Point Forecast Matrices
Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
203 PM MST Sat Jan 20 2018

MTZ012-211100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
203 PM MST Sat Jan 20 2018

Date          Sat 01/20/18      Sun 01/21/18            Mon 01/22/18         Tue
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                      24          38          25          37          22
Temp             36 31 29 27 25 25 33 38 32 27 25 28 30 30 35 37 33 28 25 24 23
Dewpt            23 22 21 19 19 19 22 24 21 17 15 17 21 23 24 22 21 19 17 15 16
RH               59 69 72 71 78 78 63 57 63 65 65 63 69 75 64 54 61 68 71 68 74
Wind dir         SW SW SW SW SW SW SW SW SW  S  S SW SW SW SW  W SW SW SW SW SW
Wind spd         21 21 19 18 17 17 19 19 18 19 21 21 25 25 27 28 26 24 21 21 18
Wind gust                                            35 35 39 40 36
Clouds           SC SC SC FW CL CL CL CL FW FW B1 B1 B2 SC SC SC SC SC SC SC SC
PoP 12hr                      0           0           5          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date           01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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      22    43      27    39      19    29      15    29
Temp          34 32 23   27 41 41 30   28 37 36 23   19 28 27 19   16 26 29
Dewpt         22 19 15   19 27 28 23   19 24 25 17   13 17 17 12   10 15 17
PWind dir        SW      SW    SW       S    SW      SW     W       W    SW
Wind char        BZ      GN    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC SC   B1 B2 B2 B1   B2 B2 B2 B2   B2 B2 B1 B2   B2 SC SC
PoP 12hr          5       5    10      10    30      20    10      20    10
Snow                                          C  S    S        S

$$
MTZ010-211100-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
203 PM MST Sat Jan 20 2018

Date          Sat 01/20/18      Sun 01/21/18            Mon 01/22/18         Tue
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                      22          37          20          36          20
Temp             33 26 25 24 24 22 33 37 28 21 21 25 27 29 34 36 29 25 23 22 22
Dewpt            27 22 19 18 19 18 23 26 22 17 16 19 22 24 23 24 22 20 17 17 18
RH               78 85 78 77 81 84 66 64 78 84 81 78 81 81 64 61 75 81 77 81 84
Wind dir          W  W  W  W  W  W SW SW  S  S  S SW SW SW  W  W  W  W  W  W  W
Wind spd         23 19 19 19 19 19 17 18 26 23 24 24 18 24 31 32 28 25 23 21 21
Wind gust        33                      36                43 44 40 35
Clouds           SC SC FW FW CL CL FW FW SC B1 B2 B1 B1 SC FW FW FW FW FW FW FW
PoP 12hr                      0           0          10          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date           01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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          35      18    40      23    38      16    27      11    27
Temp          31 27 18   24 38 37 26   24 33 37 20   17 24 25 12   14 24 26
Dewpt         22 21 13   18 27 31 21   19 23 33 15   13 14 19  8    9 14 19
PWind dir         W      SW    SW      SW    SW       W     W       W     W
Wind char        BZ      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW SC B1   B2 B2 B2 B2   B2 B2 B2 B2   B2 B2 B1 B2   B1 SC SC
PoP 12hr          5      10    10      10    30      20    20      10     5
Snow                                       S  C  S          S

$$
MTZ014-211100-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
203 PM MST Sat Jan 20 2018

Date          Sat 01/20/18      Sun 01/21/18            Mon 01/22/18         Tue
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                      10          27          12          29          13
Temp             31 24 19 15 13 10 19 27 20 15 12 13 13 15 24 29 25 21 17 16 15
Dewpt            22 18 14 11 10  6 13 17 12  9  7  8  9 12 17 18 16 15 12 12 11
RH               69 77 80 84 87 83 77 65 71 77 80 80 84 88 74 63 68 77 80 84 84
Wind dir         SW SW SW SW SW SW  S SE  S  S  S  S  S SW SW  W  W  W SW SW SW
Wind spd          4  4  4  3  4  4  3  6  4  4  3  4  5  5  8 11  9  6  5  5  4
Clouds           B1 SC SC FW SC FW FW FW SC B1 B1 B1 B2 B1 B1 SC SC FW SC SC B1
PoP 12hr                      5           0          10          20          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                  S  S  S  S


