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Point Forecast Matrices
National Weather Service Great Falls MT
842 PM MST Wed Feb 21 2018

MTZ012-221100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
842 PM MST Wed Feb 21 2018

Date          Wed 02/21/18      Thu 02/22/18            Fri 02/23/18         Sat
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          13          -7          22          10
Temp                   -2 -4 -7 -7  6 13  5 -3 -7 -6 -6 -4 13 21 19 10 12 15 16
Dewpt                  -8-10-11-12 -2  3 -2 -6 -9 -8 -9-11  1  6  5  2  3  7  9
RH                     75 75 82 78 69 63 72 86 91 91 86 71 58 52 54 69 66 70 73
Wind dir               SW SW SW SW  W  N  N  W SW SW SW SW SW SW SW SW SW SW SW
Wind spd               10  6  5  4  3  4  8  5  5  8  6 13 20 21 16 14 18 18 19
Clouds                 FW FW FW SC SC B1 B2 B1 B1 SC FW FW FW CL FW SC SC B1 B1
PoP 12hr                      0           5          10           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snowshwrs                                                                     S
Obvis                                                      BS BS       BS BS BS
Wind chill            -18-18-20-18 -1    -8-15-20-21-20-23 -5       -7 -5 -2 -1
Min chill             -18   -20   -21    -8   -20   -21   -24          -7    -5


Date           02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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          28       7    31      15    29       4    21       1    19
Temp          24 23  8   11 26 31 20   16 27 24  6    7 15 21  3    3 13 19
Dewpt         13 11  4    5 11 16 13   11 15 13  0    3  5 10 -2    0  4 10
PWind dir        SW      SW    SW      SW    SW      SW     W       W    SW
Wind char        BZ      GN    BZ      BZ    BZ      GN    GN      GN    GN
Avg clouds    B1 B1 B2   B1 SC B1 B2   B2 B2 B2 SC   SC SC SC B1   B1 B1 SC
PoP 12hr         30      30    10      30    30      20    10      20    30
Snow                                       C  C  S    S        S    S  C  S
Snowshwrs      S  C  S    C        C    C

$$
MTZ010-221100-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
842 PM MST Wed Feb 21 2018

Date          Wed 02/21/18      Thu 02/22/18            Fri 02/23/18         Sat
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          14          -8          21          10
Temp                   -7 -8 -7 -8  7 14  8 -3 -8 -7 -6 -5 13 20 18 15 13 12 13
Dewpt                 -10-12-11-11  1  5  1 -5-10-10-11-10  3  7  6  6  4  5  6
RH                     86 82 82 86 76 67 72 91 91 86 78 78 63 56 59 67 67 73 73
Wind dir                W  W NW NW  N  N  N  W  W  W  W SW  W  W  W  W  W  W  W
Wind spd                8  8  8  8  9  9  8  4  4  6  9 12 21 27 24 20 24 19 17
Wind gust                                                     39
Clouds                 FW SC SC B1 B1 B1 B2 B1 SC SC FW CL CL FW SC B1 B1 B1 B1
PoP 12hr                      0           5           5           0          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snowshwrs                                                                     S
Obvis                                                      BS BS BS BS BS BS
Wind chill            -23-23-23-24 -7    -4-13-19-21-22-24 -6       -3 -7 -6 -4
Min chill             -23   -23   -25    -4   -19   -23   -24    -1    -7    -7


Date           02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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          25       5    29      11    26       2    19      -2    17
Temp          21 20  6   10 26 27 16   11 22 24  4    5 15 18  0    1 12 16
Dewpt         12 11  2    4 14 15 10    7 12 13  0    1  6  8 -3   -2  4  7
PWind dir         W       W     W      SW     W       W    NW      NW     W
Wind char        BZ      GN    WY      BZ    BZ      GN    GN      GN    GN
Avg clouds    B1 B1 B2   SC B1 B2 B2   B2 B1 SC SC   SC SC B1 B1   B1 B1 SC
PoP 12hr         30      20    10      30    20      20    10      20    20
Snow                                       S  S  S                  S  S  S
Snowshwrs      S  C  S    S        C    S

$$
MTZ014-221100-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
842 PM MST Wed Feb 21 2018

