Point Forecast Matrices
Issued by NWS Billings, MT

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Point Forecast Matrices
National Weather Service Billings MT
909 PM MST Fri Dec 15 2017

MTZ035-161100-
Billings-Yellowstone MT
45.81N 108.53W Elev. 3648 ft
909 PM MST Fri Dec 15 2017

Date          Fri 12/15/17      Sat 12/16/17            Sun 12/17/17         Mon
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                      30          34          18          36          29
Temp                   35 34 32 30 32 33 29 26 23 20 19 19 29 36 34 30 29 31 33
Dewpt                  24 26 28 27 25 23 21 21 19 16 16 15 19 22 21 21 21 23 24
RH                     64 72 85 88 75 66 72 81 84 84 88 84 66 56 58 69 72 72 69
Wind dir                N  N  N NE NE NE  E  E  E NE SW SW SW SW SW SW SW SW  W
Wind spd               12 10  9  8 10  6  5  5  3  3 10 12 13 16 17 17 18 18 20
Clouds                 OV OV OV OV OV OV OV B2 B1 SC FW FW SC SC B1 B1 B2 B2 B2
PoP 12hr                     80         100          20           5          30
QPF 12hr                   0.06        0.11        0.01           0        0.01
Snow 12hr                     1           1           T
Rain                    C
Rain shwrs
Snow                    C  D  D  D  L  L  S  S
Snowshwrs                                                               C  C  C
Winter Weath            Y  Y  Y  Y  Y  Y  Y


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          43      26    43      29    39      14    24      14    29
Temp          40 37 30   28 35 38 34   33 36 31 21   16 19 20 17   15 23 29
Dewpt         27 22 21   20 24 24 24   22 20 16 12    9  8  8  9    7 12 14
PWind dir         W       W    SW       S    SW      NW    NW       W     W
Wind char        BZ      GN    GN      BZ    BZ      GN    GN      GN    GN
Avg clouds    B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2   B2 B1 SC B1   B1 B1 B2
PoP 12hr         30      20    20      30    40      30    20      10    20
Rain shwrs        S  S             C          C
Snowshwrs      C     S    S  S     C    S  C  C  C    C  S             S  S

$$
MTZ065-161100-
Livingston-Park MT
45.70N 110.47W Elev. 4656 ft
909 PM MST Fri Dec 15 2017

Date          Fri 12/15/17      Sat 12/16/17            Sun 12/17/17         Mon
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                      29          30          14          35          25
Temp                   39 35 33 29 30 30 25 24 20 18 15 17 28 35 27 26 29 31 35
Dewpt                  28 28 29 26 25 21 18 18 15 13 10 10 14 17 15 15 16 20 26
RH                     64 75 85 88 81 69 74 77 81 80 80 73 55 47 60 62 58 63 69
Wind dir               SW SW SW  S  E  E NE  N  W  W  W  W SW SW SW SW SW SW SW
Wind spd               31 21 12  9 10 10  8  6  9 10 18 23 24 28 39 39 40 40 41
Wind gust              43                                     39 55 55 56 56 57
Clouds                 OV OV OV OV OV OV B2 B2 SC FW FW FW SC B1 B2 B2 B2 B2 B2
PoP 12hr                     90         100          20          10          30
QPF 12hr                   0.07        0.16        0.02           0        0.03
Snow 12hr                     1           2           T
Rain                    L
Rain shwrs                                                                    C
Snow                    L  D  D  D  L  L  S  S
Snowshwrs                                                         S  S  C  C  C
Winter Weath            Y  Y  Y  Y  Y  Y  Y


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          40      30    44      34    38      12    23      12    27
Temp          38 37 37   33 38 42 45   42 36 27 21   14 19 18 18   14 22 27
Dewpt         29 24 25   24 26 25 26   27 21 13 10    7  8  6  7    8 10 12
PWind dir        SW      SW    SW      SW    SW      NW     W       W    SW
Wind char        VW      WY    BZ      VW    WY      GN    GN      GN    GN
Avg clouds    B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2   B2 B1 SC B1   B1 B1 B2
PoP 12hr         40      30    30      30    50      40    20      10    20
Rain shwrs     C  C             C  C    S  C  C
Snowshwrs      C  C  C    C  C             C  C  C    S  S                S

$$
MTZ032-161100-
Miles City-Custer MT
46.42N 105.90W Elev. 2628 ft
909 PM MST Fri Dec 15 2017

Date          Fri 12/15/17      Sat 12/16/17            Sun 12/17/17         Mon
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                      29          37          18          38          27
Temp                   35 33 31 29 33 35 31 28 25 21 19 19 31 38 31 27 30 30 30
Dewpt                  27 29 28 26 24 22 20 19 18 17 16 16 21 21 18 19 21 23 24
RH                     72 85 88 88 69 59 63 68 74 84 88 88 66 50 58 71 69 75 78
Wind dir               NW NW NW NW NW NW NW NW NW SE  S  S  S SW SW SW  W  W  W
Wind spd               11 12 10  8 10 10  6  5  5  3  6  8 11 12 10 10 12 12 16
Clouds                 OV OV OV OV B2 OV B2 B2 B1 SC SC FW FW FW B1 B1 B2 B2 B2
PoP 12hr                     40          20           5           5          30
QPF 12hr                   0.01        0.01           0           0        0.01
Snow 12hr                     T           T       00-00
Rain                    C
Rain shwrs
Snow                    C  C  S  S
Snowshwrs                                                               C  C  C


