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Point Forecast Matrices
National Weather Service Great Falls MT
233 PM MST Mon Feb 20 2017

MTZ012-211100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
233 PM MST Mon Feb 20 2017

Date          Mon 02/20/17      Tue 02/21/17            Wed 02/22/17         Thu
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                      35          48          31          41          21
Temp             49 43 40 37 36 36 41 43 44 38 35 34 32 32 38 40 38 30 26 24 21
Dewpt            31 31 28 27 25 26 28 31 31 32 30 29 28 29 27 22 22 21 20 19 17
RH               50 62 62 67 64 67 59 62 60 79 82 82 85 88 64 48 52 69 78 81 84
Wind dir         SW SW SW SW SW SW  W SW  W  W  W  W  W  W  W  W  W  W  W  W NW
Wind spd         18 17 18 16 13  6  6  6  9  9  9  9 10 10 13 13 12 12  9  9  9
Clouds           B1 SC FW FW B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV B2 B2 B2 B2 B2
PoP 12hr                     40          60          40          60          30
QPF 12hr                   0.01        0.09        0.03        0.10        0.03
Snow 12hr                 00-00       00-00           T
Rain shwrs        C  C        C  C  L  L  C  C
Snowshwrs                                       C  C  L  L  C  C  C  C  C  C  C


Date           02/23/17  Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
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    25       7    22       7    24       8    26
Temp          27 26 17   11 22 24 12    7 18 22 11    8 20 23 10    9 19 26
Dewpt         17 15 13    9 13 14  9    4  8  9  6    4  8 11  6    5  9 12
PWind dir        NW      NW    SW       N     W       W    SW       N     W
Wind char        GN      GN    LT      LT    LT      LT    GN      GN    GN
Avg clouds    B2 OV B2   B2 B2 B2 B2   B2 B2 B2 B2   B1 B1 B1 B1   B2 B2 B2
PoP 12hr         40      40    30      30    30      20    20      20    30
Snowshwrs      C  C  C    S  S  C  S    C  C  S       S  S          S  C  C

$$
MTZ010-211100-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
233 PM MST Mon Feb 20 2017

Date          Mon 02/20/17      Tue 02/21/17            Wed 02/22/17         Thu
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          39          26          35          18
Temp             40 36 36 33 30 29 34 38 36 31 28 27 26 27 31 34 30 25 23 21 18
Dewpt            32 30 28 25 23 23 25 28 29 27 26 26 25 25 26 24 22 20 19 17 16
RH               73 79 72 72 75 78 69 67 75 85 92 96 96 92 81 66 72 81 84 84 92
Wind dir         SW SW SW  W  W NW NW SW SW  W  W NW NW NW NW NW  W  W NW NW NW
Wind spd         11 11 20 20 16  9  5  9  9  8 10  9 11 11 12 12 13 13 11 11 13
Clouds           B2 B1 SC CL FW B1 B2 B1 OV OV OV OV OV OV OV OV B2 B2 B2 B2 OV
PoP 12hr                     20          20          30          60          40
QPF 12hr                   0.01        0.01        0.06        0.13        0.03
Snow 12hr                 00-00           T           1
Rain shwrs        S  S
Snowshwrs                           S  S  C  C  C  C  L  L  C  C  C  C  C  C  C


Date           02/23/17  Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
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       6    20       2    18       2    21       2    19
Temp          22 22 11    6 17 19  5    3 13 18  5    3 19 19  6    2 13 19
Dewpt         16 15  9    5 11 12  3    1  8 10  2    0 11  9  3    0  8 10
PWind dir        NW       N    NE      NE     W      SW    NW       N     S
Wind char        GN      GN    LT      GN    GN      GN    GN      GN    GN
Avg clouds    OV OV B2   B2 B2 B2 B2   B2 B2 B1 B2   B1 SC B1 B2   B2 B2 B2
PoP 12hr         50      40    30      30    30      20    10      20    30
Snowshwrs      C  C  C    C  C  C  C    C  C  S  S    S             S  C  C

$$
MTZ014-211100-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
233 PM MST Mon Feb 20 2017

