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Point Forecast Matrices
National Weather Service Great Falls MT
923 AM MST Mon Feb 19 2018

MTZ012-192300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
923 AM MST Mon Feb 19 2018

Date                Mon 02/19/18            Tue 02/20/18            Wed 02/21/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      -1         -20          11         -12          15
Temp                   -4 -1 -3 -7 -9-12-19-14  2 11  6 -2 -5 -7 -9-11  3 15 12
Dewpt                  -8 -7 -8-11-14-15-25-23 -9 -4 -6 -9-11-12-14-15 -7  1 -1
RH                     82 75 78 82 78 86 73 63 59 50 57 71 74 78 78 82 62 53 55
Wind dir                N  N NE SW SW SW SW SW SW SW SW  S SW SW SW SW SW SW SW
Wind spd                3  3  3  4  6  9 11 12 17 16 12  9  9  9  8  9 11 11 10
Wind gust                                         26
Clouds                 OV OV OV B1 B1 SC FW SC SC SC B1 B1 B2 B1 B1 SC FW FW FW
PoP 12hr                     40          20           5          10          10
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                     T       00-00       00-00
Snow                    C  C  S  S
Wind chill            -12 -9-11-18-24-30-41-36-18 -6-10-18-21-24-25-29-13    -1
Min chill             -14   -11   -24   -41   -41   -13   -21   -25   -29    -6


Date               Thu 02/22/18  Fri 02/23/18  Sat 02/24/18  Sun 02/25/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            -2    15      -1    24      10    26       9    28
Temp           0    0 11 14  0    5 18 24 12   13 24 24 11   11 25 26
Dewpt         -7   -6  0  3 -5    0  5 11  5    9 14 13  6    6 12 14
PWind dir          SW     W       W    SW      SW    SW       W    SW
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW   FW SC B1 B1   SC SC SC B1   SC B2 B2 B2   B2 B1 SC
PoP 12hr            5     0      10     5       5    20      20    20
Snow                                               S  S  S    S  S

$$
MTZ010-192300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
923 AM MST Mon Feb 19 2018

Date                Mon 02/19/18            Tue 02/20/18            Wed 02/21/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       2         -14          13         -13          15
Temp                   -4  2  0 -7-11-13-13 -9  3 13  7  0 -4 -7-11-12  4 15 10
Dewpt                  -9 -8 -9-13-18-21-19-14 -7 -1 -2 -5 -8-12-15-16 -6  2 -2
RH                     78 62 65 74 70 66 73 78 62 53 66 79 82 78 82 82 62 55 57
Wind dir                N NW  W  W  W  W  W  W  W  W NW NW  W  W  W  W SW SW SW
Wind spd                3  4  4  6  8  8 10 11 13 12 11  5  5  8  9  9 11 11 11
Wind gust                                         23
Clouds                 OV B2 B2 SC CL FW SC SC SC B1 B2 B2 B1 B1 SC FW FW FW FW
PoP 12hr                     30          10          10          20          10
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                     T       00-00       00-00
Snow                    C  S                          S  S  S  S
Wind chill            -12 -8-10-21-28-30-32-28-15 -1 -8-12-16-23-29-30-12    -5
Min chill             -18   -10   -28   -32   -31    -9   -16   -29   -31    -6


Date               Thu 02/22/18  Fri 02/23/18  Sat 02/24/18  Sun 02/25/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            -3    14      -1    22       8    23       6    25
Temp          -3   -3 10 12  1    3 18 21 10   10 22 20  9    7 20 24
Dewpt         -8   -8  0  1 -2   -2  7  9  4    6 14 10  5    2 10 13
PWind dir           W    NW       W    SW       W     W       W     W
Wind char          GN    GN      GN    BZ      BZ    BZ      GN    BZ
Avg clouds    FW   SC B1 B1 B1   SC SC SC SC   B1 B1 B2 B2   B1 B1 B1
PoP 12hr            0    20      10     5       5    20      20    20
Snow                      S                           S  S    S  S

$$
MTZ014-192300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
923 AM MST Mon Feb 19 2018

