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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
315 PM MST Fri Nov 22 2024

MTZ312-231100-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
315 PM MST Fri Nov 22 2024

Date          Fri 11/22/24      Sat 11/23/24            Sun 11/24/24         Mon
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                      20          32           9          18           3
Temp             22 20 21 22 21 24 29 31 25 20 16 15 12 10 15 17 12  6  7  8  8
Dewpt            20 19 19 20 19 22 25 26 21 16 13 11  8  6 10 11  9  4  4  4  4
RH               92 96 92 92 92 92 85 81 84 84 88 84 84 83 80 77 87 91 87 83 83
Wind dir         NE  N NE NE NE NW  W NW  W  W NW NW NW  W NW  N  N NE  E SE  S
Wind spd          5  3  3  2  3  4  6 17 16  9  9  6  5  4  4  4  4  2  2  2  2
Clouds           OV OV OV OV OV OV B2 OV B2 B2 B2 OV B2 B2 B1 SC SC SC B1 B1 B2
PoP 12hr                     70          90          70          30          10
QPF 12hr                   0.05        0.08        0.04           0           0
Snow 12hr                     T           1           1
Snow              C           D  C  C  D  L  L  L  L  C  C
Obvis                                 BS
Winter Weath      Y  Y        Y  Y  Y  Y  Y  Y  Y  Y


Date           11/25/24  Tue 11/26/24  Wed 11/27/24  Thu 11/28/24  Fri 11/29/24
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          24      15    36      15    30      10    28      10    27
Temp          17 19 20   20 29 26 21   20 26 22 17   15 22 19 16   15 22 20
Dewpt         12 15 14   12 21 21 16   15 19 18 12   10 14 14 10    7 12 12
PWind dir         S      SW    SW      SW     W      SW    SW      SW    SW
Wind char        LT      LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B1 B1   B1 SC SC FW   SC B1 B1 B1   B1 B1 SC B1   B2 B2 B1
PoP 12hr          5       5     5       5    20      30    20      10    10
Snow                                          S  C    S  S  S

$$
MTZ303-231100-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
315 PM MST Fri Nov 22 2024

Date          Fri 11/22/24      Sat 11/23/24            Sun 11/24/24         Mon
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                      13          22           3          13          -2
Temp             17 14 16 16 14 17 20 19 14 10 10  8  6  4  9 12  7  2  3  4  3
Dewpt            15 13 14 13 13 16 19 18 11  7  6  4  2  1  6  8  4  0  0  1  1
RH               92 96 92 88 96 96 96 96 88 87 83 83 83 87 87 84 87 91 87 87 91
Wind dir         NE  E  E  E  E  E NE NW NW NW NW NW NW NW NW  N  N  N  N SE  S
Wind spd          5  4  4  4  5  5 11 23 23 18 14 12 10  8  9  5  3  2  2  2  3
Wind gust                             34 36
Clouds           OV OV OV OV OV OV OV OV B1 B2 B2 B2 B2 B2 B1 B1 B1 B2 B2 OV B2
PoP 12hr                     70          90          50          30          10
QPF 12hr                   0.07        0.30        0.04           0           0
Snow 12hr                     T           4           1
Snow                       S  D  L  D  D  C  C  C  C  C  C
Obvis                                 BS BS BS
Wind chill                               -5 -8 -7 -8 -8 -9 -3                -5
Min chill                                -6    -9   -11   -13    -2    -5    -6
Winter Storm                  W  W  W  W  W  W  W  W
Winter Weath      Y  Y


Date           11/25/24  Tue 11/26/24  Wed 11/27/24  Thu 11/28/24  Fri 11/29/24
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          18       6    30      10    25       4    21       4    22
Temp          10 13 12   12 24 23 18   16 21 15 11    9 16 14 11    8 15 15
Dewpt          7 11  9    9 20 19 14   12 17 13  8    5 12 11  6    4  9  9
PWind dir        SE      SW     W       W    NW      NW     W       W     W
Wind char        LT      LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2 B2 B1   B1 SC FW SC   SC B1 B1 B1   B2 B1 B1 B2   B2 B2 B1
PoP 12hr          5       5     0       5    20      20    20      10    10
Snow                                          S  S    S  S

$$
MTZ319-231100-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
315 PM MST Fri Nov 22 2024

