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Issued by NWS Great Falls, MT

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POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE GREAT FALLS MT
913 PM MDT THU MAY 21 2015

MTZ012-221100-
GREAT FALLS-CASCADE MT
47.47N 111.38W ELEV. 3663 FT
913 PM MDT THU MAY 21 2015

DATE           05/21/15      FRI 05/22/15            SAT 05/23/15            SUN
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          70          46          67          42
TEMP                   53 46 43 55 65 69 68 61 55 53 46 56 64 66 66 57 53 46 42
DEWPT                  41 36 38 42 46 43 46 49 49 48 45 52 55 50 46 49 46 44 41
RH                     64 68 82 61 50 39 45 65 80 83 96 86 73 56 48 75 77 93 96
WIND DIR               SE  S  W  N NE NE  E  E NE NE NE NE NE NE  E  E  E  E  E
WIND SPD                8  5  5  5  8 12 13 11  8  5  5  5 12 12 10 10  3  3  2
CLOUDS                 FW FW SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC SC SC SC FW
POP 12HR                      5          20          30          40          20
QPF 12HR                      0        0.01        0.03        0.04        0.01
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                          S  S  S  S  C  C  C  C  C  C  S  S
TSTMS                               S  S  S  S  S  S        C  C  S  S


DATE           05/24/15  MON 05/25/15  TUE 05/26/15  WED 05/27/15  THU 05/28/15
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          67      43    70      46    69      44    65      42    61
TEMP          63 67 52   43 66 69 55   46 65 67 54   44 60 64 49   42 57 60
DEWPT         45 39 43   40 40 33 39   37 37 36 43   42 46 38 40   40 40 36
PWIND DIR         E      SE     S      SE    SW      SE     W      SE     W
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    FW SC SC   FW FW SC SC   SC SC B1 B1   B1 B1 B1 B1   SC SC SC
POP 12HR         20      20    20      20    30      30    40      40    20
RAIN SHWRS        S  S          S  S    S  S  C  C    C  C  C  C    S  S  S
TSTMS             S  S          S  S          S  S          S  S          S

$$
MTZ010-221100-
CUT BANK-GLACIER MT
48.60N 112.39W ELEV. 3838 FT
913 PM MDT THU MAY 21 2015

DATE           05/21/15      FRI 05/22/15            SAT 05/23/15            SUN
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          69          41          68          39
TEMP                   49 41 38 52 63 66 69 60 50 44 42 55 63 67 67 57 51 42 40
DEWPT                  35 32 33 39 42 43 40 45 44 41 40 49 47 47 38 40 42 39 37
RH                     58 70 82 61 46 43 35 58 80 89 93 80 56 49 34 53 71 89 89
WIND DIR                E NE NE  E  E  E  E  E  E NE NE NE  E  E  E  E  S  S  W
WIND SPD                8  6  5  5 10 12 13 10  6  8  5  5 11 11  9  9  2  2  1
CLOUDS                 CL CL FW FW SC SC SC SC SC SC SC SC SC SC SC SC FW FW FW
POP 12HR                      0           5          10          20          10
QPF 12HR                      0           0           0        0.03           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                                            S  S  S  S
TSTMS                                                       S  S


DATE           05/24/15  MON 05/25/15  TUE 05/26/15  WED 05/27/15  THU 05/28/15
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          69      39    69      42    65      40    61      38    58
TEMP          63 69 50   40 66 66 51   42 60 64 48   40 56 60 44   39 56 56
DEWPT         41 35 36   36 40 32 36   37 38 36 40   37 40 37 37   37 38 28
PWIND DIR        SW      SE     S       S    NW      NW     N       S    NW
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    FW SC SC   FW FW SC SC   SC SC B2 B2   B1 B1 B2 B2   SC SC SC
POP 12HR         10      10    20      20    30      30    30      30    20
RAIN SHWRS                      S  S    S  S  C  C    C  C  C  C    S  S  S
TSTMS                           S  S          S  S          S  S          S

