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

MTZ012-221100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
626 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          22          30          15
Temp                33 31 30 29 29 31 34 32 27 25 25 22 23 27 29 27 21 19 18 15
Dewpt               30 28 26 26 26 28 27 21 20 19 20 18 18 19 16 16 16 15 14 12
RH                  89 88 85 88 88 88 75 63 74 78 81 84 81 71 58 63 81 84 84 88
Wind dir            SW SW  W  W  W  W  W NW  W  W  W NW NW  N  N  N  N  E  E SW
Wind spd            10 10  6  6  8 10  8 10  9  8  9 10 10 12 12  9  9  4  4  5
Clouds              OV B2 B2 OV OV OV OV B2 B2 B2 B2 OV OV OV OV OV B2 B2 B2 B2
PoP 12hr                     70          70          40          50          30
QPF 12hr                   0.13        0.09        0.07        0.10        0.02
Snow 12hr                     1           1           1
Rain shwrs           C
Snow                                                              C  C  C  C  C
Snowshwrs               L  L  L  L  L  C  C  C  C  C  C  C  C  C
Tstms
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
626 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                      24          34          18          26          10
Temp                29 29 27 26 24 30 34 29 23 22 19 18 18 21 26 22 16 13 14 10
Dewpt               27 28 27 26 23 26 26 23 19 19 16 16 16 17 17 14 12 11 11  8
RH                  92 96100100 96 85 72 78 84 88 88 92 92 84 68 71 84 91 88 91
Wind dir             N  N NW NW NW  W NW NW NW NW NW  N  N  N  N NE NE  S  S  W
Wind spd             4  5  5  4  5 12 13 14 12 13 13 12 12 13 13  9  9  5  5  8
Clouds              OV OV OV OV OV B2 B2 B2 B2 B1 B1 OV OV OV OV OV B2 B2 B2 B2
PoP 12hr                     70          70          30          40          30
QPF 12hr                   0.13        0.05        0.08        0.10        0.03
Snow 12hr                     2           1           2
Snow                                                              C  C  C  C  C
Snowshwrs            L  L  L  L  C  C  S  S  S  C  C  C  C  C  C
Wind chill                                                                   -2
Min chill                                                                    -2
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          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
626 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          36          17          27          12
Temp                35 33 32 32 31 33 34 33 28 24 20 18 17 20 26 26 21 20 15 13
Dewpt               27 23 21 21 21 23 24 21 19 19 16 13 13 12 12 15 14 16 12 10
RH                  72 66 63 63 66 66 66 61 68 81 84 80 84 71 55 62 74 84 88 87
Wind dir            SW SW  W  W  W  W  W NW  W NW  W NW NW NW NW  N  N NW NW  W
Wind spd             9 11  9  9  6 10  9  8  8  6  6  5  5  8  8  6  6  4  4  3
Clouds              OV OV OV OV OV B2 B2 B2 B2 B2 B2 OV OV OV OV OV B2 B2 B1 B2
PoP 12hr                     20          40          30          40          30
QPF 12hr                   0.03        0.05        0.06        0.09        0.03
Snow 12hr                     T           T           1
Rain shwrs           S
Snow                                                              C  C  C  C  C
Snowshwrs               S  S  S  C  C  C  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
626 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                      30          38          13          27          10
Temp                32 31 30 30 30 34 36 32 25 20 17 14 14 20 25 27 19 15 13 11
Dewpt               22 23 22 20 21 22 21 19 18 16 13 11 11 13 13 16 12 11  9  8
RH                  66 72 72 66 69 61 54 58 74 84 84 88 88 74 60 63 74 84 84 87
Wind dir            SW SW SW SW SW  W NW NW NW NW NW NW NW NW NW  N  N  N  N NW
Wind spd            13 12 11  9  6  8  6  6  6  5  5  5  5  6  6  4  4  4  4  4
Clouds              B1 B2 B2 OV OV OV B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV
PoP 12hr                     30          40          40          40          30
QPF 12hr                   0.02        0.04        0.06        0.07        0.03