Date                Mon 02/19/18            Tue 02/20/18            Wed 02/21/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       3         -19          10         -10          17
Temp                   -1  3  2 -3 -5 -7-18-14  2 10  6 -1 -4 -7 -9 -8  9 17 15
Dewpt                 -11 -9-10-13-14-15-21-17 -9 -5 -5 -6 -9-12-14-11 -3  2  2
RH                     61 56 56 61 64 67 85 86 59 50 60 79 78 78 78 86 57 51 55
Wind dir               NW NW NW  W  W SW  S SW SE  E SE  S  S SW  S  S  S SW SW
Wind spd                8  8  8  5  3  2  3  4  4  5  5  2  3  3  3  4  4  5  4
Wind gust                                13
Clouds                 B2 B1 B1 B2 B2 B1 SC FW FW SC SC B1 B1 B1 B1 SC SC SC SC
PoP 12hr                     20          10           5          10          20
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                     T       00-00       00-00
Snow                    S  S                                            S  S
Wind chill            -15-11-12-15-14   -28-26 -8    -4   -12-16-18-19
Min chill             -19   -13   -15   -28   -30    -4   -12   -18   -22


Date               Thu 02/22/18  Fri 02/23/18  Sat 02/24/18  Sun 02/25/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             2    19       2    26      11    29      12    29
Temp           7    3 13 19  7    3 19 26 14   12 24 29 17   13 25 28
Dewpt          1   -3  0  6  1   -2  6 14  7    7 13 17 12    8 12 17
PWind dir           S    SE      NW    SW      SW     S      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   SC SC B1 B1   B1 SC SC B1   B1 B2 B2 B2   B2 B2 B1
PoP 12hr           10     0      10     5      10    20      30    20
Snow                                               S  S  C    S  S  S

$$
MTZ055-192300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
923 AM MST Mon Feb 19 2018

Date                Mon 02/19/18            Tue 02/20/18            Wed 02/21/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       3         -21           7         -12          16
Temp                   -3  1  3 -4 -7 -9-20-18 -6  5  5 -8-12-12-11 -8  5 15 14
Dewpt                 -10 -8 -7-11-13-15-23-22-16-10 -6-13-16-16-15-14 -7  0  0
RH                     71 65 62 71 74 74 85 81 61 49 59 78 82 82 82 74 57 50 53
Wind dir                W NW NW  S  S  S  S SE NW  N SE SE  S  S  S  S SW  W SW
Wind spd                5  3  4  4  3  2  3  4  4  4  4  5  4  4  4  5  5  5  4
Clouds                 OV OV OV B2 B2 B2 B1 SC FW FW SC SC B1 B2 B2 B2 B1 SC SC
PoP 12hr                     20          20          10          10          10
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                     T       00-00       00-00
Snow                    S  S  S  S  S                                         S
Wind chill            -15 -7 -6-15-16   -31-31-17 -4 -4-21-24-24-23-21 -6
Min chill             -20   -14   -16   -31   -33   -12   -24   -24   -23    -1


Date               Thu 02/22/18  Fri 02/23/18  Sat 02/24/18  Sun 02/25/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            -1    19      -1    24       7    28      10    29
Temp           2    0 12 19  4    1 17 23 11    9 24 27 15   11 24 28
Dewpt         -4   -6 -1  4 -2   -4  4 10  5    3 11 16 10    6 12 13
PWind dir           S    SW       E    SW      SW    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   SC SC B1 B1   B1 SC SC B1   B1 B2 B2 B2   B2 B2 B1
PoP 12hr           20     5      10    10      10    20      20    20
Snow           S                                   S  S  S    S  S  S

$$
MTZ055-192300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
923 AM MST Mon Feb 19 2018

