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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
217 PM MDT Mon May 6 2024

MTZ312-071000-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
217 PM MDT Mon May 6 2024

Date           05/06/24      Tue 05/07/24            Wed 05/08/24            Thu
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          46          34          43          37
Temp          59 56 50 46 43 39 43 44 45 42 38 35 35 35 36 38 41 42 40 40 39 39
Dewpt         32 33 27 27 25 22 25 30 31 38 34 35 35 34 36 34 37 38 36 37 36 35
RH            36 42 41 47 49 50 49 57 58 86 85100100 96100 85 85 86 85 89 89 85
Wind dir       W  W  W  W  W  W  W  W  W NW NW NW NW NW NW NW NW NW NW  W  W SW
Wind spd      25 25 18 18 21 21 26 28 27 26 26 29 27 25 21 20 18 14 11 10  6  5
Wind gust              28 32 34 37 40 41 39 37 46 42 37 32 31
Clouds        OV B2 OV OV OV OV B2 OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2
PoP 12hr                     20         100         100         100         100
QPF 12hr                      0        0.25        0.96        0.69        0.18
Snow 12hr                 00-00       00-00       00-00
Rain           S           S  S  C  C  D  D  D  D  D  D  D  D  D  D  D  L  L  S
Snow                          S                 S  D  D
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           05/09/24  Fri 05/10/24  Sat 05/11/24  Sun 05/12/24  Mon 05/13/24
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          58      36    66      41    72      45    75      48    74
Temp          51 58 42   37 59 65 47   42 66 71 51   46 70 73 54   49 68 70
Dewpt         39 47 37   31 38 41 38   33 40 49 41   33 39 47 41   34 37 39
PWind dir        SW       S    SW       S    SW      SW    SW      SW    SW
Wind char        LT      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 SC FW   FW FW FW FW   FW FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr         20       5     0       5    10      10    10      20    20
Rain           S                                                          S
Rain shwrs                                                     S
Tstms                                                          S

$$
MTZ303-071000-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
217 PM MDT Mon May 6 2024

Date           05/06/24      Tue 05/07/24            Wed 05/08/24            Thu
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          45          33          44          33
Temp          56 53 46 44 43 38 39 44 44 41 36 33 33 33 35 39 41 43 39 38 36 35
Dewpt         31 34 28 29 29 26 28 33 33 37 33 33 33 32 35 32 34 37 34 34 33 29
RH            38 48 49 55 57 62 64 65 65 85 89100100 96100 76 76 79 82 85 89 78
Wind dir       W  W  W  W  W  W  W NW NW NW NW NW NW NW NW NW NW NW NW NW NW  W
Wind spd      35 36 28 29 32 32 35 39 39 36 37 37 40 37 33 32 28 23 14 10  9  6
Wind gust           42 44 49 46 49 51 50 50 56 58 59 56 46 44 40 33
Clouds        B2 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B1 B1 B1
PoP 12hr                     20         100         100         100          30
QPF 12hr                      0        0.31        0.61        0.24           0
Snow 12hr                 00-00       00-00           T
Rain                       S  C  C  C  D  D  D  D  D  D  D  D  D  C  C  S  S
Snow                             C              D  D  D  S
High Wind      W  W  W  W  W  W  W  W  W


Date           05/09/24  Fri 05/10/24  Sat 05/11/24  Sun 05/12/24  Mon 05/13/24
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      35    70      44    74      45    73      47    71
Temp          55 62 43   36 63 68 49   44 68 72 53   46 70 71 53   47 65 67
Dewpt         34 45 37   31 33 36 38   33 36 46 42   32 37 45 40   31 34 34
PWind dir        NW       W    SW       W     W       W     W       W     W
Wind char        LT      GN    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    B1 FW FW   FW FW FW FW   FW FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr          5       0     0       5     5      10    10      20    20
Rain                                                                      S
Rain shwrs                                                     S
Tstms                                                          S

$$
MTZ319-071000-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
217 PM MDT Mon May 6 2024

