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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
225 PM MST Fri Jan 19 2018

MTZ012-201100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
225 PM MST Fri Jan 19 2018

Date          Fri 01/19/18      Sat 01/20/18            Sun 01/21/18         Mon
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      25          36          21          35          25
Temp             36 29 28 28 25 26 32 36 32 28 24 24 21 23 30 35 31 28 25 28 30
Dewpt            24 20 19 18 18 19 22 23 22 20 17 16 15 16 20 22 22 21 18 20 22
RH               61 69 68 66 74 74 66 59 66 71 74 71 77 74 66 59 69 75 74 71 72
Wind dir         SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  S  S SW SW SW
Wind spd         12 11 14 16 17 17 17 17 14 16 16 16 16 16 16 16 16 18 19 19 18
Clouds           B2 FW FW FW FW FW FW SC B1 SC SC FW SC FW FW FW FW FW B1 B1 B2
PoP 12hr                      5           5           5           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date           01/22/18  Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          38      22    34      17    40      19    32      13    25
Temp          37 33 25   23 33 29 18   20 35 39 25   20 31 28 17   13 24 19
Dewpt         24 21 17   16 20 18 12   13 23 28 19   15 22 19 11    8 14 11
PWind dir        SW      SW    SW      SW     S      SW     W       W    SW
Wind char        BZ      BZ    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    B1 SC SC   SC SC SC SC   SC B2 B2 B1   B1 B2 B2 B2   B2 B2 B1
PoP 12hr         10      10    10      10    20      10    50      40    20
Snow                                       S             C  C  C    S  S  S

$$
MTZ010-201100-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
225 PM MST Fri Jan 19 2018

Date          Fri 01/19/18      Sat 01/20/18            Sun 01/21/18         Mon
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      25          36          19          35          23
Temp             31 27 27 27 26 26 32 36 30 24 22 21 19 21 29 35 28 23 23 25 28
Dewpt            24 23 22 20 22 21 23 25 25 20 17 16 15 16 19 24 22 19 17 20 23
RH               75 85 81 74 85 81 69 64 81 84 81 81 84 81 66 64 78 84 77 81 81
Wind dir          W  W  W  W  W  W  W  W  W  W  W  W  W  W SW SW SW SW SW SW SW
Wind spd         20 20 19 19 17 14 16 18 17 14 16 13 13 13 13 12 14 10 12 11 16
Clouds           FW FW FW FW FW FW SC SC SC SC FW FW SC FW SC FW SC SC B2 B1 SC
PoP 12hr                      5           5           5           0          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                                    S  S


Date           01/22/18  Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          36      20    32      13    37      15    28       9    23
Temp          35 29 21   22 32 27 14   18 29 36 18   19 28 26 14   10 22 18
Dewpt         24 21 16   16 22 22 11   15 19 30 15   17 19 22 10    6 13 13
PWind dir         W       W     W      SW     S      SW     W      NW     W
Wind char        WY      BZ    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC SC   SC SC SC SC   B1 B2 B1 B1   B1 B2 B2 B1   B2 B2 B2
PoP 12hr         10      10     5      10    30      20    40      20    20
Snow                                       C  S  S       C  C  S    S  S  S

$$
MTZ014-201100-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
225 PM MST Fri Jan 19 2018

Date          Fri 01/19/18      Sat 01/20/18            Sun 01/21/18         Mon
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      13          28          12          27          13
Temp             34 27 22 20 17 13 23 28 26 22 18 16 14 12 20 27 22 18 15 15 13
Dewpt            26 22 17 16 14 10 16 17 18 16 13 12 10  8 14 17 14 12 10 12  9
RH               72 81 81 84 88 87 74 63 71 77 80 84 84 84 77 65 71 77 80 88 84
Wind dir          W SW SW SW  S  S  S SW SW SW SW SW  S SW  S SW  S  S  S  S SW
Wind spd          5  5  5  5  4  4  3  4  4  4  4  3  3  4  4  5  5  5  4  4  4
Clouds           B2 B1 SC SC FW SC SC B1 B1 SC SC SC SC SC SC FW SC SC B2 B2 B2
PoP 12hr                     10          10           5           5          30
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                                    C  C  S


