Point Forecast Matrices
Issued by NWS Great Falls, MT

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POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE GREAT FALLS MT
220 PM MDT MON MAY 4 2015

MTZ012-051115-
GREAT FALLS-CASCADE MT
47.47N 111.38W ELEV. 3663 FT
220 PM MDT MON MAY 4 2015

DATE           05/04/15      TUE 05/05/15            WED 05/06/15            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                      46          76          42          60          37
TEMP          74 75 62 55 51 46 61 72 76 70 57 52 50 42 49 54 59 59 51 47 42 37
DEWPT         32 29 30 35 34 36 42 38 38 45 49 44 39 37 32 35 25 27 31 33 33 33
RH            21 18 30 47 52 68 49 29 25 41 75 74 66 82 52 48 27 29 46 58 70 85
WIND DIR      SE SW SE  S SW SW  W  N SW  W NW NW NW NW NW NW NW NE NE NE NE  N
WIND SPD       6  6  5  5  5  4  5  3  6  6 12  8 10 10 11  9  9 13 13 11 11 11
CLOUDS        FW SC SC SC SC SC SC B1 B1 B2 B2 B2 B2 B1 B1 SC SC B1 B1 B2 B2 B2
POP 12HR                     10          30          60          10          30
QPF 12HR                      0        0.05        0.15           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                    S  S  C  C  L  L  C  C              S  S  C  C  C
TSTMS                               C  C  L  L


DATE           05/07/15  FRI 05/08/15  SAT 05/09/15  SUN 05/10/15  MON 05/11/15
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          50      34    50      34    53      34    60      37    62
TEMP          46 50 40   34 48 49 39   34 48 53 40   35 53 60 45   37 55 61
DEWPT         35 24 29   29 36 28 33   31 31 27 35   30 32 25 37   33 33 26
PWIND DIR         N      NE    NE       E    NE       E     E       E    NE
WIND CHAR        GN      GN    GN      GN    GN      GN    LT      GN    LT
AVG CLOUDS    B2 OV OV   OV OV B1 B2   OV OV B2 B2   B2 B2 B2 B2   B2 B2 B2
POP 12HR         30      20    20      30    30      30    30      20    20
RAIN SHWRS     C  C  S    S  S  S  S    C  C  C  C    C  C  S  S    S  S  S

$$
MTZ010-051115-
CUT BANK-GLACIER MT
48.60N 112.39W ELEV. 3838 FT
220 PM MDT MON MAY 4 2015

DATE           05/04/15      TUE 05/05/15            WED 05/06/15            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          70          33          57          30
TEMP          70 72 59 52 40 42 58 66 70 65 51 48 38 33 45 53 57 55 46 41 33 30
DEWPT         25 22 23 24 29 33 40 37 35 34 30 29 26 27 31 27 22 26 27 29 26 25
RH            18 15 25 33 64 70 51 34 27 31 44 47 62 78 58 36 25 32 47 62 75 81
WIND DIR       S SW SW SW  W  W  W NW SW  W  W  W  W NW NW NW  N  N  N NE NE  N
WIND SPD      10 13  6  6  6  6  8  4  8 12 12 11 13 12 14 11 11 13 13 14 14 12
CLOUDS        FW FW FW FW FW SC SC B1 B1 SC SC B1 B1 SC SC SC SC SC SC B1 B1 B2
POP 12HR                     10          30          40          10          20
QPF 12HR                      0        0.04        0.09           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                          C  C  C  C  C  C                    S  S
TSTMS                               C  C  C  C


