Point Forecast Matrices
Issued by NWS Great Falls, MT

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POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE GREAT FALLS MT
255 AM MDT SAT APR 18 2015

MTZ012-182300-
GREAT FALLS-CASCADE MT
47.47N 111.38W ELEV. 3663 FT
255 AM MDT SAT APR 18 2015

DATE             SAT 04/18/15            SUN 04/19/15            MON 04/20/15
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                      52          35          53          33          60
TEMP          40 39 43 44 51 50 41 39 36 35 40 46 53 51 42 39 34 34 46 55 59 59
DEWPT         31 33 36 33 29 28 28 24 22 23 25 20 20 22 19 19 19 20 26 26 26 27
RH            70 79 76 65 42 42 59 54 56 61 55 35 27 32 39 44 54 56 45 32 28 29
WIND DIR      SW NW  N  N  N  N NE NE NW  W  W  N  N NE NE  S  S  S  S SW SW  N
WIND SPD      10 10 13 12 11 13  9  6  3  3  3  6  8  9  9  8  8  8  8  9  9  4
CLOUDS        SC B1 B1 B1 B1 SC SC B1 B1 SC SC B1 B1 SC SC FW FW FW FW FW FW SC
POP 12HR                     40           5          10          10           5
QPF 12HR                   0.03           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS        C  C  C  C


DATE               TUE 04/21/15  WED 04/22/15  THU 04/23/15  FRI 04/24/15
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            38    67      41    71      44    65      38    61
TEMP          44   39 62 64 44   44 63 70 49   45 64 61 42   39 57 60
DEWPT         24   28 31 28 27   33 36 33 37   29 33 30 26   32 33 37
PWIND DIR           E     S       E     S      SE     W      NE    NE
WIND CHAR          LT    LT      GN    LT      LT    LT      GN    LT
AVG CLOUDS    SC   SC SC SC SC   SC SC SC SC   B1 B1 B1 B1   B1 B1 B1
POP 12HR            5     5       5    10      10    10      10    10

$$
MTZ010-182300-
CUT BANK-GLACIER MT
48.60N 112.39W ELEV. 3838 FT
255 AM MDT SAT APR 18 2015

DATE             SAT 04/18/15            SUN 04/19/15            MON 04/20/15
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                      50          32          51          32          61
TEMP          41 37 42 46 50 49 42 38 35 32 40 46 50 50 42 38 34 32 43 54 60 60
DEWPT         32 33 33 25 26 23 24 24 22 21 23 20 21 20 21 20 19 19 25 27 29 28
RH            70 85 70 43 39 36 48 57 59 63 50 35 31 30 43 48 54 58 49 35 31 29
WIND DIR      NW  N  N  N  N  N  N  N NW  N  N  N  N NE NE SE SE  S  S SW SW  N
WIND SPD      17 17 17 17 16 14  8  8  6  4  5  5  5  8  8  8  8  6  6  8  8  4
CLOUDS        B1 B1 B1 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC FW FW FW FW FW FW SC
POP 12HR                     30          10          10          10           5
QPF 12HR                   0.03           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     C  C  C  S  S


DATE               TUE 04/21/15  WED 04/22/15  THU 04/23/15  FRI 04/24/15
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            36    65      40    67      40    59      35    57
TEMP          47   36 59 64 47   41 62 66 50   40 54 58 41   36 52 56
DEWPT         27   26 31 29 30   27 34 32 33   31 32 31 29   30 30 34
PWIND DIR          NE     S      SE    SE       W    NW      NE    NE
WIND CHAR          LT    LT      LT    LT      LT    GN      GN    LT
AVG CLOUDS    SC   SC SC SC SC   SC SC SC B1   B1 B1 B1 B1   B1 B1 B1
POP 12HR            5     5       5    10      10    10      10    10

$$
MTZ014-182300-
HELENA-LEWIS & CLARK MT
46.61N 111.96W ELEV. 3893 FT
255 AM MDT SAT APR 18 2015

DATE             SAT 04/18/15            SUN 04/19/15            MON 04/20/15
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                      54          33          54          32          61
TEMP          40 35 44 50 54 53 46 40 36 33 39 48 52 54 47 39 36 32 42 54 59 61
DEWPT         27 29 33 36 35 34 33 31 30 29 27 27 27 26 26 24 24 23 27 28 28 30
RH            59 78 65 58 48 48 60 70 79 85 62 44 38 34 43 54 61 69 55 36 30 31
WIND DIR       W  W NW  N  N  N NW NW  W NW  N  N  N NE NE  S  S  S  S  S  S NE
WIND SPD       8  9 14 13 11 10  9  5  4  4  4  6  6  8  8  4  4  5  5  3  3  4
CLOUDS        FW B1 B1 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC
POP 12HR                     30          10          10          10           5
QPF 12HR                   0.03           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS        C  C  S  S