Date           01/22/18  Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          31      13    29      10    36      13    28       9    24
Temp          27 27 18   13 24 28 13   12 25 36 20   13 23 27 17    9 18 21
Dewpt         19 18 13    9 16 18  8    8 18 26 16   10 17 19 13    5 10 13
PWind dir        SW      SW    SW       S     S       S     W       W     W
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 SC SC   SC SC B1 B1   B1 B2 B1 B1   B2 OV B2 B2   B2 B2 B1
PoP 12hr         20      10    10      10    20      30    40      30    20
Snow           S                           S  S  C    C  C  C  C    S  S  S

$$
MTZ055-201100-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
225 PM MST Fri Jan 19 2018

Date          Fri 01/19/18      Sat 01/20/18            Sun 01/21/18         Mon
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                       9          26           6          25          10
Temp             31 26 20 16 12  9 19 26 21 16 13 10  8  7 16 25 19 12 10 16 18
Dewpt            28 23 17 14  9  6 12 15 12 11  8  6  3  2  9 15 11  6  4 11 13
RH               88 88 88 92 87 87 74 62 68 80 80 83 79 79 73 65 70 76 76 80 80
Wind dir          W SW  S  S  S  S SW  W  S  S  S  S  S  S SW SW  S  S  S  S  S
Wind spd          5  4  4  3  3  4  3  2  2  3  4  3  3  4  3  4  4  5  5  5  5
Clouds           OV OV B1 B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 SC SC SC FW B1 B1 OV
PoP 12hr                     30           5          10           5          20
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                     T       00-00       00-00
Snow              C  S  S                                               S  S  C
Wind chill                                              -2
Min chill                                                  -3


Date           01/22/18  Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          30      10    28      11    36      16    31       9    25
Temp          26 25 16   10 23 27 13   14 29 36 23   16 28 30 20    9 21 22
Dewpt         20 16  9    5 14 17  6   10 21 26 17   12 20 21 15    6 13 15
PWind dir        SW      SW    SW       S     S       S    SW       W     W
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B1 B1   B1 B1 B1 B1   B1 B2 B2 B2   B2 OV B2 B2   B2 B2 B2
PoP 12hr         40      10    10      10    20      20    60      40    20
Snow           C  C                        S     S    S  C  L  C    C  S  S

$$
MTZ055-201100-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
225 PM MST Fri Jan 19 2018

Date          Fri 01/19/18      Sat 01/20/18            Sun 01/21/18         Mon
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                       3          24          -6          21           7
Temp             25 21 17 14  8  3 16 24 21 11  7  4 -3 -4 14 21 16  8  8 12  8
Dewpt            21 19 16 13  7  2 13 12 14  8  5  2 -5 -6 11 12 12  6  7 10  6
RH               84 92 96 96 96 95 88 60 74 87 91 91 91 91 88 68 84 91 96 91 91
Wind dir         SW SW SW SW NW  N  N  N  N  N  N NE NE SE SW SW SW  S  S SW  S
Wind spd          8  6  4  3  3  2  3  4  3  2  2  3  2  1  3  9  6  6  5  6  8
Clouds           OV OV B2 OV B2 B1 SC SC SC SC B1 SC SC SC SC SC B1 B1 B2 B2 OV
PoP 12hr                     70          10           5           5          40
QPF 12hr                   0.08           0           0           0        0.03
Snow 12hr                     1       00-00       00-00
Snow              L  L  C  C                                      S  S  C  C  C
Obvis                  PF PF PF PF
Wind chill                                        -3                -3 -2    -4
Min chill                                            -6    -6          -5    -4


Date           01/22/18  Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          24       6    24      11    29      15    27       6    21
Temp          17 23 14    6 19 23 13   13 23 29 21   15 21 26 12    6 17 20
Dewpt         15 18 13    5 14 16 11   12 21 23 20   13 20 19  9    5 14 12
PWind dir        SW      SW    SW       S     S       S     S      SW     W
Wind char        GN      LT    LT      LT    GN      LT    LT      LT    LT
Avg clouds    OV B2 B2   B2 B2 B2 B1   B2 OV B2 OV   OV OV B2 OV   B2 B2 B1
PoP 12hr         50      30    20      30    40      50    50      30    20
Snow           C  C  C    S  S  S  S    C  C  C  C    C  C  C  C    C  S  S

$$
MTZ008-201100-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
225 PM MST Fri Jan 19 2018