Date           01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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          26      12    31      17    35      13    25       9    25
Temp          20 23 15   13 24 31 23   17 29 34 23   13 20 25 14    9 19 25
Dewpt         13 14 10    8 16 21 18   12 21 24 19    9 13 15  9    5 11 15
PWind dir        SW       S     S       S     S      SW     W       W    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 SC SC   B1 B2 B2 B1   B1 B2 B2 B2   B2 B2 B1 SC   SC SC B1
PoP 12hr         10      10    10      20    40      20    20      10    10
Snow                               S       C  C  S    S  S

$$
MTZ055-211100-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
203 PM MST Sat Jan 20 2018

Date          Sat 01/20/18      Sun 01/21/18            Mon 01/22/18         Tue
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                       5          25           7          27          10
Temp             22 14 13 11  6  6 15 25 17  9  7 11 14 18 23 27 23 17 14 10 11
Dewpt            17 10  9  8  2  3  9 15 10  4  1  5  8 14 16 18 16 12  9  6  7
RH               81 84 84 87 83 87 77 65 73 80 76 76 76 84 74 68 74 80 80 83 83
Wind dir          S  S  S  S  S  S SW  W  S  S  S  S  S  S SW  W SW SW SW SW SW
Wind spd          3  4  3  4  4  4  4  4  3  4  4  4  9 10  9 10  5  5  5  6  5
Clouds           B1 SC B1 SC B1 SC SC FW FW FW SC B1 B2 OV B2 B2 B1 SC SC SC B1
PoP 12hr                      5           5          10          40          20
QPF 12hr                      0           0           0        0.02           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                  C  C  C  C  S  S  S  S
Wind chill                   -3 -3             -2                         -1
Min chill                    -3    -3          -2                            -1


Date           01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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          26      11    32      18    34      13    26       7    25
Temp          21 24 13   13 26 32 24   18 30 32 18   13 22 25 11    8 18 25
Dewpt         14 15  7    8 19 22 18   13 21 23 15   10 14 17  7    4 10 16
PWind dir        SW       S     S       S     S      SW     W       W    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 SC SC   B1 B1 B1 B1   B1 B2 B2 B2   B2 B2 B1 B1   SC SC B1
PoP 12hr         10      10    20      20    40      40    20      20    10
Snow                         S  S  S    S  C  C  C    C  S  S  S    S

$$
MTZ055-211100-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
203 PM MST Sat Jan 20 2018

Date          Sat 01/20/18      Sun 01/21/18            Mon 01/22/18         Tue
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          23           4          23           3
Temp             22 13  8  3 -1 -2 15 23 17  7  4  8  9 12 18 23 21 14  7  4  3
Dewpt            15  9  6  1 -3 -4 12 12 12  4  2  7  7 10 16 17 17 12  5  2  1
RH               74 84 91 91 91 91 88 62 80 87 91 96 91 91 92 77 84 92 91 91 91
Wind dir          N  N  E SE  E  S SW SW SW  S  S  S  S SW SW SW SW SW SW SW SW
Wind spd          4  3  3  2  3  1  3  8  5  4  4  5  8  9 11 11  8  5  4  4  4
Clouds           SC SC SC SC SC SC FW FW SC SC B1 B2 OV OV OV OV B2 B2 B2 B2 B2
PoP 12hr                      0           0          40          60          30
QPF 12hr                      0           0           0        0.07        0.03
Snow 12hr                 00-00       00-00           T
Snow                                            C  C  L  L  C  C  C  C  S  S  S
Wind chill                   -9             -2 -5 -2 -3                -2 -5 -6
Min chill                    -9    -3          -5    -4    -2          -2    -6


Date           01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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          23      10    27      15    28      10    24       1    22
Temp          15 21 13   11 22 27 20   15 24 27 14   10 18 23  7    2 16 22
Dewpt         12 16 11    9 19 19 17    8 20 19 11    9 12 15  5    0 12 14
PWind dir        SW      SW     S       S     S      SW    NW       W    SW
Wind char        LT      LT    GN      LT    GN      LT    LT      LT    LT
Avg clouds    B2 B1 B1   B2 OV B2 B2   B2 B2 B2 OV   B2 B2 B2 B1   SC B1 B1
PoP 12hr         20      20    30      30    40      40    20      20    20
Snow           S  S       S  C  S  S    C  C  C  C    C  S  S  S    S     S

$$
MTZ008-211100-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
203 PM MST Sat Jan 20 2018