Date          Fri 11/22/24      Sat 11/23/24            Sun 11/24/24         Mon
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                      28          45          18          33          12
Temp             30 29 28 30 29 31 38 43 36 32 29 26 20 18 23 31 26 21 19 18 16
Dewpt            25 25 24 26 27 29 33 33 28 24 22 19 15 14 18 20 19 14 13 13 12
RH               81 85 85 85 92 92 82 67 72 72 75 74 81 84 81 63 74 74 77 80 84
Wind dir         NW NW  W  W SE  E  S SW  W  W  W NW NW NW NW NW NW SW  S  S  S
Wind spd          3  2  2  2  2  3  5  9  9  6  5  4  2  2  2  2  2  2  2  2  2
Clouds           B2 B2 B2 OV OV OV B2 B2 B2 B2 B2 B2 B2 B1 B1 SC FW SC B1 B1 B1
PoP 12hr                     70          80          70          30           5
QPF 12hr                   0.05        0.05        0.04        0.01           0
Snow 12hr                 00-00       00-00           T
Frzg drzl               S     S  S
Frzg rain         C        L
Rain              C        L        L  D
Sleet
Snow                             D        L  L  L  L  C  C
Winter Weath      Y  Y


Date           11/25/24  Tue 11/26/24  Wed 11/27/24  Thu 11/28/24  Fri 11/29/24
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          34      18    38      19    36      17    32      14    33
Temp          25 31 26   22 30 32 27   24 30 31 26   21 24 27 22   19 24 26
Dewpt         18 20 18   16 21 22 19   18 21 21 17   14 16 16 13   11 14 15
PWind dir         S       S    SW      SW     W      SW    SW      SW    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1 SC   SC B1 B1 SC   SC B1 B1 SC   B1 B1 B1 B1   B2 B1 B1
PoP 12hr          0       5     5      10    20      20    20      10    10
Snow                                          S  S    S  S  S

$$
MTZ326-231100-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
315 PM MST Fri Nov 22 2024

Date          Fri 11/22/24      Sat 11/23/24            Sun 11/24/24         Mon
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                      29          48          18          34          11
Temp             45 38 35 32 31 33 43 46 40 34 31 28 24 20 27 32 27 19 18 17 16
Dewpt            33 32 30 27 26 27 33 33 34 32 29 27 23 19 24 26 22 18 16 15 14
RH               62 79 82 81 81 78 67 60 79 92 92 96 96 96 88 78 81 96 92 92 92
Wind dir          S  E  E SE SE SE  S SW  W SW  W  W  W  W  W  W  W SE  S  S SE
Wind spd          6  6  6  5  5  6  8 11  9  6  5  5  4  2  2  2  1  2  3  4  4
Wind gust                          18 26
Clouds           B2 B2 B2 B2 B2 B2 B1 B2 OV OV B2 B2 B2 B2 B2 SC SC SC SC SC SC
PoP 12hr                     40          70          80          40           5
QPF 12hr                      0        0.04        0.20        0.03           0
Snow 12hr                 00-00       00-00           1
Frzg drzl                  S  S  S
Rain              C  C  S           C  L  D  D
Snow                                         D  L  L  C  C


Date           11/25/24  Tue 11/26/24  Wed 11/27/24  Thu 11/28/24  Fri 11/29/24
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          34      15    36      14    33      11    31       9    33
Temp          26 29 22   20 29 31 23   20 27 28 20   16 24 25 17   15 25 27
Dewpt         19 20 18   18 22 22 20   18 22 19 17   13 17 16 12   12 17 16
PWind dir         S       S    SW       S    SW       S    SW      SE    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC B1   B1 B1 B1 B1   B1 B1 B1 B1   SC SC SC B1   B2 B1 B1
PoP 12hr          0      10    10      20    20      30    10      20    10
Snow                               S    S  S  S  C    C        S    S

$$
MTZ330-231100-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
315 PM MST Fri Nov 22 2024

