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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
242 AM MDT Wed May 22 2024

MTZ312-222200-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
242 AM MDT Wed May 22 2024

Date             Wed 05/22/24            Thu 05/23/24            Fri 05/24/24
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                      57          37          48          36          64
Temp          45 38 45 52 56 53 47 43 41 38 39 43 45 48 42 38 38 37 46 56 62 64
Dewpt         32 29 33 37 42 42 42 40 38 34 33 32 32 31 31 30 30 29 35 35 35 36
RH            60 70 62 56 59 66 83 89 89 85 79 65 60 51 65 73 73 72 65 45 36 35
Wind dir      SW  S  S SW  N  N  N  N  N  N  N  N  N NW  S  S SW SW SW SW  W  W
Wind spd      10  5  5  6  5 10 13 18 20 21 20 16 10  5  5  9 10 11 16 17 16 13
Clouds        OV OV OV OV OV B2 OV OV OV OV B2 B1 B1 SC SC SC B1 B1 SC SC B1 SC
PoP 12hr                     90          90          80          20          20
QPF 12hr                   0.06        0.56        0.10           0           0
Snow 12hr                 00-00       00-00       00-00
Rain           S  C  C           D     D  D  D  C  C  S  S  S  S        S  S
Rain shwrs              L  D  L     D
Tstms                   S  C  C     S


Date               Sat 05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24
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            41    63      43    63      42    70      45    79
Temp          49   42 59 58 46   43 56 62 48   43 64 70 53   46 72 78
Dewpt         37   33 38 38 35   32 36 35 34   32 36 36 39   35 41 41
PWind dir          SW    SW       W     W      SW    SW      SW    SW
Wind char          GN    GN      GN    BZ      GN    GN      LT    LT
Avg clouds    SC   B1 B1 B2 B1   B1 B1 B1 SC   SC FW SC FW   FW FW FW
PoP 12hr           10    60      50    30      10     5       0     5
Rain                   S          C  C  S
Rain shwrs                L  C
Tstms                     C  C

$$
MTZ303-222200-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
242 AM MDT Wed May 22 2024

Date             Wed 05/22/24            Thu 05/23/24            Fri 05/24/24
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                      53          34          51          35          61
Temp          44 40 47 50 52 49 44 41 37 34 40 46 48 49 42 39 38 36 45 55 60 61
Dewpt         33 35 37 39 41 41 38 36 34 33 33 30 28 29 33 33 34 32 34 36 34 35
RH            65 82 68 66 66 74 79 82 89 96 76 53 46 46 70 79 85 85 65 49 37 38
Wind dir      SW SW  S  N  N  N  N  N  N  N  N  N  N  S  S  W  W  W  W  W  W  W
Wind spd      11  4  4  8 12 16 17 18 16 13 13 12  9  8  8  8  8  9 13 17 19 18
Clouds        OV OV B2 B2 OV OV OV B2 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1
PoP 12hr                    100          80          40          30          20
QPF 12hr                   0.14        0.12        0.01        0.06           0
Snow 12hr                 00-00       00-00       00-00
Rain           S  C  C           L  S     S  S  C  C        S  S        S  S
Rain shwrs              C  D  D                       C  C
Tstms                   S  S  C                       S  S


Date               Sat 05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24
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            39    60      40    62      40    68      43    75
Temp          46   40 55 57 44   40 57 60 46   40 63 67 50   44 70 72
Dewpt         35   34 36 34 33   32 35 34 34   32 36 35 37   36 39 37
PWind dir           W     W       W     W       W     W      SW    SW
Wind char          GN    GN      BZ    BZ      BZ    GN      GN    GN
Avg clouds    B1   B1 B1 B2 B1   B1 B1 SC B1   SC SC SC SC   SC SC SC
PoP 12hr            5    40      40    20      10     5       0     5
Rain                      C       C  S  S
Rain shwrs                   C
Tstms                        S

$$
MTZ319-222200-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
242 AM MDT Wed May 22 2024