Date          Sat 01/20/18      Sun 01/21/18            Mon 01/22/18         Tue
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                       8          27          13          29          11
Temp             24 18 18 15 10  9 19 27 20 14 14 15 15 18 25 29 24 17 15 13 11
Dewpt            14 11 13 10  5  5  9 13  9  5  6  8  8 13 15 16 14 11  8  6  5
RH               65 73 80 80 80 83 64 55 62 67 70 73 73 80 65 58 65 77 73 73 76
Wind dir         SW  S  S  S  S  S SW  S  S  S  S  S  S  S SW  W SW SW SW  S  S
Wind spd          4  6  8  8  9  8  9  8  6  9 10 10 12 10 11 10 10  8  9  9  9
Clouds           SC SC SC FW SC FW FW FW SC SC B1 B1 B2 OV B2 B1 B1 SC SC SC B1
PoP 12hr                      5           0          20          30          10
QPF 12hr                      0           0           0        0.02           0
Snow 12hr                 00-00       00-00       00-00
Snow                                            S  S  C  C  C  C
Wind chill                   -3 -3                                           -2
Min chill                    -3    -4                                        -2


Date           01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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          29      16    38      23    35      15    29       9    28
Temp          22 25 17   19 34 37 26   24 34 32 20   15 26 27 13   10 21 28
Dewpt          9 15 11   13 24 24 19   16 23 19 14   10 15 15  7    4 10 17
PWind dir         S       S     S       S     S      SW     W      SW     S
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 SC B1   B1 B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 SC   SC SC B1
PoP 12hr         10      10    20      20    40      30    20      10    10
Snow                         S  S  S    S  C  C  C    C  S  S

$$
MTZ011-211100-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
203 PM MST Sat Jan 20 2018

Date          Sat 01/20/18      Sun 01/21/18            Mon 01/22/18         Tue
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                      15          27          12          33          13
Temp             27 23 18 16 16 15 20 27 21 14 13 13 20 23 29 33 26 18 14 13 17
Dewpt            20 18 15 13 13 11 14 19 16  9 10  9 16 19 22 25 20 13 11 10 14
RH               74 81 88 88 88 84 77 71 81 80 87 84 84 84 75 72 78 80 88 87 88
Wind dir         SW SW SW SW SW SW SW SW  S  S  S SW SW SW SW  W  W SW SW SW  W
Wind spd         12 13 12 12 12 10 13 11 10  9  9  8 11 17 20 20 18 18 17 17 12
Clouds           SC FW FW FW FW FW CL CL FW FW SC B1 B2 SC SC SC SC FW FW FW FW
PoP 12hr                      0           0           0           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill                                                             -3 -4
Min chill                                                              -3    -4


Date           01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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          27      11    31      16    34      14    25       5    22
Temp          22 22 11   17 28 30 17   22 32 32 16   17 20 24  8    7 15 22
Dewpt         16 16  7   13 21 22 13   18 25 25 13   14 13 17  5    3  9 14
PWind dir        SW       S     S       S     S       W     W       W    SW
Wind char        GN      GN    GN      GN    LT      GN    GN      GN    GN
Avg clouds    FW FW FW   SC B1 B1 B1   B1 B1 B2 B2   B1 B2 B2 B2   B2 B1 SC
PoP 12hr          5       5    10      10    10      20    20      10    10
Snow                                             S    S  S

$$
MTZ051-211100-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
203 PM MST Sat Jan 20 2018

Date          Sat 01/20/18      Sun 01/21/18            Mon 01/22/18         Tue
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                      16          35          17          34          18
Temp             28 22 20 19 17 18 30 35 27 18 18 19 24 28 31 34 28 23 22 19 19
Dewpt            18 16 15 13 13 12 19 23 18 12 10 11 17 24 21 21 17 17 17 15 15
RH               66 77 81 77 84 77 63 61 68 77 70 70 74 85 66 58 63 77 81 84 84
Wind dir         SW SW SW SW SW SW SW  W SW  S  S  S SW SW  W  W  W  W  W  W  W
Wind spd         11 11  8  9  9 10 10 10 10 10 11 13 14 14 18 18 19 17 18 18 16
Clouds           FW FW FW FW CL CL CL CL FW FW SC SC B2 B2 B1 SC SC SC SC SC SC
PoP 12hr                      0           0           0          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date           01/23/18  Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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      16    41      24    38      19    27      13    27
Temp          28 26 17   20 39 38 27   25 37 34 24   19 26 25 17   14 25 24
Dewpt         17 18 11   15 25 27 20   20 23 26 20   15 16 17 13   10 14 15
PWind dir         W      SW    SW      SW    SW       W     W       W     W
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC FW SC   SC B1 B1 B1   B1 B1 B2 B2   B2 B2 B1 B1   B1 SC SC
PoP 12hr          5       5    10      10    20      30    20      20    10
Snow                                       S  S  C    S  S          S

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



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