Date                Mon 02/19/18            Tue 02/20/18            Wed 02/21/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       9         -27           8         -17          12
Temp                    4  8  5 -3 -6 -9-22-25 -4  7  6 -9-14-13-14-16  2 11 11
Dewpt                  -4 -2 -5-10-14-16-23-26-16-12 -4-12-16-16-16-16 -4  2  3
RH                     68 63 62 71 67 70 95 95 55 40 62 86 90 86 90100 75 66 69
Wind dir                N  N  N  N NE  E  N  E SW SW SW  S  S  S  S  S SW SW SW
Wind spd                6  8  8  3  4  3  2  2  2  9  9  4  5  5  6  5  9 11  9
Clouds                 OV OV OV B2 B1 B1 B1 SC SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     30          10          20          30          30
QPF 12hr                   0.01           0           0        0.01        0.02
Snow 12hr                     T       00-00       00-00
Snow                    S  S                       S  S  S  C  C  C  C  C  C  C
Obvis                                    PF PF
Wind chill             -8 -4 -8-11-17-18          -7 -8-20-28-27-30-31-13 -3 -2
Min chill             -11    -8   -17   -22   -26    -8   -28   -30   -32    -8


Date               Thu 02/22/18  Fri 02/23/18  Sat 02/24/18  Sun 02/25/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            -8    19      -4    21       3    23       7    25
Temp          -8   -8 11 18  1   -2 14 20  6    5 17 23 14    7 19 25
Dewpt        -10  -10  2  8 -2   -4  5 11  3    3  9 16 11    5 10 16
PWind dir           S     S       S    SW      SW    SW      SW    SW
Wind char          LT    LT      LT    LT      GN    GN      GN    GN
Avg clouds    B1   B1 B1 B2 B2   B1 B1 B1 B1   B2 B2 OV B2   B2 B2 B2
PoP 12hr           30    10      20    10      20    30      40    30
Snow           C    C             S             S  S  C  C    C  C  C

$$
MTZ008-192300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
923 AM MST Mon Feb 19 2018

Date                Mon 02/19/18            Tue 02/20/18            Wed 02/21/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       4         -17           9          -8          15
Temp                   -3  3  3 -4 -6 -8-14-15 -2  7  8 -2 -3 -5 -5 -8  6 14 14
Dewpt                 -10 -7 -8-12-14-14-15-16-11 -7 -4 -8 -7 -6 -7 -8 -3  2  0
RH                     71 62 59 67 67 74 95 95 64 52 57 75 82 95 91100 66 58 53
Wind dir               NE NE NE NE  E SE  S  S SW  S  S  S  S  S  S  S  S SW  S
Wind spd                9  9  9  8  6  4  5  8  6  9  9  8  9  9  9  9  9 12 10
Wind gust                                         19
Clouds                 B2 B2 B1 B2 B1 B1 B1 SC FW SC SC SC B1 B1 B2 B1 B1 SC B1
PoP 12hr                     20          10          10          10          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                    S                                                     S
Wind chill            -19-12-12-19-20-19-28-32-15 -7 -5-17-19-21-21-25 -8
Min chill             -24   -15   -20   -28   -34   -11   -19   -21   -25    -4


Date               Thu 02/22/18  Fri 02/23/18  Sat 02/24/18  Sun 02/25/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             0    20       2    25       7    27      10    29
Temp           5    1 10 20  8    2 14 25 11    8 21 27 15   10 22 29
Dewpt          0   -3  0  6  4   -1  3 12  6    4 10 13  9    6 10 14
PWind dir           S    SE       E     S       S     S      SW    SW
Wind char          GN    LT      GN    GN      GN    GN      GN    GN
Avg clouds    SC   SC B1 B1 B1   B1 SC SC B1   B1 B2 B2 B2   B1 B2 B1
PoP 12hr           20    10      20    10      10    20      30    20
Snow           S                  S                S  S  C    C  S  S

$$
MTZ011-192300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
923 AM MST Mon Feb 19 2018

