Point Forecast Matrices
Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
821 AM MDT Tue May 14 2024

MTZ312-142200-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
821 AM MDT Tue May 14 2024

Date             Tue 05/14/24            Wed 05/15/24            Thu 05/16/24
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          44          72          47          72
Temp                51 54 58 59 53 51 46 44 54 64 69 71 61 54 50 48 55 65 70 71
Dewpt               46 45 45 43 43 45 42 41 41 39 37 40 41 40 39 38 40 41 40 40
RH                  83 71 62 55 69 80 86 89 61 40 31 32 48 59 66 68 57 41 33 32
Wind dir            NW  N  N NW  S SW SW SW SW  W  W  W  W SW  W SW SW  W  W  W
Wind spd             9 12 10  9  5  5  6  9 10 10 12 11  8  9 10  9 10 13 18 18
Clouds              B2 B2 B1 B1 SC B2 B1 FW FW B2 OV OV B1 B1 B1 B2 SC B1 B1 SC
PoP 12hr                     90          30          20          30          30
QPF 12hr                   0.07           0        0.01        0.02           0
Snow 12hr                 00-00       00-00       00-00
Rain                                               S  C  C  S  S  S  S  C  C  S
Rain shwrs           D  L  C  C
Tstms                   C  C  C


Date               Fri 05/17/24  Sat 05/18/24  Sun 05/19/24  Mon 05/20/24
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            49    70      41    62      40    65      42    67
Temp          56   50 67 66 49   42 56 61 46   41 60 63 48   43 60 66
Dewpt         39   34 35 34 35   33 33 32 33   30 32 32 34   33 34 35
PWind dir          SW     W       W     W       W     W       W     W
Wind char          BZ    BZ      BZ    GN      GN    GN      GN    GN
Avg clouds    SC   FW FW SC B1   SC B1 B1 SC   SC SC SC SC   SC SC SC
PoP 12hr           20    20      30    40      20    20      20    20
Rain           S          S  C    S  C     S          S  S          S
Rain shwrs                              C
Tstms                                   S

$$
MTZ303-142200-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
821 AM MDT Tue May 14 2024

Date             Tue 05/14/24            Wed 05/15/24            Thu 05/16/24
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          41          71          47          69
Temp                48 52 58 60 53 48 44 42 54 66 70 70 60 54 50 48 54 63 67 68
Dewpt               44 42 41 38 40 42 41 37 38 37 38 40 41 41 40 41 40 39 39 39
RH                  86 69 53 44 61 80 89 82 54 34 31 33 49 61 68 77 59 41 36 34
Wind dir             N NW  N NW SW SW  W  W  W  W  W  W  W  W  W  W  W  W  W  W
Wind spd            14 13 11 10  5  8  8  9 12 13 19 20 11 14 13 10 13 18 21 24
Wind gust                                            31                28 34 36
Clouds              OV B1 B1 SC B2 B1 FW FW B1 B2 OV OV B1 B1 B1 B2 B1 B1 B1 SC
PoP 12hr                     80          10          20          30          30
QPF 12hr                   0.05           0        0.01        0.02           0
Snow 12hr                 00-00       00-00       00-00
Rain                                               S  C  C  S  S  S  S  C  C  S
Rain shwrs           L     S
Tstms                      S


Date               Fri 05/17/24  Sat 05/18/24  Sun 05/19/24  Mon 05/20/24
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            45    64      38    58      37    61      37    64
Temp          52   46 59 59 43   38 51 57 43   37 57 60 45   38 58 62
Dewpt         37   34 35 33 35   34 31 30 32   30 29 30 33   31 31 31
PWind dir           W     W      NW    NW       W     W       W     W
Wind char          BZ    BZ      BZ    BZ      GN    GN      GN    GN
Avg clouds    SC   SC SC B1 B1   B1 B1 B1 SC   SC SC SC B1   SC SC SC
PoP 12hr           20    30      40    40      20    20      10    20
Rain           S    S  S  C  C    C  C  C  S          S             S

$$
MTZ319-142200-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
821 AM MDT Tue May 14 2024

Date             Tue 05/14/24            Wed 05/15/24            Thu 05/16/24
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                      67          47          75          51          78
Temp                57 61 63 62 57 53 50 47 55 66 73 74 67 59 54 51 57 69 76 77
Dewpt               38 41 44 42 44 45 43 42 41 38 36 36 36 37 37 38 37 38 37 35
RH                  49 48 50 48 62 74 77 83 59 36 26 25 32 44 52 61 47 32 24 22
Wind dir            NW NW  N NW  W  W  W SW  W  W  W  W  W  W  W SW  W  W  W  W
Wind spd            10 12 11 10  5  5  5  5  6 10 13 18 10 10  9  6  9 17 21 23
Wind gust                                                                    35
Clouds              B2 B2 OV B1 B1 OV B1 SC FW B2 OV OV B1 SC SC B1 SC SC SC FW
PoP 12hr                     80          40          10          10          20
QPF 12hr                   0.14        0.05           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                                                                    S  S
Rain shwrs           C  L  D  C  C  S
Tstms                S  C  C  C  S  S


