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Issued by NWS Great Falls, MT

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POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE GREAT FALLS MT
850 PM MDT THU MAY 23 2013

MTZ012-241100-
GREAT FALLS-CASCADE MT
47.47N 111.38W ELEV. 3663 FT
850 PM MDT THU MAY 23 2013

DATE           05/23/13      FRI 05/24/13            SAT 05/25/13            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          64          40          68          44
TEMP                49 46 43 41 51 60 63 62 53 46 43 40 53 63 67 66 57 50 46 44
DEWPT               45 45 42 39 38 33 33 32 33 36 36 36 39 37 36 36 39 40 39 37
RH                  86 96 96 92 61 36 32 32 46 68 76 85 59 38 32 33 51 68 76 76
WIND DIR             E NW  W SW SW SW SW SW  W SW  W  W  W SW SW  W  W SW SW SW
WIND SPD             3  8 13 13 17 16 16 12  3  4  5  5  5  4  4  6  6  4  4  5
CLOUDS              OV B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR                    100          30          10          10          20
QPF 12HR                   0.25        0.02           0           0        0.02
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS           D  D  D  C  C                                S  S  S  S  S
TSTMS


DATE           05/26/13  MON 05/27/13  TUE 05/28/13  WED 05/29/13  THU 05/30/13
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      44    69      45    71      47    70      49    66
TEMP          64 67 52   44 64 67 53   46 66 69 55   47 65 67 56   49 63 64
DEWPT         38 38 38   37 41 41 44   42 44 43 45   43 46 43 47   43 42 40
PWIND DIR        SW      NW     W      SW    SW      SW    SW      SE    NW
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B1 B2 B2   B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   B2 B2 B1
POP 12HR         30      40    40      30    30      20    40      40    40
RAIN SHWRS     S  C  C    C  C  C  C    C  C  S  S    S  S  C  C    C  C  C
TSTMS             C  C          C  C          S  S          C  C          C

$$
MTZ010-241100-
CUT BANK-GLACIER MT
48.60N 112.39W ELEV. 3838 FT
850 PM MDT THU MAY 23 2013

DATE           05/23/13      FRI 05/24/13            SAT 05/25/13            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          60          35          65          41
TEMP                49 46 42 39 51 57 60 58 49 44 39 36 53 60 64 64 54 47 44 42
DEWPT               42 41 39 35 37 34 34 33 34 34 34 34 37 35 31 31 34 34 34 32
RH                  77 83 89 85 59 42 37 39 56 68 82 92 54 39 29 29 46 60 68 67
WIND DIR            NE NW  W  W  W  W SW SW SW SW  W  W  W SW SW SW SW  W  W  W
WIND SPD             5  5 10 16 20 19 20 16 11 10  9 11 11 10 10 11 11  9  9  8
CLOUDS              OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR                    100          30           5          10          20
QPF 12HR                   0.31        0.02           0           0        0.02
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS           D  D  D  C  C                                S  S  S  S  S
TSTMS


DATE           05/26/13  MON 05/27/13  TUE 05/28/13  WED 05/29/13  THU 05/30/13
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      43    67      44    71      45    70      48    66
TEMP          60 65 50   43 61 67 52   44 63 71 54   46 63 69 55   48 61 64
DEWPT         33 31 33   34 37 35 37   38 39 37 40   41 43 40 42   42 37 34
PWIND DIR         W       W     W       W    SW       W    SW       S    NW
WIND CHAR        LT      GN    GN      LT    LT      LT    LT      LT    GN
AVG CLOUDS    B1 B2 B2   B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   B2 B2 B1
POP 12HR         20      40    40      30    30      30    40      40    40
RAIN SHWRS     S  S  S    C  C  C  C    C  C  S  S    C  C  C  C    C  C  C
TSTMS                S                        S  S          C  C          C

$$
MTZ014-241100-
HELENA-LEWIS & CLARK MT
46.61N 111.96W ELEV. 3893 FT
850 PM MDT THU MAY 23 2013

DATE           05/23/13      FRI 05/24/13            SAT 05/25/13            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          63          38          69          43
TEMP                49 45 42 38 46 56 61 63 54 46 41 39 48 61 67 68 59 50 46 43
DEWPT               40 41 39 35 35 31 28 26 28 31 34 34 36 33 32 33 37 38 37 35
RH                  71 86 89 89 65 38 28 24 36 55 76 82 63 35 27 27 44 63 71 73
WIND DIR             W NW  W SW SW SW SW SW NW  W  W  W  W  W  W  W  W  W  W  W
WIND SPD            12  9 10  9 10 10 12  6  3  2  5  3  3  3  3  5  5  5  5  4
CLOUDS              OV OV OV B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR                     90          30          10          20          20
QPF 12HR                   0.19        0.01           0        0.01        0.01
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS           D  D  D  C  C                          S  S  S  S
TSTMS                                                       S  S


