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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
303 AM MDT Thu Apr 18 2024

MTZ312-182200-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
303 AM MDT Thu Apr 18 2024

Date             Thu 04/18/24            Fri 04/19/24            Sat 04/20/24
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      39          18          38          20          52
Temp             18 25 32 36 36 29 22 20 18 24 29 35 37 31 27 24 23 31 40 47 50
Dewpt            14  9 11 13 12 10  9 10 10 15 11 12 13 14 15 15 15 16 15 18 18
RH               84 50 41 38 36 44 57 64 70 68 46 38 37 49 60 68 71 53 36 31 28
Wind dir          W  W NW  N  N  N NE  N NW  N  N  N NE NE  E  E  E SE  E  E  E
Wind spd          6  9 10 10 12 10 10  4  5  8  9  8 10  8  5  4  4  5  6  8  9
Clouds           SC SC B1 B1 SC SC SC SC SC B1 B2 B2 B1 SC FW FW FW FW FW FW FW
PoP 12hr                      5           5          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            32    57      35    57      33    64      38    68
Temp          36   35 52 52 41   37 51 54 41   36 55 62 47   40 60 65
Dewpt         24   23 25 22 24   25 26 22 28   27 28 27 32   31 34 33
PWind dir          SE    SW       W     W       E    SE      SE     W
Wind char          LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW   SC B1 B1 SC   B1 B1 SC SC   SC SC SC SC   B1 B1 B1
PoP 12hr           10    30      20    10       0     0      10    20
Rain                   C  C  S    S                                 S
Snow                              S

$$
MTZ303-182200-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
303 AM MDT Thu Apr 18 2024

Date             Thu 04/18/24            Fri 04/19/24            Sat 04/20/24
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      36          17          36          20          47
Temp             16 23 31 34 34 23 19 17 17 22 29 34 35 29 25 23 22 28 38 44 46
Dewpt            10  8 13 14 14  7  7  9 12 15 12 12 14 15 16 15 16 16 15 15 16
RH               77 52 47 43 43 50 59 70 80 74 48 39 41 55 68 71 77 60 38 30 29
Wind dir         NW NW NW  N  N  N  N NW NW  N  N  N NE NE  E SE SE SE SE SE SE
Wind spd         10 13 18 19 21 12 10  9 10 11 11 10 10  6  5  5  4 10 13 16 14
Clouds           SC SC SC B1 FW SC FW SC B1 B1 B2 B2 B2 B1 SC FW FW FW FW FW FW
PoP 12hr                      5           5           5           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            28    52      33    55      30    61      34    64
Temp          32   31 48 49 37   34 49 52 37   32 53 59 42   36 56 61
Dewpt         19   23 23 22 25   26 26 24 28   27 27 25 29   29 31 29
PWind dir          SE     W       W    NW       W     S      SE    SW
Wind char          GN    BZ      BZ    BZ      GN    GN      GN    GN
Avg clouds    FW   SC B1 SC B1   B1 B1 SC SC   SC SC SC SC   B1 B1 B1
PoP 12hr            5    20      10    10       0     0       5    10
Rain                   S  S
Snow                   S

$$
MTZ319-182200-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
303 AM MDT Thu Apr 18 2024

Date             Thu 04/18/24            Fri 04/19/24            Sat 04/20/24
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      42          22          43          24          56
Temp             23 27 35 40 40 33 28 25 22 26 34 39 42 34 30 27 24 31 42 51 55
Dewpt            13 14 15 16 16 14 14 12 12 12  9 10 14 14 15 15 15 16 18 19 19
RH               65 57 43 37 37 45 55 57 65 55 35 30 31 43 53 60 68 53 37 28 24
Wind dir          W  N  N  N  N  N NW NW NW  N  N  N  N  N  N  N NE  E  E  E  E
Wind spd          2  2  5  9 13 11 10 10  8  8 10 12 13 10  5  4  2  4  6  8 10
Clouds           FW FW SC SC SC B1 B1 B1 B1 SC SC FW FW FW FW FW FW FW FW FW FW
PoP 12hr                     10          10           5           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            36    58      34    59      33    66      40    70
Temp          41   36 51 54 41   34 50 57 42   33 55 65 48   40 59 66
Dewpt         24   26 29 24 24   24 25 24 26   26 30 27 31   30 35 34
PWind dir          SE     W       W     W       W    SE       S     N
Wind char          LT    GN      GN    GN      GN    LT      GN    LT
Avg clouds    FW   SC B1 B1 FW   SC SC SC SC   SC SC SC SC   B1 B1 B1
PoP 12hr           10    30      10    10       0     5      10    30
Rain                   C  C                                         C

$$
MTZ326-182200-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
303 AM MDT Thu Apr 18 2024

