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Issued by NWS Great Falls, MT

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

MTZ012-241100-
GREAT FALLS-CASCADE MT
47.47N 111.38W ELEV. 3663 FT
258 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          55 54 50 46 44 41 52 60 63 62 53 46 43 40 53 63 67 66 57 50 46 44
DEWPT         42 42 46 45 43 39 38 33 33 32 33 36 36 36 39 37 36 36 39 40 39 37
RH            61 64 86 96 96 92 59 36 32 32 46 68 76 85 59 38 32 33 51 68 76 76
WIND DIR       N  N NW  W  W SW SW SW SW SW  W SW  W  W  W SW SW  W  W SW SW SW
WIND SPD       6  8  6  8 13 13 17 16 16 12  3  4  5  5  5  4  4  6  6  4  4  5
CLOUDS        B2 B2 B2 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                   0.32        0.02           0           0        0.02
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     C  D  D  D  D  C  C                                S  S  S  S  S
TSTMS          C


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
258 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          52 53 49 47 42 39 52 58 60 58 49 44 39 36 53 60 64 64 54 47 44 42
DEWPT         42 40 42 41 39 35 37 34 33 33 34 34 34 34 37 35 31 31 34 34 34 32
RH            69 61 77 79 89 85 56 40 36 39 56 68 82 92 54 39 29 29 46 60 68 67
WIND DIR       W  N  N NW  W  W  W  W SW SW SW SW  W  W  W SW SW SW SW  W  W  W
WIND SPD       6  5  8 10 16 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 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR                    100          30           5          10          20
QPF 12HR                   0.37        0.02           0           0        0.02
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     C  D  D  D  D  C  C                                S  S  S  S  S
TSTMS          C


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
258 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          56 55 50 45 42 38 47 57 61 63 54 46 41 39 48 61 67 68 59 50 46 43
DEWPT         40 39 42 42 39 35 36 32 28 26 28 31 34 34 36 33 32 33 37 38 37 35
RH            55 55 74 89 89 89 65 38 28 24 36 55 76 82 63 35 27 27 44 63 71 73
WIND DIR      NW  N  N  W  W SW SW SW SW SW NW  W  W  W  W  W  W  W  W  W  W  W
WIND SPD       9  5  9  6 11  9 10 10 12  6  3  2  5  3  3  3  3  5  5  5  5  4
CLOUDS        B2 B2 B2 B2 B2 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                   0.25        0.01           0        0.01        0.01
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     C  D  D  D  D  C  C                          S  S  S  S
TSTMS          C                                            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
258 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          59 58 51 42 38 35 49 58 63 65 57 45 39 36 55 67 71 70 61 49 44 41
DEWPT         46 46 44 39 36 32 40 32 29 26 24 31 32 32 32 32 33 36 35 39 36 34
RH            62 64 77 89 92 89 71 37 27 23 28 58 76 85 41 27 25 29 38 68 73 76
WIND DIR       N  N NW  W  W SW SW SW SW SW  S  S SE  W  W  W  W  W  W  S  S SE
WIND SPD       8  3  3  5 10  6 12 11 14 12  4  3  4  2  2  4  4  8  8  5  5  5
CLOUDS        B2 B2 B2 B1 B1 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                   0.21        0.02           0        0.01           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     C  D  D  D  D  C  C                          S  S
TSTMS          C                                            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 43 46   44 45 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
258 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          57 55 48 39 33 30 40 52 56 56 49 40 36 34 48 61 65 64 55 45 39 37
DEWPT         35 37 36 33 29 27 31 24 23 21 23 20 30 28 26 25 26 24 27 28 28 26
RH            43 51 63 79 85 88 70 33 27 25 36 44 79 78 42 25 23 22 34 51 64 64
WIND DIR       S  S SW SW SW  S SW SW SW SW SW  S SE  S  S SW SW SW SW  S  S SE
WIND SPD      12  8  9  6 10  8 11 14 18 14  8  5  4  6  6 14 14 11 11  3  3  5
CLOUDS        B1 B1 B1 B1 B1 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                   0.08           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     C  C  C  C  C
TSTMS          C


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
258 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          56 54 49 41 37 32 44 55 60 60 52 42 38 34 50 62 68 68 58 48 43 40
DEWPT         38 38 37 37 32 29 30 21 20 18 22 28 29 29 30 26 26 29 32 34 32 31
RH            51 54 63 85 82 88 57 26 21 19 31 57 70 82 46 25 20 23 37 58 65 70
WIND DIR      NE NE  N NW  W SW SW SW SW SW SW SW  S SW SW SW SW SW SW  S  S  S
WIND SPD       9  5  5  4  3  6 10 11 18 13  6  3  3  2  2  8  8  8  8  4  4  4
CLOUDS        B2 B2 B2 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                   0.20        0.01           0        0.02        0.02
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     L  D  D  D  D  C  C                          C  C  S  S  S  S  S
TSTMS          C                                            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 42   44 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
258 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          66 65 61 54 51 47 56 64 68 67 59 50 46 42 58 69 73 72 63 54 49 47
DEWPT         48 51 52 50 48 44 50 47 42 41 41 40 39 39 41 39 36 36 41 43 42 40
RH            52 60 72 86 89 89 80 54 39 39 51 68 76 89 53 33 26 27 44 66 77 76
WIND DIR      SE  E  E  E  E SW  W  W SW SW SW SW NW  W  W  W  W SW SW SE SE  E
WIND SPD      17  8  8 11  8 14 18 18 18 13  5  3  3  6  6  6  6  4  4  4  4  3
CLOUDS        B2 OV OV B2 B2 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                   0.29        0.06           0           0        0.04
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     C  D  D  D  D  L  L                                C  C  C  C  C
TSTMS          C                                                  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
258 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          59 59 54 47 44 42 52 60 63 64 56 46 41 40 56 64 67 67 59 50 47 45
DEWPT         47 47 47 46 43 40 42 37 36 35 34 35 37 36 38 38 38 38 41 42 42 39
RH            64 64 77 96 96 93 69 42 36 34 43 65 85 85 51 38 34 34 51 74 83 79
WIND DIR       E NE NW NW  W  W  W  W SW SW  S  S  S NW NW  N  N NE NE  W  W SW
WIND SPD      12  4  6  5 10 12 18 13 16 10  2  4  5  6  6  4  4  6  6  5  5  5
CLOUDS        B2 B2 B2 B1 B1 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                   0.37        0.04           0           0        0.04
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS     L  D  D  D  D  C  C                          S  S  S  S  C  C  C
TSTMS          C                                            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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