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Point Forecast Matrices
National Weather Service Great Falls MT
904 PM MST Tue Feb 21 2017

MTZ012-221100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
904 PM MST Tue Feb 21 2017

Date          Tue 02/21/17      Wed 02/22/17            Thu 02/23/17         Fri
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                      29          37          21          30          15
Temp                   35 33 31 31 34 36 34 28 25 25 22 23 27 29 27 21 19 18 15
Dewpt                  30 29 29 27 27 25 25 22 19 20 18 18 19 16 16 16 15 14 12
RH                     82 85 92 85 75 64 69 78 78 81 84 81 71 58 63 81 84 84 88
Wind dir                W  W  W  W  W  W  W  W  W  W NW NW  N  N  N  N  E  E SW
Wind spd                9  8  6  5  6  8  8  6  8  9 10 10 12 12  9  9  4  4  5
Clouds                 OV OV OV OV OV OV OV B2 B2 B2 OV OV OV OV OV B2 B2 B2 B2
PoP 12hr                     70          70          40          50          30
QPF 12hr                   0.10        0.09        0.07        0.10        0.02
Snow 12hr                     1           1           1
Rain shwrs              C
Snow                                                              C  C  C  C  C
Snowshwrs               C  L  L  C  C  C  C  C  C  C  C  C  C  C
Tstms
Obvis                   F  F  F PF PF
Winter Weath               Y  Y  Y  Y  Y  Y  Y  Y


Date           02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17  Tue 02/28/17
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    24       9    27       8    20       7    29
Temp          25 25 13    7 19 24 12   10 22 27 13    8 13 20  8    9 21 29
Dewpt         14 13  9    4  8  7  5    4  8 11  8    5  6 10  5    4  7 13
PWind dir        SW       N     W       W    SW       E     N       N    SW
Wind char        LT      LT    LT      GN    GN      LT    GN      LT    GN
Avg clouds    B2 B2 B2   B2 B2 B1 B1   B1 SC SC B1   B2 OV OV OV   B2 B1 B1
PoP 12hr         30      30    30      20    20      30    40      30    20
Snow           C  C  S    C  C  S  S    S     S  S    C  C  C  C    C  S  S

$$
MTZ010-221100-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
904 PM MST Tue Feb 21 2017

Date          Tue 02/21/17      Wed 02/22/17            Thu 02/23/17         Fri
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                      23          33          17          26          10
Temp                   30 27 25 24 30 32 30 23 22 19 18 18 21 26 22 16 13 14 10
Dewpt                  29 27 24 23 25 25 22 20 19 16 16 16 17 17 14 12 11 11  8
RH                     96100 96 96 81 75 72 88 88 88 92 92 84 68 71 84 91 88 91
Wind dir               NW NW NW NW NW NW NW NW NW NW  N  N  N  N NE NE  S  S  W
Wind spd                5  5  5  5  9 11 10 10 13 13 12 12 13 13  9  9  5  5  8
Clouds                 OV OV OV OV B2 B2 B2 B2 B1 B1 OV OV OV OV OV B2 B2 B2 B2
PoP 12hr                     80          50          30          40          30
QPF 12hr                   0.10        0.04        0.08        0.10        0.03
Snow 12hr                     1           1           2
Snow                                                              C  C  C  C  C
Snowshwrs               O  L  C  C  C  S  S  S  C  C  C  C  C  C
Obvis                   F  F  F PF PF
Wind chill                                                                   -2
Min chill                                                                    -2
Winter Weath            Y  Y  Y  Y  Y  Y  Y


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

$$
MTZ014-221100-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
904 PM MST Tue Feb 21 2017

Date          Tue 02/21/17      Wed 02/22/17            Thu 02/23/17         Fri
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                      31          38          16          27          12
Temp                   35 34 33 32 36 38 35 28 24 20 18 17 20 26 26 21 20 15 13
Dewpt                  25 24 24 24 26 26 24 20 19 16 13 13 12 12 15 14 16 12 10
RH                     66 66 69 72 67 62 64 71 81 84 80 84 71 55 62 74 84 88 87
Wind dir                W  W  W  W  W  W NW  W NW  W NW NW NW NW  N  N NW NW  W
Wind spd                9  9  9  5  8  8  8  8  6  6  5  5  8  8  6  6  4  4  3
Clouds                 OV OV OV OV OV OV B2 B2 B2 B2 OV OV OV OV OV B2 B2 B1 B2
PoP 12hr                     30          30          30          40          30
QPF 12hr                   0.03        0.04        0.06        0.09        0.03
Snow 12hr                     T           T           1
Rain shwrs              S  C           S
Snow                                                              C  C  C  C  C
Snowshwrs               S  C  C  C  C  S  C  C  C  C  C  C  C  C


