Point Forecast Matrices
Issued by NWS Billings, MT

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Point Forecast Matrices
National Weather Service Billings MT
1007 AM MST Mon Dec 18 2017

MTZ035-182300-
Billings-Yellowstone MT
45.81N 108.53W Elev. 3648 ft
1007 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          28          41          32          40
Temp                   42 48 43 39 35 32 30 29 35 40 38 36 35 35 33 32 39 38 31
Dewpt                  27 27 25 25 26 24 25 24 26 27 27 26 26 27 25 25 27 24 18
RH                     55 44 49 57 69 72 81 81 69 59 64 67 69 72 72 75 62 57 58
Wind dir                W  W  W  W NW  W SW  S SE SE  S  S SW SW SW SW NW NW  N
Wind spd               25 27 21 19 10  9  8  8  9 10 17 17 18 18 18 18 16 16 25
Wind gust              35 39                                                 35
Clouds                 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV
PoP 12hr                     10          30          20          10          50
QPF 12hr                      0        0.02        0.01           0        0.06
Snow 12hr                 00-00           T           T
Rain                          S  S                                      C
Snow                          S  S  C  C  S  S                    C  C  C  C  L


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            11    25      16    23       5    14       2    18
Temp          21   14 17 23 20   19 20 18 10    6 11 10  4    4 11 10
Dewpt         12    8  9 11 12   14 11  8  4    1  1  0 -4   -3  1 -2
PWind dir           N     W      SW     N       N    NW       W     W
Wind char          WY    GN      GN    GN      GN    GN      GN    GN
Avg clouds    OV   OV B1 FW SC   B2 OV OV OV   B2 B2 B1 B1   B1 B1 B1
PoP 12hr           60    20      30    50      40    20      10    10
Snow           L    C  S     S    C  C  C  C    C  S  S

$$
MTZ065-182300-
Livingston-Park MT
45.70N 110.47W Elev. 4656 ft
1007 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          37          46          37          41
Temp                   40 48 46 44 43 39 39 37 40 44 42 42 44 42 40 37 39 35 29
Dewpt                  27 27 24 24 25 23 25 23 24 25 24 23 25 26 25 25 30 23 18
RH                     59 44 42 45 49 52 57 56 52 47 48 46 47 53 55 61 70 61 63
Wind dir               SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  W  W NW
Wind spd               50 44 41 36 29 27 29 31 29 29 41 41 42 42 40 40 18 18 26
Wind gust              71 63 57 51 41 39             56 56 57 57 56 56       36
Clouds                 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV
PoP 12hr                     10          30          20          10          60
QPF 12hr                      0        0.03        0.02           0        0.12
Snow 12hr                 00-00           T           T
Rain                          C  C  S  S  S  S  S  S              C  C  L
Snow                                      S  S                       C  L  L  C
High Wind               W  W  W


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            12    26      17    22       3    12       1    16
Temp          22   14 21 23 25   22 21 17 12    4  8  7  5    2 10  7
Dewpt          9   11 11 11 10   14 13  8 -1    0  0 -4 -9   -3 -3 -2
PWind dir          NW     W       W    NW       N    NW       W     W
Wind char          WY    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    OV   B2 SC FW SC   B2 B2 OV OV   B2 B2 B2 B1   B1 B1 B1
PoP 12hr           50    10      40    60      40    30      10    10
Snow           C    C        S    C  L  C  C    C  C  S

$$
MTZ032-182300-
Miles City-Custer MT
46.42N 105.90W Elev. 2628 ft
1007 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                      49          25          38          24          41
Temp                   44 49 42 35 32 27 26 26 34 38 33 28 28 27 26 24 35 41 33
Dewpt                  26 26 28 29 27 24 23 23 24 23 21 20 22 23 22 21 26 27 24
RH                     49 40 57 78 81 88 88 88 66 54 61 71 78 85 85 88 69 57 69
Wind dir                W  W NW NW  N  N  N  E  E  E  E  E SE SE SE SE  N  N  N
Wind spd               23 25 17 17 10  8  8  8  9 10 10 11 11 11 11 11  8  8 20
Wind gust                 35
Clouds                 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV B2 OV OV OV OV OV
PoP 12hr                     20          40          20          20          30
QPF 12hr                      0        0.03        0.02        0.01        0.01
Snow 12hr                 00-00           T           T
Rain                          C  C              S  S                    C  C
Rain shwrs              S  S
Snow                          C  C  S  S  S  S  S  S  S  S        S  S  C  C  C
Snowshwrs


