Point Forecast Matrices
Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
859 AM MST Sat Jan 20 2018

MTZ012-202300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
859 AM MST Sat Jan 20 2018

Date                Sat 01/20/18            Sun 01/21/18            Mon 01/22/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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          34          25          37
Temp                   33 38 32 28 26 25 25 25 30 34 30 28 25 29 29 30 36 37 33
Dewpt                  19 21 21 20 19 18 19 19 20 20 19 18 16 18 21 23 25 23 21
RH                     56 50 63 71 74 74 78 78 66 56 63 66 68 63 72 75 64 56 61
Wind dir               SW SW SW SW SW SW SW SW SW SW  S  S  S SW SW SW SW  W SW
Wind spd               19 17 17 13 16 14 16 16 17 16 16 18 19 19 18 20 21 26 23
Clouds                 CL FW SC SC FW FW FW FW FW FW FW FW B1 B2 B2 SC SC SC SC
PoP 12hr                      0           5           0          10          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            21    33      20    39      24    36      17    28
Temp          25   21 31 30 21   23 37 38 28   25 35 32 21   18 28 22
Dewpt         17   14 18 18 14   15 23 26 21   18 22 23 15   12 17 13
PWind dir          SW    SW       S     S      SW    SW       W     W
Wind char          BZ    BZ      GN    BZ      GN    GN      GN    GN
Avg clouds    SC   SC SC SC SC   B1 B2 B2 B1   B1 B2 B2 B2   B2 B1 B1
PoP 12hr           10     5      10    20      10    40      30    20
Snow                                 S             C  C  C    S  S  S

$$
MTZ010-202300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
859 AM MST Sat Jan 20 2018

Date                Sat 01/20/18            Sun 01/21/18            Mon 01/22/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      37          20          34          22          36
Temp                   34 37 29 27 25 22 21 20 28 34 27 22 23 26 29 29 35 35 30
Dewpt                  23 25 22 21 19 16 16 16 18 23 21 18 18 20 24 24 25 24 23
RH                     64 61 75 78 78 77 81 84 66 64 78 84 81 78 81 81 66 64 75
Wind dir                W  W  W  W  W  W  W  W SW SW  S SW SW SW SW SW  W  W  W
Wind spd               20 21 21 19 16 14 16 13 14 14 16 12 12 13 16 23 31 28 28
Wind gust                                                              41 39
Clouds                 SC SC SC FW FW FW CL FW FW FW SC SC B2 B1 B1 FW SC FW SC
PoP 12hr                      5           5           0          20          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                        S  S


Date               Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            20    31      16    35      19    31      13    25
Temp          22   22 31 27 17   20 32 33 21   21 30 28 18   13 24 20
Dewpt         17   18 20 21 13   16 22 27 17   17 20 24 13    9 14 15
PWind dir           W     W      SW     S      SW    SW       W     W
Wind char          BZ    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    SC   SC SC SC SC   B1 B2 B1 B1   B1 B2 B2 B1   B1 B1 B1
PoP 12hr           10     5      10    20      20    30      20    20
Snow                                 S  S       S  C  C  S    S     S

$$
MTZ014-202300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
859 AM MST Sat Jan 20 2018

Date                Sat 01/20/18            Sun 01/21/18            Mon 01/22/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      30          12          27          13          29
Temp                   27 30 29 23 18 16 14 12 21 27 22 18 15 15 13 16 25 29 26
Dewpt                  18 20 20 17 14 12 11  9 15 16 14 11 10 10  9 13 18 18 17
RH                     68 66 69 77 84 84 88 87 77 63 71 73 80 80 84 88 74 63 68
Wind dir               SW SW SW SW SW SW SW SW SW SW  S  S  S SW SW SW SW  W  W
Wind spd                4  5  5  4  3  3  4  4  4  6  5  5  4  4  4  4  6 11 10
Clouds                 SC SC B1 SC SC FW SC FW FW FW FW SC B1 B2 B2 B1 B1 SC SC
PoP 12hr                      5           5           5          20          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                        S  S  S  S


