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Point Forecast Matrices
National Weather Service Billings MT
343 PM MST Mon Dec 18 2017

MTZ035-191100-
Billings-Yellowstone MT
45.81N 108.53W Elev. 3648 ft
343 PM MST Mon Dec 18 2017

Date          Mon 12/18/17      Tue 12/19/17            Wed 12/20/17         Thu
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          39          29          34           8
Temp             40 37 34 31 30 29 33 37 35 34 33 32 30 29 34 31 24 18 15 12  9
Dewpt            22 24 26 26 26 26 25 26 26 26 26 25 24 24 25 18 11 11  9  7  6
RH               48 59 72 81 85 88 72 64 69 72 75 75 78 81 69 58 57 73 77 80 87
Wind dir          W  W  N  W SE SE  E  E  S  S SW SW SW SW NW NW  N  N  N  N  W
Wind spd         23 18 10  9  8  8  9 10 17 17 18 18 13 14 16 18 25 25 20 20 12
Wind gust                                                        35 35
Clouds           B1 B1 B2 B2 OV B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 OV OV OV OV B1
PoP 12hr                     30          20          10          70          60
QPF 12hr                   0.01        0.01           0        0.07        0.05
Snow 12hr                     T           T       00-00
Rain              C  C
Snow                    C  C  S  S                    C  C  L  L  L  L  C  C  S
Obvis                                                            BS BS


Date           12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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          25      16    19       5    14       3    17       4    17
Temp          17 23 20   18 18 14  9    6 11 10  8    4 11 10  5    5 12 17
Dewpt          8 11 11   11  9  4  2    1  2  0 -1   -3  1  1 -3   -3  0  0
PWind dir         W       W     N      NW    NW       W    NW       W     W
Wind char        GN      BZ    GN      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    B1 FW SC   B2 OV OV OV   B2 B2 B2 B1   B1 B1 B1 B1   SC SC B1
PoP 12hr         20      30    40      30    20      20    10      10     5
Snow           S          C  C  C  C    S  S  S  S

$$
MTZ065-191100-
Livingston-Park MT
45.70N 110.47W Elev. 4656 ft
343 PM MST Mon Dec 18 2017

Date          Mon 12/18/17      Tue 12/19/17            Wed 12/20/17         Thu
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                      37          45          33          35          10
Temp             42 42 41 37 37 37 40 43 43 43 43 40 40 33 30 26 22 19 16 13 11
Dewpt            23 26 24 26 29 29 29 28 29 28 28 26 27 27 28 16 11 12  8  9  9
RH               46 53 50 64 72 72 64 55 57 55 55 57 59 78 92 65 62 74 70 84 91
Wind dir         SW SW SW SW SW SW SW SW SW SW SW SW SW SW  W  W NW NW  N  N  W
Wind spd         41 39 32 27 31 33 29 34 41 41 42 36 34 27 18 20 26 26 20 20 13
Wind gust        57 55 44 39 43 47 41 48 57 57 59 51 48 39       36 36
Clouds           B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 B2 OV OV B2 B2 SC
PoP 12hr                     30          20          10          60          50
QPF 12hr                   0.02        0.03           0        0.11        0.02
Snow 12hr                 00-00       00-00       00-00
Rain              C  C  S  S  S  S  S  S              L  L
Snow                    S  S  S  S                    L  L  L  L  C  C  S  S
Obvis                                                            BS BS
High Wind         W  W


Date           12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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          25      18    18       3    12       2    15       4    20
Temp          20 24 24   21 16 13  8    4 10  8  8    3 11 10  7    5 14 20
Dewpt         11 10 11   13 10  4 -3    0  0 -3 -5   -3 -2 -3 -6   -1  1  0
PWind dir         W       W     N       N     W       W     W      SW    SW
Wind char        BZ      BZ    BZ      GN    BZ      WY    WY      VW    SD
Avg clouds    SC FW SC   B2 OV OV OV   B2 B2 B2 B1   B1 B1 B1 B1   B1 SC B1
PoP 12hr          5      40    50      30    20      20    10      10    10
Snow                      C  C  C  C    C  S  S  S

$$
MTZ032-191100-
Miles City-Custer MT
46.42N 105.90W Elev. 2628 ft
343 PM MST Mon Dec 18 2017

Date          Mon 12/18/17      Tue 12/19/17            Wed 12/20/17         Thu
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          36          23          33           7
Temp             44 36 32 29 27 27 32 35 30 28 29 26 24 24 30 32 24 17 15 12  9
Dewpt            30 30 28 26 25 26 24 22 20 20 22 22 21 21 24 21 16 11 11  9  7
RH               57 79 85 88 92 96 72 59 66 71 75 85 88 88 78 63 71 77 84 87 91
Wind dir         NW NW NW NW  N  E  E  E  E  E  E  E  E  E NE  N  N  N  N  N NW
Wind spd         17 18 10  8  8  8  9 11 11 12 13 12 13 12  8 12 21 21 25 25 11
Wind gust                                                              35 35
Clouds           B2 B2 B2 B2 OV OV OV OV OV B2 B2 B2 B2 B2 B2 OV OV OV OV OV B2
PoP 12hr                     40          20          20          60          60
QPF 12hr                   0.04        0.02           0        0.03        0.08
Snow 12hr                     T           T       00-00
Rain              C  C
Rain shwrs
Snow              C  C  S  S  S  S  S  S  S  S        S  S  L  L  L  L  C  C  S
Obvis                                                                  BS BS