Date             Wed 05/22/24            Thu 05/23/24            Fri 05/24/24
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                      61          37          48          36          65
Temp          46 44 49 56 60 57 49 45 42 39 39 42 46 47 46 41 38 36 44 56 64 66
Dewpt         29 30 33 37 41 41 40 38 36 34 32 30 30 30 30 30 30 30 32 34 34 34
RH            51 57 54 49 49 55 71 76 79 82 76 62 53 51 53 65 73 79 62 43 32 30
Wind dir       E  S  S  W NE  W NW  W  W  W NW NW NW NW SW SW SW  S  S SW  W  W
Wind spd       3  3  4  4  5  8 10 13 13 14 14 13 11  8  6  6  5  5  5  6 10 11
Wind gust                          24 26 27 28 26
Clouds        B2 OV OV OV OV B2 OV OV OV OV OV B2 B1 SC FW FW SC B1 B1 SC SC SC
PoP 12hr                    100         100          90          10          20
QPF 12hr                   0.15        0.97        0.19           0           0
Snow 12hr                 00-00       00-00       00-00
Rain           S  C  C                    D  D  C  C
Rain shwrs              D  D  D  D  D  D                                S  S
Tstms                   S  C  C  S  S  S                                S  S


Date               Sat 05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24
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            43    63      41    64      41    74      47    80
Temp          51   43 58 58 47   41 54 63 49   41 63 73 55   47 72 77
Dewpt         35   35 38 37 33   31 32 33 33   31 36 35 37   36 41 39
PWind dir          SW     W       W     W      SW    SW      SW     S
Wind char          LT    LT      GN    GN      GN    LT      LT    LT
Avg clouds    B1   B1 B2 B2 B1   B1 B1 B1 SC   SC SC FW FW   FW FW SC
PoP 12hr           10    70      50    30       5     5       0     5
Rain                   C          C  C  S
Rain shwrs                L  C
Tstms                     C  C

$$
MTZ326-222200-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
242 AM MDT Wed May 22 2024

Date             Wed 05/22/24            Thu 05/23/24            Fri 05/24/24
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                      60          32          45          28          61
Temp          41 37 46 54 59 54 46 41 37 34 34 37 41 44 39 33 30 28 40 52 59 61
Dewpt         29 27 33 35 40 41 40 37 36 33 32 33 36 35 31 28 27 25 31 35 35 35
RH            62 67 60 48 49 61 79 85 96 96 92 85 82 70 73 82 88 88 70 52 40 38
Wind dir       S  S  S SW SW NW  W NW  W SW  W  W  W  W  S SE  S  S SW  W  W SW
Wind spd       6  5  6  8  5  5  5  5  6  5  8  9  8  6  5  5  5  4  4  5  9 10
Clouds        OV B2 OV OV B2 OV B2 OV OV OV OV OV B2 SC SC SC SC SC FW SC SC SC
PoP 12hr                     90         100         100          20          20
QPF 12hr                   0.09        0.53        0.33           0           0
Snow 12hr                 00-00       00-00           T
Rain              C  C  C                 D  D        S  S
Rain shwrs                 L  D  L  D  D        D  D                    S  S
Snow                                      D  D
Tstms                      C  C  S  S  S        S  S                    S  S
Obvis                                  F  F
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y


Date               Sat 05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24
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    62      36    60      36    70      41    78
Temp          45   37 58 58 43   37 50 59 43   36 60 69 50   41 68 76
Dewpt         35   31 38 39 36   32 33 33 33   30 36 36 38   33 41 42
PWind dir           S    SW       W     W      SW    SW       S    SW
Wind char          LT    LT      LT    GN      LT    LT      LT    LT
Avg clouds    SC   B1 B1 B2 B2   B2 B1 B1 SC   SC FW FW FW   FW FW FW
PoP 12hr           10    70      60    40       5     5       5     5
Rain                   S             C
Rain shwrs                L  L    C     C
Tstms                     C  C    S     S

$$
MTZ330-222200-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
242 AM MDT Wed May 22 2024

