 82
Dewpt         40   41 41 36 41   42 42 37 42   42 43 39 45   45 46 43
PWind dir          NE     N      NE     S       S    SW       S     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   SC FW FW FW   CL CL FW FW   FW FW FW SC   SC SC SC
PoP 12hr            0     5       0     0       0     0      10    10

$$
MTZ055-182300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
258 AM MDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      78          34          77          34          76
Temp          44 36 51 70 77 77 63 49 40 34 49 68 77 74 62 50 41 34 50 68 75 74
Dewpt         35 32 36 37 35 37 36 32 29 31 29 34 33 33 33 31 32 32 34 35 31 34
RH            70 85 56 30 22 24 36 52 64 89 46 28 20 22 33 48 70 92 54 29 20 23
Wind dir      SW  S  S SW SW SW SW  S SE  S  S SW SW SW SW  S SE SE  S SW SW  W
Wind spd       3  3  3 10 13 12  6  5  4  4  4 10 14 12  4  2  2  1  1  6 13 10
Clouds        CL CL CL CL FW FW FW CL FW FW FW SC SC SC SC SC FW FW FW SC SC B1
PoP 12hr                      0           0           0           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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            38    77      38    78      40    77      41    75
Temp          51   38 68 75 52   39 70 75 52   42 71 73 53   42 70 72
Dewpt         36   35 35 35 37   34 36 37 38   36 40 39 42   39 43 44
PWind dir           S    SW       N     S       S     S      SW     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1   SC SC SC FW   FW FW FW SC   FW FW SC SC   SC SC SC
PoP 12hr           10     0       0     0       0     5       5    10

$$
MTZ008-182300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
258 AM MDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      86          48          85          46          82
Temp          52 49 58 74 84 85 70 58 53 48 57 75 84 83 69 59 51 46 55 71 81 80
Dewpt         32 33 39 37 35 32 33 36 35 36 42 41 37 38 37 39 36 36 40 41 39 36
RH            46 54 49 26 17 15 25 44 50 63 57 29 19 20 31 47 56 68 57 34 22 20
Wind dir       S  S SW SW  W  W  S  S  S  S SW SW  W  W  N  W SW SW  N  W  W NW
Wind spd       6  8  6  8 11 11  8  9  9 10 10  8 16 12  8  5  5  5  4  4  8  9
Clouds        CL CL CL CL CL FW FW CL FW FW FW FW SC B1 SC SC FW FW FW FW FW SC
PoP 12hr                      0           0           0           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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            47    83      48    85      49    85      50    81
Temp          57   47 73 81 59   49 75 84 59   51 77 83 61   51 74 79
Dewpt         36   35 39 36 37   36 40 37 38   38 42 41 43   42 45 43
PWind dir           N     N      NE     S      SW    SW       S     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   FW FW FW FW   FW CL CL FW   FW FW SC B1   B1 SC SC
PoP 12hr            5     0       0     0       0     5       5    10

$$
MTZ011-182300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
258 AM MDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      92          54          80          51          82
Temp          61 55 67 83 89 91 76 66 62 54 61 72 79 79 69 62 56 51 62 75 80 81
Dewpt         41 38 41 41 37 35 34 35 41 42 46 46 45 40 43 42 42 41 43 41 38 36
RH            48 53 39 23 16 14 22 32 46 64 58 39 30 25 39 48 59 68 50 29 22 20
Wind dir       S SW SW SW  W  W SW  W SW  W NW  N NW  N NE  E  E  E SE  W  W NW
Wind spd       3  5 10 12 12 13 10 11 13 12 13 10 10  8 10  8  6  5  9  9 10  8
Clouds        FW FW FW FW FW SC SC FW FW FW FW FW FW FW FW SC SC SC FW SC FW SC
PoP 12hr                      0           0           0           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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            51    83      51    89      54    90      54    88
Temp          62   51 73 82 62   52 79 88 65   55 81 88 66   55 80 86
Dewpt         40   41 41 37 40   42 43 38 43   44 45 40 44   46 46 41
PWind dir          NE    NE       E    SE      SE     S       S     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   SC SC SC FW   FW FW FW FW   FW FW FW FW   FW FW FW
PoP 12hr            5    10       0     0       0     0       5     0

$$
MTZ051-182300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
258 AM MDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      87          52          82          51          80
Temp          56 52 67 80 85 86 72 61 55 52 63 76 82 80 70 61 55 51 61 73 79 78
Dewpt         35 34 38 37 35 33 33 32 33 34 36 37 37 37 38 40 38 39 39 39 37 35
RH            45 50 34 21 17 15 24 33 43 50 36 24 20 21 31 46 53 63 44 29 22 21
Wind dir       S  S  W  W  W  W SW SW SW SW  W NW NW  N NE  E SE  S  W NW NW  N
Wind spd       5  6  6  9 10 12  9  9  9 11 10 11 11  9  5  6  6  6  5  8 10  9
Clouds        FW CL CL CL CL FW FW CL FW FW FW FW FW SC SC SC SC SC FW FW FW SC
PoP 12hr                      0           0           0           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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            51    81      51    86      53    87      55    84
Temp          59   51 74 79 60   53 78 84 62   55 80 85 64   56 77 82
Dewpt         37   37 38 37 38   39 40 39 41   41 41 39 43   43 42 41
PWind dir           E     E       E    SE      SE     W       E    SW
Wind char          LT    LT      LT    LT      GN    LT      LT    LT
Avg clouds    SC   SC SC SC SC   FW FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr            5    10       5     0       0     5      10     5

$$
weather.gov/greatfalls



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