DATE           05/07/15  FRI 05/08/15  SAT 05/09/15  SUN 05/10/15  MON 05/11/15
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          49      29    49      30    53      32    58      32    60
TEMP          45 48 36   29 46 48 36   31 50 51 39   33 52 57 40   33 54 59
DEWPT         25 22 24   25 27 26 23   27 25 21 31   27 27 25 31   28 28 24
PWIND DIR         N      NE     E       E     E       E    SE       E    NE
WIND CHAR        GN      GN    GN      GN    LT      LT    GN      LT    GN
AVG CLOUDS    B2 B1 B2   B1 B1 B2 B2   B2 B2 B2 B2   B2 B2 B1 B1   B1 B1 B1
POP 12HR         10      20    20      30    30      30    20      20    20
RAIN SHWRS           S    S  S  S  S    C  C  C  C    S  S  S  S    S  S  S
SNOWSHWRS                                  C

$$
MTZ014-051115-
HELENA-LEWIS & CLARK MT
46.61N 111.96W ELEV. 3893 FT
220 PM MDT MON MAY 4 2015

DATE           05/04/15      TUE 05/05/15            WED 05/06/15            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                      45          75          40          62          39
TEMP          74 77 67 56 51 45 54 71 74 70 62 52 45 40 45 56 60 61 53 47 43 39
DEWPT         28 27 30 34 34 35 40 40 37 44 43 39 32 33 30 27 20 23 22 28 26 30
RH            18 16 25 43 52 68 59 32 26 39 50 61 60 76 55 32 21 23 29 47 51 70
WIND DIR      SE SE  S SW  S  S SW  W  W  W NW  W  W NW NW  N  N  N  N  N  N  N
WIND SPD       6  4  3  2  2  3  3  4  8 12 11  6 12  6  6  5  6 11 11  9  9 11
CLOUDS        SC SC SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B2 B2 OV OV OV
POP 12HR                     10          30          60          10          40
QPF 12HR                      0        0.05        0.12           0        0.03
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                    S  S  C  C  L  L  C  C              C  C  C  C  C
TSTMS                               C  C  L  L


DATE           05/07/15  FRI 05/08/15  SAT 05/09/15  SUN 05/10/15  MON 05/11/15
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      37    52      38    55      33    62      37    62
TEMP          49 53 42   37 50 51 45   38 49 55 42   33 55 61 45   37 55 62
DEWPT         32 29 32   32 30 32 39   33 31 30 30   27 33 30 39   33 32 27
PWIND DIR        NE      NE    NE       N     N      NE    NE      NE    NE
WIND CHAR        GN      GN    GN      GN    LT      LT    LT      LT    LT
AVG CLOUDS    OV OV OV   B2 B2 B2 OV   OV OV OV OV   B2 B2 B2 B2   B2 B2 B2
POP 12HR         50      20    30      30    30      30    30      20    20
RAIN SHWRS     C  C  S    S  S  C  C    C  C  C  C    C  C  S  S    S  S  S

$$
MTZ055-051115-
BOZEMAN-GALLATIN MT
45.78N 111.16W ELEV. 4475 FT
220 PM MDT MON MAY 4 2015

DATE           05/04/15      TUE 05/05/15            WED 05/06/15            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                      42          73          40          60          39
TEMP          72 72 59 51 45 43 54 69 73 66 53 46 43 40 44 54 57 59 47 42 39 40
DEWPT         37 33 38 41 38 38 42 40 42 45 47 41 40 36 37 33 34 39 36 35 35 37
RH            28 24 45 68 76 82 64 35 33 47 80 83 89 85 76 45 42 47 65 76 85 89
WIND DIR      NW  E  E SE  E SE  S  W  S SW  W  W  W NW NW NW NW NE NE NE NE NE
WIND SPD       5  3  8  6  5  4  3  3  8  5  9  4  5  6  8  6  8  6  6  8  8  8
CLOUDS        B1 SC SC SC SC SC SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV
POP 12HR                     20          40          60          40          50
QPF 12HR                      0        0.04        0.16        0.05        0.06
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     S  S  S        S  S  C  C  L  L  C  C  S  S  C  C  C  C  C  C  C
TSTMS          S  S  S              C  C  L  L