Date          Mon 02/20/17      Tue 02/21/17            Wed 02/22/17         Thu
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                      32          43          26          36          16
Temp             43 39 36 33 34 33 39 43 41 37 33 30 29 27 29 33 35 26 23 18 17
Dewpt            33 29 26 25 27 28 31 33 26 26 25 24 22 21 18 18 21 18 17 13 12
RH               67 67 67 72 75 82 73 67 55 64 72 78 75 78 63 53 56 71 77 80 80
Wind dir         SW SW SW SW SW  W  W  W SW SW SW  W SW SW  W  W  W  W  W  W  W
Wind spd          6  8  8  5  4  5  6  8  6  6  8  6  6  6 11 11  8  8  4  4  4
Clouds           B2 B1 SC B1 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV B2 B2 B1 B1 B2
PoP 12hr                     30          40          30          20          20
QPF 12hr                   0.02        0.05        0.02        0.02           0
Snow 12hr                 00-00           T           T
Rain shwrs        C  C  S  S  C  C  C  C  S  S
Snowshwrs                                 S  S  C  C  S  S  S  S        S  S  C
Tstms                                  S  S  S


Date           02/23/17  Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
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          27       9    26       7    25       8    27      12    28
Temp          22 26 17    9 19 26 16    7 17 25 15    8 21 27 16   12 20 28
Dewpt         12 14 12    5  8 12 10    2  6  9  9    4  8 12 11    7 10 13
PWind dir        NW       N    SW       N     W      SW     W       N    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B2 B2   B2 B2 B2 B2   B2 B1 B1 B2   B1 SC B1 B2   B2 B2 B2
PoP 12hr         30      30    20      20    20      10    10      20    20
Snowshwrs      C  C  C    S  S  S  S    S  S  S                     S  S  S

$$
MTZ055-211100-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
233 PM MST Mon Feb 20 2017

Date          Mon 02/20/17      Tue 02/21/17            Wed 02/22/17         Thu
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                      34          47          25          36          13
Temp             43 39 38 36 35 37 44 46 43 35 31 31 28 26 32 34 35 23 19 15 13
Dewpt            31 30 30 30 29 31 32 31 27 26 24 24 22 21 23 22 22 18 14 12 10
RH               62 70 73 79 78 79 62 55 53 69 75 75 78 81 69 61 59 81 80 88 87
Wind dir         SW SW SW  S SW  W  W SW SW SW SW SW SW SW  W  W NW NW NW NW NW
Wind spd         12 10  8  6  6 10 20 20 11  8  8  9  9  9 10 10  5  5  4  4  5
Clouds           B2 B2 B2 OV OV OV SC SC B1 B1 B2 B2 OV OV OV OV B2 B2 B1 B1 B2
PoP 12hr                     30          30          30          30          30
QPF 12hr                   0.03        0.02        0.02        0.06        0.03
Snow 12hr                 00-00       00-00           T
Rain shwrs        C  C  C  C  C  C  C  S  C  C
Snowshwrs                                 C  C  C  C  C  C  C  C  C  C  C  C  C
Tstms                                  S  S


Date           02/23/17  Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
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          27       8    24       5    24       7    27      11    29
Temp          22 27 12    8 16 24 11    5 16 24 12    8 21 27 16   11 22 29
Dewpt         14 14  9    5  9 12  6    2  8 10  7    4 12 13 11    7 13 14
PWind dir        NW       N    NW       W     S      SW     W       E    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B2 B2   OV OV B2 B2   B2 B2 B1 B2   B1 B1 B1 B2   B1 B1 B2
PoP 12hr         40      20    20      20    20      20    10      20    20
Snowshwrs      C  C  S    S  S  S  S    S  S  S       S             S  S  S

$$
MTZ055-211100-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
233 PM MST Mon Feb 20 2017