Date                Mon 02/19/18            Tue 02/20/18            Wed 02/21/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       0         -22           4         -16           8
Temp                   -4  0 -1 -6-11-12-21-18 -8  4  0 -5 -9-12-15-14 -2  8  4
Dewpt                  -9 -7 -8-12-16-18-23-21-14 -4 -6-10-13-16-18-17 -9  1 -2
RH                     78 71 71 74 78 74 90 85 74 68 75 78 82 82 86 86 71 72 75
Wind dir                W  W  W SW SW SW SW SW SW SW SW SW SW SW  S SW SW SW  S
Wind spd                2  4  3  5  5  9 12 14 16 14 12  8  4  4  5  8  8  9  9
Clouds                 OV OV OV OV B1 B1 SC SC SC B1 B1 B2 B2 B2 B1 SC FW FW FW
PoP 12hr                     40          20          10          20          10
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                     T       00-00       00-00
Snow                    C  S  S  S                          S  S
Wind chill               -10 -9-19-25-30-44-42-30-14-18-20-20-24-29-31-17 -5-10
Min chill              -6   -11   -25   -44   -45   -24   -21   -29   -32   -11


Date               Thu 02/22/18  Fri 02/23/18  Sat 02/24/18  Sun 02/25/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            -9     8      -8    16       3    20       2    20
Temp          -6   -8  4  6 -6   -5 10 16  7    4 18 18  7    2 11 20
Dewpt        -11  -11 -3  1 -9   -7  4  8  1    1 10 11  3   -1  4 12
PWind dir           S    SW      SW    SW      SW     W       W    SW
Wind char          LT    GN      LT    GN      GN    GN      GN    GN
Avg clouds    FW   FW SC SC SC   SC SC SC SC   SC B1 B1 B1   B1 B1 B1
PoP 12hr            5     0      10     5      10    20      20    20
Snow                                                  S  S       S  S

$$
MTZ051-192300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
923 AM MST Mon Feb 19 2018

Date                Mon 02/19/18            Tue 02/20/18            Wed 02/21/18
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      -1         -20           8         -13          16
Temp                   -4 -2 -3 -9-12-13-19-15  1  8  0-12-12-12-12 -8  9 16 11
Dewpt                  -8 -7 -8-12-16-17-24-22-10 -6 -8-16-18-18-19-16 -1  2 -1
RH                     82 79 78 86 82 82 77 69 59 52 68 82 74 74 70 67 63 53 57
Wind dir                N  N NW SW SW SW SW  S  W  W SW  S  S  S SW  S SW SW SW
Wind spd                3  4  4  3  4  5  9  9  8  9  6  8  8  8  8  8  6  6  6
Clouds                 OV OV OV OV B2 B2 SC FW FW SC SC B1 SC B1 B1 B1 SC FW SC
PoP 12hr                     50          20           5           5          10
QPF 12hr                   0.01        0.01           0           0           0
Snow 12hr                     T           T       00-00
Snow                    C  C  S  S  S
Wind chill            -12-12-13-18-24-27-39-34-13 -5-13-29-29-29-29-24 -2
Min chill             -14   -14   -24   -39   -39   -13   -30   -29   -29


Date               Thu 02/22/18  Fri 02/23/18  Sat 02/24/18  Sun 02/25/18
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            -2    18      -2    24       9    26       8    27
Temp          -2    1 16 13 -1    3 21 21 10   14 25 21 10   10 23 25
Dewpt         -7   -6  3  5 -4   -2  9 13  6    9 15 15  7    4 11 18
PWind dir          SW     W       W    SW      SW     W       W     W
Wind char          GN    LT      LT    GN      GN    GN      GN    GN
Avg clouds    FW   FW SC SC SC   SC SC FW SC   SC B1 B2 B2   B2 B1 B1
PoP 12hr           10     0       5     5       5    20      20    20
Snow                                                  S  S    S  S  S

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




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