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Point Forecast Matrices
National Weather Service Great Falls MT
225 PM MST Tue Feb 20 2018

MTZ012-211100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
225 PM MST Tue Feb 20 2018

Date          Tue 02/20/18      Wed 02/21/18            Thu 02/22/18         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                     -12          15         -10          10          -9
Temp              7  0 -3 -5 -9-11  5 15 11  1 -5 -6 -8 -9  3 10  3 -4 -9 -5 -7
Dewpt            -4 -7-10 -9-12-15 -3  3  0 -6-11-11-12-15 -6 -1 -5 -6-11 -7-11
RH               60 71 71 82 86 82 69 58 60 72 74 78 82 74 65 60 68 91 91 91 82
Wind dir         SW  S SW SW SW SW SW SW SW  S SW SW SW SW  W NW  N SW SW SW SW
Wind spd          5  6  5  6  4  6  6 11  8  9  8  8  5  4  4  5  5  5  5  8 10
Clouds           SC B2 B2 B2 B1 FW CL CL FW CL FW FW FW FW SC SC B1 B1 SC SC FW
PoP 12hr                      5           5           0           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       -3-13-15-19-20-26 -7    -1-14-20-21-21-20 -6    -8-16-22-20-25
Min chill        -3   -15   -20   -27    -2   -20   -21   -22    -8   -22   -25


Date           02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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          21      11    26       9    26      12    27       8    24
Temp          11 17 11   15 24 24 11   11 20 25 13   15 23 26 11    9 18 23
Dewpt         -1  3  1    9 13 11  5    7 10 12  7   11 12 14  4    5  9 13
PWind dir        SW      SW    SW      SW     W      SW    SW       W     W
Wind char        BZ      BZ    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    FW FW SC   B1 B2 B1 B2   B2 B2 B2 B1   B1 B2 B2 B2   B1 B1 B1
PoP 12hr          5      10    10      20    20      10    10      10    10
Snow                               S    S  S

$$
MTZ010-211100-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
225 PM MST Tue Feb 20 2018

Date          Tue 02/20/18      Wed 02/21/18            Thu 02/22/18         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                     -17          13         -11          12          -9
Temp              6 -1 -4 -7-13-16  3 13  7 -6-11 -9 -8 -8  5 12  6 -3 -9 -5 -6
Dewpt            -2 -4 -6 -9-16-20 -5  1 -2-11-15-13-12-11 -2  2 -3 -7-13-10-12
RH               69 87 91 91 86 81 68 58 66 78 82 82 82 86 72 63 66 82 82 78 74
Wind dir          N NE NW  W  W SW SW SW SW SW  W  W  W NW NW  N  N  W  W  W SW
Wind spd          5  4  3  6  5  6 10 12 10  8  5  8  9  9  8  9  5  4  4  9 11
Clouds           B2 OV B2 B2 FW CL CL CL FW FW FW SC SC B1 B1 B2 B1 B1 SC SC FW
PoP 12hr                      5           5           0           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       -4-11-12-21-27-32-12 -1 -8-21-25-25-25-25 -8    -4-13-20-21-25
Min chill        -5   -12   -27   -33    -8   -26   -26   -26    -5   -20   -25


Date           02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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          20      10    24       6    23       8    23       5    22
Temp          12 15 11   11 22 21  9    7 18 23 12    9 19 21  7    7 17 21
Dewpt          0  2  3    7 13 10  5    3 10 12  7    4 10 11  3    3  9 11
PWind dir        SW       W     W       W     W      SW     W       W     W
Wind char        BZ      WY    BZ      GN    GN      BZ    GN      GN    GN
Avg clouds    FW FW SC   B2 B2 B1 B2   B2 B1 B1 B1   B1 B1 B1 B1   B1 B1 B1
PoP 12hr          0      10    20      20    20      10    10      10    20
Snow                            S  S    S  S                              S

$$
MTZ014-211100-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
225 PM MST Tue Feb 20 2018

Date          Tue 02/20/18      Wed 02/21/18            Thu 02/22/18         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                      -9          17          -5          17          -3
Temp             10  2 -2 -4 -8 -7  8 17 13  5  0 -2 -4 -3 10 17 13  6  1  0 -2
Dewpt             1 -4 -7 -8-13-10 -2  4  2  1 -5 -6 -8 -6  0  5  3  3 -3 -3 -6
RH               66 75 79 82 78 86 63 56 61 83 79 82 82 86 63 58 63 87 83 87 82
Wind dir          E  S  W SW SW  S  S SW  S  W SW SW  S SW  N  N  N  N NW  W SW
Wind spd          2  1  2  1  3  2  2  3  2  1  2  2  2  2  2  4  4  1  1  2  2
Clouds           SC B2 B2 B2 B2 SC FW SC SC FW FW FW SC SC B1 B1 B1 B1 B1 B1 SC
PoP 12hr                      5           5           0          10          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                              S  S
Wind chill                  -17
Min chill              -2   -17   -18                -4    -5                -2