Date             Wed 05/22/24            Thu 05/23/24            Fri 05/24/24
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                      48          25          41          24          54
Temp          34 31 39 44 47 46 38 33 29 26 29 34 39 40 33 28 26 25 35 47 51 53
Dewpt         23 21 25 28 32 31 33 31 27 24 22 24 27 25 26 25 25 24 27 29 27 27
RH            64 66 57 53 56 55 82 92 92 92 75 66 62 55 75 88 96 96 72 49 39 36
Wind dir      SW SW SW SW SW SW  S SW SW SW SW SW  W NW  W SW  S  S SW SW SW SW
Wind spd       3  5 10 13 11  9  5  5  5  5  5  5  6  5  2  1  1  1  2  6  8  8
Wind gust     17 16 23 28 26 23 17 17 17                                  19 20
Clouds        OV OV OV OV B2 OV OV B2 B2 OV OV OV OV B1 SC SC B1 B1 SC SC SC SC
PoP 12hr                     80          90          80          20          20
QPF 12hr                   0.18        0.21        0.09           0           0
Snow 12hr                     T           1           1
Rain                 C                                S  S
Rain shwrs              L  L  D  D  L              D                    S  S
Snow              S  C                 L  D  D        S  S
Snowshwrs                           L           D  D
Tstms                   S  S  C  S  S           S  S                    S  S
Obvis                                                          F PF
Winter Storm                  W  W  W  W  W  W  W  W


Date               Sat 05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24
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            29    54      28    51      27    61      32    68
Temp          35   29 51 50 36   29 45 50 35   28 54 60 40   33 63 66
Dewpt         28   26 31 30 31   26 27 27 29   25 28 28 32   29 32 30
PWind dir           S     S      SW    SW      SW    SW       S     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   B1 B1 B2 B2   B1 B1 B1 SC   SC FW FW FW   FW FW FW
PoP 12hr           10    60      60    30      10     5       5     5
Rain shwrs                L  L    C     C
Snow                                 C
Snowshwrs                         C
Tstms                     C  C    S     S

$$
MTZ328-222200-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
242 AM MDT Wed May 22 2024

Date             Wed 05/22/24            Thu 05/23/24            Fri 05/24/24
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                      57          30          44          26          59
Temp          42 40 45 54 56 49 41 35 34 31 32 38 42 43 37 33 28 26 36 50 57 59
Dewpt         27 25 28 32 35 40 36 33 31 29 31 33 33 31 30 28 24 23 28 34 30 31
RH            55 55 51 43 45 71 82 92 89 92 96 82 70 62 75 82 85 88 72 54 35 34
Wind dir       S  S  S SW SW NW NE  S  S SW  W  W NW  W  S  S  S  S SW SW SW SW
Wind spd      10 10 12 13 11  8  9 11 11 10 11 11  9  5  5  5  5  6  6  6 10 10
Clouds        OV OV OV B2 OV B2 OV OV OV OV OV B2 B1 SC SC FW SC SC FW FW SC B1
PoP 12hr                    100         100          90          10          10
QPF 12hr                   0.22        0.42        0.14           0           0
Snow 12hr                 00-00           1           1
Rain           S  C  C
Rain shwrs              L  D  D  D  D           C  C
Snow                                   L  D  D
Snowshwrs                           D
Tstms                   C  C  C  S  S           S  S
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y


Date               Sat 05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24
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    59      34    58      35    69      41    76
Temp          43   37 55 55 40   34 50 58 42   35 59 68 49   41 67 75
Dewpt         34   32 36 35 33   28 30 30 31   28 33 33 34   32 37 36
PWind dir           S    SW       W     W      SW    SW       S    SW
Wind char          LT    GN      GN    GN      LT    LT      LT    LT
Avg clouds    B1   B2 B1 B2 B1   B1 B1 SC SC   SC FW FW FW   FW FW FW
PoP 12hr           10    60      50    20       5     5       0     5
Rain                   S             S
Rain shwrs                L  C    C
Tstms                     C  C    S

$$
MTZ305-222200-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
242 AM MDT Wed May 22 2024