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            10    21      13    21       5    14       1    17
Temp          19   12 15 16 14   14 17 15 10    6 11  8  6    3 11 10
Dewpt         13    9  7  8  9   11  9  7  3    2  1 -1  0   -2  1  0
PWind dir           N    NW      SW    NW      NW    NW       W    NW
Wind char          WY    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    OV   OV B2 SC FW   B1 OV OV OV   B2 B2 B2 B2   B2 B2 B1
PoP 12hr           50    20      20    40      30    20      20    10
Snow           C    C  S          S  C  C  S    C  S  S  S

$$
MTZ033-182300-
Baker-Fallon MT
46.38N 104.24W Elev. 2969 ft
1007 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          36          20          38
Temp                   46 48 41 35 31 26 24 23 32 36 29 26 26 22 22 21 33 37 29
Dewpt                  28 29 30 31 27 23 22 19 22 24 21 20 20 20 20 18 24 27 26
RH                     49 47 65 85 85 88 92 84 66 61 72 78 78 92 92 88 69 67 88
Wind dir                W  W  W NW NW NW NW  W  E  E  E SE SE SE SE SE SE SE NE
Wind spd               23 25 16 14  9  9  9  6 10 10 11 11 12 12 11 11 11 11 13
Wind gust                 35
Clouds                 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV B2 B2 B2 B2 B2 OV
PoP 12hr                     20          40          10          20          20
QPF 12hr                      0        0.03           0        0.02        0.01
Snow 12hr                 00-00           T       00-00
Rain                          C  C
Rain shwrs              S  S
Snow                          C  C                    S  S  S  S  S  S  S  S  C
Snowshwrs


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    18       9    18       2    11      -2    12
Temp          19    9 13 10 11   11 16 13  8    3  9  6  5    1  9  5
Dewpt         15    7  5  6  7    9  9  9  4    0  1  1  0   -2  0 -2
PWind dir           N    NW      SW    NW      NW    NW       W    NW
Wind char          BZ    BZ      GN    BZ      GN    BZ      GN    GN
Avg clouds    OV   OV B2 B1 SC   B1 B2 B2 B2   B2 B2 B2 B2   B2 B1 B1
PoP 12hr           50    20      10    30      20    20      10    10
Snow           C    C  S  S          C  C  S    S  S  S

$$
WYZ099-182300-
Sheridan-Sheridan WY
44.80N 106.96W Elev. 4019 ft
1007 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                      50          26          44          26          49
Temp                   41 50 42 37 35 32 28 27 37 44 36 30 30 30 29 27 46 47 37
Dewpt                  28 29 26 25 24 23 22 21 25 26 27 26 24 24 21 21 29 27 28
RH                     59 44 53 61 64 69 78 78 61 49 69 85 78 78 72 78 51 45 70
Wind dir                W NW  W  W  W  W  W  S  N SW  S  S  S  S SW SW NW NW NW
Wind spd               12 14 11 10  9  9  4  4  6 11  8  8  8  8  8  8  9  9 26
Wind gust                                                                    36
Clouds                 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 B1 B1 OV
PoP 12hr                      5          10          10          10          30
QPF 12hr                      0           0           0           0        0.01
Snow 12hr                 00-00       00-00       00-00
Rain                                                                    C  C
Snow                                                              S  S        L


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            11    25      10    23       3    14      -1    18
Temp          21   14 19 20 15   14 19 17 11    6 10  7  1    2 12  9
Dewpt         17   11 11 12  9    9 10 10  5    1  0  0 -4   -4 -2 -1
PWind dir          NW    NW      SW    NW      NW    NW       W    NW
Wind char          WY    BZ      GN    GN      BZ    GN      GN    GN
Avg clouds    OV   OV OV B1 FW   SC B2 OV OV   B2 B2 B2 B2   B1 B1 B1
PoP 12hr           70    30      20    50      40    30      20    20
Snow           L    L  C  S       S  C  C  C    C  C  C  S    S     S

$$


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