Point Forecast Matrices
Issued by NWS Great Falls, MT

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6
000
FOUS55 KTFX 211010
PFMTFX

Point Forecast Matrices
National Weather Service Great Falls MT
310 AM MST Tue Feb 21 2017

MTZ012-212300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
310 AM MST Tue Feb 21 2017

Date                Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      45          30          34          21          29
Temp             37 37 43 45 44 38 35 33 32 30 34 34 32 27 24 23 22 21 26 28 26
Dewpt            29 31 33 32 31 28 28 28 29 25 23 16 20 20 19 19 18 16 17 14 15
RH               72 79 67 60 60 67 75 82 88 81 64 47 61 74 81 84 84 81 68 55 62
Wind dir          S  S SW SW SW SW SW  W  W  W  W  W NW NW  W  W NW NW  N  N  N
Wind spd         10  8 11 11 10 10  8  8 11 12 14 13 10 10  9  9  9  9 11 11 10
Clouds           B2 OV OV OV OV B2 OV B2 OV OV OV OV OV OV B1 B1 B2 B2 OV OV B2
PoP 12hr                     50          60          50          30          40
QPF 12hr                   0.05        0.04        0.10        0.04        0.07
Snow 12hr                 00-00           T           1
Rain shwrs        C  C  C  C  C  S  C
Sleet                C
Snow                                                  C  C  C  C  C  C  C  C  C
Snowshwrs         C  C           S  C  L  C  C  C  C
Tstms                      S


Date               Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            14    26       7    23       7    25       7    20
Temp          20   14 24 24 13    7 17 23 11    8 21 24 10    7 13 20
Dewpt         16   12 11 12 10    4  4  8  5    4  7 10  6    3  5 10
PWind dir          NE    SW       N     W       W    SW       N     N
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2   OV OV OV B2   OV B2 B1 B1   B2 B1 SC SC   OV OV OV
PoP 12hr           30    30      30    20      20    10      30    40
Snow           C    C  C  C  C    C  S  S  S    S        S    C  C  C

$$
MTZ010-212300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
310 AM MST Tue Feb 21 2017

Date                Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      37          25          33          18          26
Temp             31 31 35 37 35 30 29 28 26 27 30 33 28 24 22 20 19 18 22 25 22
Dewpt            25 26 29 31 31 29 27 28 26 26 25 23 21 20 19 17 17 16 18 16 16
RH               78 81 78 79 85 96 92100100 96 81 66 75 84 88 88 92 92 84 68 77
Wind dir          W  W  W SE  E  N  N  N NW NW NW  W NW NW NW NW NW NW  N  N NE
Wind spd         10  4  5  8  6  4  5  3 11 11 13 16 14 14 13 13 13 13 13 13 11
Clouds           B1 OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 OV OV OV OV OV
PoP 12hr                     60          70          60          40          40
QPF 12hr                   0.07        0.10        0.12        0.09        0.08
Snow 12hr                     T           1           2
Rain shwrs              C  L  L
Snow                                                  C  C  C  C  C  C  C  C  C
Snowshwrs            S  C  L  L  L  L  L  L  L  C  C
Winter Storm                        A  A  A  A  A  A  A  A  A  A  A  A  A  A


Date               Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             9    20       1    17       0    19       0    15
Temp          14    9 18 18  6    1 12 17  4    1 17 17  4    0  8 15
Dewpt         12    8 12 13  4    0  7  8  1   -2  9  8  2   -3  2  6
PWind dir           E     W       N     W      SW     W      NE     N
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    OV   OV OV B1 B2   OV OV B1 B2   B2 SC SC SC   OV OV OV
PoP 12hr           40    30      30    20      20    10      20    30
Snow           C    C  C  C  C    C  S  S  S    S        S    S  C  C

$$
MTZ014-212300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
310 AM MST Tue Feb 21 2017

Date                Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      45          28          37          16          27
Temp             34 34 40 44 44 38 35 32 30 28 30 35 36 26 22 20 17 16 21 25 27
Dewpt            28 27 29 29 30 25 23 25 23 22 20 19 23 17 16 15 12 12 12 12 14
RH               78 75 64 55 57 59 61 75 75 78 66 52 59 68 77 81 80 84 68 57 57
Wind dir         SW  W  W  W  W SW SW  W  W  W  W  W  W  W  W  W  W  W NW NW  N
Wind spd          3  4 10 16 11  9 10  9  8 10 11 10  8  8  6  6  5  5  6  6  6
Clouds           OV B2 B1 B1 B1 B2 OV B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 OV OV B2
PoP 12hr                     40          20          20          20          30
QPF 12hr                   0.01        0.01        0.02        0.01        0.02
Snow 12hr                 00-00           T           T
Rain shwrs              S           S              S
Snow                                                        S  S  S  S  C  C  C
Snowshwrs         C  C              S  S  S  S  S  S


