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Point Forecast Matrices
National Weather Service Great Falls MT
233 PM MDT Sun May 20 2018

MTZ012-211100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
233 PM MDT Sun May 20 2018

Date           05/20/18      Mon 05/21/18            Tue 05/22/18            Wed
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                      50          74          50          73          51
Temp          72 72 64 58 53 51 60 68 69 73 63 54 53 50 59 67 73 71 61 54 53 51
Dewpt         44 45 47 48 47 45 49 49 50 48 49 48 49 47 50 50 49 50 48 46 46 47
RH            37 38 54 69 80 80 67 51 51 41 60 80 86 89 72 54 43 47 62 74 77 86
Wind dir      SE SE  E  S SW SW  W NW NW  N NW  W  W  W  W NE NE  E  E  E  E  E
Wind spd       8  6  6  6  6  5  6  5  6  6  6  8  8  8  6  8 10 10  9  8  8  6
Clouds        FW B1 B1 B1 B1 B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC B1
PoP 12hr                     20          40          50          50          30
QPF 12hr                      0        0.09        0.07        0.06        0.02
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S  S  S        S  S  C  C  C  C  C  C  C  C  C  C  C  C  S  S  C
Tstms          S  S  S              S  C  C                 S  S  S


Date           05/23/18  Thu 05/24/18  Fri 05/25/18  Sat 05/26/18  Sun 05/27/18
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          71      52    78      54    80      53    79      54    83
Temp          68 67 56   53 72 76 60   56 76 78 61   54 74 77 61   55 77 75
Dewpt         52 50 50   47 51 46 48   48 51 47 48   46 49 46 49   48 53 52
PWind dir         E       S    SW       W     W      SW     S       E    SE
Wind char        GN      GN    GN      GN    GN      GN    LT      GN    GN
Avg clouds    B1 B2 B2   B2 B1 B1 SC   SC SC SC SC   SC FW FW SC   SC SC SC
PoP 12hr         50      30    40      20    20      10    10      10    20
Rain shwrs     C  C  C    C  C  C  S    S     S                           S
Tstms             S  S          S  S          S                           S

$$
MTZ010-211100-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
233 PM MDT Sun May 20 2018

Date           05/20/18      Mon 05/21/18            Tue 05/22/18            Wed
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                      46          75          47          76          48
Temp          70 72 63 55 50 47 60 68 69 74 63 54 50 48 63 72 76 75 64 55 52 48
Dewpt         43 41 44 44 43 41 45 45 46 42 44 46 45 45 49 44 42 43 43 43 44 44
RH            38 33 50 66 77 79 58 43 44 32 50 74 83 89 60 37 30 32 46 64 74 86
Wind dir       S SW SW  W  W NW NW  N NW  N NW NW NW NW  N  E  E  E  E  E NE  N
Wind spd      10 10  6  5  6  5  6  6  6  8  6  5  6  6  5  9  9 10  8  5  5  5
Clouds        FW FW FW FW SC B1 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC FW FW SC SC
PoP 12hr                     20          30          40          30          20
QPF 12hr                   0.01        0.03        0.03        0.02        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                    C  C  C  C  C  C  C  C  S  S  C  C  S  S        S
Tstms                                  C  S                    S


Date           05/23/18  Thu 05/24/18  Fri 05/25/18  Sat 05/26/18  Sun 05/27/18
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          75      49    79      53    79      51    80      51    80
Temp          71 72 56   51 74 76 59   55 75 77 59   53 75 77 59   52 74 75
Dewpt         49 48 48   46 48 48 49   49 48 45 47   47 46 44 47   48 50 50
PWind dir         E       S     W       W    NW       W    SW      SE    SE
Wind char        GN      GN    GN      BZ    GN      GN    GN      GN    GN
Avg clouds    SC B1 B1   B1 SC SC SC   SC SC SC SC   SC FW FW SC   SC FW SC
PoP 12hr         40      20    30      20    20      10    10      10    10
Rain shwrs     S  C  S    S     C  S    S     S
Tstms             S             S  S

$$
MTZ014-211100-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
233 PM MDT Sun May 20 2018

