Point Forecast Matrices
Issued by NWS Great Falls, MT

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POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE GREAT FALLS MT
241 PM MST SAT DEC 20 2014

MTZ012-211100-
GREAT FALLS-CASCADE MT
47.47N 111.38W ELEV. 3663 FT
241 PM MST SAT DEC 20 2014

DATE          SAT 12/20/14      SUN 12/21/14            MON 12/22/14         TUE
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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                      36          49          31          39          23
TEMP             38 36 38 43 46 47 48 48 41 36 36 36 33 31 36 37 30 25 24 24 24
DEWPT            32 28 32 35 38 41 36 32 31 31 29 27 25 26 24 25 18 21 19 16 17
RH               79 72 79 73 73 79 63 54 67 82 75 69 72 81 61 61 60 84 81 71 74
WIND DIR         SW  S  S SW SW SW SW  W  W  W  W  W  W  W  W  W  W  W SW SW SW
WIND SPD         12 13 16 19 18 21 25 21 18 17 17 14 20 20 21 21 13 13 14 14 13
WIND GUST                          35    28
CLOUDS           B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 SC SC SC SC SC
POP 12HR                     20          50          30          30          10
QPF 12HR                   0.01        0.02        0.02        0.06           0
SNOW 12HR                 00-00       00-00       00-00
RAIN                    S  S  C  C  C  C  C  C              C  C
SNOW                    S  S                    C  C  C  C  C  C


DATE           12/23/14  WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          40      29    40      19    28      10    24      12    26
TEMP          35 34 31   32 38 33 24   21 26 18 12   13 20 14 12   14 22 17
DEWPT         20 21 19   23 27 24 23   19 17 13  7    9  9  8  6    8 11  9
PWIND DIR        SW      SW    SW      SW    NW       W    SW      SW    SW
WIND CHAR        BZ      BZ    GN      LT    GN      GN    GN      GN    BZ
AVG CLOUDS    SC B1 B1   B1 B2 B2 OV   OV OV OV B2   B2 B1 B1 B1   B1 B1 B1
POP 12HR         10      30    40      70    60      20    20      10    20
SNOW                 C    C  C  C  L    L  L  L  S    S  S  S          S  S

$$
MTZ010-211100-
CUT BANK-GLACIER MT
48.60N 112.39W ELEV. 3838 FT
241 PM MST SAT DEC 20 2014

DATE          SAT 12/20/14      SUN 12/21/14            MON 12/22/14         TUE
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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          43          28          36          22
TEMP             34 32 36 39 39 41 41 41 37 32 31 30 28 31 36 36 32 27 25 24 23
DEWPT            31 28 30 32 36 37 31 32 35 30 26 25 24 26 25 25 27 23 18 16 17
RH               89 85 79 76 89 85 67 70 92 92 81 81 85 81 64 64 81 85 74 71 77
WIND DIR         SW SW SW SW SW  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD         10 11 12 16 25 32 32 31 28 23 19 19 23 23 26 26 19 19 16 16 14
WIND GUST                    35 44 44 43                   36 36
CLOUDS           B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC
POP 12HR                     20          40          30          20           5
QPF 12HR                      0        0.01        0.01           0           0
SNOW 12HR                 00-00       00-00           T
RAIN                          C  C  S  S  C  C
SNOW                    S  S              C  C  S  S  S  S
HIGH WIND                     A  A  A  A


DATE           12/23/14  WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          37      27    34      16    26       7    23      11    23
TEMP          30 33 37   36 33 31 22   19 21 18  9    7 23 17 11   11 18 19
DEWPT         18 27 28   29 23 27 21   19 15 10  4    3 14 13  6    7 11 14
PWIND DIR         W       W     W       N    NW       W     W       W     W
WIND CHAR        BZ      BZ    GN      GN    GN      GN    GN      BZ    GN
AVG CLOUDS    SC B1 B1   B1 B2 B2 OV   OV B2 B2 B1   B1 B1 B1 B1   B1 B1 B1
POP 12HR         10      20    20      60    40      20    20      10    20
SNOW                 S    S  S  S  L    L  C  C  S    S  S  S          S  S