Date           02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17  Tue 02/28/17
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       6    25       7    27      10    23       9    29
Temp          19 25 14    6 16 25 14    7 16 27 14   10 13 23 12   10 19 29
Dewpt         10 12  9    1  6  9  8    3  5 10  9    5  5 11  7    5  8 13
PWind dir         W      NW     W      SW     S      SW     N       N    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B2 B2   B2 B1 B1 B1   SC SC SC B1   B2 OV OV B2   B2 B1 B1
PoP 12hr         30      30    20      10    10      20    30      20    20
Snow           C  C  C    S  S  S                     S  C  C  S    S     S

$$
MTZ055-221100-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
904 PM MST Tue Feb 21 2017

Date          Tue 02/21/17      Wed 02/22/17            Thu 02/23/17         Fri
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                      29          37          12          27          10
Temp                   33 32 30 30 35 36 34 26 20 17 14 14 20 25 27 19 15 13 11
Dewpt                  23 23 22 22 24 23 23 20 16 13 11 11 13 13 16 12 11  9  8
RH                     66 69 72 72 64 59 64 78 84 84 88 88 74 60 63 74 84 84 87
Wind dir               SW SW SW SW  W  W NW NW NW NW NW NW NW NW  N  N  N  N NW
Wind spd               11  9  8  5  5  5  5  6  5  5  5  5  6  6  4  4  4  4  4
Clouds                 B1 B2 OV OV OV B2 OV B2 B2 B2 B2 B2 OV OV OV OV OV OV OV
PoP 12hr                     30          30          40          40          30
QPF 12hr                   0.02        0.03        0.06        0.07        0.03
Snow 12hr                     T           T           1
Snow                                                              C  C  C  C  C
Snowshwrs               S  S  C  C  C  S  C  C  C  C  C  C  C  C


Date           02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17  Tue 02/28/17
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       4    24       6    28      12    30      11    30
Temp          18 25  8    5 16 24 11    6 18 28 16   13 22 30 16   11 21 30
Dewpt          9 12  4    1  8  9  5    2  9 13 10    9 14 17 10    7 11 15
PWind dir        NW      SW    SW      SW    SW       S     N      NW     W
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B2 B2   B2 B2 B2 B1   B1 SC SC B1   OV OV B1 B2   B2 B2 B2
PoP 12hr         30      30    20      20    10      20    30      20    20
Snow           C  C  C    S  S  S  S    S             S  C  C  S    S  S  S

$$
MTZ055-221100-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
904 PM MST Tue Feb 21 2017

Date          Tue 02/21/17      Wed 02/22/17            Thu 02/23/17         Fri
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          27           7          23           2
Temp                   25 23 21 20 25 26 23 16 13 11 10  8 18 23 21 13  5  4  2
Dewpt                  21 18 17 16 18 19 19 14 11  9  8  6 12 12 13 11  3  3  1
RH                     84 81 84 84 74 74 84 92 91 91 91 91 77 62 71 91 91 95 95
Wind dir               SW SW SW SW SW SW SW NW NE  N  N  N  N  N  N  N  N  N  N
Wind spd               13  9 12 10 12 11  4  4  6  6  5  5  9  9  6  6  4  4  2
Clouds                 B1 B2 B2 OV OV B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV
PoP 12hr                     60          50          30          40          40
QPF 12hr                   0.03        0.04        0.03        0.09        0.04
Snow 12hr                     1           1           1
Snow                                                              C  C  C  C  C
Snowshwrs               L  C  C  C  C  S  C  C  C  C  C  C  C  C
Tstms
Obvis                           PF PF
Wind chill                                              -2             -4 -5
Min chill                                            -1    -2          -5    -8


Date           02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17  Tue 02/28/17
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          20     -10    19       0    24      12    29       8    26
Temp          14 17 -4   -8 13 18  5    0 16 24 14   16 26 28 15    8 19 26
Dewpt          8 10 -6   -9  6  9  3   -2 10 13 12   14 19 18 13    7 12 15
PWind dir        NW      SW    SW      SW    SW       S     S       W    SW
Wind char        LT      LT    LT      GN    LT      LT    GN      LT    LT
Avg clouds    OV B2 B2   B2 B2 B2 B2   B1 B1 B1 B2   OV OV B2 B2   B2 B2 B2
PoP 12hr         40      40    30      20    10      50    60      40    20
Snow           C  C  C    C  S  C  S    S        C    C  L  L  C    C  S  S

$$
MTZ008-221100-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
904 PM MST Tue Feb 21 2017

Date          Tue 02/21/17      Wed 02/22/17            Thu 02/23/17         Fri
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          35          14          24          11
Temp                   28 27 26 25 31 34 30 24 21 17 16 16 23 23 23 21 18 15 12
Dewpt                  20 19 18 18 21 19 19 17 15 11 11 11 11  9 12 15 13 11  8
RH                     71 71 71 74 66 54 63 74 77 77 80 80 59 54 62 77 80 84 84
Wind dir               SW SW SW SW SW SW NW  N  N  N  N  N  N  N  N  N  N  N NW
Wind spd               14 11 12 10  9  6  6  9  9  9 10 10 10 10  9  9  9  9  8
Clouds                 B2 B1 B2 B2 OV B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                     20          20          20          30          40
QPF 12hr                   0.01        0.02        0.03        0.08        0.04
Snow 12hr                     T           T           1
Snow                                                              C  C  C  C  C
Snowshwrs                     S  S  S  S  S  S  S  S  C  C  C  C


