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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
228 PM MDT Fri Apr 20 2018

MTZ012-211100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
228 PM MDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      39          63          32          57          34
Temp          61 63 52 43 40 40 53 61 63 59 46 39 34 33 43 51 55 57 47 39 38 34
Dewpt         27 30 35 34 31 34 39 38 31 29 30 29 27 28 30 25 18 23 29 29 31 29
RH            27 29 52 70 70 79 59 42 30 32 53 67 75 82 60 36 23 27 49 67 76 82
Wind dir       W SW SE  S SW  S SW SW  W  W  W  W SW SW SW  W NW  N NE NE NE NE
Wind spd       9  8  8  8 10 11 16 21 31 29 20 16 14 16 12  9  9  9 10  9 10  9
Wind gust     19                   32 44 42
Clouds        CL FW FW FW FW B1 B2 SC FW FW FW FW FW SC FW SC SC SC SC B2 B2 OV
PoP 12hr                      0           5           0           0          30
QPF 12hr                      0           0           0           0        0.03
Snow 12hr                 00-00       00-00       00-00
Rain                                                                    C  C  C
Snow                                                                       C  C


Date           04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          49      28    61      36    63      33    65      36    65
Temp          44 49 35   30 52 60 41   39 59 60 41   34 57 63 43   38 61 61
Dewpt         27 26 29   25 29 29 32   32 36 31 33   28 32 28 33   31 38 33
PWind dir        NE       E     S       S     W       W     S       S    SW
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 B2 B1   FW CL FW FW   SC SC SC SC   FW FW FW FW   FW FW FW
PoP 12hr         40       5     0       0     5       5     5       5     5
Rain           C  C
Snow           C

$$
MTZ010-211100-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
228 PM MDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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          54          30          53          30
Temp          61 59 49 42 38 38 45 53 54 50 40 35 32 31 41 48 52 52 43 37 34 30
Dewpt         31 28 39 35 33 34 37 34 31 26 31 27 26 25 29 24 24 24 30 28 29 26
RH            32 30 68 76 82 85 73 48 41 39 70 72 78 78 62 39 33 33 60 70 82 85
Wind dir       W  W  W SW SW SW SW SW  W  W  W  W  W  W  W NW NW  N  N NE  N  N
Wind spd      16 11  9  8  8 10 17 35 46 40 26 20 16 20 12 10 10 10  8  8  8  6
Wind gust                          51 67 59
Clouds        FW FW SC SC SC B2 B2 SC FW FW FW FW FW SC SC SC B1 B1 B1 B2 B1 B2
PoP 12hr                      0          10           0           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                                          S
High Wind                        A  A  A  A


Date           04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          51      27    64      35    62      32    66      35    65
Temp          45 51 35   29 55 62 41   37 57 60 41   34 59 64 42   38 60 62
Dewpt         23 24 27   24 29 29 32   31 34 33 33   29 32 32 34   33 39 36
PWind dir         N       W     S      SW    NW       W    SW      SW    NW
Wind char        LT      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 SC SC   CL CL FW FW   SC SC SC FW   FW FW FW FW   FW FW FW
PoP 12hr         20       0     0       0     5       5     5       5     5
Snow           S

$$
MTZ014-211100-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
228 PM MDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      39          63          36          61          37
Temp          61 62 53 45 42 39 49 60 63 60 49 42 39 36 44 53 58 61 51 45 42 37
Dewpt         30 28 34 33 34 33 39 36 34 31 30 27 28 28 30 29 25 27 30 32 33 30
RH            31 27 48 62 73 79 68 41 34 33 48 55 64 72 57 39 28 27 44 60 70 75
Wind dir      NW NW  W SW SW SW  W  W  W  W NW  W  W SW  W  W NW  N  N  N  N  N
Wind spd      10 10  5  4  4  4  5 12 18 21 17  9  5 10  6  6  8  8  6  5  8  9
Wind gust     21                         32
Clouds        CL FW CL FW FW B1 B2 SC SC FW FW FW SC SC SC SC SC B1 B1 B2 B2 OV
PoP 12hr                      0           5           0           5          40
QPF 12hr                      0           0           0           0        0.16
Snow 12hr                 00-00       00-00       00-00
Rain                                                                    C  C  C
Snow                                                                          C