Date          Wed 02/21/18      Thu 02/22/18            Fri 02/23/18         Sat
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          18          -2          23          10
Temp                    1 -1 -3 -1 11 17 14 10  4  1 -1  0 14 23 20 14 15 12 12
Dewpt                  -4 -6 -7 -4  2  6  5  5  0 -3 -5 -4  3  8  7  5  7  6  5
RH                     79 79 82 87 66 61 67 80 83 83 83 83 61 52 56 67 70 76 73
Wind dir               SW SW  W  W NW  N  N NW  W  W SW SW  W  W  W  W SW SW  S
Wind spd                2  1  1  2  2  6  6  4  4  2  2  3  8 10 11  6  6  5  5
Clouds                 FW SC SC B1 B1 B1 B2 B2 B1 SC SC FW FW FW FW SC B1 B1 B1
PoP 12hr                      0          10          20           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snowshwrs                                 S  S                                C
Wind chill                                     -5       -8
Min chill              -2    -3    -3          -5    -9   -10


Date           02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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      10    30      17    30       6    24       3    21
Temp          21 24 12   11 23 30 22   17 25 29 12    6 17 24  8    3 14 21
Dewpt          9 13  8    5  9 17 13   12 13 17  8    1  5 12  2   -2  3 10
PWind dir        SW       W    SW      SW     W       W     W      NW     W
Wind char        GN      LT    GN      GN    GN      LT    LT      LT    LT
Avg clouds    B1 B2 B2   B1 SC B2 B2   B2 B2 B1 B1   SC SC SC B1   B1 B1 SC
PoP 12hr         40      30    20      40    30      30    20      20    30
Snow                                       C  C  C    S     S  S    S  C  C
Snowshwrs      C  C  C    S  S  S  C    C

$$
MTZ055-221100-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
842 PM MST Wed Feb 21 2018

Date          Wed 02/21/18      Thu 02/22/18            Fri 02/23/18         Sat
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          20          -2          21           6
Temp                    4  1 -2 -2 12 19 17  7  3  1  0 -1 11 20 20 10  7  7  9
Dewpt                  -2 -4 -6 -6  2  5  7  4  0 -2 -4 -4  0  5  7  4  1  1  3
RH                     75 79 82 82 63 54 64 87 87 87 83 87 60 51 56 76 76 76 76
Wind dir                S SE SE SE NW NW  W  S SE  S  S  S  W  W  W SW SW SW  S
Wind spd                4  3  3  3  2  5  4  5  4  4  3  3  4  8  8  8  6  6  5
Clouds                 SC SC SC SC B1 B1 B2 B2 B2 B1 B1 SC SC FW FW SC B1 B1 B1
PoP 12hr                      0          10          20          10          30
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snowshwrs                                 S  S  S  S                    C  C  C
Wind chill             -6 -7-10-10          -3 -6 -9 -8 -9          -1 -5 -5 -1
Min chill              -6   -10   -11          -6   -10   -10          -5    -5


Date           02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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       8    24      14    29       7    25       2    22
Temp          20 23 11    9 20 24 19   15 26 28 13    7 20 24  5    4 17 21
Dewpt          7 10  7    3  6  9 10    9 13 16 10    2  9 10  0   -1  5 11
PWind dir        SW      SW    SW      SW    SW      SW     S       S    SW
Wind char        GN      LT    GN      GN    GN      LT    LT      LT    LT
Avg clouds    B2 B2 B2   B2 B1 B1 B2   B2 OV B2 B2   B2 SC SC B1   SC B1 SC
PoP 12hr         40      40    30      30    40      40    20      20    30
Snow                                       C  C  C    C  S  S  S    S  C  C
Snowshwrs      C  C  C    C  S  C  S    C

$$
MTZ055-221100-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
842 PM MST Wed Feb 21 2018

