Point Forecast Matrices
Issued by NWS Billings, MT

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Point Forecast Matrices
National Weather Service Billings MT
332 PM MST Sun Dec 17 2017

MTZ035-181100-
Billings-Yellowstone MT
45.81N 108.53W Elev. 3648 ft
332 PM MST Sun Dec 17 2017

Date          Sun 12/17/17      Mon 12/18/17            Tue 12/19/17         Wed
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                      33          47          29          41          31
Temp             34 33 33 34 35 35 42 46 43 38 35 32 31 29 36 41 38 35 33 32 32
Dewpt            21 22 22 23 23 24 25 25 25 24 26 26 26 25 26 26 25 26 26 25 24
RH               58 63 63 64 61 64 50 43 49 57 69 78 81 85 67 55 59 69 75 75 72
Wind dir          W  W SW  W  W  W  W  W  W  W NW  W SW  S SE SE  S  S SW SW SW
Wind spd         18 18 19 19 20 19 21 21 20 19 10  9  8  8  9 10 17 17 18 18 18
Clouds           SC SC B1 B1 B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV
PoP 12hr                     10          10          30          20          10
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00           T
Snow                                            C  C  S  S


Date           12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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      13    23      15    20       4    11      -2    11
Temp          38 32 21   15 18 21 17   16 18 17 10    6  9  5  1   -1  6 11
Dewpt         25 21 16   13  9  9 10   11  9  6  4    1  0 -4 -5   -6 -4 -4
PWind dir         W       N     W      SW    NW       N    NW      NW     W
Wind char        BZ      WY    GN      GN    GN      GN    GN      GN    GN
Avg clouds    OV B2 OV   OV B1 SC SC   B1 B2 OV OV   OV B2 B2 B2   B1 B1 B1
PoP 12hr         60      70    20      20    40      40    20      20    10
Rain              L
Snow              L  L    C  S          S  C  C  C    S  S  S  S    S

$$
MTZ065-181100-
Livingston-Park MT
45.70N 110.47W Elev. 4656 ft
332 PM MST Sun Dec 17 2017

Date          Sun 12/17/17      Mon 12/18/17            Tue 12/19/17         Wed
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                      33          45          35          44          36
Temp             33 34 38 38 39 39 43 44 43 42 42 39 38 35 40 44 42 40 42 40 38
Dewpt            22 21 22 24 28 27 28 24 25 27 28 29 28 28 27 25 24 22 24 27 24
RH               63 58 52 57 64 62 55 45 49 55 57 67 67 75 59 47 48 48 48 59 57
Wind dir         SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd         39 42 48 52 54 52 49 43 39 35 29 27 29 31 29 29 41 41 42 42 40
Wind gust        55 74 67 72 73 72 74 60 55 49 41 39 41 43 41 41 57 57 59 59 56
Clouds           B1 B1 B1 B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV
PoP 12hr                     10          10          20          20          10
QPF 12hr                      0           0        0.03        0.01           0
Snow 12hr                 00-00       00-00       00-00
Rain                                      S  S  S  S  S  S  S  S              C
Snow                                                  S  S                    C
High Wind         W  W  W  W  W  W  W  W  W


Date           12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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      12    21      15    17      -1     8      -7     8
Temp          39 30 22   14 18 19 19   18 16 13  9    3  6  3  0   -5  3  8
Dewpt         22 21 15   13  9  8  6   14  9  1 -4   -1 -4 -9-10   -9 -8 -8
PWind dir        SW       N     W      SW    NW       N     W       W     W
Wind char        WY      WY    BZ      GN    BZ      BZ    BZ      BZ    BZ
Avg clouds    OV OV OV   OV B1 SC SC   B1 B2 OV OV   OV B2 B2 B2   B1 SC B1
PoP 12hr         70      70    10      20    40      40    20      20    10
Rain           C  L
Snow           C  L  L    C             S  C  C  C    C  S  S  S    S

$$
MTZ032-181100-
Miles City-Custer MT
46.42N 105.90W Elev. 2628 ft
332 PM MST Sun Dec 17 2017

Date          Sun 12/17/17      Mon 12/18/17            Tue 12/19/17         Wed
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          49          27          38          26
Temp             33 31 31 29 31 33 44 49 42 36 33 31 28 28 33 38 33 30 30 28 27
Dewpt            21 23 24 23 23 24 26 26 28 28 26 27 24 25 23 21 19 21 23 24 24
RH               61 72 75 78 72 69 49 40 57 72 75 85 85 88 66 50 56 69 75 85 88
Wind dir         SW SW SW SW SW SW  W  W NW NW  N  N  N  E  E  E  E  E SE SE  S
Wind spd         10 10 12 12 17 17 23 24 16 16 10  8  8  8  9 10 10 10 11 11 11
Clouds           SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 OV B2 OV OV OV OV B2 B2 OV
PoP 12hr                     10          20          40          20          20
QPF 12hr                      0        0.01        0.03           0        0.01
Snow 12hr                 00-00       00-00           T
Rain                                      C  C              S  S
Rain shwrs                          S  S
Snow                                      C  C  S  S  S  S  S  S  S  S  S  S
Snowshwrs                     S  S