Date          Fri 01/19/18      Sat 01/20/18            Sun 01/21/18         Mon
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      14          26           8          27          17
Temp             30 26 23 19 15 14 20 26 23 17 16 13 11  8 18 27 21 17 20 20 22
Dewpt            22 22 19 16 11 11 11 12 12 10 10  7  5  3  9 13 11 10 13 14 14
RH               72 85 84 88 84 88 67 55 62 73 77 76 76 79 67 55 65 73 74 77 71
Wind dir         NW  S  S  S SW  S SW SW SW SW SW  S  S  S  S  S  S  S  S  S  S
Wind spd          6  5  6  6  6  6  8  4  5  6  6  8  8  8  8  8 10 11 11 12 10
Clouds           OV OV SC SC SC SC SC SC B1 SC SC SC SC SC FW FW SC SC B2 B1 B2
PoP 12hr                     40          10           5           5          30
QPF 12hr                      0           0           0           0           0
Snow 12hr                     T       00-00       00-00
Snow              C  C  S                                               C  C  S
Wind chill                                           -1 -4
Min chill                                            -1    -4


Date           01/22/18  Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          31      12    30      16    36      19    32      13    27
Temp          30 26 18   12 27 28 19   18 33 34 24   20 31 29 18   13 24 26
Dewpt         21 15 10    6 14 16 12   12 21 20 16   15 21 18 12    9 14 14
PWind dir        SW       S     S       S     S       S    SW       W    SW
Wind char        GN      GN    GN      GN    GN      GN    GN      LT    GN
Avg clouds    B2 B1 B1   B1 B1 B1 B1   B1 B2 B2 B2   B2 B2 B2 B2   B2 B2 B1
PoP 12hr         30      20    10      10    20      30    50      30    20
Snow           S  C       S                S  S  S    C  C  C  C    C  S  S

$$
MTZ011-201100-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
225 PM MST Fri Jan 19 2018

Date          Fri 01/19/18      Sat 01/20/18            Sun 01/21/18         Mon
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      19          29          12          28          15
Temp             30 23 19 19 20 19 24 29 22 17 15 12 15 12 19 28 21 17 15 17 25
Dewpt            24 17 16 15 16 15 18 21 16 12 12  8 11  8 14 20 16 12 12 14 20
RH               78 77 88 84 84 84 77 72 77 80 88 84 84 84 80 71 81 80 88 88 81
Wind dir         SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  S  S  S SW SW
Wind spd         12 13 14 14 13 14 14 14 11 11 11 11 10 11 11 11  9 10  9  9 11
Clouds           SC SC FW SC SC SC SC FW SC SC SC SC FW SC FW FW FW FW SC SC B2
PoP 12hr                      5           5           5           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill                                        -2    -2
Min chill                                            -2    -2


Date           01/22/18  Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          33      14    27       8    30      10    27       8    18
Temp          30 27 15   18 25 24 10   12 26 28 11   15 26 24 10    8  9 15
Dewpt         22 20 11   13 19 16  7    8 19 21  7   12 19 18  6    4  2 10
PWind dir        SW       W    SW      SW    SE       S     W       W     W
Wind char        BZ      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 SC FW   SC SC SC SC   SC B1 B2 B1   B1 B1 B2 B2   B1 B2 B2
PoP 12hr         10      10    10       5    10      10    30      30    20
Snow                                                     S  C  C    S  S

$$
MTZ051-201100-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
225 PM MST Fri Jan 19 2018

Date          Fri 01/19/18      Sat 01/20/18            Sun 01/21/18         Mon
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      18          33          16          32          19
Temp             32 26 23 21 20 19 29 33 27 21 19 19 16 18 26 32 26 19 20 20 25
Dewpt            25 22 18 16 17 16 19 21 19 16 14 14 12 14 17 20 16 14 13 15 19
RH               75 85 81 81 88 88 66 61 71 81 80 80 84 84 68 61 65 80 74 81 78
Wind dir          W  W  W SW SW SW  W  W SW SW SW SW SW SW  W SW SW SW SW SW SW
Wind spd          9  9  9 10 11 10 10 10  9  8  9 10 10  9  9  9  9  9 10 12 12
Clouds           OV B2 SC FW FW FW FW FW FW SC SC SC SC FW FW FW FW FW SC SC B2
PoP 12hr                     10           0           5           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow


Date           01/22/18  Tue 01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          34      18    30      14    38      17    31      11    23
Temp          32 29 20   19 29 27 17   17 35 34 21   18 31 26 18   11 22 18
Dewpt         20 17 14   14 18 19 11   13 23 26 17   15 22 20 14    7 13 13
PWind dir         W       W     W      SW    SW      SW     W      NW    NW
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 SC SC   SC SC SC SC   SC B1 B1 B1   B1 B2 B2 B2   B2 B2 B1
PoP 12hr         10       5     5       5    20      20    50      50    30
Snow                                          S       S  C  C  C    C  C  S

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



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