Date           04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          49      27    57      33    62      34    63      36    66
Temp          43 49 35   28 48 56 40   34 56 60 42   35 55 62 44   38 62 62
Dewpt         30 30 28   23 30 29 32   28 36 31 33   27 34 29 33   30 39 33
PWind dir         N      NW     S       S     W      NW     S      SW     W
Wind char        GN      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B2 B2   FW FW FW FW   SC SC SC SC   FW FW FW FW   FW FW FW
PoP 12hr         50      10     0       0    10      10    10       5     5
Rain           C  C
Snow           C

$$
MTZ055-211100-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
228 PM MDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      32          64          33          61          37
Temp          58 60 49 40 35 33 46 57 61 63 50 41 35 34 42 51 57 61 50 44 41 40
Dewpt         33 31 35 33 30 29 37 34 32 33 35 31 28 29 31 30 27 31 34 36 36 35
RH            39 33 58 76 82 85 71 42 33 32 56 67 75 82 65 44 31 32 54 73 82 82
Wind dir       N  N SE  S  S SE  S  W  W  W NW NW NW  E NW NW NW  N  E  N NE  N
Wind spd       9  6  5  5  5  5  5  6 13 18 16  9  8  9  4  5  6  8  6  5  6  6
Wind gust     21
Clouds        CL FW CL CL CL CL SC B1 FW SC SC SC SC SC FW SC SC SC B1 B2 B2 OV
PoP 12hr                      0           0          10          10          50
QPF 12hr                      0           0           0           0        0.12
Snow 12hr                 00-00       00-00       00-00
Rain                                                              C  C  C  C  L


Date           04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          46      23    54      30    60      32    61      33    64
Temp          40 45 32   24 45 53 36   32 53 58 39   33 52 60 40   35 57 62
Dewpt         30 31 27   20 30 28 28   26 34 32 32   28 31 30 31   29 38 32
PWind dir        NE       E    SE      SE    SW       N    SW       S    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV OV B2   SC FW FW FW   FW SC SC SC   FW FW FW FW   FW FW FW
PoP 12hr         60      20     5       0    10      10    10      10    10
Rain           L  L  S
Snow           L  L  S

$$
MTZ055-211100-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
228 PM MDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      21          52          27          53          32
Temp          48 48 38 30 24 21 31 45 50 52 42 38 32 27 36 47 51 52 42 37 33 32
Dewpt         28 25 28 27 22 20 27 23 30 30 31 34 30 26 30 22 25 26 25 32 30 31
RH            46 40 67 88 92 96 85 41 46 43 65 85 92 96 79 37 36 36 50 82 89 96
Wind dir       N  N  N  S  S SE  S SW SW SW  S  S  S  S  S SW SW SW  S NE SE  S
Wind spd      14 10  4  3  2  3  3  9 13 12  6  5  4  5  4  9 11 10  3  2  2  2
Clouds        FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC FW FW SC SC B2 B2 OV
PoP 12hr                      0           0           0           0          60
QPF 12hr                      0           0           0           0        0.09
Snow 12hr                 00-00       00-00       00-00
Rain                                                              C  C  L  L
Snow                                                                          L


Date           04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          42      19    48      24    53      26    56      28    59
Temp          38 41 27   20 41 47 33   25 48 51 35   27 51 53 36   29 52 57
Dewpt         31 29 23   18 19 21 26   22 27 31 30   23 24 31 28   25 30 38
PWind dir        NW       N    NE       E    SW       N     E      SW     S
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV B2 B2   B1 SC FW FW   FW SC SC SC   SC FW FW FW   FW FW FW
PoP 12hr         60      20     5       0     5      10     5       5     5
Rain           L
Snow           L  C  S

$$
MTZ008-211100-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
228 PM MDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      32          63          31          60          35
Temp          58 58 47 41 35 33 43 54 62 61 49 40 34 31 36 48 58 59 50 43 37 35
Dewpt         28 23 30 31 29 28 36 26 29 28 34 30 29 28 31 27 23 27 33 35 33 32
RH            32 26 51 67 78 82 76 34 28 28 56 67 82 88 82 44 26 29 52 73 85 89
Wind dir       N  N  E  S  S  S SW SW SW  W  N NE NE  E  W SW  W  N NE NE  N  N
Wind spd      14 11  8  6  8  9  8 13 18 19 12  9  6  9  5  8 10 10 10  9 10  8
Clouds        CL CL CL CL FW SC B1 FW FW FW FW SC SC SC FW FW SC B1 B1 B2 B2 OV
PoP 12hr                      0           0           0           5          60
QPF 12hr                      0           0           0           0        0.27
Snow 12hr                 00-00       00-00       00-00
Rain                                                              C  C  L  L  L
Snow                                                                          L