Date             Wed 05/22/24            Thu 05/23/24            Fri 05/24/24
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                      57          37          53          36          65
Temp          44 40 48 54 56 54 48 44 41 39 41 49 51 52 46 41 38 37 45 56 62 64
Dewpt         40 36 38 42 43 43 41 40 37 36 34 35 34 34 35 35 34 34 37 38 40 42
RH            86 85 68 64 62 66 77 86 85 89 76 58 52 50 65 79 85 89 73 51 44 45
Wind dir      SE  S  W NE  E NE NE NE NE NE NE  N  N  N  S SE SE  S SW  W  W  W
Wind spd       4  4  3  5  9 11 12 13 12 11 12 13 11  8  5  5  5  5  9 11 11 10
Clouds        B1 B2 B2 B2 B2 OV OV OV B2 B2 B1 B1 B1 B1 SC SC B2 B2 B1 B1 B1 B1
PoP 12hr                     70          70          40          20          40
QPF 12hr                   0.06        0.11        0.02        0.01        0.01
Snow 12hr                 00-00       00-00       00-00
Rain              S  C  C        L  C     C  C  C  C  S  S  S  S
Rain shwrs                 C  L                                         C  C
Tstms                      S  C                                         S  S


Date               Sat 05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24
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            42    67      44    66      44    73      47    80
Temp          49   43 63 63 50   45 58 64 50   44 65 72 54   47 73 76
Dewpt         41   38 42 42 43   40 43 43 42   38 41 43 43   40 46 45
PWind dir          SW    SW       W     W       W    SW      SW    SW
Wind char          LT    GN      GN    GN      GN    GN      LT    LT
Avg clouds    B1   SC SC B1 B2   B2 B1 B1 B1   SC SC FW FW   FW FW FW
PoP 12hr           10    40      40    40      20    10       5     5
Rain                                 C
Rain shwrs                C  C    C     C  S
Tstms                     C  C    S     S  S

$$
MTZ314-222200-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
242 AM MDT Wed May 22 2024

Date             Wed 05/22/24            Thu 05/23/24            Fri 05/24/24
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                      56          34          43          31          60
Temp          39 37 48 54 54 50 45 42 40 37 35 39 41 42 37 33 32 34 47 56 60 58
Dewpt         30 28 33 36 39 41 41 40 38 36 34 35 34 32 31 29 28 30 34 38 37 36
RH            70 70 56 50 57 71 86 93 92 96 96 85 76 67 79 85 85 85 60 51 42 44
Wind dir       S  S  S SW  W NE SE  E NE  N  N  N  N NW NW  S  S SW  W  W  W  W
Wind spd       8  5  4  5  5  5  5  6  8 10 12 13 12 10  6  6  6  6  8  9  9  8
Clouds        B2 OV B2 B2 OV B2 B2 OV OV OV OV B2 B2 B1 SC SC SC B1 SC B1 B1 SC
PoP 12hr                     80          90          90          20          30
QPF 12hr                   0.04        0.57        0.50        0.01           0
Snow 12hr                 00-00       00-00       00-00
Rain                 S                    D  D  D  D  S  S
Rain shwrs              C  L  L  L  D  D                                C  C
Tstms                   S  C  C  S  S  S                                S  S


Date               Sat 05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24
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            38    62      38    58      39    67      43    75
Temp          44   39 59 58 44   39 51 57 44   40 61 66 49   44 71 73
Dewpt         36   32 39 41 38   32 36 39 36   32 37 40 39   35 41 44
PWind dir          SW     W       W     W       W     W      SW    SW
Wind char          LT    LT      GN    GN      GN    GN      LT    LT
Avg clouds    SC   SC B1 B2 B2   B2 B2 B1 SC   SC SC FW FW   FW FW FW
PoP 12hr           10    60      60    50      20    10       5     5
Rain                                 C
Rain shwrs                L  L    C     C  S
Tstms                     C  C    S     S  S

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