Point Forecast Matrices
Issued by NWS Glasgow, MT

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Point Forecast Matrices
National Weather Service Glasgow MT
742 PM MST Tue Dec 9 2025

MTZ017-101100-
Glasgow-Valley MT
48.22N 106.61W Elev. 2293 ft
742 PM MST Tue Dec 9 2025

Date          Tue 12/09/25      Wed 12/10/25            Thu 12/11/25         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          29          23          34          -8
Temp                27 21 15 13 18 21 27 28 27 28 29 30 30 31 25 14  4  0 -2 -5
Dewpt               24 17 11 10 17 17 24 27 26 27 29 30 29 30 22  8 -1 -6 -8-10
RH                  88 84 84 87 96 84 88 96 96 96100100 96 96 88 76 79 75 75 78
Wind dir            NW NW NW  E SE SE SE SE  E NW NW NW  N  N  N  N  N NW NW NW
Wind spd            17 13  8  2 11 14 18 11 10  9  9 10 11 13 18 18 18 14 13 11
Wind gust           27                29                      29 29 29 26
Clouds              SC SC SC OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                      5         100          70          90          30
QPF 12hr                      0        0.19        0.06        0.26        0.01
Snow 12hr                 00-00           1       00-00
Frzg rain                                 C  C  L  L
Snow                             S  L  D              D  D  L  L  C  C  S  S  S
Obvis                                 BS PF PF PF  F             PF PF
Wind chill          13  8  4     5  7 13                   20 11 -3-16-20-21-23
Min chill               7     3     1     8    16    20    19    -4   -21   -25
Winter Storm                                                         A  A  A  A
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           12/12/25  Sat 12/13/25  Sun 12/14/25  Mon 12/15/25  Tue 12/16/25
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           0     -13     0     -12    25       6    24      13    35
Temp          -3 -1 -4   -7 -4 -4 -6   -2 12 23 15    8 18 19 15   22 30 27
Dewpt         -8 -6 -7  -11 -7 -8 -8   -5 10 19 13    6 16 16 12   19 27 23
PWind dir         N       E     E       E    SE       W    SE       S     W
Wind char        GN      GN    LT      GN    GN      GN    LT      GN    GN
Avg clouds    OV OV OV   OV OV B2 B2   B2 B2 B1 B1   SC B1 SC B1   B2 OV SC
PoP 12hr         50      90    30      10    10       5     5      10    10
Snow           S  C  D    L  C  S

$$
MTZ020-101100-
Wolf Point-Western Roosevelt MT
48.10N 105.58W Elev. 1985 ft
742 PM MST Tue Dec 9 2025

Date          Tue 12/09/25      Wed 12/10/25            Thu 12/11/25         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          26          21          33          -9
Temp                25 19 12  9 13 17 23 24 23 24 26 29 28 30 26 16  6  0 -3 -6
Dewpt               22 15  8  6 11 13 19 22 23 23 26 28 28 28 22  9  0 -6 -9-12
RH                  88 84 84 87 91 84 84 92100 96100 96100 92 85 73 76 75 75 74
Wind dir            NW  W  W  E  E  E  E SE  E NW  W  W NW  N  N  N  N NW NW NW
Wind spd            16 10  5  3  8 10 14 11  9  6  6  6  9 11 14 13 13 11 10 10
Wind gust           26
Clouds              SC FW FW OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                      5          90          80          90          30
QPF 12hr                      0        0.13        0.04        0.23        0.01
Snow 12hr                 00-00           1       00-00
Frzg rain                                 L  C  D  D
Snow                                C  D  L           D  D  L  L  C  C
Obvis                                     F PF PF PF             PF PF
Wind chill          12  7        2  5 10 13                   14  2-11-16-20-23
Min chill               7     2    -3     7    11    17    19     1   -17   -24
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           12/12/25  Sat 12/13/25  Sun 12/14/25  Mon 12/15/25  Tue 12/16/25
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           0     -14     0     -16    24       3    24      11    35
Temp          -3 -2 -7  -10 -4 -5-11   -5 14 18 13    6 18 18 13   19 30 27
Dewpt        -10 -8-10  -14 -9 -9-12   -7 10 14 10    4 15 15 10   16 25 23
PWind dir         N      NE     E       E     E       W     W      SW     W
Wind char        LT      LT    LT      LT    LT      GN    LT      GN    GN
Avg clouds    OV OV OV   OV OV B1 B2   B2 B2 B1 B1   SC B1 SC B1   B2 OV SC
PoP 12hr         30      90    30      10    10       5     5      10    10
Snow              C  D    L  C  S

$$
MTZ022-101100-
Jordan-Garfield MT
47.33N 106.95W Elev. 2661 ft
742 PM MST Tue Dec 9 2025