Date          Wed 02/21/18      Thu 02/22/18            Fri 02/23/18         Sat
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          19          -9          19           1
Temp                    1 -3 -7 -9 11 19 16  7  0 -4 -5 -8 12 19 16  9  6  3  3
Dewpt                  -1 -5 -9-10  3  5  5  4 -2 -6 -7 -9  5  6  6  6  4  0  0
RH                     91 91 91 95 69 54 61 87 91 91 91 95 73 56 64 87 91 87 87
Wind dir                S  S SE SE SE SW SW  E  E  E SE  E SW SW SW SW SW SW SW
Wind spd                3  3  2  2  2  5  5  2  3  3  1  2  4 10  9  8  8  6  9
Clouds                 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 SC SC B1 B1 B2 B2 B2
PoP 12hr                     60          20          20          20          40
QPF 12hr                   0.03           0           0           0        0.01
Snow 12hr                     1       00-00       00-00
Snowshwrs               C  C     S        S  S  S  S  S  S  S  S  C  C  C  C  L
Wind chill             -7-11                   -8-13                -3 -7-10-12
Min chill              -7   -14   -10          -8   -13    -8          -7   -12


Date           02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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          19       1    20      10    26       9    26       3    23
Temp          12 19  9    1 14 20 14   10 23 25 15    9 20 25  9    3 17 23
Dewpt          6 12  6   -1  6  9 11    8 15 19 13    8 11 17  6    2  9 16
PWind dir        SW      SW    SW      SW    SW      SW    SW      SW     S
Wind char        GN      LT    GN      GN    GN      GN    LT      LT    LT
Avg clouds    B2 B2 OV   OV B1 B2 B2   OV OV OV OV   OV B2 B1 B1   B1 B1 B1
PoP 12hr         60      40    30      40    50      40    30      20    20
Snow                                       C  C  C    C  C  S  S    S  S  S
Snowshwrs      L  C  C    C  C  C  C    C

$$
MTZ008-221100-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
842 PM MST Wed Feb 21 2018

Date          Wed 02/21/18      Thu 02/22/18            Fri 02/23/18         Sat
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          16          -2          19           5
Temp                   -1 -2 -3 -1 10 16 13  7  4  2  0 -1  8 18 17  7  9  6  6
Dewpt                  -4 -5 -6 -3  1  4  2  4  1  0 -2 -4  0  6  4  2  3  3 -1
RH                     87 87 86 91 66 58 61 87 87 91 91 87 69 59 56 79 76 87 72
Wind dir                S  S SE SE NE NE NE NE NE NE  S  W SW SW SW SW SW SW  S
Wind spd                8  6  4  4  6  6  9  8  8  5  5  8  9 11 12 11 11 10 12
Clouds                 SC SC B1 B1 B1 B2 B2 B2 B2 B2 B1 SC FW FW FW SC B1 B1 B1
PoP 12hr                     20          10          30          10          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snowshwrs                                 C  C  C  C                    S  S  C
Wind chill            -15-16-13-11 -1       -6-10 -9-11-16 -5       -8 -5 -9-10
Min chill             -15   -17   -15         -10   -12   -16    -1    -8   -10


Date           02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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          22       6    24      13    29       7    25       4    24
Temp          17 20  9    6 17 24 18   13 26 28 12    7 17 25 10    4 16 24
Dewpt          6  6  5    1  5  9 13    8 14 14  7    5  7 12  5    2  7 11
PWind dir        SW      SW    SW       S    SW      SW     S      SE     S
Wind char        BZ      GN    GN      BZ    GN      GN    GN      GN    GN
Avg clouds    B1 B2 B2   B2 B1 B2 B2   B2 OV B2 B2   B2 SC SC SC   B1 B1 SC
PoP 12hr         40      30    20      40    40      30    20      20    20
Snow                                       C  C  C    C  S  S  S    S  S  S
Snowshwrs      C  C  C    C  S  S  C    C

$$
MTZ011-221100-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
842 PM MST Wed Feb 21 2018