Date          Mon 02/20/17      Tue 02/21/17            Wed 02/22/17         Thu
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                      32          36          18          28           5
Temp             34 34 34 33 33 33 34 33 33 31 27 23 21 18 24 28 25 16  9  6  5
Dewpt            32 32 31 31 30 30 29 29 24 28 24 22 19 17 19 18 19 15  7  5  4
RH               92 92 89 92 89 89 82 85 69 88 88 96 92 96 81 66 78 96 91 96 95
Wind dir         SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  W  W  N  N  N
Wind spd         18 17 13 11 16 19 21 17 17 12 13 12 12 12 10 10  6  6  3  3  3
Clouds           OV OV OV OV OV B2 B2 OV OV OV B2 B2 OV OV OV OV B2 B2 B2 B2 OV
PoP 12hr                     90          80          60          60          40
QPF 12hr                   0.33        0.17        0.11        0.10        0.04
Snow 12hr                     1           1           2
Rain shwrs        D  D
Snow                    D  D  D  D
Snowshwrs         D  D              D  L  L  L  L  L  L  L  L  L  C  C  C  C  C
Wind chill                                                                -1 -2
Min chill                                                                    -2
Winter Weath      Y  Y  Y  Y  Y


Date           02/23/17  Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
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       2    20      -2    20      -1    23       6    25
Temp          18 22  7    3 15 19  4   -1 15 19  3    1 17 23 12    6 21 25
Dewpt         11 12  5    1  7 12  1   -3  7  8  1   -1  8 15  9    5 15 16
PWind dir         N       N    NW      SW     S      SW    SW       S     S
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV OV OV   OV OV OV B2   B2 B2 B2 B2   B1 B2 B2 B2   B2 B2 B2
PoP 12hr         40      30    30      30    20      20    20      20    20
Snowshwrs      C  C  C    C  C  C  S    C  S  S       S  S     S    S  S  S

$$
MTZ008-211100-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
233 PM MST Mon Feb 20 2017

Date          Mon 02/20/17      Tue 02/21/17            Wed 02/22/17         Thu
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                      33          42          26          34          14
Temp             42 37 36 35 35 36 41 41 38 32 30 29 26 27 31 32 33 25 20 17 14
Dewpt            30 29 28 28 28 27 27 28 22 23 21 21 18 19 17 15 18 17 13 12  9
RH               62 72 72 75 75 69 57 59 52 69 69 72 71 71 56 49 53 71 74 80 80
Wind dir          S  S  S  S  S SW SW SW SW SW SW SW SW SW SW SW  W  W  N  N  N
Wind spd         20 16 10  8  9 18 24 21 19 14 14 13 12 12 10 10  6  6  8  8  6
Clouds           B2 OV B2 OV B2 SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B2
PoP 12hr                     40          30          20          20          20
QPF 12hr                   0.04        0.01        0.02        0.02           0
Snow 12hr                 00-00       00-00           T
Rain shwrs        C  C  C  C  C  C  C  S
Snowshwrs                                 S  S  S  S  S  S  S  S  S  S  S  S  S
Tstms                                  S  S


Date           02/23/17  Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
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      10    24       7    24       9    28      13    30
Temp          21 25 17   10 19 24 12    7 17 24 12   10 20 28 18   13 25 30
Dewpt          9 11 10    5  7  8  6    1  4  8  5    4  6 12 11    7 11 14
PWind dir         N       N    NW       S     S       S     S      SE     S
Wind char        LT      LT    LT      LT    LT      GN    LT      LT    GN
Avg clouds    B2 B2 B2   OV B2 B2 B1   B1 SC B1 B1   B1 SC B1 B1   B1 B1 B1
PoP 12hr         30      30    30      10    20      10    10      20    10
Snowshwrs      S  C  C    S  C  S          S  S                     S

$$
MTZ011-211100-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
233 PM MST Mon Feb 20 2017