Date           05/20/18      Mon 05/21/18            Tue 05/22/18            Wed
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                      49          72          50          72          50
Temp          70 71 63 56 53 50 58 67 70 71 64 55 52 50 57 65 72 70 63 56 52 50
Dewpt         45 43 46 47 46 46 48 49 50 49 52 48 48 48 50 50 51 51 52 48 47 47
RH            41 36 54 72 77 86 69 52 49 46 65 77 86 93 77 58 48 51 67 74 83 89
Wind dir      SE  E  S  W SW SW  W  N NW NW  W NW  W NW  N NE NE NE  N  N  N  N
Wind spd       6  6  4  4  2  2  3  4  8  9  5  4  4  3  3  5 10 10  6  4  3  3
Clouds        SC B2 B2 OV B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2
PoP 12hr                     30          40          50          60          50
QPF 12hr                   0.02        0.05        0.07        0.09        0.04
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S  C  C  S  S  S  C  C  C  C  C  C  C  C  C  L  L  C  C  C  C  C
Tstms          S  C  C              C  C  C  S              C  C  C


Date           05/23/18  Thu 05/24/18  Fri 05/25/18  Sat 05/26/18  Sun 05/27/18
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          70      50    78      51    81      51    82      52    81
Temp          64 68 56   51 70 77 60   52 72 80 59   53 74 81 60   52 72 75
Dewpt         50 53 50   48 49 47 47   46 49 48 48   47 50 46 48   47 48 43
PWind dir        NE      SE    SW       W     W       W     S       E    SE
Wind char        LT      LT    LT      GN    LT      LT    LT      LT    LT
Avg clouds    B2 B2 B2   B2 B2 B1 B1   SC SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr         60      50    40      30    20      10    10      10    20
Rain shwrs     C  L  C    C  C  C  C          S                           S
Tstms             C  C          C  C          S                           S

$$
MTZ055-211100-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
233 PM MDT Sun May 20 2018

Date           05/20/18      Mon 05/21/18            Tue 05/22/18            Wed
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                      45          72          46          72          49
Temp          68 69 59 54 49 46 57 66 71 71 62 54 48 47 55 67 72 68 60 54 50 49
Dewpt         46 45 47 46 45 42 47 48 47 50 51 49 45 44 48 52 51 52 51 49 47 46
RH            45 42 64 74 86 86 69 52 42 47 67 83 89 89 77 59 48 57 72 83 89 89
Wind dir      SE SE SE SE  S  S  W  W  W SW NW  S  S  S NW  N NE  E  E  E  E  E
Wind spd       5  9  6  5  4  4  2  5  5  5  5  6  4  3  2  3  8 12  6  6  5  4
Clouds        SC B1 B1 B2 SC B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B2 B1 B2 B2 B2
PoP 12hr                     20          40          50          60          60
QPF 12hr                   0.01        0.03        0.05        0.06        0.08
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S  S  S        S  S  C  C  C  C  C  C  C  C  L  L  L  L  C  C  L
Tstms          S  S  S              S  C  C  S              C  C  C  S


Date           05/23/18  Thu 05/24/18  Fri 05/25/18  Sat 05/26/18  Sun 05/27/18
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      48    76      48    79      49    79      49    81
Temp          63 65 55   49 69 75 57   49 73 77 57   51 75 76 58   50 75 74
Dewpt         55 53 50   45 51 49 47   43 49 46 47   45 50 46 49   46 49 49
PWind dir         E       S    SW      SW    SW      SW    SE       E    SE
Wind char        LT      LT    LT      GN    LT      LT    LT      LT    LT
Avg clouds    OV B2 B2   B2 B2 B1 B1   SC SC FW SC   SC FW FW SC   SC SC FW
PoP 12hr         70      50    50      30    20      10    10      10    20
Rain shwrs     L  L  C    C  C  C  C          S                           S
Tstms          S  C  C          C  C          S                           S

$$
MTZ055-211100-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
233 PM MDT Sun May 20 2018