Date               Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            10    25       7    25       7    28      11    25
Temp          18   10 18 25 14    7 18 25 13    7 17 28 17   11 15 25
Dewpt         13    6  7  8  8    2  5  9  7    2  5 11 11    7  6 13
PWind dir           N     W       W     W      SW     S      NE     N
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2   B1 B1 B2 B2   B2 B2 B1 B1   B1 SC FW B2   OV OV OV
PoP 12hr           30    20      20    20      20    10      20    30
Snow           C    C  S  S  S    S  S  S  S    S        S    S  C  C

$$
MTZ055-212300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
310 AM MST Tue Feb 21 2017

Date                Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      47          26          36          13          26
Temp             36 36 43 46 44 35 33 33 29 26 31 36 33 23 19 17 13 15 21 24 26
Dewpt            30 30 30 29 28 24 22 24 23 21 22 23 20 17 14 13 10 12 13 12 13
RH               79 79 60 51 53 64 63 69 78 81 69 59 58 77 80 84 87 88 71 60 57
Wind dir         SW  W  W  W SW SW SW SW SW  W  W  W NW NW NW NW NW NW NW NW  N
Wind spd         10 16 23 26 20 12 13 10  9  8  9  6  5  5  5  5  4  4  5  5  5
Wind gust        26 34 36 41 34
Clouds           OV B2 SC B1 B1 B1 OV B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 OV OV OV
PoP 12hr                     30          20          30          20          30
QPF 12hr                   0.01        0.01        0.03        0.03        0.02
Snow 12hr                 00-00           T           T
Rain shwrs        C  C  S                          C
Snow                                                  S  S  S  S  S  S  C  C  C
Snowshwrs         C  C              S  S  C  C  C  C
High Wind         W  W  W  W  W


Date               Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             9    25       4    25       6    29      13    31
Temp          14    9 17 25  9    4 16 25 10    7 19 29 16   14 23 31
Dewpt         10    6  8 11  5    0  7  9  4    3 10 13 11   11 15 18
PWind dir           N    NW      SW     S      SW     S      SE    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV   OV B2 B2 OV   B1 B2 OV B1   B1 SC SC B2   OV OV B2
PoP 12hr           30    30      20    20      20    10      20    30
Snow           C    C  C  C  S    S  S  S  S    S        S    S  C  S

$$
MTZ055-212300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
310 AM MST Tue Feb 21 2017

Date                Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      34          17          28           7          23
Temp             33 32 34 33 33 29 24 21 19 17 23 27 26 17 11  9  8  8 17 22 22
Dewpt            31 29 29 27 26 25 20 18 18 16 17 18 19 16  8  8  7  6 10 10 13
RH               92 88 82 78 75 85 84 88 96 96 77 68 74 96 87 96 96 91 73 59 68
Wind dir         SW SW  W SW SW SW SW SW SW SW SW SW  W  W  N  N  N  N  N  N  N
Wind spd         11 17 18 19 14 13 11 10 10  9 10 11  9  9  5  5  5  5  8  8  9
Wind gust        26 27
Clouds           OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV
PoP 12hr                     90          80          40          30          40
QPF 12hr                   0.21        0.07        0.06        0.02        0.04
Snow 12hr                     3           1           1
Snow                                                  C  C  C  C  C  C  C  C  C
Snowshwrs         D  D  D  D  D  L  L  L  C  C  C  C
Tstms                      S
Wind chill                                                    -1 -2 -2
Min chill                                                        -2    -3
High Wind         W  W  W  W  W
Winter Storm      W  W  W  W


Date               Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             2    20      -2    20       0    25      13    28
Temp           6    2 14 19  1    0 13 20  3    2 15 25 16   14 23 28
Dewpt          4    1  4 10 -1   -2  5  9  0    0  7 13 14   13 18 18
PWind dir           N    NW      SW     S      SW     S       S    SW
Wind char          LT    LT      LT    GN      GN    LT      GN    GN
Avg clouds    OV   OV OV B2 B1   B2 OV OV B1   B1 SC B1 OV   OV OV OV
PoP 12hr           40    40      30    30      20    20      40    40
Snow           C    C  C  C  C    C  C  C  S    S  S  S  C    C  C  C

$$
MTZ008-212300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
310 AM MST Tue Feb 21 2017

Date                Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      42          24          32          14          25
Temp             34 35 41 41 37 32 29 28 26 25 30 31 30 22 19 17 15 15 22 24 25
Dewpt            28 27 29 26 22 20 19 21 18 18 17 15 16 14 13 11 10 10 11  9 12
RH               78 72 62 55 54 61 66 75 71 74 58 51 55 71 77 77 80 80 62 52 57
Wind dir         SW SW SW SW SW SW SW SW SW SW  W  W NW NW  N  N  N  N  N  N  N
Wind spd          9 13 26 35 24 18 14 12 13 11  9  8  8  8  9  9  9  9  9  9  9
Wind gust        28 27 42 58 39
Clouds           OV B1 B1 B1 SC SC B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 OV OV OV
PoP 12hr                     30          20          30          20          30
QPF 12hr                   0.01           0        0.02        0.02        0.02
Snow 12hr                 00-00       00-00           T
Rain shwrs           C  S
Snow                                                  S  S  S  S  S  S  C  C  C
Snowshwrs         C  C                 S  S  S  C  C
High Wind         W  W  W  W  W