$$
MTZ014-221100-
HELENA-LEWIS & CLARK MT
46.61N 111.96W ELEV. 3893 FT
913 PM MDT THU MAY 21 2015

DATE           05/21/15      FRI 05/22/15            SAT 05/23/15            SUN
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          48          67          45
TEMP                   53 49 45 52 65 72 68 61 54 54 48 55 61 67 64 55 52 48 45
DEWPT                  45 39 39 42 41 44 45 45 46 44 43 50 46 47 44 43 41 40 40
RH                     74 68 79 69 41 37 43 56 74 69 83 83 58 49 48 64 66 74 82
WIND DIR               SW  W  W NW  N  N NE  N  N  W NW NW  N  N NE NE NE NE NE
WIND SPD                5  5  4  4  5 11 12  5  4  6  5  5  9  9  6  6  2  2  2
CLOUDS                 SC SC SC SC B1 B1 B1 B1 SC SC B1 B1 B2 B2 B2 B2 SC SC SC
POP 12HR                     30          30          30          60          40
QPF 12HR                   0.01        0.01        0.02        0.14        0.06
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                    S  S  C  C  C  C  C  C  C  C  L  L  C  C  S  S  S
TSTMS                               C  C  C  C              C  C  C  C


DATE           05/24/15  MON 05/25/15  TUE 05/26/15  WED 05/27/15  THU 05/28/15
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          67      43    71      46    68      45    67      44    63
TEMP          62 67 52   44 65 70 53   47 66 65 51   46 63 66 54   44 60 62
DEWPT         39 38 41   40 35 33 37   38 36 36 39   41 38 38 40   38 39 36
PWIND DIR        NE       E     S       E    SW       W    SW       W     W
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    SC SC SC   SC SC B1 B1   B1 B1 B2 B2   B1 B1 B1 B1   B2 B2 B1
POP 12HR         20      20    20      20    40      40    40      40    30
RAIN SHWRS     S  S  S    S  S  S  S    S  S  C  C    C  C  C  C    C  C  S
TSTMS             S  S          S  S          S  S          S  S          S

$$
MTZ055-221100-
BOZEMAN-GALLATIN MT
45.78N 111.16W ELEV. 4475 FT
913 PM MDT THU MAY 21 2015

DATE           05/21/15      FRI 05/22/15            SAT 05/23/15            SUN
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          69          42          64          40
TEMP                   48 43 39 51 65 69 65 58 49 46 42 51 59 63 62 52 47 43 40
DEWPT                  39 38 36 42 43 46 46 48 42 42 40 45 46 47 45 46 40 41 37
RH                     71 82 89 71 45 44 50 69 77 86 93 80 62 56 54 80 76 93 89
WIND DIR               SE SE SW  W  N  E  E  E  E SW  E  E  E  E  E  E  E  E  E
WIND SPD               10  6  4  4  4 11 12 10  5  3  3  3 10 10  9  9  4  4  3
CLOUDS                 SC SC SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B2
POP 12HR                     10          40          30          50          40
QPF 12HR                      0        0.03        0.02        0.13        0.06
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                          C  C  S  S  C  C  C  C  C  C  C  C  S  S  C
TSTMS                               C  C  S  S              C  C  C  C


DATE           05/24/15  MON 05/25/15  TUE 05/26/15  WED 05/27/15  THU 05/28/15
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          62      38    67      42    68      42    69      40    61
TEMP          57 62 45   39 60 66 49   43 64 66 48   43 65 66 47   41 57 61
DEWPT         38 39 37   37 35 37 29   39 40 42 39   40 45 44 38   38 41 42
PWIND DIR         E       E     S      SW    SW      SW    SW      NE    SW
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B2 SC SC   SC SC B2 B2   B1 B1 B2 B2   B1 B1 B1 B1   B1 B1 B1
POP 12HR         30      30    30      30    40      40    30      30    30
RAIN SHWRS     C  C  C    S  S  C  C    S  S  C  C    C  C  C  C    C  C  C
TSTMS             S  S          S  S          S  S          S  S          S