Date           04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          46      25    51      29    58      30    60      32    63
Temp          42 44 31   26 42 51 35   30 49 57 38   31 49 59 40   33 54 62
Dewpt         34 26 25   22 28 23 25   24 27 24 28   25 27 23 28   27 34 33
PWind dir         N      NE    NE       S    SW      NE     S      SW    SW
Wind char        GN      GN    LT      GN    LT      GN    LT      GN    LT
Avg clouds    B2 B2 B2   SC FW FW FW   FW SC SC SC   SC FW FW FW   FW FW FW
PoP 12hr         60      10     5       0     5      10     5       5     5
Rain           L  C
Snow           L

$$
MTZ011-211100-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
228 PM MDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      34          64          32          55          32
Temp          59 62 48 38 35 35 43 58 64 60 45 39 35 32 42 50 52 55 44 37 33 32
Dewpt         43 40 41 33 31 33 37 43 47 40 37 31 30 28 33 33 34 32 35 29 27 28
RH            55 44 77 82 85 92 79 57 54 47 73 73 82 85 70 52 50 41 70 72 78 85
Wind dir       W SW SE SE SE  S SW  W SW  W  W  W  W SW  W  W  W NW  N NE NE  N
Wind spd       9  8  6  6  5  8 11 17 24 33 26 17 16 16 12 11 11 10  8  9  9  8
Wind gust     21                      34 50
Clouds        CL CL CL FW FW B1 B1 B2 SC SC SC FW FW FW FW SC SC SC SC B1 B1 B2
PoP 12hr                      0          20          10           0          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                                                          S


Date           04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          53      27    60      35    63      34    65      38    67
Temp          48 53 35   29 52 59 41   37 57 61 40   36 58 63 45   40 61 65
Dewpt         34 33 28   25 37 40 35   33 42 42 34   33 44 42 39   36 47 46
PWind dir         N      NW     S       S     W      NW    SW       S    SW
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 B1 SC   FW CL FW FW   SC SC SC FW   FW FW FW FW   FW FW FW
PoP 12hr         20       0     0       0     5       5     5       5     0
Rain           S
Snow           S

$$
MTZ051-211100-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
228 PM MDT Fri Apr 20 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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          64          32          56          33
Temp          61 60 51 43 39 38 53 62 64 60 49 39 34 33 44 52 55 55 45 39 37 33
Dewpt         37 38 41 39 35 34 40 35 35 36 35 30 28 27 27 26 25 29 34 32 33 30
RH            41 44 68 86 85 85 61 36 34 41 58 70 78 78 51 36 31 37 65 76 85 89
Wind dir       N NE SE SE SE  S  S  W  W NW NW  W  W SW  W NW NW  N NE  E  E NE
Wind spd      10  8  6  6  6  6  9 10 13 16 17 12 11  9  9  8  9  9  8  5  9  9
Wind gust     21
Clouds        FW FW CL CL CL CL SC B1 SC B1 SC FW FW SC SC SC SC SC SC B2 B2 OV
PoP 12hr                      0           5          10           5          40
QPF 12hr                      0           0           0           0        0.09
Snow 12hr                 00-00       00-00       00-00
Rain                                                                    C  C
Snow                                                                       C  C


Date           04/23/18  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          44      25    55      32    61      30    60      35    61
Temp          38 44 31   27 49 53 37   35 58 55 37   32 55 57 41   37 58 56
Dewpt         28 29 27   23 28 30 30   29 35 34 31   27 34 33 34   30 38 37
PWind dir         N       W    SW       S     W       W    SW       S     W
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    OV B2 B2   FW FW FW FW   FW SC SC SC   FW FW FW FW   FW FW FW
PoP 12hr         50      10     0       0     5      10     5       5     5
Rain              C
Snow           C  C

$$
http://www.weather.gov/greatfalls




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