Date               Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            13    27      12    32      16    29      11    24
Temp          16   13 21 27 15   13 24 32 23   16 26 28 18   11 17 24
Dewpt         11    9 13 16 10    8 16 22 19   12 18 19 14    7  9 15
PWind dir          SW    SW       S     S       S     S      SW     W
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   B1 B1 B1 SC   B1 B2 B1 B1   B1 B2 B2 B2   B2 B2 B1
PoP 12hr           10    10      10    20      20    40      30    20
Snow                                 S  S  S    S  C  C  C    S  S  S

$$
MTZ055-202300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
859 AM MST Sat Jan 20 2018

Date                Sat 01/20/18            Sun 01/21/18            Mon 01/22/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      23           6          24           4          27
Temp                   16 23 22 15 13 11  7  7 15 24 15  6  5 11 13 16 22 27 23
Dewpt                  12 17 14 11  8  8  3  3  8 14  8  0 -1  5  7 13 15 18 14
RH                     84 77 71 84 80 87 83 83 73 65 73 76 76 76 76 88 74 68 68
Wind dir                S SW  W  S  S  S  S  S SW SW  S  S  S  S  S SW SW  W SW
Wind spd                3  3  2  4  4  3  4  4  3  4  4  5  5  6  6  8  5  6  5
Clouds                 SC SC B1 SC SC SC SC SC SC FW SC FW B1 B2 B2 B2 B2 B2 B1
PoP 12hr                      0           5           5          20          40
QPF 12hr                      0           0           0           0        0.03
Snow 12hr                 00-00       00-00       00-00
Snow                                                        S  S  C  C  C  C  S
Wind chill                               -2 -2          -4 -6
Min chill              -4                -2    -3          -7    -6


Date               Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            10    26      12    33      17    32      12    25
Temp          14   10 21 25 15   14 27 33 22   18 29 31 19   12 21 24
Dewpt          9    6 14 15 10   10 20 23 16   14 21 22 16    9 14 16
PWind dir          SW    SW       S     S       S     S      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1   B1 B1 B1 SC   B1 B2 B2 B2   B1 B2 B2 B2   B2 B2 B2
PoP 12hr           20    10      10    20      20    50      50    20
Snow           S    S                S  S  S    S  C  C  C    C  S  S

$$
MTZ055-202300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
859 AM MST Sat Jan 20 2018

Date                Sat 01/20/18            Sun 01/21/18            Mon 01/22/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      23          -5          22           7          23
Temp                   18 23 20 11  6  3 -2 -4 14 22 17  8  8 12 11 13 17 23 21
Dewpt                  15 12 13  8  4  1 -4 -6 11 12 12  5  6 10  9 12 15 17 17
RH                     88 62 74 87 91 91 91 91 88 65 80 87 91 91 91 96 92 77 84
Wind dir                N  N  N  N  N NE NE  E SW SW SW  S  S SW SW  S SW SW SW
Wind spd                2  3  4  3  2  2  2  1  3  9  6  6  5  6  8  9  9  9  8
Clouds                 B1 B1 B1 B1 B1 SC SC SC FW SC SC B1 B2 B2 OV OV OV OV B2
PoP 12hr                      5           5           5          30          60
QPF 12hr                      0           0           0        0.01        0.05
Snow 12hr                 00-00       00-00       00-00
Snow                                                  S  S  C  C  L  L  C  C  C
Wind chill                                              -3 -2    -1
Min chill                                -2    -5          -5    -1    -1


Date               Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             5    23      11    27      14    28       8    23
Temp           9    5 18 23 13   13 22 27 17   15 23 28 16    8 16 22
Dewpt          8    3 14 16 12   11 19 20 15   10 19 19 14    7 11 15
PWind dir          SW    SW       S     S       S     S      SW    NW
Wind char          LT    LT      LT    GN      LT    GN      LT    LT
Avg clouds    B2   B1 B2 B2 B1   B2 B2 OV OV   B2 B2 OV OV   OV OV B2
PoP 12hr           30    20      20    20      30    60      50    30
Snow           C    S  S          S  S  S  C    C  C  L  C    C  C  C

$$
MTZ008-202300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
859 AM MST Sat Jan 20 2018