$$
MTZ014-211100-
HELENA-LEWIS & CLARK MT
46.61N 111.96W ELEV. 3893 FT
241 PM MST SAT DEC 20 2014

DATE          SAT 12/20/14      SUN 12/21/14            MON 12/22/14         TUE
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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          47          31          38          19
TEMP             38 33 32 33 31 36 42 47 46 44 41 44 39 35 32 30 31 26 22 21 20
DEWPT            25 24 24 27 27 32 32 36 32 29 32 28 33 27 15 19 20 21 18 17 16
RH               59 69 72 78 85 85 67 65 58 55 70 53 79 72 49 63 63 81 84 84 84
WIND DIR          S  S  S  S SW SW  W  W  W  W  W  W  W  W  W  W  W  W  W  W SW
WIND SPD          4  4  5  6  6 12 19 20 23 18 13 14 16 16 16 16  9  9  8  8  6
CLOUDS           B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B1
POP 12HR                     50          80          40          30          10
QPF 12HR                   0.04        0.08        0.02        0.01           0
SNOW 12HR                     T           T           T
RAIN                          D  D  C  C  C  C  C  C
SNOW              S  S  C  C  C  C  C  C        C  C  C  C  C  C


DATE           12/23/14  WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          35      25    38      20    26       9    23      12    26
TEMP          26 33 26   26 32 36 30   22 26 22 12    9 18 20 16   12 21 23
DEWPT         15 19 18   20 24 27 28   21 21 15  9    5 12 11 10    5 17 15
PWIND DIR        SW      SW    SW      SW    NW       W    SW      SW    SW
WIND CHAR        LT      LT    LT      LT    GN      LT    LT      LT    LT
AVG CLOUDS    B1 B1 B1   B1 B2 B2 OV   OV B2 B2 B2   B2 B1 B1 B1   B1 B2 B2
POP 12HR         10      30    70      80    60      20    20      20    20
SNOW                 C    C  L  L  D    D  L  L  S    S  S  S  S    S  S  S

$$
MTZ055-211100-
BOZEMAN-GALLATIN MT
45.78N 111.16W ELEV. 4475 FT
241 PM MST SAT DEC 20 2014

DATE          SAT 12/20/14      SUN 12/21/14            MON 12/22/14         TUE
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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                      31          45          27          34          12
TEMP             34 33 37 37 37 41 43 44 40 41 42 40 34 29 28 26 24 22 19 18 15
DEWPT            24 26 30 32 34 37 34 33 34 33 29 32 31 25 16 16 14 19 17 16 12
RH               66 75 75 82 89 85 70 65 79 73 60 73 89 85 60 65 65 88 92 92 88
WIND DIR          S  S  S SW SW SW  W  W  W  W  W  W  W  W  W  W  W  W  W  W SW
WIND SPD          3  4  3  4  8 10 14 16 16 12 10 12 14 14 13 13  9  9  8  8  8
CLOUDS           B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 SC SC B1
POP 12HR                     70          90          50          30          20
QPF 12HR                   0.04        0.12        0.03        0.02        0.01
SNOW 12HR                 00-00       00-00       00-00
RAIN                          D  D  L  L  C  C  C  C
SNOW              S  S  L  L                    C  C  C  C  C  C
SNOWSHWRS                                                         S  S        S


DATE           12/23/14  WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          30      21    36      18    24       9    22      11    24
TEMP          23 26 25   25 35 34 29   23 24 19 15   13 19 18 13   13 21 21
DEWPT         15 15 16   19 27 23 25   23 18 15 12    9 13 11  9    9 13 16
PWIND DIR        SW      SW    SW      SW    NW       W     W      SW    SW
WIND CHAR        GN      LT    GN      LT    GN      LT    LT      LT    GN
AVG CLOUDS    B1 SC B1   B1 OV OV OV   OV OV OV B2   B2 B1 B1 B1   B1 B2 B2
POP 12HR         20      30    70      80    70      30    20      10    20
SNOW                 C    C  L  L  D    D  L  L  C    C  S  S          S  S
SNOWSHWRS      S  S