Date             Thu 04/18/24            Fri 04/19/24            Sat 04/20/24
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      42          19          44          19          54
Temp             20 24 33 39 41 32 26 23 19 24 34 41 44 33 28 24 21 29 41 50 53
Dewpt            15 14 15 15 15 16 17 14 13 13 12 13 14 15 15 15 14 16 19 21 21
RH               81 65 47 37 34 51 68 68 77 62 39 31 29 47 58 68 74 58 41 31 28
Wind dir          S  S NW NW  N  N NW  W  S  W  N  N  E  E  E  E  E  E  E  E  E
Wind spd          4  2  4  6  8  9  8  6  5  4  4  5 10 12 10  8  5  5  3  4  6
Clouds           FW FW FW FW SC B1 B1 OV B2 B1 SC SC SC FW FW FW FW FW FW FW FW
PoP 12hr                     10          10           5           0           0
QPF 12hr                      0        0.01           0           0           0
Snow 12hr                 00-00           T       00-00


Date               Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            31    60      29    57      29    64      35    69
Temp          37   33 50 55 38   31 47 54 38   31 53 62 44   37 59 64
Dewpt         25   25 32 29 26   23 25 22 26   24 29 29 32   30 36 34
PWind dir           E     W       W     W       E     E       E    SW
Wind char          LT    GN      GN    GN      GN    LT      GN    LT
Avg clouds    FW   SC B2 B2 B1   SC SC SC SC   SC SC SC B1   B1 B1 B1
PoP 12hr            5    40      30    10       0     5      10    30
Rain                   S  C  C
Rain shwrs                                                          C
Tstms                                                               S

$$
MTZ330-182200-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
303 AM MDT Thu Apr 18 2024

Date             Thu 04/18/24            Fri 04/19/24            Sat 04/20/24
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      36          10          42          12          51
Temp              8 15 31 36 34 24 18 14 11 19 37 42 40 28 21 17 14 25 44 50 49
Dewpt             5  5  9 10  9 11 12 10  8 10 14 14 15 15 14 12 10 14 19 18 20
RH               87 64 39 33 35 57 77 84 87 67 38 31 36 58 74 80 84 62 36 28 31
Wind dir          E  N  E SW SW  S  E NE  E NE NE  N  N NE NE NE  E  N SW  W SW
Wind spd          2  0  2  5  6  5  3  3  3  5  4  5  6  6  5  4  3  0  3  8 10
Clouds           FW FW FW FW SC SC SC FW B1 SC SC SC FW FW FW FW FW FW FW SC FW
PoP 12hr                      5          10          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            25    55      22    51      21    59      29    60
Temp          30   27 50 49 33   25 44 47 30   23 52 54 36   30 56 55
Dewpt         22   21 30 28 24   20 19 20 21   17 21 23 28   26 31 31
PWind dir           S    SW       W     W       S     S      SE     S
Wind char          LT    GN      GN    GN      LT    LT      LT    GN
Avg clouds    FW   SC B2 B1 B1   SC SC FW SC   SC SC SC SC   SC B1 B1
PoP 12hr            5    50      30    10       0    10      20    40
Rain                   S  C  C                           S       S  C
Snow                   S

$$
MTZ328-182200-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
303 AM MDT Thu Apr 18 2024

Date             Thu 04/18/24            Fri 04/19/24            Sat 04/20/24
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      41          19          43          22          55
Temp             18 23 32 39 39 32 27 22 20 23 33 40 42 33 28 26 23 29 42 51 54
Dewpt            14 15 15 15 14 16 18 15 14 14 13 13 13 15 15 16 15 16 18 19 21
RH               84 71 49 37 35 51 68 74 77 68 43 33 30 47 58 65 71 58 37 28 27
Wind dir          S  W NW SW NW NE NE NE NE NE NE NE NE NE NE NE NE NE  N NW  N
Wind spd          5  4  4  5  5 10 10 11  9  9 10  9 12  9  6  6  6  5  4  5  5
Clouds           FW FW FW FW SC B1 B2 B2 B2 B1 SC FW FW FW SC FW SC FW FW SC SC
PoP 12hr                     10          10           5           0           0
QPF 12hr                      0        0.04           0           0           0
Snow 12hr                 00-00           T       00-00