DATE           05/07/15  FRI 05/08/15  SAT 05/09/15  SUN 05/10/15  MON 05/11/15
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          51      34    49      34    49      30    57      32    58
TEMP          49 50 37   35 46 48 36   35 44 49 37   31 52 56 40   32 53 57
DEWPT         37 34 32   32 30 34 34   31 34 30 34   27 34 35 34   28 36 34
PWIND DIR        NE       E     E      NE     N       E    NE       E    SE
WIND CHAR        GN      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    OV OV B2   B2 B2 B2 B2   OV OV B2 B2   B2 B2 B2 B2   B2 B2 B2
POP 12HR         50      30    30      30    30      30    30      30    30
RAIN SHWRS     C  C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C

$$
MTZ055-051115-
WEST YELLOWSTONE-GALLATIN MT
44.66N 111.11W ELEV. 6700 FT
220 PM MDT MON MAY 4 2015

DATE           05/04/15      TUE 05/05/15            WED 05/06/15            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          67          32          58          33
TEMP          66 65 57 43 39 33 46 63 67 64 50 41 32 34 40 53 58 56 50 41 34 34
DEWPT         27 33 34 35 36 32 41 40 36 38 42 36 29 33 38 41 39 35 34 35 31 32
RH            23 30 42 73 89 96 83 43 32 38 74 82 88 96 92 64 49 45 54 79 89 92
WIND DIR      SW NW  E SE  E  E  S SW SW SW  W NW  N NW  N  W  W  N  N  E  E  E
WIND SPD      10  8  3  4  3  3  4  5  6  8  5  2  4  4  4  3  6  5  5  5  5  5
CLOUDS        SC B1 B1 SC SC SC SC B1 B1 B2 B2 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B2
POP 12HR                     20          40          40          40          50
QPF 12HR                      0        0.08        0.12        0.06        0.24
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     C  S  S        S  S  C  C  C  C  C  C  S  S  C  C  C  C  C  C  L
TSTMS          C  S  S              C  C  C  C


DATE           05/07/15  FRI 05/08/15  SAT 05/09/15  SUN 05/10/15  MON 05/11/15
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          56      29    54      28    52      27    56      28    57
TEMP          52 53 38   29 48 53 36   29 46 51 37   27 49 55 36   29 52 55
DEWPT         42 39 36   28 39 36 31   28 31 34 31   26 37 32 30   26 36 33
PWIND DIR         E      NE    NE      NE     N       N     N      NE     S
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B2 OV B2   B2 B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2   B1 B2 B2
POP 12HR         70      50    50      50    40      40    30      30    30
RAIN SHWRS     L  L  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C
SNOWSHWRS                               C  C          C  C

$$
MTZ008-051115-
DILLON-BEAVERHEAD MT
45.26N 112.55W ELEV. 5357 FT
220 PM MDT MON MAY 4 2015

DATE           05/04/15      TUE 05/05/15            WED 05/06/15            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                      43          71          40          59          40
TEMP          72 70 61 53 49 43 54 67 70 63 54 50 48 42 41 52 58 57 54 46 45 40
DEWPT         22 23 24 32 33 35 39 35 39 45 48 44 43 38 36 33 28 32 34 40 37 33
RH            15 17 24 44 54 73 57 30 32 52 80 80 83 86 82 48 32 38 46 79 73 76
WIND DIR       W NW  E SW  S  S SW  W  S  W NE  W  W  N  N  N  N NE NE  N  N NE
WIND SPD       8  4  4  3  5  4  5  4  5  9  6  3  4  3  5  5  5 10 10  6  6  8
CLOUDS        B1 B1 B1 SC SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV
POP 12HR                     20          40          40          40          50
QPF 12HR                      0        0.07        0.10        0.03        0.17
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     S  S  S        C  C  C  C  C  C  C  C        C  C  C  C  C  C  L
TSTMS          S  S  S              C  C  C  C


DATE           05/07/15  FRI 05/08/15  SAT 05/09/15  SUN 05/10/15  MON 05/11/15
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          50      35    49      35    50      32    58      36    59
TEMP          46 50 40   35 46 48 41   35 44 50 39   33 53 57 45   36 53 59
DEWPT         32 36 37   31 30 31 37   30 28 24 30   30 26 32 35   31 29 34
PWIND DIR        NE      NE    NE      NE     N       N     N      NE     E
WIND CHAR        GN      GN    GN      GN    LT      LT    LT      LT    LT
AVG CLOUDS    OV OV B2   B2 OV B2 B2   OV OV B2 B2   B2 B2 B2 B2   B2 B2 B2
POP 12HR         60      40    30      30    30      30    30      30    30
RAIN SHWRS     L  C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C