Date           02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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          22      10    27      12    29      14    30      12    28
Temp          13 20 12   12 23 26 15   14 24 28 17   15 25 29 18   12 22 27
Dewpt          1  8  5    7 10 14 10    9 11 15 10   10 14 17 13    7 12 16
PWind dir        SW      SW    SW      SW    SW      SW    SW       W    NW
Wind char        LT      LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC SC   B1 B1 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2   B1 B1 B1
PoP 12hr         10      10    20      20    20      20    20      20    20
Snow                            S  S    S  S  S       S     S  S          S

$$
MTZ055-211100-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
225 PM MST Tue Feb 20 2018

Date          Tue 02/20/18      Wed 02/21/18            Thu 02/22/18         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                     -10          17          -5          19          -5
Temp              5 -8 -8 -8 -6 -9  7 17 14  5  1 -2 -3 -4 12 19 15  6  1 -1 -5
Dewpt            -4-14-13-13-11-14 -3  2  4  1 -3 -5 -7 -8  0  4  3  1 -3 -4 -9
RH               65 74 78 78 78 78 63 51 64 83 83 87 82 82 58 51 58 79 83 87 82
Wind dir          E SE SE  S  S  S SW  W SW  S  S  S  S  S  W NW  E  E  E SE  S
Wind spd          3  5  4  3  4  4  4  4  4  5  4  3  4  4  2  3  3  4  2  2  3
Clouds           SC B1 B2 B2 B2 B1 B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1
PoP 12hr                      5           5           5          10          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                              S  S        S
Wind chill       -2-21-19-17-17-20 -2       -6 -9-10-13-15          -3      -14
Min chill        -2   -21   -17   -22          -9   -13   -16          -6   -14


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

$$
MTZ055-211100-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
225 PM MST Tue Feb 20 2018

Date          Tue 02/20/18      Wed 02/21/18            Thu 02/22/18         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                     -17          13         -11          18         -11
Temp              3 -6-13-13-15-15  3 12 12  5 -1 -3 -7-10 10 18 16  4 -2 -3 -8
Dewpt            -6 -9-15-15-18-16 -6  0  1  2 -3 -5 -9-11  1  4  3  1 -4 -5-10
RH               65 86 90 90 86 95 65 58 60 87 91 91 91 95 66 53 56 87 91 91 91
Wind dir         SW  S  S  S  S  S SW SW SW  S  S  S SE SE  S SW SW SE  S  E SE
Wind spd          9  6  5  4  3  4  9 11  8  3  4  4  3  2  3  6  5  1  2  2  2
Clouds           B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B2 B1 B2 B1 B2 B2 B2 B2 B2 B1
PoP 12hr                     20          30          30          20          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                      C  C  C  C  S  S  S  S  S  S  S  S  S
Snowshwrs                  S  S     S  S
Wind chill      -12-20-27-25-25-27-12 -2    -2-11-13-16
Min chill       -12   -27   -25   -27    -6   -11   -16   -20          -2   -11
Wind Chill           Y  Y  Y  Y  Y


Date           02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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          19      -1    18       5    23       7    26       8    26
Temp          11 15  2    0  9 18  8    6 15 23 11    8 20 26 16    8 20 25
Dewpt          3  5  0   -2  2 11  6    5  8 12  8    4 12 19 13    7 11 18
PWind dir         S      SW    SW      SW    SW      SW    SW      SW     S
Wind char        LT      LT    GN      GN    GN      GN    GN      GN    LT
Avg clouds    B1 B1 B1   B2 B2 B2 B2   B2 B2 B2 B2   B2 B2 OV OV   B2 B1 B1
PoP 12hr         20      20    40      50    30      30    40      40    30
Snow           S  S  S    S  C  C  C    C  C  C  C    C  C  C  C    C  S  C

$$
MTZ008-211100-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
225 PM MST Tue Feb 20 2018