Date               Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            11    24       6    25       9    29      16    33
Temp          16   12 17 24  9    7 18 25 12   10 18 29 17   18 26 33
Dewpt         11    8  4  8  3    1  5  9  6    5  7 12 10   13 14 17
PWind dir           N     W       S     S       S     S       S     S
Wind char          GN    LT      LT    GN      GN    GN      GN    GN
Avg clouds    OV   OV B2 B1 SC   SC B2 B2 B1   SC SC B1 OV   OV OV OV
PoP 12hr           40    20      20    20      20    10      20    20
Snow           C    C  S  S  S    S  S  S  S    S        S    S  S  S

$$
MTZ011-212300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
310 AM MST Tue Feb 21 2017

Date                Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      44          28          35          24          31
Temp             36 33 41 44 40 33 31 30 29 29 32 35 33 29 28 26 26 24 29 30 30
Dewpt            31 29 32 33 34 31 30 29 29 27 27 24 25 24 25 22 24 21 22 20 22
RH               82 85 70 65 79 92 96 96100 92 81 64 72 81 88 85 92 88 75 66 72
Wind dir         SW SW  W  N  N NE NE  N  N  N  N  N  N  N  E  E  E  E NE NE NE
Wind spd          9  8  6  6  4  5  5  5  5  4  5  8  8  8  5  5  8  8 10 10  9
Clouds           SC B1 OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 OV OV OV
PoP 12hr                     60          60          50          50          30
QPF 12hr                   0.01        0.09        0.13        0.15        0.06
Snow 12hr                 00-00           1           1
Rain shwrs              C  C  L                    C
Snow                                                  C  C  C  C  C  C  C  C  C
Snowshwrs            S           L  C  L  C  C  C  C
Winter Storm                        A  A  A  A  A  A  A  A  A  A  A  A  A  A


Date               Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            17    27      10    21       6    22       9    20
Temp          21   17 23 26 13   10 14 21  9    7 16 22 12    9 14 20
Dewpt         19   16 17 18 10    8  8 13  7    6  9 13  9    7  7 11
PWind dir          NE     S       N    NW      NE    SW      NE     N
Wind char          LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    OV   OV OV OV B2   OV OV OV B2   OV B1 SC SC   B1 OV OV
PoP 12hr           30    30      20    30      20    10      10    30
Snow           C    S  C  C  S    S  C  C  S    S                C  C

$$
MTZ051-212300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
310 AM MST Tue Feb 21 2017

Date                Tue 02/21/17            Wed 02/22/17            Thu 02/23/17
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      47          30          36          20          28
Temp             34 37 45 47 44 36 33 32 31 31 35 34 33 27 24 21 20 21 27 27 26
Dewpt            27 31 33 30 30 26 24 27 26 27 25 22 22 21 19 16 16 15 18 15 18
RH               75 79 62 51 57 67 69 81 81 85 66 61 63 78 81 81 84 77 68 60 71
Wind dir         SW SW  W  W  W  W  W  W  W  W NW NW NW NW NW NW NW NW  N  N  N
Wind spd         10 10 16 20 16 13 11 11 11 12 14 13 10 10  8  8  8  8 11 11 10
Clouds           OV OV OV B2 B2 B2 B2 B2 OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     50          50          40          30          30
QPF 12hr                   0.04        0.04        0.11        0.05        0.05
Snow 12hr                 00-00           1           1
Rain shwrs           C  C  S  S  S              C
Snow                                                  C  C  C  C  C  C  C  C  C
Snowshwrs         C  C           S  C  C  C  C  C  C
Tstms                      S
High Wind               W  W  W
Winter Storm                        A  A  A  A  A  A  A  A  A  A  A  A  A  A


Date               Fri 02/24/17  Sat 02/25/17  Sun 02/26/17  Mon 02/27/17
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            13    24       8    23       7    27       8    22
Temp          18   13 23 22 13    8 20 23 14    7 22 26 13    8 19 21
Dewpt         15   11 11 13 10    5  8 11  8    2  7 13  7    5  9 11
PWind dir           N     W      NW     W       W    SW      SE    NW
Wind char          GN    LT      LT    LT      GN    GN      GN    GN
Avg clouds    B2   B2 B2 OV OV   B2 OV B2 B2   OV B1 SC SC   OV OV OV
PoP 12hr           30    30      20    30      20    10      20    30
Snow           C    C  C  C  S    S  C  C  S    S        S    S  C  C

$$
weather.gov/greatfalls




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.