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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 Wed May 22 2024

MTZ312-231000-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
228 PM MDT Wed May 22 2024

Date           05/22/24      Thu 05/23/24            Fri 05/24/24            Sat
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          53          36          64          40
Temp          58 53 47 44 40 38 39 45 50 52 44 41 38 37 46 56 61 63 54 48 44 43
Dewpt         43 44 43 41 37 35 33 31 32 31 32 33 31 29 33 34 35 35 37 36 35 34
RH            57 71 86 89 89 89 79 58 50 44 62 73 76 72 60 43 38 35 52 63 70 70
Wind dir       W NE NE NE NE  N  N  N NW  W  S  S SW SW SW  W  W  W  S  S SW SW
Wind spd       5  9 13 20 21 21 18 13  9  5  5  8 10 10 13 14 13 11  6  6  6  6
Clouds        OV OV OV OV OV OV B2 B1 B1 SC B1 SC B1 B1 SC B1 B1 SC SC SC SC SC
PoP 12hr                     90          70          30          30          10
QPF 12hr                   0.48        0.05           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 D     D  L  C        C  C              C  C              S
Rain shwrs     D  D     D
Tstms          C  C     S


Date           05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24  Wed 05/29/24
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          66      44    65      42    73      46    79      51    79
Temp          61 61 50   46 59 63 49   44 64 71 53   48 72 77 59   53 72 75
Dewpt         37 38 37   35 35 33 33   33 35 34 37   36 41 40 43   42 43 40
PWind dir        SW       W     W       W    SW      SW    SW      SW    SW
Wind char        GN      GN    BZ      GN    GN      LT    GN      GN    GN
Avg clouds    SC B1 B2   B1 B1 SC SC   FW FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr         50      40    30      10     5       5     5      10    20
Rain           S     C    C  C  S
Rain shwrs        C                                                       S
Tstms             S                                                       S

$$
MTZ303-231000-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
228 PM MDT Wed May 22 2024

Date           05/22/24      Thu 05/23/24            Fri 05/24/24            Sat
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          54          35          62          38
Temp          52 49 44 41 37 34 42 47 51 51 43 40 38 36 44 55 59 61 52 45 41 40
Dewpt         40 41 38 35 34 33 34 32 31 32 34 35 33 32 35 35 35 36 36 35 36 35
RH            63 74 79 79 89 96 73 56 46 48 70 82 82 85 70 47 40 39 54 68 82 82
Wind dir      NE NE NE  N  N  N  N  N NW SW  N SW  W  W  W  W  W  W  W SW  W  W
Wind spd      13 20 19 16 12 11 11 10  6  6  5  5  6  6 11 16 14 13 10  8  6  6
Clouds        OV OV OV B1 B1 SC SC B1 SC B2 OV B2 B2 B2 B1 B1 B1 SC SC SC B1 SC
PoP 12hr                     90          40          50          40           5
QPF 12hr                   0.08        0.02        0.13           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 L  S           S        C  S  S
Rain shwrs     D  D                    S  C                 C  C
Tstms          S  C                    S  S                 S  S


Date           05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24  Wed 05/29/24
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          64      42    63      40    70      44    76      48    74
Temp          58 60 46   43 57 59 46   41 63 67 51   46 69 73 56   50 68 68
Dewpt         35 34 34   34 33 31 32   32 33 33 36   36 36 37 39   39 37 35
PWind dir         W       W     W       W     W       W    SW      SW    SW
Wind char        GN      BZ    BZ      BZ    GN      GN    GN      GN    BZ
Avg clouds    B1 B1 B1   B1 B1 SC SC   FW FW FW SC   SC SC SC SC   B1 B1 SC
PoP 12hr         30      30    20       5     5       0     5      10    10
Rain              C  C    S  S  S

$$
MTZ319-231000-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
228 PM MDT Wed May 22 2024