Date           05/20/18      Mon 05/21/18            Tue 05/22/18            Wed
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          66          34          66          36
Temp          62 62 53 47 41 40 48 60 65 62 53 44 38 34 48 64 65 61 51 43 39 36
Dewpt         42 41 43 41 38 36 42 43 39 35 43 40 36 33 43 41 39 43 44 41 38 35
RH            48 46 69 79 89 85 80 53 38 36 69 86 92 96 83 43 38 51 77 93 96 96
Wind dir       S  S  S  S  S SE  S  S SW SW  W  E  E  E NE NE  N  E NE NE  E SE
Wind spd       8  6  3  3  3  2  2  5  9  6  4  2  1  2  1  5  6  8  4  2  2  1
Clouds        SC B2 SC B2 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B2 B2 B2 B2 B2
PoP 12hr                     20          30          30          50          70
QPF 12hr                   0.01        0.04        0.01        0.07        0.14
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S  S  S  S  S     S  C  C  C  C        S  S  C  C  L  L  C  C  L
Tstms          S  S  S              S  C  C  S              C  C  C  S  S
Obvis                   F  F  F


Date           05/23/18  Thu 05/24/18  Fri 05/25/18  Sat 05/26/18  Sun 05/27/18
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    64      35    70      35    71      37    70
Temp          57 56 43   38 59 61 44   37 65 67 47   37 66 66 46   37 62 59
Dewpt         45 41 41   36 44 43 40   34 44 41 41   34 42 42 41   35 40 39
PWind dir         S       S    SW      SW    SW       S    SE      SE    SE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B2 B2   B2 B2 B1 B1   B1 SC SC SC   SC FW FW SC   SC FW FW
PoP 12hr         70      50    50      30    10      10    10      10    10
Rain shwrs     L  L  C    C  C  C  C
Tstms          S  C  C          C  C

$$
MTZ008-211100-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
233 PM MDT Sun May 20 2018

Date           05/20/18      Mon 05/21/18            Tue 05/22/18            Wed
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                      46          69          44          69          46
Temp          66 66 59 53 50 47 54 63 68 67 58 51 46 44 53 63 69 67 58 53 48 47
Dewpt         41 42 44 45 45 43 45 45 43 45 47 47 44 43 48 48 47 49 49 49 46 46
RH            40 42 57 74 83 86 71 52 40 45 67 86 93 96 83 58 45 52 72 86 93 96
Wind dir       E  E  S  S  S  S SW SW  W NW  N  E  S  E NE NE NE NE NE NE NE NE
Wind spd       8  9  6  5  4  5  4  4  6  6  8  5  5  5  5  5 10 13 10  6  5  6
Clouds        SC B2 B2 OV B2 B2 B2 B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B2 B1 B2 B2 B2
PoP 12hr                     40          50          50          50          50
QPF 12hr                   0.05        0.04        0.06        0.04        0.07
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  L
Tstms          S  C  C              C  C  C  S              S  C  C  S


Date           05/23/18  Thu 05/24/18  Fri 05/25/18  Sat 05/26/18  Sun 05/27/18
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      45    72      45    75      45    77      46    76
Temp          60 65 52   46 67 70 54   46 68 73 55   46 72 74 56   46 69 67
Dewpt         50 50 47   43 49 47 46   42 46 42 44   42 49 42 48   43 46 42
PWind dir         E       S    SW      SW     W      NE     E       E    SE
Wind char        LT      LT    GN      GN    LT      LT    LT      GN    LT
Avg clouds    OV B2 B2   B2 B1 B1 B1   SC SC FW SC   SC FW FW SC   SC SC FW
PoP 12hr         70      50    40      30    10       5    10      10    20
Rain shwrs     L  L  C    C  C  C  C                                      S
Tstms          S  C  C          C  C                                      S

$$
MTZ011-211100-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
233 PM MDT Sun May 20 2018