Date               Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            35    60      29    57      31    64      38    67
Temp          39   35 54 54 37   30 47 54 39   33 53 61 45   40 59 61
Dewpt         25   26 30 22 23   22 20 17 24   23 25 25 30   30 33 31
PWind dir          SE    SW       W     W      NE    SW       E    SW
Wind char          LT    GN      GN    GN      GN    LT      GN    GN
Avg clouds    SC   SC B1 B1 SC   SC FW FW SC   SC SC B1 B1   B1 B1 B1
PoP 12hr            5    30      10     5       0     5      10    20
Rain                   S  C
Rain shwrs                                                          S
Tstms                                                               S

$$
MTZ305-182200-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
303 AM MDT Thu Apr 18 2024

Date             Thu 04/18/24            Fri 04/19/24            Sat 04/20/24
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      39          21          40          20          50
Temp             23 29 36 38 37 27 24 22 22 27 34 38 39 32 27 23 22 31 42 48 50
Dewpt            15 14 13 13 13 11 17 16 17 17 14 15 16 18 19 17 16 18 18 17 17
RH               71 53 38 35 37 50 74 77 81 65 43 38 39 56 71 77 77 58 37 29 27
Wind dir          W NW NW NW NW  N  W NW NW NW  N  N  N NE  E SE SE  E SE SE SE
Wind spd         10 19 21 21 21 12  9  9 10 13 11 10 10  5  5  3  3  4  5  6 10
Clouds           FW CL FW SC SC FW SC B1 B1 B1 B2 B2 B2 B1 FW FW FW CL CL FW FW
PoP 12hr                      0          10           5           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            28    60      34    56      31    64      37    69
Temp          34   30 51 54 40   36 49 54 39   33 56 61 46   39 60 66
Dewpt         20   20 26 27 31   30 32 29 30   28 31 29 31   31 34 34
PWind dir          SE    SW       W    NW      SW    SE       E     E
Wind char          GN    GN      BZ    BZ      GN    GN      GN    GN
Avg clouds    FW   FW B1 B1 B1   B1 B1 SC SC   SC FW SC SC   SC B1 SC
PoP 12hr            0    20      20    20       0     0       5    10
Rain                      S  S    S     S

$$
MTZ314-182200-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
303 AM MDT Thu Apr 18 2024

Date             Thu 04/18/24            Fri 04/19/24            Sat 04/20/24
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      35          15          34          17          46
Temp             18 24 30 34 33 25 20 17 16 21 27 32 33 25 22 20 20 29 39 44 45
Dewpt            14 10 10 12 10  9  8  8 10 13 12 13 14 13 14 14 14 15 16 17 18
RH               84 54 42 39 38 50 59 67 77 71 53 45 45 60 71 77 77 55 39 33 33
Wind dir          W NW NW NW NW NW  W  W  W NW NW  N  N NE SE SE SE SE SE SE SE
Wind spd         14 16 18 18 16 11 10  9 10 10 11 10 10  6  5  5  5  6  8  8  9
Clouds           B1 FW B1 B1 SC SC SC FW B1 B2 B2 B2 B1 SC FW FW FW FW FW FW CL
PoP 12hr                      5           5          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            28    57      32    51      29    59      35    66
Temp          31   32 52 51 36   34 46 49 35   32 53 57 42   38 60 62
Dewpt         20   21 28 27 23   24 27 26 27   25 27 28 30   29 34 35
PWind dir          SE    SW       W    NW       W    SE      SE     E
Wind char          GN    GN      BZ    BZ      GN    GN      GN    GN
Avg clouds    FW   FW B1 B1 B1   SC B1 SC SC   SC SC SC SC   SC B1 B1
PoP 12hr            5    30      30    30       0     0      10    20
Rain                      C  C    S  S  C                           S
Snow                              S  S

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



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