Date           05/22/24      Thu 05/23/24            Fri 05/24/24            Sat
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          55          36          67          43
Temp          53 50 46 43 39 37 39 44 51 53 48 44 39 37 45 57 64 66 58 49 47 44
Dewpt         37 37 37 36 34 32 33 32 31 31 32 32 31 30 32 35 33 33 34 34 34 34
RH            54 61 71 76 82 82 79 62 46 43 54 62 73 75 60 43 31 29 40 56 60 68
Wind dir       W  N  W  W NW NW NW  N NW  W SW SW  S  S SW  W  W  W SW SW SW SW
Wind spd       3  9 10 12 13 16 16 13 10  6  5  6  5  5  4  6  9 10  5  4  3  2
Wind gust                 25 28 29 26
Clouds        OV OV OV OV OV OV OV B1 B1 SC SC SC SC SC SC SC SC SC SC SC B1 B1
PoP 12hr                    100          90          10          20          20
QPF 12hr                   0.76        0.13           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                          D  L  S                             S  S        S
Rain shwrs     D  D  D  D  D                                S  S
Tstms          C  C  S  S  S                                S  S


Date           05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24  Wed 05/29/24
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          65      44    66      42    74      47    81      52    80
Temp          60 61 50   45 58 62 50   44 64 71 56   49 72 76 60   53 72 74
Dewpt         37 36 34   33 33 30 32   32 35 33 37   35 41 38 41   40 42 39
PWind dir         W       W     W       W     W      SW     S      SW    SW
Wind char        LT      GN    GN      GN    LT      LT    LT      LT    LT
Avg clouds    B1 B2 B1   B1 B1 SC SC   FW SC FW FW   FW FW FW SC   SC SC SC
PoP 12hr         60      50    20       5     5       0     5      10    20
Rain           S     C    C  S  S
Rain shwrs        L                                                       S
Tstms             S                                                       S

$$
MTZ326-231000-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
228 PM MDT Wed May 22 2024

Date           05/22/24      Thu 05/23/24            Fri 05/24/24            Sat
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          49          28          63          37
Temp          52 48 42 39 37 34 34 37 44 47 41 34 31 29 40 52 59 62 51 45 41 39
Dewpt         34 36 37 35 35 32 33 33 35 33 32 30 27 25 30 36 36 36 36 35 35 34
RH            50 63 82 85 92 92 96 85 70 58 70 85 85 85 67 54 42 38 56 68 79 82
Wind dir       S  W  W  W  W  W NW NW NW  W  S SE SE SE SW  W  W  W  S SE SE SE
Wind spd       5  5  5  5  5  5  6  9  8  6  4  5  5  5  3  4  8  8  4  4  4  3
Clouds        B2 OV OV B2 OV OV OV OV B2 SC FW FW SC FW FW SC SC SC B1 B1 B1 B1
PoP 12hr                    100         100          10          20          10
QPF 12hr                   0.37        0.34           0           0           0
Snow 12hr                 00-00           T       00-00
Rain                          D  D  D  C                                      S
Rain shwrs     C  D  D  D  D                                S  S
Snow                          D  D
Snowshwrs                  D
Tstms          C  C  S  S  S                                S  S
Winter Weath            Y  Y  Y  Y  Y  Y


Date           05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24  Wed 05/29/24
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          63      38    63      37    70      42    77      47    77
Temp          57 59 46   40 54 60 47   38 60 68 51   44 68 75 56   49 70 70
Dewpt         39 39 39   36 36 35 35   32 37 35 37   36 41 40 41   41 45 44
PWind dir        SW      SW     W      SW     W      SE    SW      SE    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B2 B2   B2 B1 B1 SC   SC FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr         70      60    40      10     5       5    10      10    20
Rain           S          C  C
Rain shwrs        L  L          C                                         S
Tstms             C  S          S                                         S

$$
MTZ330-231000-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
228 PM MDT Wed May 22 2024