Date          Fri 11/22/24      Sat 11/23/24            Sun 11/24/24         Mon
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                      19          36          16          31           7
Temp             36 29 24 21 20 24 33 34 32 29 24 22 19 17 26 30 25 17 14 12 11
Dewpt            25 23 20 18 15 19 29 30 28 27 24 22 19 17 21 21 19 16 14 12 11
RH               64 78 84 88 81 81 85 85 85 92100100100100 81 69 78 96100100100
Wind dir          S SE  E SE  E  S  S SW SW SW SW SW SW SW SW SW SW  S  S  S  S
Wind spd          8  5  4  3  5 10 14 19 18 18 12  8  4  2  3  6  3  2  2  2  2
Wind gust                          26 33 28 31
Clouds           B2 B2 B1 B2 B2 OV OV OV OV OV B2 B2 OV OV B2 B1 B1 B1 B2 B2 B2
PoP 12hr                     20          90          90          70          20
QPF 12hr                      0        0.13        0.09        0.05           0
Snow 12hr                 00-00           1           1
Snow                             C  D  D  D  D  L  L  L  L  C  C  S  S        S


Date           11/25/24  Tue 11/26/24  Wed 11/27/24  Thu 11/28/24  Fri 11/29/24
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          29      10    30       8    27       5    24       4    26
Temp          23 24 17   14 25 26 16   12 23 23 12    8 19 20 10    7 20 21
Dewpt         17 16 16   14 21 20 16   12 18 16 11    7 14 13  8    6 14 13
PWind dir         S       S     S      SW    SW      SW    SW       S     S
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B1 B2   B2 OV B2 B2   B2 B2 B1 B1   B2 B2 B1 B1   B2 B2 B1
PoP 12hr         30      40    60      50    30      30    30      20    20
Snow           S  C  C    C  C  L  C    C  C  C  C    C  C  S  S    S  S  S

$$
MTZ328-231100-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
315 PM MST Fri Nov 22 2024

Date          Fri 11/22/24      Sat 11/23/24            Sun 11/24/24         Mon
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          44          19          34          13
Temp             45 40 37 35 32 33 42 43 36 31 28 27 24 20 29 34 28 22 19 18 16
Dewpt            33 31 30 28 24 26 31 28 28 27 24 22 21 18 22 21 21 17 14 13 12
RH               62 70 75 75 72 75 65 55 72 85 85 81 88 92 75 58 75 81 80 80 84
Wind dir          S  S  S  S  S  S  S SW SW SW  S SW  S  S SW SW  S  S  S  S  S
Wind spd          9 10 10  9 10 12 14 14 10  9  8  6  6  5  3  3  3  5  8  9 10
Wind gust                             25
Clouds           OV B2 OV OV B2 B1 B2 B2 B2 B2 B1 B2 B1 SC SC SC SC FW SC SC SC
PoP 12hr                     50          70          60          20           0
QPF 12hr                   0.01        0.03        0.04           0           0
Snow 12hr                 00-00       00-00           T
Drizzle                       L
Frzg drzl                     S  S
Rain                 S  C  S        L  L
Snow                 S  C  S  L  L     L  L  L  C  C  S  S


Date           11/25/24  Tue 11/26/24  Wed 11/27/24  Thu 11/28/24  Fri 11/29/24
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      14    32      13    30       9    29       9    31
Temp          26 28 19   17 26 27 21   18 25 25 17   13 22 23 16   13 23 24
Dewpt         17 19 15   14 19 21 16   14 18 17 12    9 14 15 10    9 13 14
PWind dir         S       S     S       S    SW       S     S       S     S
Wind char        GN      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC B1   B1 B1 B1 B1   SC SC SC SC   SC SC SC B1   B1 B1 SC
PoP 12hr          0       5    10      10     5      10     5      10     5

$$
MTZ305-231100-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
315 PM MST Fri Nov 22 2024