DATE           05/26/13  MON 05/27/13  TUE 05/28/13  WED 05/29/13  THU 05/30/13
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      46    71      46    72      48    70      49    63
TEMP          62 69 53   46 63 70 54   47 66 72 55   48 64 69 54   50 62 63
DEWPT         38 34 37   37 42 37 41   41 46 40 45   44 44 39 45   45 43 40
PWIND DIR         W      NW     W       W    SW       W    SW       S    NW
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B1 B2 B2   B2 B2 B2 B2   B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B1
POP 12HR         40      40    50      50    40      40    40      40    40
RAIN SHWRS        C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C
TSTMS                C          C  C          C  C          C  C          C

$$
MTZ055-241100-
BOZEMAN-GALLATIN MT
45.78N 111.16W ELEV. 4475 FT
850 PM MDT THU MAY 23 2013

DATE           05/23/13      FRI 05/24/13            SAT 05/25/13            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                      34          65          35          72          40
TEMP                46 40 37 35 47 56 62 65 57 45 39 36 55 67 71 70 61 49 44 41
DEWPT               40 38 35 32 38 31 28 26 24 31 32 32 32 32 33 36 35 39 36 34
RH                  79 92 92 89 71 38 27 23 28 58 76 85 41 27 25 29 38 68 73 76
WIND DIR             W  W  W SW SW SW SW SW  S  S SE  W  W  W  W  W  W  S  S SE
WIND SPD             8  4  9  6 12 11 14 12  4  3  4  2  2  4  4  8  8  5  5  5
CLOUDS              OV OV OV B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1
POP 12HR                     80          50           5          20          10
QPF 12HR                   0.17        0.02           0        0.01           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS           D  D  D  C  C                          S  S
TSTMS                S                                      S  S


DATE           05/26/13  MON 05/27/13  TUE 05/28/13  WED 05/29/13  THU 05/30/13
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      43    71      42    71      44    68      44    61
TEMP          66 69 52   43 66 70 51   43 67 69 53   44 65 65 50   44 60 59
DEWPT         36 37 42   39 43 43 46   39 43 43 47   43 44 42 45   43 44 45
PWIND DIR         S      SW    SW      SW     S       S    SW      SE    SW
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   B2 B2 B1
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          S

$$
MTZ055-241100-
WEST YELLOWSTONE-GALLATIN MT
44.66N 111.11W ELEV. 6700 FT
850 PM MDT THU MAY 23 2013

DATE           05/23/13      FRI 05/24/13            SAT 05/25/13            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                      30          57          33          66          36
TEMP                47 38 33 30 40 51 56 56 49 40 36 34 48 61 65 64 55 45 39 37
DEWPT               34 33 29 27 31 23 22 21 23 20 30 28 26 25 26 24 27 28 28 26
RH                  60 82 85 88 70 33 26 25 36 44 79 78 42 25 23 22 34 51 64 64
WIND DIR            SW SW SW  S SW SW SW SW SW  S SE  S  S SW SW SW SW  S  S SE
WIND SPD             9  4 13  8 11 14 18 14  8  5  4  6  6 14 14 11 11  3  3  5
CLOUDS              B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1
POP 12HR                     40          10           5          10          10
QPF 12HR                   0.07           0           0           0           0
SNOW 12HR                     T       00-00       00-00
RAIN SHWRS           C
SNOWSHWRS               C  C
TSTMS


DATE           05/26/13  MON 05/27/13  TUE 05/28/13  WED 05/29/13  THU 05/30/13
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      37    64      38    66      38    59      38    56
TEMP          61 61 45   38 61 62 45   38 64 63 47   39 57 57 45   38 55 55
DEWPT         29 29 34   31 36 36 36   34 37 45 43   38 40 40 38   35 35 39
PWIND DIR         S      SW     S       S    SE      SE     S       S     S
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      GN    LT
AVG CLOUDS    B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B1
POP 12HR         30      30    40      40    30      40    40      30    30
RAIN SHWRS        C  C    C  C  C  C    S  S  C  C    C  C  C  C    C  C  C
TSTMS                C          C  C          C  C          C  C          C

$$
MTZ008-241100-
DILLON-BEAVERHEAD MT
45.26N 112.55W ELEV. 5357 FT
850 PM MDT THU MAY 23 2013

DATE           05/23/13      FRI 05/24/13            SAT 05/25/13            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          69          39
TEMP                46 40 36 32 43 53 59 60 52 42 38 34 50 62 68 68 58 48 43 40
DEWPT               36 36 32 29 30 22 21 18 22 28 29 29 30 26 26 29 32 34 32 31
RH                  68 85 85 88 60 29 23 19 31 57 70 82 46 25 20 23 37 58 65 70
WIND DIR            NW  N  W SW SW SW SW SW SW SW  S SW SW SW SW SW SW  S  S  S
WIND SPD             9  4  2  6 10 11 18 13  6  3  3  2  2  8  8  8  8  4  4  4
CLOUDS              OV B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B1
POP 12HR                     80          30           5          30          20
QPF 12HR                   0.16        0.01           0        0.02        0.02
SNOW 12HR                     T       00-00       00-00
RAIN SHWRS           D        C  C                          C  C  S  S  S  S  S
SNOWSHWRS               D  D
TSTMS                S                                      S  S