Date               Fri 05/17/24  Sat 05/18/24  Sun 05/19/24  Mon 05/20/24
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            53    75      45    66      41    70      43    70
Temp          61   53 69 72 55   45 59 64 49   41 60 69 53   43 62 69
Dewpt         36   37 35 29 29   29 29 27 31   29 30 28 32   31 33 32
PWind dir           W     W       W     W       W     W       W    NW
Wind char          BZ    BZ      BZ    GN      GN    GN      GN    GN
Avg clouds    FW   FW FW SC SC   SC SC B1 SC   SC SC SC SC   SC SC SC
PoP 12hr           10    20      20    30      20    20      10    20
Rain                      S  S    S  S  C  S          S
Rain shwrs                                                          S
Tstms                                                               S

$$
MTZ326-142200-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
821 AM MDT Tue May 14 2024

Date             Tue 05/14/24            Wed 05/15/24            Thu 05/16/24
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                      65          42          70          43          75
Temp                52 57 60 60 52 48 46 43 52 62 67 70 60 52 47 44 54 67 73 74
Dewpt               43 42 43 45 44 44 43 41 44 43 42 41 39 39 38 36 38 39 38 40
RH                  71 57 53 58 74 86 89 93 74 50 40 35 46 61 71 73 54 36 28 29
Wind dir            SW  N NW NW  W SW  S  S SW  W  W  W  S  S  S  S SW  W  W  W
Wind spd             5 10 10 10  6  5  6  4  5  8 10 12  6  6  8  5  5 16 19 21
Wind gust                                                                 29 33
Clouds              B2 B2 B2 B1 B1 B1 B2 B1 SC B1 B2 B2 B1 B1 B1 B1 SC SC SC SC
PoP 12hr                     80          50          10          10          20
QPF 12hr                   0.09        0.05           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                                   S                                S  S  S
Rain shwrs           C  D  L  C  C  S
Tstms                S  C  C  C  S  S


Date               Fri 05/17/24  Sat 05/18/24  Sun 05/19/24  Mon 05/20/24
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            46    75      40    66      36    66      38    68
Temp          54   46 69 71 51   41 58 64 45   37 58 66 48   39 61 63
Dewpt         37   35 37 32 33   28 29 32 31   28 33 33 33   30 36 35
PWind dir           W     W       W     W       S     W      SE    SW
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   FW FW SC SC   SC SC B1 SC   SC SC SC SC   SC SC SC
PoP 12hr           20    20      20    30      20    20      10    20
Rain           S          S  S    S  S  C  S          S
Rain shwrs                                                          S
Tstms                                                               S

$$
MTZ330-142200-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
821 AM MDT Tue May 14 2024

Date             Tue 05/14/24            Wed 05/15/24            Thu 05/16/24
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          63          33          66
Temp                43 49 53 52 45 39 36 34 43 56 61 62 52 42 37 34 45 61 66 64
Dewpt               38 38 36 36 38 37 34 34 35 36 33 32 33 34 33 31 32 34 33 32
RH                  82 66 52 54 76 92 92100 73 47 35 32 48 73 85 89 60 36 29 30
Wind dir             N SW NW  W NE  N NE SE NE  N NW  W NW SW SW SW SW SW  W SW
Wind spd             3  5  5  8  6  4  3  2  4  5  6 10  5  4  3  2  4 13 14 21
Wind gust                                                                    32
Clouds              OV B2 OV B2 SC B1 B2 B1 SC B1 B1 B1 B1 B1 SC B1 SC SC SC SC
PoP 12hr                    100          60          10           5          20
QPF 12hr                   0.16        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                                                                    S  S
Rain shwrs           D  L  D  L
Tstms                S  C  C  C


Date               Fri 05/17/24  Sat 05/18/24  Sun 05/19/24  Mon 05/20/24
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    67      33    60      29    61      32    62
Temp          46   36 63 64 44   33 56 58 39   29 55 59 40   32 57 59
Dewpt         35   30 33 26 28   24 24 21 26   22 25 23 29   27 28 26
PWind dir          SW    SW       W    SW      SW    SW       S     S
Wind char          GN    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    SC   FW FW FW SC   SC FW SC SC   FW SC SC SC   SC SC SC
PoP 12hr           10    10      20    20      20    20      10    20
Rain                         S    S     S  S          S
Rain shwrs                                                          S
Tstms                                                               S

$$
MTZ328-142200-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
821 AM MDT Tue May 14 2024

Date             Tue 05/14/24            Wed 05/15/24            Thu 05/16/24
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                      63          42          70          43          74
Temp                47 56 60 59 52 48 44 42 49 60 67 70 60 51 46 43 52 67 72 73
Dewpt               43 39 39 38 40 41 41 40 39 36 34 33 34 34 33 34 34 35 30 31
RH                  86 53 46 45 63 77 89 93 68 41 29 25 37 52 60 70 50 30 21 21
Wind dir            SW NW  N  N  N NE  S SW SW  W  W  W NW SW SW SW SW  W  W  W
Wind spd             6  6 10 12 10  6  6  6  5  6 10 12  9  6  8  8  8 13 21 24
Wind gust                                                                 33 36
Clouds              B2 B1 B2 B1 B1 OV B1 SC FW SC B2 B2 B1 SC SC SC SC SC FW FW
PoP 12hr                     70          40          10           0           5
QPF 12hr                   0.04        0.03           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           C  C  L  C  S
Tstms                   C  C  C  S


