Point Forecast Matrices
Issued by NWS Glasgow, MT

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Point Forecast Matrices
National Weather Service Glasgow MT
309 AM MST Mon Dec 18 2017

MTZ017-182300-
Glasgow-Valley MT
48.22N 106.61W Elev. 2293 ft
309 AM MST Mon Dec 18 2017

Date                Mon 12/18/17            Tue 12/19/17            Wed 12/20/17
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                      40          21          32          18          25
Temp             27 31 39 39 33 29 25 24 22 22 28 32 27 24 22 21 19 18 23 24 19
Dewpt            23 27 28 25 23 22 21 21 20 20 20 18 17 18 17 18 15 15 18 17 12
RH               85 85 64 57 66 75 84 88 92 92 71 56 65 77 81 88 84 88 81 74 74
Wind dir         SW  W  W NW NW NW  W  W  W  W NE  E  E  E  E  E  E  E  E NE  N
Wind spd          8  9 11 13 10  8  8  5  5  4  4  8 10 14 17 18 16 14 14 14 14
Wind gust              21 25
Clouds           OV OV OV OV OV B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                     50          20          20          60          60
QPF 12hr                   0.01           0        0.01        0.11        0.18
Snow 12hr                 00-00       00-00           T
Rain                    C  C
Snow              C           S                 S  S  L  L  L  L  L  L  L  L  C
Snowshwrs
Wind chill                                              12  8  6  5  4 10 12  4
Min chill        16    20    23    15    14    14    16     6     4     2     4
Winter Storm                                          A  A  A  A  A  A  A  A


Date               Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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    15       4    15      -4    10      -6     7
Temp           9    1 13 11 11    4 12 13 -1   -2  7  9 -2   -4 -1  4
Dewpt          4   -2  7  6  8    1  4  5 -5   -6 -2  0 -7   -7-10 -5
PWind dir           N    SW       W    NW      NW    NW      NW    NW
Wind char          GN    LT      LT    GN      GN    GN      GN    GN
Avg clouds    OV   B1 SC SC B1   B2 B2 B2 B2   B2 B2 B2 B2   B1 B1 B1
PoP 12hr           30    10      20    20      20    20      20    10
Snow           C    S             S  S  S  S       S          S

$$
MTZ020-182300-
Wolf Point-Western Roosevelt MT
48.10N 105.58W Elev. 1985 ft
309 AM MST Mon Dec 18 2017

Date                Mon 12/18/17            Tue 12/19/17            Wed 12/20/17
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                      41          21          33          18          26
Temp             25 27 38 40 34 29 26 24 22 22 29 33 29 25 23 22 21 18 23 25 19
Dewpt            19 22 25 24 23 20 19 19 18 18 18 17 18 17 17 17 16 14 18 19 11
RH               78 81 59 52 64 69 74 81 84 84 63 51 63 71 77 81 81 84 81 78 70
Wind dir          W  W  W NW NW  W  W  W  W  W NW  E  E  E  E  E  E  E  E NE NE
Wind spd          6  8 14 14  9  9  9  8  6  5  3  5  8 11 14 14 12 13 14 14 14
Wind gust              27 26
Clouds           OV OV OV OV OV B2 B1 B1 B2 B2 OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                     50          10          10          50          60
QPF 12hr                   0.01           0           0        0.10        0.16
Snow 12hr                     T       00-00       00-00
Rain                    C  C  S
Snow              C           S                       C  C  C  C  L  L  L  L  C
Wind chill                                              14  9  8  9  4 11 13  4
Min chill        14    15    26    16    13    12    21     8     8     4     3
Winter Storm                                          A  A  A  A  A  A  A  A


Date               Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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    17       4    18      -3    12      -5     8
Temp           9    2 13 15  4   13 16 16  2   -3  8 11 -1   -4 -3  7
Dewpt          4   -1  6  8  0    9  7  7 -3   -7 -2  1 -6   -9-12 -3
PWind dir           N     W       W    NW      NW    NW       W    NW
Wind char          GN    LT      LT    GN      GN    GN      GN    GN
Avg clouds    OV   B2 SC SC B1   B2 B2 B2 B2   B2 B2 B1 B2   B2 B1 B1
PoP 12hr           40    10      20    20      20    20      10    10
Snow           C    S             S  S  S  S    S  S

$$
MTZ022-182300-
Jordan-Garfield MT
47.33N 106.95W Elev. 2661 ft
309 AM MST Mon Dec 18 2017

Date                Mon 12/18/17            Tue 12/19/17            Wed 12/20/17
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                      48          22          33          22          33
Temp             31 33 44 47 36 29 27 24 22 24 31 32 26 25 25 25 22 25 32 31 20
Dewpt            24 25 26 27 28 23 24 21 20 21 21 23 22 21 21 21 19 21 23 25 16
RH               75 72 49 45 72 78 88 88 92 88 66 69 85 84 84 84 88 84 69 78 84
Wind dir          W  W  W  W  N NW  W  W NW  S  E  E  E  E  E  E  E  E NE  N  N
Wind spd         11 11 17 17 12  8  6  4  3  2  6 11 10 11 10  8  5  5  9 14 16
Wind gust              28 32
Clouds           OV OV OV OV OV OV B2 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                     40          30          50          40          50
QPF 12hr                   0.02        0.01        0.05        0.03        0.05
Snow 12hr                 00-00           T           1
Rain                    S  C  C
Snow              C           C  C  S  S  S  S  C  C  C  C  C  C  C  C  C  C  C
Snowshwrs
Wind chill                                              14                20  5
Min chill        19    23    28    19    18    22    17    14    14    15     4