Date          Tue 02/20/18      Wed 02/21/18            Thu 02/22/18         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                     -10          12          -5          14          -6
Temp              2 -7 -6-10-10 -8  3 11 10  3 -1 -4 -3 -5  6 14 10  3  1 -3 -6
Dewpt            -6-10 -9-12-12-10 -5 -1 -1  0 -3 -5 -5 -7 -3  2 -1 -1 -2 -5 -9
RH               68 86 86 90 90 91 68 57 60 87 91 95 91 91 66 58 60 83 87 91 86
Wind dir         SW  S  S  S  S  S  S SW  S  S  S  S  S  S  S SE SE  E SE  S  S
Wind spd          8  6  8  6  6  8  8 10  9  8  8  6  6  8  6  8  8  8  8  8  6
Clouds           SC B1 B2 B1 SC B1 B1 B1 B1 B1 SC SC B1 B1 B1 B1 B2 B1 B1 B1 SC
PoP 12hr                      5          10          10          20          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                        S  S  S  S  S  S  S
Wind chill      -12-21-21-25-25-24-11 -3 -3-11-15-18-17-20 -6    -2-11-13-18-20
Min chill       -12   -21   -26   -25    -6   -15   -18   -20    -2   -13   -20
Wind Chill           Y  Y  Y  Y  Y


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

$$
MTZ011-211100-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
225 PM MST Tue Feb 20 2018

Date          Tue 02/20/18      Wed 02/21/18            Thu 02/22/18         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                     -18           5         -19           6         -14
Temp             -1 -9-11-13-17-17 -3  5 -1-10-16-19-19-12 -1  6  1 -5-10-10-14
Dewpt            -6-13-15-16-19-20 -8 -2 -6-14-19-22-21-14 -7 -2 -4 -7-13-14-17
RH               79 82 82 86 90 86 78 72 79 82 86 85 90 90 75 69 79 91 86 82 86
Wind dir         SW  W SW SW SW SW  S  S  E SE SE  W SW SW  W  W  W SW SW SW SW
Wind spd         12  6  5  3  4  5  5  8  8  4  4  3  5  6  8  9  6  6  5  6  6
Clouds           B1 B2 B2 B2 B1 SC FW CL CL CL FW FW FW SC SC SC SC B1 B1 SC SC
PoP 12hr                      5           5           0           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill      -19-24-25-23-30-32-15 -8-15-22-29-30-34-27-15 -8-12-19-23-25-30
Min chill       -19   -25   -30   -32   -15   -29   -34   -32   -12   -23   -30
Wind Chill           Y  Y  Y  Y  Y


Date           02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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          14       4    23       4    20       4    20       2    18
Temp           3 11  4    7 19 21  6    7 15 20  7    5 15 19  7    2 12 17
Dewpt         -2  5  0    2 10 14  1    4  8 13  3    2  8 12  4   -1  6 10
PWind dir        SW      SW     W       W     W      SW    SW       W     W
Wind char        GN      GN    BZ      GN    GN      GN    GN      GN    LT
Avg clouds    SC FW FW   SC B2 B2 B1   B2 B1 B1 SC   B1 B1 B1 B1   B1 B1 B1
PoP 12hr          5       5    10      10    10      10     5      10    10

$$
MTZ051-211100-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
225 PM MST Tue Feb 20 2018

Date          Tue 02/20/18      Wed 02/21/18            Thu 02/22/18         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                     -13          15          -7          14          -8
Temp             -1-11-13-10-10 -9  8 15  9 -3 -7 -6 -6 -3 10 14  6 -4 -8 -8 -8
Dewpt            -7-14-18-14-13-13  1  2  1 -5-11 -8-11 -6  2  5  0 -5-12-11-14
RH               75 86 77 82 86 82 72 55 69 91 82 91 78 86 69 67 76 95 82 86 74
Wind dir          W  S  S  S  S  S SW SW  S  S  S  S  S SW NW  N  N SW SW SW SW
Wind spd          5  6  8  8  6  8  5  6  6  9  8  8  8  5  4  5  5  4  4  6  8
Clouds           SC SC B1 B2 B1 SC FW FW FW FW CL CL FW FW SC SC SC B1 SC SC SC
PoP 12hr                      0           5           0           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill      -13-26-30-26-25-25 -2    -2-19-23-21-21-15       -4-15-19-23-24
Min chill       -13   -30   -29   -26    -2   -24   -23   -20    -4   -19   -24
Wind Chill           Y  Y  Y  Y  Y


Date           02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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          22       8    26       9    25      10    27       9    25
Temp          15 15  8   14 23 25 12   11 20 24 11   14 25 25 11   11 21 23
Dewpt          4  8  3    4 10 17  8    7 10 16  7   10 14 19  8    6 12 17
PWind dir        SW      SW     W       W     W      SW    SW       W     W
Wind char        GN      GN    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    SC FW FW   SC B1 B1 B2   B2 B2 B1 B1   B1 B1 B2 B2   B1 B1 SC
PoP 12hr         10       5    10      20    20      10    10      20    10
Snow                               S    S  S  S                S

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



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