$$
MTZ011-051115-
HAVRE-HILL MT
48.54N 109.76W ELEV. 2585 FT
220 PM MDT MON MAY 4 2015

DATE           05/04/15      TUE 05/05/15            WED 05/06/15            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          80          42          63          34
TEMP          75 76 62 56 49 41 55 73 79 77 63 56 49 42 48 58 63 61 52 44 37 34
DEWPT         38 37 40 42 41 37 43 44 44 43 48 46 42 38 38 37 31 29 32 33 31 30
RH            26 24 44 59 74 85 64 35 29 30 58 69 77 86 68 45 30 29 46 65 79 85
WIND DIR      SE  S SE SE SE  E  E SE SE SE NW  W  W  W NW NW NW  N  N  N  N  N
WIND SPD      13 10 10 13  5  5  5  9 12  8 10 10 13 14 17 17 19 16 16 12 12 11
CLOUDS        FW FW FW FW FW FW FW B1 B1 B2 B2 OV OV B1 B1 SC SC SC SC B1 B1 B1
POP 12HR                     10          20          60          10          10
QPF 12HR                      0        0.02        0.13           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                          S  S  L  L  C  C
TSTMS                               S  S  L  L


DATE           05/07/15  FRI 05/08/15  SAT 05/09/15  SUN 05/10/15  MON 05/11/15
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      33    54      32    55      33    63      34    64
TEMP          50 55 42   33 50 53 39   32 50 54 39   34 57 62 44   34 57 63
DEWPT         31 30 31   28 28 27 28   29 34 28 27   29 32 30 33   31 35 29
PWIND DIR         N      NE    NE       E     E       E     E      SE     E
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    B1 B1 B1   B1 B1 SC B2   B2 B2 B1 B1   B2 B2 B1 B2   B2 B1 B1
POP 12HR         10      20    20      30    30      30    30      20    20
RAIN SHWRS                S  S  S  S    C  C  C  C    C  C  S  S    S  S  S

$$
MTZ051-051115-
LEWISTOWN-FERGUS MT
47.05N 109.46W ELEV. 4144 FT
220 PM MDT MON MAY 4 2015

DATE           05/04/15      TUE 05/05/15            WED 05/06/15            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                      46          76          43          60          36
TEMP          72 73 59 52 49 47 63 72 76 73 54 50 45 43 48 54 59 59 48 42 37 36
DEWPT         38 41 42 43 41 39 47 41 43 46 46 45 42 36 34 34 35 30 35 34 31 32
RH            29 31 53 71 74 74 56 33 31 38 74 83 89 76 58 46 40 33 60 73 79 85
WIND DIR      SE SE SE SE  S  S SE SE SE SE  S  W NW NW NW NW NW  N  N  N  N  N
WIND SPD      10  9 10 10  8  8  8  8  8  6  3 10 14 16 18 16 18 14 14 10 10 12
CLOUDS        SC SC SC FW FW SC SC B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B2
POP 12HR                     20          30          60          20          20
QPF 12HR                      0        0.03        0.19        0.02           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS        S  S              C  C  L  L  L  L        S  S        S  S  C
TSTMS             S  S              C  C  L  L


DATE           05/07/15  FRI 05/08/15  SAT 05/09/15  SUN 05/10/15  MON 05/11/15
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          50      32    48      31    48      32    59      35    60
TEMP          45 50 38   32 43 47 35   32 43 48 37   33 52 58 41   36 55 59
DEWPT         28 28 33   29 33 32 33   30 34 36 34   28 37 30 34   30 34 33
PWIND DIR         N      NE     E       E    NE       E    SE      SE    SE
WIND CHAR        GN      GN    GN      GN    GN      GN    LT      GN    GN
AVG CLOUDS    B2 B2 B2   B2 B2 B2 B2   OV OV B2 B2   B2 B2 B2 B2   B2 B2 B2
POP 12HR         30      30    30      40    40      40    40      30    30
RAIN SHWRS     C  C  S    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C
SNOWSHWRS                                                C

$$



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