Date           02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17  Tue 02/28/17
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       6    23       8    27      14    32      15    30
Temp          18 23 10    6 18 23 14    8 17 27 17   15 26 32 18   15 21 30
Dewpt          7  9  4    0  5  7  7    1  4 10 10   10 13 18 10    9  8 14
PWind dir        NW      SW     S      SW     S      SE     E      NW    SW
Wind char        LT      LT    LT      GN    GN      GN    LT      GN    GN
Avg clouds    B2 B1 B1   B1 B1 B1 B1   SC SC SC B2   OV OV B2 B2   B2 B1 B1
PoP 12hr         30      30    20      20    10      20    30      20    20
Snow           C  C  C    S  S  S       S             S  C  C  S          S

$$
MTZ011-221100-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
904 PM MST Tue Feb 21 2017

Date          Tue 02/21/17      Wed 02/22/17            Thu 02/23/17         Fri
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                      28          36          23          32          19
Temp                   32 31 29 29 33 35 35 29 27 24 24 25 29 32 29 23 21 21 19
Dewpt                  31 30 28 28 30 30 30 26 24 21 22 22 23 23 22 19 19 19 18
RH                     96 96 96 96 89 82 82 88 88 88 92 88 78 69 75 84 92 92 96
Wind dir               NE NE NE NE  E NE NE NE NE NE  E  E NE NE NE NE NE NE  E
Wind spd                5  4  4  4  5  4  5  5  5  6  8  8  9  9  9  9  5  5  5
Clouds                 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2
PoP 12hr                     70          50          40          30          20
QPF 12hr                   0.05        0.08        0.11        0.04        0.01
Snow 12hr                     T           1           2
Rain shwrs
Snow                                                              S  S  S  S  S
Snowshwrs               L  L  C  C  C  C  C  C  S  S  C  C  C  C
Obvis                   F  F  F PF PF PF
Winter Weath               Y  Y  Y  Y  Y  Y  Y  Y


Date           02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17  Tue 02/28/17
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      11    22       8    25       9    22       9    27
Temp          27 28 18   11 17 22 10    9 20 25 14    9 16 22 10   11 20 27
Dewpt         20 19 15   10 10 15  7    6 11 16 10    6  8 12  6    7 12 15
PWind dir        SE       N    NW       S     W       N    NE      NE    SW
Wind char        LT      LT    LT      LT    LT      LT    GN      LT    LT
Avg clouds    B2 OV B2   OV B2 B2 B2   B1 SC B1 B1   B2 OV B2 B2   B2 B2 B1
PoP 12hr         20      30    30      20    10      20    30      30    20
Snow           S  S  C    C  C  C  S             S    S  C  C  C    C  S

$$
MTZ051-221100-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
904 PM MST Tue Feb 21 2017

Date          Tue 02/21/17      Wed 02/22/17            Thu 02/23/17         Fri
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                      29          33          19          28          14
Temp                   35 33 32 30 32 32 31 27 25 23 21 21 26 28 25 20 18 15 14
Dewpt                  29 27 28 28 28 28 27 23 20 19 17 14 17 16 17 15 13 11 11
RH                     78 78 85 92 85 85 85 85 81 84 84 74 68 60 71 81 80 84 88
Wind dir                W  W NW NW NW NW NW NW NW NW  N  N  N  N  N  N  E  E NE
Wind spd                9 11 12  8  6  8  6  9  8  6  8  8 10 10  9  9  5  5  5
Clouds                 B2 OV OV OV OV OV OV OV B2 B2 B2 B2 OV OV B2 B2 OV B2 B2
PoP 12hr                     60          70          40          30          30
QPF 12hr                   0.06        0.14        0.09        0.05        0.03
Snow 12hr                     T           2           2
Rain shwrs              C
Snow                                                              C  C  C  C  C
Snowshwrs               C  C  L  L  L  C  C  C  C  C  C  C  C  C
Tstms
Obvis                     PF PF PF PF PF
Winter Weath               Y  Y  Y  Y  Y  Y  Y  Y


Date           02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17  Tue 02/28/17
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       8    27       9    23       5    27
Temp          23 24 13    8 20 23 12    9 22 27 12   10 17 23  8    6 21 27
Dewpt         13 16  9    6 11 12  6    4  7 14  7    6  9 14  4    2  7 12
PWind dir         N      NW     W       W    SW       E    NE      SE     W
Wind char        LT      LT    LT      GN    GN      LT    LT      LT    GN
Avg clouds    B2 OV B2   B2 B2 B2 B2   B2 SC SC SC   B2 OV OV OV   B2 B2 B1
PoP 12hr         30      30    30      20    10      20    30      30    20
Snow           C  C  C    C  C  C  S    S        S    S  C  C  C    C  S  S

$$
weather.gov/greatfalls



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