Date           05/06/24      Tue 05/07/24            Wed 05/08/24            Thu
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                      38          49          37          46          39
Temp          56 54 50 45 43 38 40 44 45 43 41 40 38 37 40 42 44 45 44 42 41 40
Dewpt         29 29 26 26 25 21 22 25 26 30 29 32 31 31 34 34 35 35 35 35 34 33
RH            35 38 39 47 49 50 48 47 47 60 62 73 76 79 79 73 70 68 70 76 76 76
Wind dir       W  W  W  W  W  W  W  W  W  W  W  W NW NW NW NW NW NW NW NW NW NW
Wind spd      32 28 27 24 25 26 34 34 34 33 32 31 23 18 17 18 18 13 10  8  5  4
Wind gust     44 42 41 35 37 41 52 51 51 49 47 47 34
Clouds        B2 B2 B2 B2 OV B2 B2 B2 OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B2
PoP 12hr                     10          60         100         100          60
QPF 12hr                      0        0.01        0.19        0.37        0.04
Snow 12hr                 00-00       00-00       00-00
Rain                                S  C  D  D  D  D  D  D  D  D  L  L  C  C
Snow                                S           D  S
High Wind      W  W  W  W  W  W  W  W  W  W  W


Date           05/09/24  Fri 05/10/24  Sat 05/11/24  Sun 05/12/24  Mon 05/13/24
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          62      37    71      44    75      47    78      50    77
Temp          51 61 45   38 60 70 52   44 68 73 56   47 71 74 57   50 70 72
Dewpt         34 42 35   30 34 36 36   33 36 42 40   31 36 42 40   32 35 35
PWind dir         N       W     E      SW     W       W     W       W     W
Wind char        LT      LT    LT      LT    GN      GN    GN      GN    GN
Avg clouds    B2 SC FW   FW FW FW CL   FW FW FW FW   FW FW FW FW   SC SC SC
PoP 12hr         10       0     0       0    10       5    10      10    20
Rain                                                                      S

$$
MTZ326-071000-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
217 PM MDT Mon May 6 2024

Date           05/06/24      Tue 05/07/24            Wed 05/08/24            Thu
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                      33          49          32          45          34
Temp          52 51 45 40 37 35 38 42 44 40 36 34 33 32 34 36 42 44 37 39 36 36
Dewpt         30 30 25 26 24 18 21 23 26 32 29 30 30 32 34 33 38 39 33 35 33 33
RH            43 44 45 57 59 49 50 46 49 73 75 85 89100100 89 86 82 85 85 89 89
Wind dir      NW NW  W  W  W  W  W  W NW NW NW  W  W  W  W NW NW NW NW NW NW  W
Wind spd      26 26 21 18 18 18 26 33 33 31 26 26 20 14 17 17 14 13 11  6  5  3
Wind gust     37 40 33       28 40 46 43 46 39 40 31
Clouds        OV OV B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV OV OV B2
PoP 12hr                      5          50         100         100          80
QPF 12hr                      0        0.05        0.21        0.27        0.07
Snow 12hr                 00-00       00-00           1
Rain                                   S  D  D  D  S  D  D  D  D  D  D  C  C  C
Snow                                   C  D  D  D  D  D  D  S        S


Date           05/09/24  Fri 05/10/24  Sat 05/11/24  Sun 05/12/24  Mon 05/13/24
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          58      32    66      37    72      41    75      42    75
Temp          46 57 40   33 55 65 46   38 63 71 51   42 66 74 52   43 68 71
Dewpt         35 45 34   30 34 37 35   31 34 46 40   30 35 49 42   32 38 40
PWind dir        NW      SE    SW      SE    SW      SE    SW       S    SW
Wind char        LT      LT    LT      LT    LT      LT    GN      GN    GN
Avg clouds    B2 B1 SC   SC FW FW FW   FW FW FW FW   FW FW FW SC   FW FW B1
PoP 12hr         30       5     0       0     5       5    10      10    30
Rain           C
Rain shwrs                                                                C
Tstms                                                                     S

$$
MTZ330-071000-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
217 PM MDT Mon May 6 2024