Date           12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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          21      13    19       6    14       1    14      -1    15
Temp          14 16 16   14 16 13 11    7 11 10  9    3  9  6  2   -1  9 15
Dewpt          7  7 10   11  8  5  5    2  2  2  1   -2 -1 -5 -5   -4  1  0
PWind dir         W      SW    NW      NW    NW      NW    NW      SW    NW
Wind char        GN      GN    BZ      BZ    BZ      BZ    GN      GN    GN
Avg clouds    B2 SC FW   B2 OV OV OV   B2 B2 B2 B2   B2 B1 B1 B1   B1 SC B1
PoP 12hr         20      20    30      20    20      20    10      10     5
Snow           S          S  C  C  S    S  S  S  S    S

$$
MTZ033-191100-
Baker-Fallon MT
46.38N 104.24W Elev. 2969 ft
343 PM MST Mon Dec 18 2017

Date          Mon 12/18/17      Tue 12/19/17            Wed 12/20/17         Thu
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                      22          34          21          31           3
Temp             41 35 31 28 23 23 30 33 29 27 28 25 23 22 29 30 22 15 12  7  5
Dewpt            32 31 27 25 21 20 21 20 19 19 20 20 20 17 19 21 20 13  8  6  4
RH               70 85 85 88 92 88 69 58 66 71 71 81 88 81 66 69 92 92 84 96 95
Wind dir          W NW NW NW NW  W  E  E  E  E SE SE SE SE SE  E  N  N  N  N NW
Wind spd         16 12  9  9  9  6 10 11 11 13 16 16 16 16 12 11 16 16 21 21 13
Clouds           B2 OV B2 B2 B2 B2 B2 B2 OV OV OV B2 B2 B2 B2 B2 OV OV OV OV B2
PoP 12hr                     40          10          30          40          70
QPF 12hr                   0.04           0           0        0.01        0.09
Snow 12hr                     T       00-00       00-00
Rain              C  C
Rain shwrs
Snow              C  C                    C  C              C  C  L  L  C  C  S


Date           12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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          17       9    15       2    11      -3     9      -4    12
Temp          11 10 13   13 14 10  7    3  8  7  5   -1  5  1 -1   -4  8 12
Dewpt          5  4  7   10  6  6  2    1  1  4  2   -5 -4 -5 -6   -6 -1  1
PWind dir        NW      SW    NW      NW    NW      NW    NW       W    NW
Wind char        GN      GN    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    B2 SC SC   B1 OV OV B2   B2 B2 B2 B2   B1 B1 B1 B1   B1 SC B1
PoP 12hr         20      20    30      30    20      20    10      10     5
Snow           S          S  C  S  S    C  S  S  S    S

$$
WYZ099-191100-
Sheridan-Sheridan WY
44.80N 106.96W Elev. 4019 ft
343 PM MST Mon Dec 18 2017

Date          Mon 12/18/17      Tue 12/19/17            Wed 12/20/17         Thu
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                      24          43          26          45           9
Temp             38 34 31 28 26 24 36 43 35 30 30 29 27 28 43 42 29 20 17 14 11
Dewpt            23 23 21 21 22 21 26 28 26 25 25 21 19 18 26 24 22 16 12  9  9
RH               54 64 66 75 85 88 67 55 69 81 81 72 71 66 51 48 75 84 80 80 91
Wind dir          W  W  W  W NW  S NW SW SW SW SW SW SW SW NW NW NW NW NW NW NW
Wind spd         10 10  9  9  4  4  6 11  8  8  8  8  6  5 10 17 27 27 27 27 14
Wind gust                                                        37 37 37 37
Clouds           B1 B1 B1 B1 B1 B1 SC SC B1 B1 B1 B1 B1 SC SC B1 OV OV OV OV B2
PoP 12hr                     10          10           5          30          80
QPF 12hr                      0           0           0        0.01        0.11
Snow 12hr                 00-00       00-00       00-00
Rain                                                        C  C
Snow                                                              D  D  C  C  C
Obvis                                                            BS BS BS BS


Date           12/21/17  Fri 12/22/17  Sat 12/23/17  Sun 12/24/17  Mon 12/25/17
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          24       9    20       3    14       0    17      -2    19
Temp          18 19 14   13 17 15  8    5 10  9  6    2 12  8  0    0 14 19
Dewpt          8  9  6    8  8  8  3    0  0 -1 -2   -5 -1 -2 -7   -8 -2  0
PWind dir        NW      SW    NW      NW    NW      NW    NW       W    NW
Wind char        GN      GN    BZ      BZ    BZ      BZ    BZ      GN    GN
Avg clouds    B2 SC SC   B1 B2 OV OV   B2 B2 B2 B2   B1 B1 B1 B1   B1 SC B1
PoP 12hr         30      20    40      30    20      20    20      10     5
Snow           C          S  C  C  C    S  S  S  S    S  S

$$



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