Date          Fri 11/22/24      Sat 11/23/24            Sun 11/24/24         Mon
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                      17          29           5          18          -4
Temp             21 19 19 19 19 19 25 26 21 15 12 11  9  6 13 17 12  4  2  1  1
Dewpt            19 18 19 18 18 19 21 21 19 13 10  8  5  4  9 10  7  2  0 -1 -1
RH               92 96100 96 96100 84 81 92 92 91 87 83 91 84 73 80 91 91 91 91
Wind dir          E  E  E  E  E  E  E  E  W  W  W  W  W  W  W  W  W  W  W NW  E
Wind spd         12 11 10 10 11 12 11 10 14 17 12 12 11 10 11 10  5  2  2  1  1
Clouds           OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B2
PoP 12hr                     70          90          50          20           5
QPF 12hr                   0.06        0.10        0.04           0           0
Snow 12hr                     T           1           1
Frzg rain                        C
Snow              L           D  C  C  D  C  C  C  C  S  S
Wind chill                                  -1 -2 -4 -6 -9
Min chill                                      -4    -6    -9          -4
Winter Weath      Y  Y        Y  Y  Y  Y  Y  Y  Y  Y


Date           11/25/24  Tue 11/26/24  Wed 11/27/24  Thu 11/28/24  Fri 11/29/24
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          18       0    24       5    23       2    19       1    21
Temp           9 11  6    5 15 16 12   11 17 16  9    7 14 13  8    7 14 15
Dewpt          5  8  5    4 12 12 11   10 14 12  8    6 10  9  5    5  9  9
PWind dir         E      SE    SW      SW     W       W    NW       E     W
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B1 B1   B1 B1 SC SC   B1 B2 B1 B1   B2 B2 B1 B1   B2 B2 B1
PoP 12hr         10      10     5       0    10      30    20      10    10
Snow                                             C    C  S  S

$$
MTZ314-231100-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
315 PM MST Fri Nov 22 2024

Date          Fri 11/22/24      Sat 11/23/24            Sun 11/24/24         Mon
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                      20          44           9          21           5
Temp             29 25 23 23 22 26 39 42 33 24 19 15 12 10 17 20 16 11 10 10 10
Dewpt            23 22 21 21 20 23 30 29 28 21 17 12 10  8 11 12 12  9  8  8  9
RH               78 88 92 92 92 88 70 60 82 88 92 88 91 91 77 71 84 91 91 91 96
Wind dir          E  E  E  E  E SE SE SW  W NW NW NW NW  W NW NW NW  W SW SW  S
Wind spd          5  5  5  5  6  6  9 10 16 13 10 10  8  5  5  5  2  2  2  2  2
Clouds           OV B2 B2 B2 OV B2 B1 B1 B2 B2 B2 OV B2 B2 B1 B1 SC SC SC B1 B1
PoP 12hr                     50          60          70          50          10
QPF 12hr                   0.01        0.01        0.07        0.01           0
Snow 12hr                 00-00       00-00           1
Frzg drzl                  S  L
Frzg rain         C
Rain                                S  C  L
Sleet
Snow              C        S     C  S        L  L  L  C  C  S  S
Winter Weath      Y  Y


Date           11/25/24  Tue 11/26/24  Wed 11/27/24  Thu 11/28/24  Fri 11/29/24
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          32      15    39      16    32      12    29       9    30
Temp          25 25 22   22 34 29 23   22 29 24 19   16 24 21 16   15 25 22
Dewpt         17 17 16   16 23 21 18   18 21 18 15   12 15 14 11    9 13 12
PWind dir         S      SW    SW      SW     W       W     W      SW    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 SC B1   SC SC SC SC   SC B1 B1 B1   B1 B1 B1 B1   B1 B2 B1
PoP 12hr          5       5     5       5    20      30    30      20    20
Snow                                          S  C    C  C  S  S    S  S  S

$$
http://www.weather.gov/greatfalls