Date           12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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          38      11    21      12    19       3    14      -3    10
Temp          35 31 20   13 16 17 14   13 17 14 10    5  9  7  3   -1  5 10
Dewpt         27 24 17   12  9  8  9   10  9  4  5    2  1 -1 -2   -4 -2 -3
PWind dir        SE       N    NW      SW    NW      NW    NW      NW    NW
Wind char        GN      WY    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    OV OV OV   OV B1 SC SC   B1 OV OV OV   B2 B2 B2 B2   B2 B2 B1
PoP 12hr         30      70    30      10    30      30    20      20    10
Rain              C
Snow              C  L    C  C             S  C  C    S  S  S  S    S

$$
MTZ033-181100-
Baker-Fallon MT
46.38N 104.24W Elev. 2969 ft
332 PM MST Sun Dec 17 2017

Date          Sun 12/17/17      Mon 12/18/17            Tue 12/19/17         Wed
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                      26          48          23          36          21
Temp             29 27 29 27 27 32 44 47 41 35 32 27 25 24 33 35 26 25 25 23 21
Dewpt            21 21 23 23 22 24 28 30 30 30 28 24 23 20 20 21 18 18 18 19 19
RH               72 78 78 85 81 72 53 51 65 82 85 88 92 84 58 56 71 74 74 84 92
Wind dir         SW SW  W  W  W  W  W  W  W NW NW NW NW  W  E  E SE SE SE SE  S
Wind spd         12 12 14 14 16 19 23 23 16 14  9  9  9  9 10 10 10 10 12 12 11
Clouds           SC SC SC B1 B2 B2 B2 B1 B2 B2 B2 B1 B2 B2 B2 B2 OV OV OV OV OV
PoP 12hr                      0          20          30          10          20
QPF 12hr                      0           0        0.02           0           0
Snow 12hr                 00-00       00-00           T
Rain                                      C  C
Snow                                      C  C                    S  S  S  S
Snowshwrs                     S  S


Date           12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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          35       8    18       9    17       2    10      -4     8
Temp          32 27 19   11 14 13 11   10 15 12  7    4  8  4  0   -3  5  8
Dewpt         23 23 17   10  8 10  8    8  7  8  4    1  0 -1 -3   -4 -2 -2
PWind dir        SE       N    NW       W    NW      NW    NW      NW    NW
Wind char        GN      BZ    BZ      GN    GN      GN    BZ      GN    GN
Avg clouds    OV OV OV   OV B2 B1 SC   B1 B2 B2 B2   OV B2 B2 B2   B1 B2 B2
PoP 12hr         20      60    20      10    20      20    20      20    10
Snow              S  C    L  S             S  S  S    S  S  S  S    S

$$
WYZ099-181100-
Sheridan-Sheridan WY
44.80N 106.96W Elev. 4019 ft
332 PM MST Sun Dec 17 2017

Date          Sun 12/17/17      Mon 12/18/17            Tue 12/19/17         Wed
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                      16          49          25          43          28
Temp             22 17 17 18 19 21 41 49 41 36 32 29 28 25 37 43 35 30 30 29 30
Dewpt            15 12 12 13 14 16 28 29 26 26 24 23 24 23 28 28 28 26 26 24 24
RH               74 80 80 80 80 81 59 46 55 67 72 78 85 92 70 55 75 85 85 81 78
Wind dir          W SW  W SW SW SW  W NW  W  W  W  W  W  S  N  N  S  S  S  S SW
Wind spd          5  4  6  6  9 11 12 14 11 10  9  9  4  4  6  6  8  8  8  8  8
Clouds           SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B2
PoP 12hr                      5           5          10          10          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date           12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17
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          45      11    21       8    21       2    11      -6     9
Temp          42 36 22   15 18 16 12   11 19 16  9    6  8  4  0   -3  5  9
Dewpt         27 27 20   13  9  9  6    5  9  9  6    3  0 -2 -3   -6 -5 -7
PWind dir         W      NW    NW       W    NW      NW    NW      NW    NW
Wind char        GN      WY    BZ      GN    GN      BZ    GN      GN    GN
Avg clouds    B2 B1 OV   OV OV B1 SC   SC B2 OV OV   B2 B2 B2 B1   B1 B1 B1
PoP 12hr         30      70    40      10    40      40    20      20    10
Rain              C
Snow                 L    L  C             C  C  C    C  S  S  S    S

$$



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