Date           05/06/24      Tue 05/07/24            Wed 05/08/24            Thu
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                      26          41          27          44          28
Temp          41 40 35 32 29 28 32 39 41 37 31 30 28 28 35 39 41 40 35 32 30 30
Dewpt         27 29 24 26 23 15 18 14 16 25 19 23 21 19 26 23 26 31 26 29 27 23
RH            57 64 64 78 78 58 56 35 36 61 61 75 75 68 69 52 55 70 69 88 88 75
Wind dir       W  W  W SW SW  W  W NW NW NW NW  W  W  W NW NW  N  N  N  N  N  N
Wind spd      17 18 14 10  9 10 14 17 16 18 14 10 10  9 12 11 11 13 11  8  6  6
Wind gust        28
Clouds        B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 OV OV OV OV OV OV B2 B2 B1 B1 B1 B1
PoP 12hr                     30          60          90          80          50
QPF 12hr                      0        0.01        0.05        0.06        0.01
Snow 12hr                 00-00       00-00           1
Rain                             C                             D  C     S
Snow           C           S  C  C  C  C  L  L  D  D  D  D  D  D  C  C  S  S
Snowshwrs         C
Tstms             S
Winter Weath                              Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           05/09/24  Fri 05/10/24  Sat 05/11/24  Sun 05/12/24  Mon 05/13/24
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          54      27    62      29    64      32    65      34    65
Temp          50 52 34   27 55 60 38   29 60 62 41   32 61 61 43   35 62 62
Dewpt         27 36 30   25 25 27 31   25 29 40 34   22 29 40 37   26 31 32
PWind dir        NE      NE     N       W    SW      SW    SW       S    SW
Wind char        GN      GN    LT      LT    LT      LT    GN      LT    GN
Avg clouds    B1 SC FW   FW FW CL CL   FW FW FW FW   FW FW SC SC   SC FW B1
PoP 12hr         10       0     0       0     5       5    20      10    30
Rain shwrs                                                  S             C
Tstms                                                       S             S

$$
MTZ328-071000-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
217 PM MDT Mon May 6 2024

Date           05/06/24      Tue 05/07/24            Wed 05/08/24            Thu
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          46          33          47          34
Temp          50 49 41 36 33 32 35 42 43 40 36 36 35 34 34 41 46 46 40 39 35 34
Dewpt         23 31 24 28 25 15 18 16 18 25 21 25 24 27 28 29 32 35 30 35 33 32
RH            34 50 50 72 72 49 49 34 36 55 54 64 64 75 78 62 58 65 67 85 92 92
Wind dir       W  W  W SW SW SW  W NW NW NW NW SW SW SW  W  N  N  N  N  N  N  N
Wind spd      23 21 13 13 13 12 18 21 24 26 19 17 12 10 12 13 17 18 13  9  8  6
Wind gust     34 34                32 35 40 29
Clouds        B2 B1 SC SC B1 B2 B2 B2 B1 B2 B2 OV OV OV OV OV OV OV B2 B2 B2 B2
PoP 12hr                     10          20          80          80          40
QPF 12hr                      0           0        0.03        0.04           0
Snow 12hr                 00-00       00-00           T
Rain                                      C  C  D        D  C  C  C  C  S
Snow                                      C  C  D  D  D  D                 S


Date           05/09/24  Fri 05/10/24  Sat 05/11/24  Sun 05/12/24  Mon 05/13/24
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          57      34    67      38    72      42    74      44    74
Temp          50 57 40   34 57 66 47   39 65 70 52   42 68 72 53   44 68 71
Dewpt         31 40 33   30 28 29 33   31 29 40 38   28 31 42 40   30 29 31
PWind dir        NE       E    NW      SE     W       W    SW       W    SW
Wind char        GN      GN    LT      LT    GN      GN    GN      GN    GN
Avg clouds    B2 SC FW   FW FW CL CL   FW FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr          5       0     0       0     5       5     5       5    20
Rain                                                                      S

$$
MTZ305-071000-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
217 PM MDT Mon May 6 2024