DATE               TUE 04/21/15  WED 04/22/15  THU 04/23/15  FRI 04/24/15
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            36    68      39    70      40    67      36    61
TEMP          44   37 63 65 48   40 63 69 49   41 66 60 40   37 51 61
DEWPT         25   28 36 26 30   29 35 35 39   35 40 32 31   32 27 37
PWIND DIR           E    SE       E     S       W    NW       N     E
WIND CHAR          LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    SC   SC SC SC SC   SC SC SC SC   B1 B1 B1 B1   B1 SC B1
POP 12HR           10    10      10    20      20    20      20    30
RAIN SHWRS                              S  S    S  S  S  S    S  C  C

$$
MTZ055-182300-
BOZEMAN-GALLATIN MT
45.78N 111.16W ELEV. 4475 FT
255 AM MDT SAT APR 18 2015

DATE             SAT 04/18/15            SUN 04/19/15            MON 04/20/15
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          33          52          31          58
TEMP          36 33 41 50 55 53 40 37 34 33 35 46 51 51 41 38 32 32 42 52 55 58
DEWPT         27 26 32 36 35 36 35 31 32 30 31 31 28 30 32 31 28 27 31 28 28 27
RH            69 75 70 58 47 52 82 79 92 89 85 55 41 44 70 76 85 81 65 39 35 30
WIND DIR       S SW  W NW NW  N  N  N  S  W  W NW NW NW NW SE SE  S  S  W  W NW
WIND SPD       4  6  6 12 14 11  9  4  3  3  4  5  6  6  6  6  6  6  6  8  8  4
CLOUDS        FW SC SC B1 B1 SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     20          10          10          10           5
QPF 12HR                   0.01           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS        S  S  S  S


DATE               TUE 04/21/15  WED 04/22/15  THU 04/23/15  FRI 04/24/15
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    66      38    70      39    66      36    61
TEMP          41   37 62 62 43   40 65 64 48   40 65 55 39   37 58 59
DEWPT         26   25 29 34 27   30 32 47 43   33 37 44 34   33 46 47
PWIND DIR          NE    SW      NE     S      SE     S      NE     E
WIND CHAR          LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    SC   SC SC SC SC   SC SC SC SC   SC B1 B1 B1   B1 B1 B1
POP 12HR           10    10      10    30      20    20      20    30
RAIN SHWRS                           S  C  S    S  S  S  S    S  C  C

$$
MTZ055-182300-
WEST YELLOWSTONE-GALLATIN MT
44.66N 111.11W ELEV. 6700 FT
255 AM MDT SAT APR 18 2015

DATE             SAT 04/18/15            SUN 04/19/15            MON 04/20/15
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                      51          28          47          26          51
TEMP          30 29 36 48 51 49 41 33 31 28 32 44 47 46 36 31 28 26 29 46 50 50
DEWPT         26 25 30 33 34 30 29 28 26 24 29 26 27 26 29 27 25 23 26 24 29 24
RH            85 85 79 56 52 48 62 82 81 85 88 49 45 45 75 85 88 88 88 42 44 36
WIND DIR       E NE  N  N  N  N  N  N  N  N  N NW NW SW SW NE NE NE NE  W  W NW
WIND SPD       2  4  6 11 13 12  9  6  4  4  4  6  6  4  4  6  6  5  5  6  6  6
CLOUDS        FW SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR                     20          10          20           5           5
QPF 12HR                   0.01           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS              S  S                    S  S
SNOWSHWRS                                 S  S


DATE               TUE 04/21/15  WED 04/22/15  THU 04/23/15  FRI 04/24/15
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            27    56      27    57      30    55      31    52
TEMP          36   28 52 53 36   28 54 53 36   31 53 51 36   32 50 49
DEWPT         27   21 28 30 30   22 31 35 32   26 37 40 33   28 38 30
PWIND DIR          NE     S       N     S       S     S       S     S
WIND CHAR          LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    SC   SC SC SC SC   SC SC B1 B1   B1 B1 B2 B2   B1 B1 B1
POP 12HR            5    20      10    20      20    30      30    30
RAIN SHWRS             S  S             S  S    S  S  C  C    C  C  C

$$
MTZ008-182300-
DILLON-BEAVERHEAD MT
45.26N 112.55W ELEV. 5357 FT
255 AM MDT SAT APR 18 2015

DATE             SAT 04/18/15            SUN 04/19/15            MON 04/20/15
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                      57          32          54          31          59
TEMP          35 33 42 51 57 55 47 40 37 32 34 46 51 54 45 41 35 31 39 51 58 58
DEWPT         24 26 31 30 31 30 33 33 32 28 32 30 30 30 38 35 31 28 36 32 30 29
RH            64 75 65 44 37 38 58 76 82 85 92 53 44 40 76 79 85 88 89 48 34 33
WIND DIR       S SW  W  N  N  N NE NE SE  E NE  N  N  N  N  E  E  S  S  W  W  N
WIND SPD       6  6  5 10 12 12 10  6  4  5  4  8  8 10 10  5  5  5  5  4  4  4
CLOUDS        FW SC SC B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC SC SC FW FW FW FW SC
POP 12HR                     30          10          20          10           5
QPF 12HR                   0.01           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS        S  S  C  C              S  S  S  S