Date                Sat 01/20/18            Sun 01/21/18            Mon 01/22/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      25          12          26          15          30
Temp                   14 25 22 19 18 16 14 12 20 26 19 15 15 17 17 17 25 30 26
Dewpt                   6 12 11 12 12 11  9  8 10 12  9  6  7 10  9 12 14 18 15
RH                     70 57 62 74 77 80 80 84 64 55 64 67 70 73 70 80 62 60 62
Wind dir               SW  W SW  S  S  S  S  S SW  S  S  S  S  S  S  S SW SW SW
Wind spd                6  4  5  6  8  8  8  8  8  8 10 11 13 13 12 10 10  9 10
Clouds                 FW FW B1 FW FW FW FW FW FW FW SC SC B2 B2 B2 B2 B2 B1 B1
PoP 12hr                      5           5           5          30          30
QPF 12hr                      0           0           0        0.01        0.03
Snow 12hr                 00-00       00-00       00-00
Snow                                                        C  C  C  C  C  C


Date               Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            12    29      17    35      20    34      15    27
Temp          17   12 26 27 18   19 31 34 22   22 32 32 20   15 23 26
Dewpt         10    7 14 15 13   12 20 21 16   16 22 20 15    9 12 14
PWind dir          SW     S       S     S       S     S      SW     W
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   SC B1 B1 B1   B1 B2 B2 B2   B2 B2 B2 B2   B2 B2 B2
PoP 12hr           10    10      10    20      20    50      30    20
Snow                                 S  S  S    S  C  C  C    C  S  S

$$
MTZ011-202300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
859 AM MST Sat Jan 20 2018

Date                Sat 01/20/18            Sun 01/21/18            Mon 01/22/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      32          17          27          13          32
Temp                   24 32 27 23 21 20 19 17 22 27 21 14 13 15 22 24 30 32 27
Dewpt                  16 22 21 18 18 16 16 13 16 19 16  9 10 11 18 20 23 24 20
RH                     71 66 78 81 88 84 88 84 77 71 81 80 87 84 84 84 75 72 74
Wind dir               SW SW SW SW SW SW SW SW SW SW  S  S  S  S SW SW SW  W  W
Wind spd               17 14 12 12 13 12 12 11 12 11  9 10  9  9 11 14 19 20 17
Clouds                 FW FW FW SC SC FW FW FW FW FW FW FW SC B1 B2 B1 SC SC SC
PoP 12hr                      5           5           5          10          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            13    26       9    30      13    30      11    22
Temp          14   17 24 24 10   13 26 28 14   18 29 27 13   11 13 21
Dewpt         11   12 17 17  7    9 18 21 10   15 22 20 10    7  6 15
PWind dir           W    SW       S     S       S     S       W     W
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   SC SC FW FW   SC B1 B2 B1   B1 B1 B2 B2   B2 B2 B1
PoP 12hr           10    10       5    20      10    20      30    20
Snow                                    S          S  S  C    C  S  S

$$
MTZ051-202300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
859 AM MST Sat Jan 20 2018

Date                Sat 01/20/18            Sun 01/21/18            Mon 01/22/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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          18          32          18          34
Temp                   30 34 26 21 21 21 19 19 28 32 26 18 19 21 25 27 32 34 29
Dewpt                  19 19 17 16 16 15 15 14 17 19 16 13 11 14 19 23 21 21 18
RH                     63 54 68 81 81 77 84 80 63 58 65 80 70 74 78 85 63 58 63
Wind dir               SW  W SW SW SW SW SW SW  W  W SW  S  S  S SW  W  W  W  W
Wind spd               10  9  9  8  8  9 10  9  9  9  9  9 10 12 12 13 16 17 16
Clouds                 CL CL FW FW FW FW FW FW CL CL FW FW SC SC B2 B2 B1 SC SC
PoP 12hr                      0           5           0           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            18    30      16    37      21    35      16    26
Temp          21   18 29 26 18   19 35 34 25   22 34 32 22   16 25 23
Dewpt         16   14 17 17 12   14 22 25 19   17 22 24 18   12 15 16
PWind dir           W     W      SW    SW      SW    SW       W     W
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   SC SC SC SC   SC B1 B1 B1   B1 B2 B2 B2   B2 B2 B1
PoP 12hr            5     5       5    20      10    40      40    30
Snow                                    S          C  C  C    C  C  S

$$
http://www.weather.gov/greatfalls



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