Date           05/06/24      Tue 05/07/24            Wed 05/08/24            Thu
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                      41          48          38          56          40
Temp          56 55 50 47 45 43 42 45 46 43 38 42 42 42 45 51 53 54 48 45 44 41
Dewpt         39 45 40 41 39 39 38 40 41 42 38 40 40 40 43 43 45 48 42 43 42 38
RH            53 69 68 79 79 86 86 82 83 96100 93 93 93 93 74 74 80 80 93 93 89
Wind dir      NW  W  W  W  W  W  W NW NW NW NW NW NW  N  N  N  N  N NW NW  W  W
Wind spd      18 20 21 24 26 29 34 32 31 28 26 21 18 17 18 16 13 13 10  9  8  9
Wind gust           34 36 36 44    46 44 42 39 33
Clouds        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B1 B2 B2 B2 B2
PoP 12hr                    100         100         100          90          50
QPF 12hr                   0.43        0.95        0.54        0.19        0.02
Snow 12hr                 00-00       00-00       00-00
Rain           L  D  D  D  D  L  L  D  D  D  D  D  D  D  D  D  D  C  C  S  S
High Wind      W  W  W  W  W  W  W  W  W  W  W  W  W


Date           05/09/24  Fri 05/10/24  Sat 05/11/24  Sun 05/12/24  Mon 05/13/24
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      40    70      44    76      45    77      47    75
Temp          58 65 48   40 63 69 51   44 69 74 55   46 70 74 56   48 70 71
Dewpt         40 52 42   37 38 42 41   37 40 50 44   35 40 51 45   36 40 40
PWind dir         W       W    SW      SW     W       S    SW      SW     W
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 SC SC   FW FW FW FW   SC FW FW FW   SC FW FW SC   SC SC SC
PoP 12hr         20       5     0       5    10      10    10      20    20
Rain              S                                                 S     S
Rain shwrs                                                     S
Tstms                                                          S

$$
MTZ314-071000-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
217 PM MDT Mon May 6 2024

Date           05/06/24      Tue 05/07/24            Wed 05/08/24            Thu
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          39          31          39          34
Temp          47 46 42 40 39 35 35 36 35 33 32 31 31 31 33 35 39 39 37 37 36 36
Dewpt         36 34 30 29 28 28 29 33 33 33 32 31 31 31 33 35 38 37 35 36 35 35
RH            65 63 62 64 64 75 78 89 92100100100100100100100 96 92 92 96 96 96
Wind dir      NW NW  W  W  W  W  W  W  W NW NW  W NW NW NW NW NW NW NW  W  W  W
Wind spd      26 28 29 31 37 37 36 37 39 37 33 29 29 21 17 14 14 12 10  9  8  8
Wind gust     39 43 46 46 57 58 55 55 59 57 49 46 43 32
Clouds        OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
PoP 12hr                     60         100         100         100          90
QPF 12hr                   0.03        0.29        0.89        0.57        0.15
Snow 12hr                 00-00           T           4
Rain           L  L  C  C  S        L  D  D  D           D  D  D  D  D  L  L  C
Snow                          S  C  L  S  D  D  D  D  D  D  S
Obvis                                          BS BS BS
High Wind      W  W  W  W  W  W  W  W  W  W  W  W  W
Winter Weath                  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           05/09/24  Fri 05/10/24  Sat 05/11/24  Sun 05/12/24  Mon 05/13/24
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          53      34    63      39    68      42    70      45    70
Temp          45 52 40   35 58 61 45   40 66 66 48   43 68 68 51   46 66 67
Dewpt         38 45 36   31 36 38 37   31 39 48 38   30 39 49 40   33 39 41
PWind dir         W      SW     W      SW     W      SW     W      SW     W
Wind char        GN      LT    LT      GN    GN      GN    GN      GN    GN
Avg clouds    OV B2 SC   SC FW FW FW   FW FW FW FW   FW FW SC SC   SC SC B1
PoP 12hr         50      10     5       5    10      10    20      20    30
Rain           C  C
Rain shwrs                                                  S  S          C
Tstms                                                       S  S          S

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