Snow 12hr                     T           T           1
Snow                                                              C  C  C  C  C
Snowshwrs               S  S  C  C  C  C  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
626 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          28           8          23           2
Temp                28 26 22 20 19 22 27 23 17 13 11 10  8 18 23 21 13  5  4  2
Dewpt               24 22 18 16 15 18 19 17 15 11  9  8  6 12 12 13 11  3  3  1
RH                  85 85 84 84 84 84 71 77 92 91 91 91 91 77 62 71 91 91 95 95
Wind dir            SW SW SW SW SW SW SW  W  N NE  N  N  N  N  N  N  N  N  N  N
Wind spd            14 11  8  8  8 10  9  9  6  6  6  5  5  9  9  6  6  4  4  2
Clouds              B2 B1 B2 OV B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV
PoP 12hr                     50          50          30          40          40
QPF 12hr                   0.05        0.05        0.03        0.09        0.04
Snow 12hr                     1           1           1
Snow                                                              C  C  C  C  C
Snowshwrs            C  C  C  C  C  C  C  C  C  C  C  C  C  C  C
Tstms
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
626 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                      26          34          15          24          11
Temp                31 30 28 27 26 30 33 30 25 21 17 16 16 23 23 23 21 18 15 12
Dewpt               21 20 19 17 17 20 18 17 17 15 11 11 11 11  9 12 15 13 11  8
RH                  66 66 68 65 68 66 53 58 71 77 77 80 80 59 54 62 77 80 84 84
Wind dir            SW SW SW SW SW SW SW  N  N  N  N  N  N  N  N  N  N  N  N NW
Wind spd            19 14 11 14 13 10  5  8  9  9  9 10 10 10 10  9  9  9  9  8
Clouds              SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2
PoP 12hr                     20          40          20          30          40
QPF 12hr                   0.01        0.04        0.03        0.08        0.04
Snow 12hr                     T           T           1
Snow                                                              C  C  C  C  C
Snowshwrs                  S  S  C  C  C  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
626 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          37          24          32          19
Temp                32 31 30 28 28 33 37 33 28 27 24 24 25 29 32 29 23 21 21 19
Dewpt               31 30 29 28 28 29 29 26 24 24 21 22 22 23 23 22 19 19 19 18
RH                  96 96 96100100 85 72 75 85 88 88 92 88 78 69 75 84 92 92 96
Wind dir            NE NE NE NE NE  E  N  N NE NE NE  E  E NE NE NE NE NE NE  E
Wind spd             4  3  4  4  4  5  4  6  5  5  6  8  8  9  9  9  9  5  5  5
Clouds              OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2
PoP 12hr                     60          50          30          30          20
QPF 12hr                   0.10        0.09        0.11        0.04        0.01
Snow 12hr                     1           1           2
Rain shwrs           L
Snow                                                              S  S  S  S  S
Snowshwrs               C  C  C  C  C  C  C  C  S  S  C  C  C  C
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
626 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          35          20          28          14
Temp                35 33 30 29 29 31 34 32 27 25 23 21 21 26 28 25 20 18 15 14
Dewpt               31 29 27 25 24 25 24 23 22 20 19 17 14 17 16 17 15 13 11 11
RH                  85 85 88 85 81 78 66 69 81 81 84 84 74 68 60 71 81 80 84 88
Wind dir             W  W  W  W NW NW NW NW NW NW NW  N  N  N  N  N  N  E  E NE
Wind spd            11 10 12 13  9 10 11 10 10  8  6  8  8 10 10  9  9  5  5  5
Clouds              B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 OV OV B2 B2 OV B2 B2
PoP 12hr                     60          60          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  L  L  L  C  C  C  C  C  C  C  C  C  C
Tstms
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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