$$
MTZ055-221100-
WEST YELLOWSTONE-GALLATIN MT
44.66N 111.11W ELEV. 6700 FT
913 PM MDT THU MAY 21 2015

DATE           05/21/15      FRI 05/22/15            SAT 05/23/15            SUN
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                      32          61          34          58          32
TEMP                   40 35 32 44 59 60 57 50 41 36 35 45 55 57 57 51 41 36 32
DEWPT                  38 34 32 41 44 41 40 45 39 35 35 44 48 46 40 45 39 36 32
RH                     92 96100 89 57 49 53 83 92 96100 96 77 67 53 80 92100100
WIND DIR                E  E NE  N NE NE  E NE NE NE  N  N NE NE NE NE NE NE NE
WIND SPD                4  4  3  3  4  8  9  5  4  4  4  4 10 10  8  8  5  5  5
CLOUDS                 B1 B1 B1 B1 B2 B2 OV OV B2 B2 B2 B2 OV OV B2 B2 B2 B2 B2
POP 12HR                     30          50          60          60          40
QPF 12HR                   0.01        0.09        0.08        0.13        0.08
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                    C  C  C  C  L  L  C  C  C  C  L  L  C  C  C  C  S
TSTMS                               C  C  C  C              C  C  C  C


DATE           05/24/15  MON 05/25/15  TUE 05/26/15  WED 05/27/15  THU 05/28/15
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          59      30    60      33    61      35    61      32    59
TEMP          56 59 40   31 56 57 42   34 58 58 41   36 57 59 39   33 53 58
DEWPT         36 33 37   30 38 28 39   33 40 37 38   35 44 35 37   32 43 36
PWIND DIR        NE      NE     S      SW     S      SW     S      SW     S
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B2 B1 B1   B1 B1 B2 B2   B2 B2 B2 B2   B1 B1 B1 B1   B1 B1 B1
POP 12HR         40      30    30      30    40      40    40      40    40
RAIN SHWRS     S  C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  C
TSTMS             S  S          S  S          S  S          S  S          S

$$
MTZ008-221100-
DILLON-BEAVERHEAD MT
45.26N 112.55W ELEV. 5357 FT
913 PM MDT THU MAY 21 2015

DATE           05/21/15      FRI 05/22/15            SAT 05/23/15            SUN
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          66          44          64          41
TEMP                   50 45 41 51 62 66 64 57 52 50 44 53 60 63 62 52 49 43 42
DEWPT                  44 42 39 45 42 42 44 47 45 45 42 47 43 46 43 47 44 41 40
RH                     80 89 92 80 48 42 48 69 77 83 93 80 53 54 50 83 83 93 93
WIND DIR                S  S  S  W  N  N NE NE NE  N NE NE NE NE NE NE NE NE NE
WIND SPD                5  5  5  5  6 12 13 10  4  3  4  4 13 13 12 12  5  5  4
CLOUDS                 B1 B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2
POP 12HR                     40          40          30          50          40
QPF 12HR                   0.03        0.05        0.05        0.07        0.05
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS              S  S  S  S  C  C  C  C  S  S  C  C  C  C  C  C  S  S  S
TSTMS                               C  C  C  C              C  C  C  C