Date          Wed 02/21/18      Thu 02/22/18            Fri 02/23/18         Sat
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                     -20           7         -12          15           2
Temp                  -15-17-20-18 -5  6  2 -3 -9-10-12 -8  3 14 11  7  4  4  3
Dewpt                 -19-20-22-20 -9  0 -3 -6-11-13-15-11 -2  6  5  3 -1 -1 -2
RH                     81 86 90 90 82 76 79 86 91 86 86 86 79 70 76 83 79 79 79
Wind dir               SE  W  W  W  W  W  W SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd                4  3  4  6  8  8  6  6  5  6  6  8 11 13 12 12 11 16 14
Clouds                 FW FW FW FW SC SC B1 B2 B1 B1 SC SC FW CL FW SC SC B1 B1
PoP 12hr                      0           0           5           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snowshwrs                                                                     S
Obvis                     PF PF
Wind chill            -28-27-33-35-20 -7-11-17-22-25-27-24-13    -4 -9-12-14-15
Min chill             -29   -34   -35   -14   -22   -29   -27    -8   -12   -15


Date           02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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       1    25       8    26       1    18      -4    13
Temp          18 19  3    5 17 25 16    8 20 24  4    2 13 18  3   -4  9 12
Dewpt         10 14  0    0  9 18 12    4 12 17  0   -1  7 10 -1   -6  4  6
PWind dir         W       W    SW      SW    SW       W     W       W     W
Wind char        BZ      GN    GN      BZ    BZ      GN    GN      GN    GN
Avg clouds    B1 B1 B2   B1 SC B1 B2   B2 SC SC SC   SC SC SC SC   B1 B1 B1
PoP 12hr         20      20    10      30    20      20    10      10    20
Snow                                          S  S    S                S  S
Snowshwrs      S  S  S    S        C

$$
MTZ051-221100-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
842 PM MST Wed Feb 21 2018

Date          Wed 02/21/18      Thu 02/22/18            Fri 02/23/18         Sat
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          16          -7          23           7
Temp                   -3 -3 -5 -2 11 15  7 -3 -5 -6 -7 -1 16 23 19  9  8  9 14
Dewpt                  -8 -7-10 -5  4  6  2 -6 -8 -8-11 -6  6 10  9  4  0  3  5
RH                     78 82 78 87 73 67 79 86 86 91 82 79 64 57 64 80 69 76 67
Wind dir                S  S  S SW  N NW  N SW SW  S SW  S SW  W  W SW SW SW  W
Wind spd                6  6  5  3  4  5  6  5  5  8  6  8  9 10  9 10 11 11 17
Clouds                 CL CL FW FW FW SC B1 B2 B1 B1 SC FW FW CL FW FW SC SC SC
PoP 12hr                      0           5           5           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -17-17-17-10       -5-16-18-22-21-16          -5 -8 -6 -2
Min chill             -18   -18   -17    -5   -18   -22   -20          -8    -8


Date           02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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       7    30      13    29       6    23       2    19
Temp          22 24 10    9 25 29 16   17 26 26  7    9 21 21  4    4 16 18
Dewpt         12 16  6    2 13 17 10   13 16 22  5    6 13 15  1   -1  7 13
PWind dir         W       W    SW      SW     W       W     W      SW     W
Wind char        BZ      GN    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC B1 B1   B1 B1 SC B1   B2 B2 B2 SC   SC SC SC B1   B1 B1 B1
PoP 12hr         20      20    10      40    20      20    20      20    20
Snow                                       S  S  S    S  S     S    S  S  S
Snowshwrs         S  S    S        S    C

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




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