Date           05/22/24      Thu 05/23/24            Fri 05/24/24            Sat
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                      25          43          24          54          29
Temp          40 38 33 30 29 26 29 36 40 42 35 28 26 25 35 47 52 53 42 35 32 30
Dewpt         29 28 28 27 27 24 22 26 27 26 28 26 25 24 27 29 28 26 28 29 28 27
RH            64 67 82 88 92 92 75 67 59 53 75 92 96 96 72 49 39 35 57 78 85 88
Wind dir      SW SW SW  S SW SW SW SW NW NW SW SW  S  S SW SW SW SW  S SE SE SE
Wind spd      12  9  5  6  5  5  5  5  6  5  2  1  1  1  2  6  8  6  3  2  2  2
Wind gust     27 23 18 19 17                                  18 18
Clouds        B2 OV OV B2 OV OV OV OV OV B1 SC FW SC SC SC SC SC SC SC B1 B1 B1
PoP 12hr                     90          90          10          20          10
QPF 12hr                   0.22        0.08           0           0           0
Snow 12hr                     1           1       00-00
Rain                                                                          S
Rain shwrs     L  D  D                 D                    S  S
Snow                       D  D  D
Snowshwrs            D  L           D  D
Tstms          S  C  S  S           S  S                    S  S
Obvis                                           F  F  F
Winter Storm      W  W  W  W  W  W  W  W


Date           05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24  Wed 05/29/24
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          55      32    53      29    63      33    68      38    70
Temp          52 51 38   33 47 51 37   30 56 60 41   34 63 65 46   39 66 67
Dewpt         31 30 33   31 30 28 30   27 31 30 32   30 31 28 36   34 34 32
PWind dir         S      SW    SW      SW    SW       S     S       S     S
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B2 B2   B2 B1 B1 SC   SC FW FW FW   FW FW FW FW   FW FW SC
PoP 12hr         60      70    40      10     5       5    10       5    20
Rain           S     L    C  C  C
Rain shwrs        L                                                       S
Snow                         C
Tstms             C                                                       S

$$
MTZ328-231000-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
228 PM MDT Wed May 22 2024

Date           05/22/24      Thu 05/23/24            Fri 05/24/24            Sat
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                      30          47          26          60          36
Temp          54 47 39 34 31 30 32 38 44 46 39 34 30 27 38 51 58 59 49 43 40 38
Dewpt         34 37 34 31 28 27 29 33 33 31 32 30 26 24 30 35 31 31 34 34 33 33
RH            46 68 82 89 88 88 88 82 65 55 76 85 85 88 73 54 36 34 56 70 76 82
Wind dir       S  W NW  N SW SW  W  N NE SW SW  S  S  S SW SW SW SW SE  S  S  S
Wind spd      11  8  9 12 11 10 11 11  9  6  4  5  5  6  6  8 10  9  5  5  4  5
Clouds        OV OV OV OV OV OV OV OV B1 B1 FW FW FW FW FW FW SC B1 B1 B2 B2 B1
PoP 12hr                     90         100           5          10          10
QPF 12hr                   0.50        0.15           0           0           0
Snow 12hr                     1           1       00-00
Rain                                L  C                                      S
Rain shwrs     D  D  D  D
Snow                       D  D  D  L
Snowshwrs            D  D
Tstms          C  C  S  S
Winter Weath            Y  Y  Y  Y  Y  Y


Date           05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24  Wed 05/29/24
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          60      37    61      36    70      42    76      47    78
Temp          56 57 43   38 53 59 43   37 60 68 49   43 67 73 55   48 71 73
Dewpt         36 35 36   34 34 31 33   31 35 31 36   34 38 35 40   38 41 36
PWind dir        SW       W    SW      SW    SW       S    SW       S    SW
Wind char        LT      GN    GN      LT    LT      LT    LT      GN    GN
Avg clouds    B1 B2 B1   B1 B1 SC SC   FW FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr         60      50    20       5     0       0     5       5    10
Rain           S     C    C  S
Rain shwrs        L
Tstms             C

$$
MTZ305-231000-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
228 PM MDT Wed May 22 2024