Date               Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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             4    20       8    17      -2    12      -4    10
Temp          12    4 20  7 18   14 17  6 -1    0 11  6 -4    4 10  7
Dewpt          8    1 12  4 13   10  7  2 -6   -5  1 -1 -9   -1 -2 -3
PWind dir           N     W       W    NW      NW    NW       W    NW
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    OV   B2 SC SC SC   B2 OV B2 B2   B2 B2 B2 B2   B2 B1 B1
PoP 12hr           40    10      30    20      20    20      20    10
Snow           C    C             C  S  S       S  S     S    S

$$
MTZ024-182300-
Sidney-Richland MT
47.70N 104.20W Elev. 1985 ft
309 AM MST Mon Dec 18 2017

Date                Mon 12/18/17            Tue 12/19/17            Wed 12/20/17
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                      44          21          34          21          29
Temp             28 32 42 43 37 31 28 24 23 21 31 34 30 26 25 23 22 21 26 28 21
Dewpt            21 26 30 30 29 24 22 20 20 19 21 18 17 19 19 18 17 17 19 19 14
RH               75 78 62 60 72 75 78 84 88 92 66 51 58 74 78 81 81 84 74 68 74
Wind dir         SW SW  W  W NW NW  W  W  W  W  W NE  E  E  E  E  E  E  E  E NE
Wind spd          9 10 13 13 10  8  9  9  8  6  5  4  5  6 11 11 10 10 13 11 12
Wind gust              24 24
Clouds           OV OV OV OV OV B2 B1 B1 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV
PoP 12hr                     50          20          10          50          50
QPF 12hr                   0.02           0           0        0.05        0.07
Snow 12hr                     T       00-00       00-00
Rain                    S  C  S
Snow              S  C        C  S                    C  C  C  C  C  C  C  C  C
Wind chill                                                 14 12 11 10 15     8
Min chill        18    19    29    18    13    11    22    13    10     9     8


Date               Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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             5    18       8    18       1    13      -2     9
Temp          11    5 14 18 15    9 18 14  5    1 12 10  5   -1  1  7
Dewpt          6    2  6 12 11    5  9  6  1   -3  2  1 -1   -5 -8 -3
PWind dir           N     W      SW    NW      NW    NW       W    NW
Wind char          GN    LT      LT    GN      GN    GN      GN    GN
Avg clouds    OV   B2 B1 SC SC   B2 B2 B2 B2   B2 B2 B2 B2   B1 B2 B1
PoP 12hr           40    10      20    20      20    20      20    20
Snow           C    S             S  S     S    S  S     S    S  S  S

$$
MTZ025-182300-
Glendive-Dawson MT
47.13N 104.80W Elev. 2457 ft
309 AM MST Mon Dec 18 2017

Date                Mon 12/18/17            Tue 12/19/17            Wed 12/20/17
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                      47          23          34          22          33
Temp             28 31 43 47 39 33 28 26 24 24 31 34 28 26 26 23 22 23 30 32 24
Dewpt            21 24 27 29 30 28 24 22 21 20 20 18 18 18 19 17 17 18 20 22 17
RH               75 75 53 49 70 82 85 85 88 84 63 51 66 71 74 77 81 81 66 66 74
Wind dir         SW SW  W  W NW NW  W  W  W  W  W  E  E  E  E  E  E  E  E NE  N
Wind spd         11 13 19 18 12 10 10  9  6  5  4  5  8 10 12 11  9  8 10 10 13
Wind gust              31 31
Clouds           OV OV OV B2 OV B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                     40          30          20          30          30
QPF 12hr                   0.01           0           0        0.02        0.02
Snow 12hr                 00-00       00-00       00-00
Rain                    S  S  C
Snow                 S           S              S  S  C  C  C  C  S  S  C  C  C
Wind chill       17                                        15 12             12
Min chill        16    17    30    19    15    14    19    15    11    12    11


Date               Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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             7    20       8    18       1    13      -2    10
Temp          15    7 19 15 17    8 18 12  5    1 13  5  2    0  3  8
Dewpt          9    3 10 10 11    5  8  5 -1   -4  1 -1 -3   -4 -8 -2
PWind dir           N     W      SW    NW      NW    NW       W    NW
Wind char          GN    LT      LT    GN      GN    GN      GN    GN
Avg clouds    OV   B2 B1 SC SC   B2 B2 B2 B2   B2 B2 B2 B2   B1 B2 B1
PoP 12hr           40    10      20    20      20    10      20    20
Snow           C    C             S  S     S    S        S    S  S

$$



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