Date          Mon 02/20/17      Tue 02/21/17            Wed 02/22/17         Thu
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                      34          46          29          40          24
Temp             49 43 41 38 35 35 41 45 42 35 32 30 30 29 35 39 37 32 28 28 25
Dewpt            33 35 33 31 28 27 28 29 30 30 30 28 29 27 28 28 29 27 25 25 23
RH               54 73 73 76 75 72 59 53 62 82 92 92 96 92 75 64 72 81 88 88 92
Wind dir         SW SW SW SW SW SW  W  W  W NW NW NW NW NW NW NW  N  N  E  E  E
Wind spd          9 11 13 14 12 10 11 10  8  5  5  6  5  5  8  8  6  6  5  5  6
Clouds           OV B1 B1 SC SC B1 B1 B1 B2 B2 OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                     30          20          50          50          50
QPF 12hr                   0.02        0.01        0.08        0.06        0.05
Snow 12hr                 00-00       00-00           1
Rain shwrs        C  S  S  S        S  S  C  C
Snowshwrs                                       C  C  C  C  C  C  C  C  C  C  C


Date           02/23/17  Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
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          32      16    27      10    23       8    24      10    23
Temp          27 31 21   16 21 27 13   10 15 23 11    9 17 24 13   10 18 23
Dewpt         21 24 18   15 16 20 10    8 10 15  8    7 12 15  9    7 11 14
PWind dir        NE      NW     W       N     N       E     W      NE     N
Wind char        GN      GN    GN      LT    LT      LT    LT      LT    LT
Avg clouds    OV OV OV   OV OV B2 B2   B2 B2 B2 B1   B2 B1 B1 B1   B2 B2 B2
PoP 12hr         40      30    30      30    30      20    20      10    30
Snowshwrs      C  C  C    C  S  C  C    C  C  S  S    S  S             S  C

$$
MTZ051-211100-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
233 PM MST Mon Feb 20 2017

Date          Mon 02/20/17      Tue 02/21/17            Wed 02/22/17         Thu
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                      37          50          30          39          21
Temp             48 44 42 39 38 38 42 45 45 37 33 33 32 31 37 38 37 30 26 23 23
Dewpt            31 32 30 28 28 29 30 31 32 31 27 28 27 27 25 25 25 24 20 19 19
RH               51 62 62 64 67 70 62 58 60 79 78 82 81 85 61 59 61 78 78 84 84
Wind dir         SW SW SW SW  S SW  W  W  W SW  W  W  W  W NW NW NW NW  W  W NW
Wind spd         17 18 14 12  9  6  8 12 11 10 10  8 10 10 12 12 10 10  6  6  6
Clouds           B1 B2 B1 B1 B2 B2 OV B2 B1 B1 B2 B2 OV OV OV OV B2 OV OV OV OV
PoP 12hr                     20          60          30          50          40
QPF 12hr                   0.01        0.11        0.02        0.12        0.05
Snow 12hr                 00-00       00-00           T
Rain shwrs        S  S        L  L  C  C  C  C
Snowshwrs                                       C  C  C  C  C  C  C  C  C  C  C
Tstms                                     S  S


Date           02/23/17  Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
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      11    25       7    22       7    25       8    25
Temp          28 25 16   11 23 23 15    7 18 22 11    8 22 24 14    8 21 25
Dewpt         17 17 12    8 13 15 12    4  9 11  5    4  8 12  8    5  9 13
PWind dir        NW      NW    NW      NW     W      SW     W       E     W
Wind char        GN      LT    LT      LT    LT      GN    LT      LT    LT
Avg clouds    B2 B2 OV   OV B2 B2 OV   OV B2 B2 B2   B2 B1 SC B2   B2 B1 B2
PoP 12hr         40      30    20      30    30      20    20      20    30
Snowshwrs      C  C  C    S  S  S  C    S  C  C  S    S  S          S  C  C

$$
weather.gov/greatfalls




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