DATE               TUE 04/21/15  WED 04/22/15  THU 04/23/15  FRI 04/24/15
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            33    65      36    67      38    65      35    58
TEMP          47   33 59 64 52   36 61 65 52   38 61 60 45   35 42 58
DEWPT         33   24 38 24 23   27 39 30 46   33 44 44 36   23 37 41
PWIND DIR          NE     N       N     S       W    SW       N     N
WIND CHAR          LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    SC   SC SC SC SC   SC SC SC B1   B1 B1 B1 B1   B1 B1 B1
POP 12HR            5     5       5    20      20    20      20    30
RAIN SHWRS                              S  S    S  S  S  S    S  C  C

$$
MTZ011-182300-
HAVRE-HILL MT
48.54N 109.76W ELEV. 2585 FT
255 AM MDT SAT APR 18 2015

DATE             SAT 04/18/15            SUN 04/19/15            MON 04/20/15
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                      55          31          54          32          59
TEMP          42 40 47 52 55 54 43 38 34 31 43 51 53 53 44 38 35 32 45 55 58 58
DEWPT         35 35 35 29 27 25 22 20 23 22 23 19 18 18 18 20 21 19 25 23 25 24
RH            76 82 63 41 34 32 43 48 64 69 45 28 25 25 35 48 56 58 45 29 28 27
WIND DIR       W NW NW NW NW NW NW  W  W  W  W NW NW  N  N SE SE SW SW  W  W NW
WIND SPD       8 11 18 20 21 20 11  8 10  9 10 14 16 12 12  4  4  6  6  8  8  6
CLOUDS        SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC FW FW FW FW FW FW SC
POP 12HR                     30           5           5           5           0
QPF 12HR                   0.01           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS        C  C


DATE               TUE 04/21/15  WED 04/22/15  THU 04/23/15  FRI 04/24/15
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            36    66      40    68      42    61      38    57
TEMP          46   36 61 64 51   40 61 67 52   42 58 60 44   39 54 56
DEWPT         24   25 28 25 26   24 28 32 31   28 30 31 28   27 29 31
PWIND DIR          NE     W      NE    SE      SE     E       E     E
WIND CHAR          LT    LT      GN    GN      BZ    GN      GN    BZ
AVG CLOUDS    SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC
POP 12HR            5     5       5     5      10    10      10    10

$$
MTZ051-182300-
LEWISTOWN-FERGUS MT
47.05N 109.46W ELEV. 4144 FT
255 AM MDT SAT APR 18 2015

DATE             SAT 04/18/15            SUN 04/19/15            MON 04/20/15
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                      50          30          47          30          53
TEMP          40 38 43 47 50 49 39 35 33 30 38 45 46 47 40 35 33 30 41 49 51 53
DEWPT         29 30 35 33 33 30 28 24 24 22 21 19 19 18 21 18 19 16 19 20 23 25
RH            64 73 73 58 52 48 64 64 69 72 50 35 34 31 46 49 56 55 41 31 33 33
WIND DIR      SW  W NW NW NW NW  N NW  W  W  W NW NW NW NW SW SW SW SW NW NW  N
WIND SPD       8 12 17 20 19 19 11  8 10 10 12 18 17 13 13  8  8  9  9 11 11 10
CLOUDS        FW SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC FW FW FW FW SC
POP 12HR                     30           5          10           5           5
QPF 12HR                   0.01           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS        S  S  C  C


DATE               TUE 04/21/15  WED 04/22/15  THU 04/23/15  FRI 04/24/15
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            34    61      38    65      42    61      36    56
TEMP          39   36 57 59 43   39 59 63 45   43 59 59 41   37 51 55
DEWPT         23   23 26 30 26   25 31 33 32   31 31 31 31   30 30 36
PWIND DIR           W     W       E     S      SE    SW       E     E
WIND CHAR          GN    GN      GN    GN      GN    LT      GN    LT
AVG CLOUDS    SC   SC SC SC SC   SC SC SC SC   SC B1 SC B1   SC B1 B1
POP 12HR            5     5       5     5      10    10      20    20
RAIN SHWRS                                               S    S  S  S

$$



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