DATE           05/24/15  MON 05/25/15  TUE 05/26/15  WED 05/27/15  THU 05/28/15
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          63      39    67      42    66      43    66      40    62
TEMP          55 63 48   40 61 66 50   42 63 63 49   44 61 65 50   40 56 61
DEWPT         34 33 38   36 33 35 40   38 40 40 40   40 42 44 42   38 43 38
PWIND DIR        NE      NE     S      SW    SW      SW    SW      NW     W
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B2 B1 B1   SC SC B2 B2   B1 B1 B2 B2   B1 B1 B1 B1   B1 B1 B1
POP 12HR         30      30    30      30    40      40    40      40    30
RAIN SHWRS     S  C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  C
TSTMS             S  S          S  S          S  S          S  S          S

$$
MTZ011-221100-
HAVRE-HILL MT
48.54N 109.76W ELEV. 2585 FT
913 PM MDT THU MAY 21 2015

DATE           05/21/15      FRI 05/22/15            SAT 05/23/15            SUN
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          73          43          73          41
TEMP                   48 41 39 54 70 73 72 64 53 48 43 55 68 72 71 61 52 45 41
DEWPT                  33 32 35 39 46 44 48 48 45 43 40 46 44 41 41 42 44 40 38
RH                     56 70 85 57 42 35 42 56 74 83 89 72 42 33 34 49 74 82 89
WIND DIR                E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E SE SE  E
WIND SPD               10 10 10 12 16 17 16 10  9  8  9  9 12 12  8  8  3  3  3
CLOUDS                 CL CL FW FW SC SC SC SC SC SC SC SC SC SC FW FW FW FW FW
POP 12HR                      0          10          30          20          10
QPF 12HR                      0           0        0.03        0.01           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                                S  S  C  C  S  S
TSTMS                                     S  S


DATE           05/24/15  MON 05/25/15  TUE 05/26/15  WED 05/27/15  THU 05/28/15
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          74      41    73      41    74      46    66      40    64
TEMP          69 72 52   42 69 71 53   41 69 71 58   46 62 65 48   41 61 63
DEWPT         43 41 42   38 41 36 40   37 43 37 47   42 39 37 38   38 38 35
PWIND DIR         E      SE    SE      SE    SE       E    SE      SE     W
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    FW SC SC   SC SC SC SC   SC SC B1 B1   B1 B1 B1 B1   SC SC SC
POP 12HR         20      20    20      20    20      20    20      20    20
RAIN SHWRS        S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S
TSTMS             S  S          S  S          S  S          S  S

$$
MTZ051-221100-
LEWISTOWN-FERGUS MT
47.05N 109.46W ELEV. 4144 FT
913 PM MDT THU MAY 21 2015

DATE           05/21/15      FRI 05/22/15            SAT 05/23/15            SUN
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          69          45          64          42
TEMP                   48 44 42 59 65 69 66 57 51 49 45 57 61 64 63 55 49 45 43
DEWPT                  36 36 36 45 46 46 46 46 45 44 41 46 46 45 42 45 42 41 38
RH                     63 73 79 60 50 44 48 67 80 83 86 67 58 50 46 69 77 86 82
WIND DIR                E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E NE
WIND SPD               12 10  9 10 13 17 14 11  6  8  8  8 12 12  9  9  3  3  1
CLOUDS                 FW FW SC SC B1 B1 B2 B2 B1 B1 B2 B2 B1 B1 B1 B1 SC SC SC
POP 12HR                      5          40          40          40          20
QPF 12HR                      0        0.03        0.06        0.05        0.02
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                          C  C  C  C  C  C  C  C  C  C  S  S        S
TSTMS                               C  C  C  C  S  S        C  C  S  S


DATE           05/24/15  MON 05/25/15  TUE 05/26/15  WED 05/27/15  THU 05/28/15
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          64      42    67      43    68      46    62      40    60
TEMP          60 64 46   44 63 65 48   44 63 67 51   47 60 60 46   41 56 59
DEWPT         42 40 38   38 39 39 39   38 38 39 43   41 41 40 38   38 40 40
PWIND DIR        NE      SE     S      SE     W      SE    NW      SE     W
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    SC SC SC   SC SC SC SC   SC SC B1 B1   B1 B1 B1 B1   B1 B1 B1
POP 12HR         20      20    20      20    30      30    30      30    20
RAIN SHWRS     S  S  S          S  S          C  C    S  S  C  C    S  S  S
TSTMS             S  S          S  S          S  S          S  S          S

$$



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