Date           05/22/24      Thu 05/23/24            Fri 05/24/24            Sat
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          55          36          65          41
Temp          59 56 51 46 43 39 41 49 52 53 46 41 39 36 45 58 63 61 54 47 45 42
Dewpt         46 45 41 39 37 36 34 33 33 33 34 34 34 33 37 41 42 41 43 41 40 39
RH            62 66 68 76 79 89 76 54 48 46 63 76 82 89 73 53 46 48 66 79 82 89
Wind dir       E NE NE NE NE NE NE  N  N NW  S  S SW SW  W  W  W  W  S  S  S  S
Wind spd      10 13 13 13 12 10 11 12 10  6  4  5  4  5  8 10 10  9  5  5  5  5
Clouds        B2 B2 OV B2 OV B2 B1 SC B1 SC SC B1 B2 B2 B1 B1 B1 B1 SC SC SC SC
PoP 12hr                     70          30          30          50          10
QPF 12hr                   0.05           0        0.01        0.02           0
Snow 12hr                 00-00       00-00       00-00
Rain                 L  C  S  C           S  S  C  C
Rain shwrs     C  L                                         C  C
Tstms          S  C                                         S  S


Date           05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24  Wed 05/29/24
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          68      45    69      43    73      47    80      52    79
Temp          63 65 52   46 62 64 52   44 66 71 55   48 72 76 60   53 73 74
Dewpt         41 41 42   38 39 39 39   37 40 38 41   39 43 43 45   44 45 43
PWind dir        SW      SW     W       W     W      SW    SW      SW    SW
Wind char        LT      GN    GN      GN    GN      GN    LT      GN    GN
Avg clouds    SC B1 B1   B1 SC B1 SC   SC FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr         40      40    30      10     5       0     5      10    20
Rain                 C    S  S  C                                         S
Rain shwrs        C
Tstms             S

$$
MTZ314-231000-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
228 PM MDT Wed May 22 2024

Date           05/22/24      Thu 05/23/24            Fri 05/24/24            Sat
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          47          31          60          37
Temp          56 52 45 42 39 36 35 38 44 46 40 35 34 32 44 54 58 59 50 43 40 40
Dewpt         41 42 42 40 38 35 35 34 34 32 32 31 29 28 32 36 36 37 38 35 34 33
RH            57 69 89 93 96 96100 85 68 58 73 85 82 85 62 50 44 44 63 73 79 76
Wind dir       W NE NE  E NE NE  N  N NW NW  W  S  S SW  W  W  W NW  S  S  S  S
Wind spd       4  5  6  9 10 11 13 14 13 11  5  5  5  6  8  9  9  8  5  5  5  5
Clouds        OV B2 OV OV OV OV OV OV B2 B1 FW FW SC SC SC B1 B1 SC SC SC SC SC
PoP 12hr                     90          90          10          40          20
QPF 12hr                   0.48        0.35        0.01        0.01           0
Snow 12hr                 00-00       00-00       00-00
Rain                          D  D  C  S
Rain shwrs     C  D  D  D  D                                C  C  S  S
Tstms          C  C  S  S  S                                S  S  S  S


Date           05/25/24  Sun 05/26/24  Mon 05/27/24  Tue 05/28/24  Wed 05/29/24
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          63      40    62      39    68      44    76      49    75
Temp          60 59 46   42 56 59 46   41 62 66 49   46 70 73 55   51 70 70
Dewpt         37 40 39   36 36 35 35   32 35 36 37   36 40 41 42   40 43 44
PWind dir         W       W     W       W     W      SW    SW       S    SW
Wind char        LT      GN    GN      GN    GN      LT    LT      LT    GN
Avg clouds    B1 B2 B2   B1 B1 B1 B1   SC FW FW FW   FW FW FW SC   SC SC B1
PoP 12hr         60      60    50      20     5       5    10      10    20
Rain                      C  C     S
Rain shwrs        L  L          C                                         S
Tstms             C  S          S                                         S

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