Date               Fri 05/17/24  Sat 05/18/24  Sun 05/19/24  Mon 05/20/24
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            45    74      39    65      37    68      38    66
Temp          53   45 68 70 49   39 58 64 45   37 59 67 47   38 60 64
Dewpt         34   34 29 23 26   26 23 20 27   26 26 23 29   27 30 27
PWind dir          SW    SW       W     W       W    SW       W    SW
Wind char          BZ    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    FW   FW FW FW FW   FW FW FW SC   SC FW SC SC   SC SC SC
PoP 12hr            5    10      10    20      10    10      10    20
Rain                                    S
Rain shwrs                                                          S
Tstms                                                               S

$$
MTZ305-142200-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
821 AM MDT Tue May 14 2024

Date             Tue 05/14/24            Wed 05/15/24            Thu 05/16/24
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                      65          44          73          49          69
Temp                56 61 62 62 55 50 47 44 55 67 71 72 63 56 53 49 55 64 67 68
Dewpt               48 49 47 46 46 45 44 43 45 45 41 42 46 47 46 45 44 44 43 44
RH                  74 65 58 56 72 83 89 96 69 45 34 34 54 72 77 86 66 48 42 42
Wind dir             N  N NW  N  W SW SW SW SW SW  W  W SW SW  W  W  W  W  W  W
Wind spd             9 10 10 10  5  6  6  5  9 10 11 12  6  8 10  9 10 11 13 13
Clouds              B2 B2 B2 B1 SC B1 B1 FW FW B1 OV OV B1 B2 B1 B2 B2 B1 B1 B1
PoP 12hr                     60          30          40          50          30
QPF 12hr                   0.07           0        0.01        0.02           0
Snow 12hr                 00-00       00-00       00-00
Rain                                                        C  C  S  S  C  C
Rain shwrs           S  C  L  C                 S  S  C  C                    C
Tstms                      S  S                 S  S  S  S                    S


Date               Fri 05/17/24  Sat 05/18/24  Sun 05/19/24  Mon 05/20/24
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            47    69      41    62      40    66      42    69
Temp          54   48 64 64 49   41 55 61 46   40 60 65 50   43 62 66
Dewpt         44   40 41 39 41   38 38 37 37   34 37 37 38   36 41 38
PWind dir          SW     W      NW    NW       W     W      SE     W
Wind char          GN    BZ      BZ    BZ      GN    GN      GN    GN
Avg clouds    B1   B1 SC B1 B1   B1 B1 B1 SC   SC SC SC SC   B1 SC SC
PoP 12hr           40    30      40    40      20    30      20    20
Rain                C     C  C    C  C  C  S          C  S          S
Rain shwrs     C
Tstms          S

$$
MTZ314-142200-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
821 AM MDT Tue May 14 2024

Date             Tue 05/14/24            Wed 05/15/24            Thu 05/16/24
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                      58          40          66          46          66
Temp                50 54 55 55 48 44 42 41 52 63 66 64 57 53 49 47 54 62 65 65
Dewpt               41 44 46 44 44 42 40 39 41 43 41 40 42 42 41 40 42 42 41 42
RH                  71 69 72 66 86 93 93 92 66 48 40 41 57 66 74 76 64 48 41 43
Wind dir            NW NW NW NW  W SW SW SW  W  W NW NW SW SW  W  W  W  W  W NW
Wind spd            10 11 12 11  8  6  6  5  8 10 11 10  6  9 13 10 10 13 16 16
Clouds              B2 B2 B2 B1 SC B1 B1 B1 FW B1 B2 B2 B1 B1 B1 B2 B2 B1 B1 B1
PoP 12hr                     80          40          40          40          40
QPF 12hr                   0.17        0.01        0.02        0.02           0
Snow 12hr                 00-00       00-00       00-00
Rain                                                        C  C  S  S
Rain shwrs           C  L  D  C  S              S  S  C  C              C  C  C
Tstms                   C  C  C  S              S  S  S  S              S  S  S


Date               Fri 05/17/24  Sat 05/18/24  Sun 05/19/24  Mon 05/20/24
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            45    67      39    58      37    61      38    64
Temp          51   46 64 62 46   40 54 55 42   38 58 59 45   39 59 61
Dewpt         40   35 37 37 37   31 34 33 33   29 33 32 34   31 37 37
PWind dir           W     W       W    NW       W     W      SW     W
Wind char          GN    BZ      BZ    BZ      GN    GN      GN    GN
Avg clouds    B1   SC FW B1 B1   B1 B1 B1 B1   SC SC B1 SC   SC SC B1
PoP 12hr           30    30      40    50      30    30      20    30
Rain                S     C  C    C  C     C          C  S
Rain shwrs     C                        C                           C
Tstms          S                        S                           S

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