$$
MTZ055-211100-
WEST YELLOWSTONE-GALLATIN MT
44.66N 111.11W ELEV. 6700 FT
241 PM MST SAT DEC 20 2014

DATE          SAT 12/20/14      SUN 12/21/14            MON 12/22/14         TUE
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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          39          21          31          -4
TEMP             29 30 32 30 34 33 35 38 35 35 37 34 33 21 27 31 24 16  8  2 -2
DEWPT            25 26 28 27 31 27 30 31 32 34 32 31 30 19 17 18 18 13  6  1 -4
RH               85 85 85 88 89 78 82 76 89 96 82 89 89 92 65 58 77 88 91 95 91
WIND DIR         SW SW SW SW SW SW SW  W  W  W  W  W  W  W  W  W NW NW NW NW SW
WIND SPD          8  8 10 10 10 10 12 14 16  6  8  9 11 11 13 13  8  8  5  5  4
CLOUDS           OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B1 B1 B1
POP 12HR                    100         100          90          50          30
QPF 12HR                   0.18        0.23        0.07        0.03        0.01
SNOW 12HR                     2           1           T
SNOW              L  L  D  D  D  D  D  D  D  D  C  C  C  C  C  C
SNOWSHWRS                                                         C  C        S
WINTER WEATH         Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


DATE           12/23/14  WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          25      16    31      15    22       2    17      11    22
TEMP          18 20 17   17 27 28 26   16 22 17 13    4 13 13 12   12 18 19
DEWPT         11 15 13   11 19 22 22   13 16 13 10    2  5  8 10    9 10 13
PWIND DIR        SW       S     S       S    NW      NW    SW       S     S
WIND CHAR        LT      LT    GN      LT    GN      LT    LT      LT    LT
AVG CLOUDS    B1 B2 B2   B2 B2 B2 OV   OV B2 B2 B1   B1 B1 B1 B1   B1 B1 B1
POP 12HR         20      30    60      60    50      40    30      20    20
SNOW                 C    C  L  L  L    L  C  C  C    C  C  C  S    S  S  S
SNOWSHWRS      S  S

$$
MTZ008-211100-
DILLON-BEAVERHEAD MT
45.26N 112.55W ELEV. 5357 FT
241 PM MST SAT DEC 20 2014

DATE          SAT 12/20/14      SUN 12/21/14            MON 12/22/14         TUE
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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          46          29          35          15
TEMP             33 36 38 41 43 44 45 44 41 43 42 40 36 32 27 28 22 20 18 17 15
DEWPT            26 29 32 32 35 36 38 30 36 38 36 33 29 23 15 11 13 13 13 10  8
RH               75 75 79 70 73 73 76 57 82 82 79 76 75 69 60 48 68 74 80 73 73
WIND DIR          S  S  S  S SW SW SW  W  W  W  W  W  W  W  W  W  W  W SW SW SW
WIND SPD         10 13 11 12 11 14 19 19 18 14 11 12 13 13 14 14 11 11 10 10 10
CLOUDS           B2 B2 B2 B2 B2 B2 OV OV B2 B2 B1 B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR                     70          90          60          30          10
QPF 12HR                   0.04        0.07        0.03           0           0
SNOW 12HR                 00-00       00-00       00-00
RAIN                          D  D  L  L  L  L
SNOW              S  S  L  L                    C  C  C  C  S  S