Date          Tue 12/09/25      Wed 12/10/25            Thu 12/11/25         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                      21          39          29          41          -2
Temp                31 28 24 23 27 31 35 38 37 36 35 34 34 39 34 22 12  8  6  2
Dewpt               29 26 22 21 24 28 32 36 36 36 35 33 34 36 31 18  8  3  1 -3
RH                  92 92 92 92 88 88 89 92 96100100 96100 89 89 84 84 79 79 79
Wind dir            NW NW  W SE  S  S  S SW  W  W  W NW  W NW NW  N  N  N  N  N
Wind spd            10  5  2  4  9 13 18 12 12  9  8  8 10 13 17 16 14 10  9  6
Wind gust                             29                      28 26
Clouds              B1 SC B2 OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                     30          90          60          80          50
QPF 12hr                      0        0.25        0.08        0.29        0.02
Snow 12hr                 00-00           1       00-00
Rain                                   L  C  C  L  L  D  D  L  L
Snow                 S           C  D                          L  C  C  C  C  L
Obvis                                  F PF       PF PF  F  F    PF PF
Wind chill                            24                      23  9 -3 -7 -8-11
Min chill              21    17    15    21    26    27    26     9    -8   -11
Winter Storm                                                         A  A  A  A
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           12/12/25  Sat 12/13/25  Sun 12/14/25  Mon 12/15/25  Tue 12/16/25
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           6     -13     6     -11    37      12    33      19    42
Temp           4  4 -1   -7  0 -1 -5    3 25 33 24   14 27 27 21   28 38 36
Dewpt          0  2 -1   -8 -3 -2 -5    2 20 28 22   13 23 23 18   25 32 30
PWind dir        NE       E     E      SE     S       W    SW      SW     W
Wind char        LT      LT    LT      LT    GN      GN    LT      GN    GN
Avg clouds    OV OV OV   OV OV B2 B2   B1 B2 B1 B1   B1 B1 FW B1   OV OV SC
PoP 12hr         80      90    40      10    10       5     5      10    10
Snow           L  D  D    L  C  S

$$
MTZ024-101100-
Sidney-Richland MT
47.70N 104.20W Elev. 1985 ft
742 PM MST Tue Dec 9 2025

Date          Tue 12/09/25      Wed 12/10/25            Thu 12/11/25         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          28          22          35          -7
Temp                28 22 14 11 13 17 23 25 25 27 30 32 31 31 27 20 11  5  0 -4
Dewpt               23 18 11  7 10 12 18 24 25 27 30 32 31 31 27 18  9  2 -5 -8
RH                  81 84 88 83 87 80 81 96100100100100100100100 92 91 87 79 82
Wind dir            NW NW NW  N NE SE SE SE SE  S  W NW NW  N  N  N  N NW NW NW
Wind spd            19 13  9  3  4  5 12 12 12  8  6  6  6  9 13 14 14 13 12 11
Wind gust           31 24                                     24    26 24
Clouds              SC SC FW B1 OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                      0          70          70          60          30
QPF 12hr                      0        0.05        0.09        0.12        0.01
Snow 12hr                 00-00           1           1
Frzg rain                                    C  C  C  L
Rain                                                  L
Snow                                   C  L  C        L  L  L  L  C  C
Obvis                                       PF PF PF             PF
Wind chill          14  9  2          11 14 14                16  7 -5-13-18-22
Min chill               9     0     1    10    13    20    23     7   -13   -22
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           12/12/25  Sat 12/13/25  Sun 12/14/25  Mon 12/15/25  Tue 12/16/25
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           1     -12     2     -13    28       7    29      13    38
Temp          -2 -2 -6   -8 -2 -3 -8   -1 16 20 18   10 21 22 16   23 34 32
Dewpt         -7 -8 -9  -11 -6 -7-10   -4 13 17 15    8 19 18 13   20 30 28
PWind dir        NW      NE    NW      SE    SE      SW    SW      SW    SW
Wind char        GN      LT    LT      LT    GN      LT    LT      LT    GN
Avg clouds    OV OV OV   OV OV B1 B1   B2 B2 B1 B1   SC SC FW B1   B2 B2 SC
PoP 12hr         10      70    20       5     5       5     0       5    10
Snow                 L    L  S

$$
MTZ025-101100-
Glendive-Dawson MT
47.13N 104.80W Elev. 2457 ft
742 PM MST Tue Dec 9 2025

Date          Tue 12/09/25      Wed 12/10/25            Thu 12/11/25         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          33          29          39          -2
Temp                31 28 22 19 18 23 30 32 31 33 34 35 34 35 32 25 16  9  5  1
Dewpt               28 24 18 16 16 18 26 31 30 33 34 35 34 35 32 21 12  4 -1 -5
RH                  88 85 84 88 92 81 85 96 96100100100100100100 84 84 80 76 75
Wind dir            NW NW NW NW  E SE SE  S  S SW  W  W NW NW NW  N  N  N NW  N
Wind spd            20 16 10  3  4  6 11 11 11 10  9  8  9 10 14 16 14 13 13 11
Wind gust           31                                           26
Clouds              SC FW FW OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                     20          80          70          70          30
QPF 12hr                      0        0.10        0.07        0.16        0.01
Snow 12hr                 00-00           1       00-00
Frzg rain                                    L
Rain                                      L     L  L  L  L  S
Snow                 S              S  L  L           S  L  L  L  C  C  C  C
Obvis                                       PF PF PF PF  F       PF PF
Wind chill          19 16                                        13  1 -7-12-16
Min chill              15    11    11    17    20    26    26    12    -8   -16
Winter Storm                                                         A  A  A  A
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           12/12/25  Sat 12/13/25  Sun 12/14/25  Mon 12/15/25  Tue 12/16/25
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           4      -9     3     -11    32      12    31      18    40
Temp           2  3 -2   -5 -1 -1 -6    0 20 24 22   14 24 24 19   25 35 35
Dewpt         -3 -2 -4   -7 -3 -3 -8   -2 17 21 19   12 23 22 17   22 32 31
PWind dir         N      NE     N      SE     S       W     W      SW    SW
Wind char        GN      LT    LT      LT    GN      GN    LT      LT    GN
Avg clouds    OV OV OV   OV OV B2 B2   B1 B1 B1 B1   SC SC FW SC   B2 B2 SC
PoP 12hr         30      90    20      10     5       5     0       5    10
Snow              C  D    D  S

$$