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          41      22    40      25    38      11    20       9    26
Temp          37 34 29   23 33 33 29   27 35 30 20   13 16 16 14   11 20 26
Dewpt         28 24 22   18 22 20 22   21 24 19 12    8  7  6  7    7 12 15
PWind dir         W       W     W       S     W      NW    NW       W    NW
Wind char        BZ      GN    GN      GN    GN      BZ    GN      GN    GN
Avg clouds    B2 B2 B2   B2 B1 B2 B2   B2 B2 OV OV   B2 B2 SC SC   B1 B2 B2
PoP 12hr         30      20    20      20    40      40    20      10    30
Rain shwrs        S                           C
Snowshwrs      C  S  S    S  S     S    S  C  C  C    S  S  S          S  C

$$
MTZ033-161100-
Baker-Fallon MT
46.38N 104.24W Elev. 2969 ft
909 PM MST Fri Dec 15 2017

Date          Fri 12/15/17      Sat 12/16/17            Sun 12/17/17         Mon
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                      27          34          16          37          25
Temp                   32 31 29 27 31 33 28 25 24 20 17 18 31 37 27 26 29 29 31
Dewpt                  25 28 27 24 24 22 23 22 21 19 15 15 19 20 20 21 24 24 26
RH                     75 88 92 88 75 63 81 88 88 96 92 88 61 50 74 81 81 81 81
Wind dir               NW NW NW NW NW NW NW NW NW  S  S  S  S SW SW SW SW SW  W
Wind spd               11 13 11  8 11 10  6  5  4  5  6  6 13 14 12 12 14 14 16
Clouds                 B2 OV OV OV OV OV B2 B2 B1 B1 SC SC FW FW SC SC B1 B1 B2
PoP 12hr                     20          20           5           0          20
QPF 12hr                   0.01        0.01           0           0        0.01
Snow 12hr                     T           T       00-00
Snow                    S  S  S  S
Snowshwrs                                                               S  S  C


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          39      20    39      22    36       9    17       9    22
Temp          37 31 26   21 34 26 23   25 33 26 17   10 14 14 13   10 19 22
Dewpt         28 23 20   16 19 16 17   19 20 20 12    7  6  7  7    7 11 13
PWind dir         W       W     W       S    SW      NW    NW       W    NW
Wind char        BZ      BZ    GN      GN    GN      GN    BZ      GN    GN
Avg clouds    B2 B2 B2   B1 B1 B1 B2   B2 B2 B2 OV   B2 B2 SC SC   B1 B2 B2
PoP 12hr         30      20    10      30    40      60    20      10    20
Rain shwrs        S
Snowshwrs      C  S  S             C    S  C  C  L    C  S  S          S  S

$$
WYZ099-161100-
Sheridan-Sheridan WY
44.80N 106.96W Elev. 4019 ft
909 PM MST Fri Dec 15 2017

Date          Fri 12/15/17      Sat 12/16/17            Sun 12/17/17         Mon
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                      28          32          14          37          22
Temp                   34 30 30 28 30 31 29 23 22 19 17 15 30 37 30 22 23 23 26
Dewpt                  24 25 27 28 26 23 23 20 19 16 13 13 20 23 21 17 18 18 20
RH                     66 81 88100 85 72 78 88 88 88 84 92 66 56 69 81 81 81 78
Wind dir               NW NW NW NW  N NW NW NW NW NW SW  S SW  S SW SW SW SW  W
Wind spd                9 12 10  8 12  9  8 10 10  4  4  5  5  4  4  4  6  6  9
Clouds                 B2 OV OV OV OV OV OV OV B2 B1 SC SC FW FW SC SC B1 B1 B2
PoP 12hr                     50         100          40           5          20
QPF 12hr                   0.01        0.21        0.03           0        0.01
Snow 12hr                     T           3           1
Snow                    S  C  D  D  D  D  C  C
Snowshwrs                                       S  S                    S  S  S
Winter Weath               Y  Y  Y  Y  Y  Y  Y


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          43      22    43      25    43      12    22       6    28
Temp          38 36 29   25 37 35 30   30 37 33 22   17 18 16 10    9 22 28
Dewpt         26 26 24   19 26 23 20   20 22 21 14   10  8  7  3    2 11 14
PWind dir         W      NW     W       S    SW      NW    NW      NW    NW
Wind char        GN      GN    LT      GN    LT      GN    GN      GN    LT
Avg clouds    B2 B1 B1   B1 B1 SC B1   B1 B1 B2 B2   B2 B2 B1 SC   B1 B1 B2
PoP 12hr         20      20    10       5    40      60    30      10    20
Rain shwrs        S                           C
Snowshwrs      S     S                     S     L    C  C  S          S  S

$$



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