DATE           12/23/14  WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          33      23    37      20    27      10    25      12    27
TEMP          25 26 23   23 32 27 28   22 27 19 13   10 19 18 12   12 22 21
DEWPT         12 15 16   14 22 19 24   17 18 12  9    4  7 11  5    2 14 12
PWIND DIR        SW      SW     S       S     W       W    SW      SW     S
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC B1 B1   B1 OV OV OV   OV B2 B2 B2   B2 B2 B2 B1   B1 B2 B2
POP 12HR         10      20    70      80    60      30    20      20    20
SNOW                 S    S  L  L  D    D  L  L  C    C  S  S  S    S  S  S

$$
MTZ011-211100-
HAVRE-HILL MT
48.54N 109.76W ELEV. 2585 FT
241 PM MST SAT DEC 20 2014

DATE          SAT 12/20/14      SUN 12/21/14            MON 12/22/14         TUE
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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                      25          44          27          38          21
TEMP             33 27 29 30 29 31 42 44 36 31 31 31 29 28 34 37 29 24 24 25 23
DEWPT            25 23 25 26 26 28 35 34 30 27 28 27 26 24 28 27 22 21 20 20 18
RH               72 85 85 85 88 88 76 68 79 85 88 85 88 85 78 67 75 88 84 81 81
WIND DIR         SW  S  S  S SW SW  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD          8  6  5  4  8 12 16 16 14 13 13 14 16 16 17 17 13 13 12 12 11
CLOUDS           SC SC B1 B1 B2 B2 B2 B2 B1 B1 B2 B2 B1 B1 B1 B1 SC SC SC SC SC
POP 12HR                     20          70          20          20          10
QPF 12HR                      0        0.08        0.02           0           0
SNOW 12HR                 00-00           T           T
FRZG RAIN               S  S  S  S
RAIN                    S  S  L  L  C  C  S  S
SNOW                          C  C        S  S  S  S  S  S  S  S


DATE           12/23/14  WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          36      23    36      20    26      12    25      12    24
TEMP          30 27 25   26 34 29 25   23 24 21 16   14 19 16 19   19 14 17
DEWPT         22 20 21   22 28 25 22   20 20 14 13   11 14 12 16   17  8 11
PWIND DIR        SW      SW     W       N    NW      NW     W       W    SW
WIND CHAR        GN      GN    GN      LT    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC B1   B1 B2 B2 OV   OV B2 B2 B2   B2 B1 B1 B1   B1 B1 B1
POP 12HR         10      20    20      40    30      20    10      10    10
SNOW                 S    S  S  S  C    C  C  C  S    S

$$
MTZ051-211100-
LEWISTOWN-FERGUS MT
47.05N 109.46W ELEV. 4144 FT
241 PM MST SAT DEC 20 2014

DATE          SAT 12/20/14      SUN 12/21/14            MON 12/22/14         TUE
MST 3HRLY     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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                      31          48          30          37          22
TEMP             36 31 33 37 40 44 46 47 41 39 40 39 36 31 32 36 32 26 25 23 22
DEWPT            26 25 26 29 34 38 35 31 31 30 30 29 28 26 25 23 22 21 19 17 15
RH               67 78 75 72 79 79 65 53 67 70 67 67 72 81 75 59 66 81 78 77 74
WIND DIR         SW SW SW SW SW SW  W  W  W  W  W  W  W  W  W  W NW NW  W  W  W
WIND SPD         10 10 12 13 14 18 21 21 23 23 23 23 20 20 20 20 17 17 16 16 12
CLOUDS           B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC
POP 12HR                     30          80          40          30          20
QPF 12HR                   0.02        0.08        0.08        0.05        0.03
SNOW 12HR                 00-00       00-00       00-00
RAIN                          D  D  L  L  C  C
SNOW                    C  C                    C  C  C  C  C  C
SNOWSHWRS                                                         S  S  S  S


DATE           12/23/14  WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
MST 6HRLY     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

MAX/MIN          40      27    40      21    27      12    26      13    29
TEMP          34 33 28   30 38 33 28   22 26 22 16   12 22 19 16   14 25 23
DEWPT         19 23 18   21 26 26 24   21 19 15 13    8 13 13  9    7 15 14
PWIND DIR         W       W     W       W    NW      NW     W       W     W
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC B1   B1 B2 B2 OV   OV OV OV B2   B2 B1 B1 B1   B1 B1 B1
POP 12HR         10      30    40      70    60      30    20      10    20
SNOW                 C    C  C  C  L    L  L  L  C    C  S  S          S  S

$$


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