DATE           05/26/13  MON 05/27/13  TUE 05/28/13  WED 05/29/13  THU 05/30/13
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    68      43    70      44    65      44    60
TEMP          62 66 49   43 63 67 50   44 67 68 51   45 63 63 47   44 59 57
DEWPT         32 35 42   39 40 38 43   39 40 41 46   44 42 38 41   43 43 42
PWIND DIR         S      SW    SW      SW     S      SW     S      SW    SW
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B1 B2 B2   B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B1
POP 12HR         20      20    20      30    30      20    20      20    20
RAIN SHWRS     S  S  S    S  S  S  S    C  C  S  S    S  S  S  S    S  S  S
TSTMS                S          S  S          S  S          S  S          S

$$
MTZ011-241100-
HAVRE-HILL MT
48.54N 109.76W ELEV. 2585 FT
850 PM MDT THU MAY 23 2013

DATE           05/23/13      FRI 05/24/13            SAT 05/25/13            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                      47          68          42          73          46
TEMP                59 53 50 47 56 63 67 67 59 50 46 42 58 69 73 72 63 54 49 47
DEWPT               49 49 47 44 49 46 42 41 41 40 39 39 41 39 36 36 41 43 42 40
RH                  69 86 89 89 77 54 40 39 51 68 76 89 53 33 26 27 44 66 77 76
WIND DIR            SW NW  E SW  W  W SW SW SW SW NW  W  W  W  W SW SW SE SE  E
WIND SPD             5  8  6 14 18 18 18 13  5  3  3  6  6  6  6  4  4  4  4  3
CLOUDS              OV OV OV B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1
POP 12HR                     90          60          10          10          40
QPF 12HR                   0.24        0.06           0           0        0.04
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS           D  D  D  L  L                                C  C  C  C  C
TSTMS                                                             S  S  S  S


DATE           05/26/13  MON 05/27/13  TUE 05/28/13  WED 05/29/13  THU 05/30/13
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          73      47    74      47    76      49    75      50    71
TEMP          69 72 55   47 71 72 56   47 72 73 58   49 71 73 57   50 68 69
DEWPT         41 38 40   39 41 41 46   43 43 39 47   44 44 44 47   45 39 35
PWIND DIR        SE      SW     W       W    SW      SW     S       E     N
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    GN
AVG CLOUDS    B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   B2 B2 B2
POP 12HR         30      40    40      30    30      20    30      40    40
RAIN SHWRS     C  C  C    C  C  C  C    C  C  S  S    S  S  C  C    C  C  C
TSTMS             C  C          C  C          S  S          C  C          C

$$
MTZ051-241100-
LEWISTOWN-FERGUS MT
47.05N 109.46W ELEV. 4144 FT
850 PM MDT THU MAY 23 2013

DATE           05/23/13      FRI 05/24/13            SAT 05/25/13            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                      42          65          39          68          44
TEMP                52 47 44 42 52 59 63 64 56 46 41 40 56 64 67 67 59 50 47 45
DEWPT               47 45 43 40 42 37 37 35 34 35 37 36 38 38 38 38 41 42 42 39
RH                  83 93 96 93 69 44 38 34 43 65 85 85 51 38 34 34 51 74 83 79
WIND DIR             W NW  W  W  W  W SW SW  S  S  S NW NW  N  N NE NE  W  W SW
WIND SPD            10 10 10 12 18 13 16 10  2  4  5  6  6  4  4  6  6  5  5  5
CLOUDS              OV B2 B2 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1
POP 12HR                    100          50           5          20          30
QPF 12HR                   0.28        0.04           0           0        0.04
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS           D  D  D  C  C                          S  S  S  S  C  C  C
TSTMS                S                                      S  S  S  S  S  S


DATE           05/26/13  MON 05/27/13  TUE 05/28/13  WED 05/29/13  THU 05/30/13
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      46    67      45    69      47    68      48    63
TEMP          64 67 51   47 64 66 50   46 64 68 53   48 65 66 54   48 60 62
DEWPT         43 41 43   43 47 47 46   44 48 43 47   44 51 46 49   46 42 39
PWIND DIR         S      NW     W       W    SW       S     W      SE    NW
WIND CHAR        LT      LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B1
POP 12HR         30      40    40      30    30      20    30      40    40
RAIN SHWRS     C  C  C    C  C  C  C    C  C  S  S    S  S  C  C    C  C  C
TSTMS             C  C          C  C          S  S          C  C          C

$$



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