Date           05/20/18      Mon 05/21/18            Tue 05/22/18            Wed
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                      48          79          52          78          53
Temp          74 76 65 58 53 49 61 73 77 78 68 60 55 52 63 73 77 77 67 60 56 53
Dewpt         45 44 48 48 46 45 49 49 47 43 49 49 49 48 50 49 44 45 47 47 48 48
RH            35 32 54 69 77 86 65 43 35 29 51 67 80 86 62 43 31 32 49 62 74 83
Wind dir       S  S SE SE  E  S SW  W  N  N NW  W  W  W  N NE NE NE  E  E  E  E
Wind spd       6  9  6  6  5  3  4  4  4  6  6  4  4  5  6  9  9  8  5  4  5  5
Clouds        CL CL FW FW FW FW FW FW SC SC B1 B1 B1 B2 B1 SC SC SC SC SC SC SC
PoP 12hr                     10          20          50          30          20
QPF 12hr                      0           0        0.02        0.02           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S  C  C  C  C  C  C  S  S  S  S        S
Tstms                                  S  S                    S


Date           05/23/18  Thu 05/24/18  Fri 05/25/18  Sat 05/26/18  Sun 05/27/18
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          78      54    81      55    83      54    82      55    84
Temp          75 76 62   55 74 80 64   56 76 81 62   55 76 80 63   55 75 81
Dewpt         51 51 53   52 55 50 54   51 53 48 50   50 51 46 50   49 49 48
PWind dir         E      SE     W       W     W      SW     S      SE    SE
Wind char        GN      GN    GN      GN    GN      GN    LT      GN    GN
Avg clouds    SC B1 B1   B1 B1 B1 SC   SC SC SC FW   SC SC FW FW   FW FW FW
PoP 12hr         40      40    40      20    10      10    10      10     5
Rain shwrs     S  C  C    C  C  C  S    S
Tstms             S  S          S  S

$$
MTZ051-211100-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
233 PM MDT Sun May 20 2018

Date           05/20/18      Mon 05/21/18            Tue 05/22/18            Wed
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                      47          72          49          69          48
Temp          69 69 58 52 49 48 62 70 71 70 60 54 51 49 59 67 69 67 59 53 50 49
Dewpt         46 46 48 46 43 42 47 47 50 53 51 50 49 48 54 54 54 54 53 50 47 47
RH            44 44 69 80 80 80 58 44 47 55 72 86 93 96 83 63 59 63 80 89 89 93
Wind dir      SE SE SE SE SE  S  W NW  N  N SW SW SW  W NW  N NE NE  E SE SE SE
Wind spd       6 10  6  5  5  5  2  4  4  5  5  4  5  5  3  5  6  6  5  4  5  5
Clouds        FW FW SC SC SC SC SC SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1
PoP 12hr                     10          30          60          70          50
QPF 12hr                      0        0.05        0.11        0.16        0.04
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          C  C  L  L  C  C  L  L  L  L  C  C  C  C  C
Tstms                               S  C  C  S           S  C  C  S


Date           05/23/18  Thu 05/24/18  Fri 05/25/18  Sat 05/26/18  Sun 05/27/18
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      49    74      52    76      50    76      52    78
Temp          66 65 54   51 69 72 57   54 72 73 56   52 73 72 57   54 74 75
Dewpt         56 56 52   48 53 52 48   48 51 50 49   47 49 50 49   50 53 56
PWind dir         E       S     W       W     W       W    SE      SE    SE
Wind char        GN      LT    GN      GN    GN      GN    LT      GN    GN
Avg clouds    B1 B2 B2   B2 B2 B1 SC   SC SC SC SC   SC FW SC SC   SC FW FW
PoP 12hr         60      50    50      30    20      10    10      10    10
Rain shwrs     C  L  C    C  C  C  C    S     S
Tstms             C  C    S     C  S          S

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




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