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Point Forecast Matrices
National Weather Service Great Falls MT
227 AM MST Tue Feb 20 2018
MTZ012-202300-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
227 AM MST Tue Feb 20 2018
Date                Tue 02/20/18            Wed 02/21/18            Thu 02/22/18
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                      13         -12          17          -8          13
Temp            -18-13  4 13  8  1 -3 -5-10-10  6 17 12  4 -1 -3 -5 -7  5 13  6
Dewpt           -23-21 -7 -2 -5 -8-11-11-14-16 -5  2 -1 -3 -7 -8 -9-13 -5  1 -3
RH               77 66 59 50 54 65 68 74 82 74 60 51 55 72 75 78 82 74 62 58 66
Wind dir         SW SW SW SW SW  S  S SW SW SW SW SW SW SW SW SW SW SW  W NW  N
Wind spd          9 10 11 11 10  9  8  8  5  6  9 11 10 10 10  8  6  6  6  6  8
Clouds           SC SC SC B1 B2 B2 OV B1 SC SC FW FW FW FW FW FW FW FW SC SC B1
PoP 12hr                      5          10          20           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00                        
Snow                                      S  S                                 
Wind chill      -37-32-12 -1 -6-14-18-20-23-25 -8    -1-11-17-18-19-21 -7    -7
Min chill       -37   -36    -6   -18   -23   -27    -3   -17   -19   -23    -7
Wind Chill        Y  Y  Y                                                      
Date               Fri 02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18
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            -5    23      11    29      11    28      11    28
Temp          -5   -1 17 21 11   16 26 27 13   14 22 27 12   16 25 27
Dewpt        -10   -7  4  8  3    9 14 15  7   10 12 14  6   11 13 16
PWind dir           W    SW      SW    SW      SW    SW      SW    SW
Wind char          LT    BZ      BZ    BZ      GN    GN      GN    GN
Avg clouds    B1   SC FW SC SC   B1 B1 B1 B2   B2 B2 B1 B1   B1 B1 B1
PoP 12hr           10     5      10    20      20    20      20    20
Snow                                    S  S    S  S  S  S    S  S   
$$
MTZ010-202300-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
227 AM MST Tue Feb 20 2018
Date                Tue 02/20/18            Wed 02/21/18            Thu 02/22/18
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                      15         -15          15          -7          14
Temp            -13-11  4 15  8  0 -3 -8-12-14  4 15  8 -4 -7 -6 -6 -5  7 14  9
Dewpt           -19-17 -7  2 -1 -4 -6-11-15-18 -5  1 -3-10-12-12-12 -9 -2  2 -2
RH               73 74 59 55 66 83 86 86 86 81 65 53 60 75 78 74 74 82 66 58 60
Wind dir          W  W  W  W NW  N  W  W  W  W SW SW SW SW  W  W  W NW NW  N  N
Wind spd          6  9 10  9  9  6  4  6  6  6 10 12 11  9  8  8 10 10 10 10  8
Clouds           SC B1 B1 B2 OV OV B2 B1 SC FW FW FW FW FW FW SC B1 B1 B1 B1 B1
PoP 12hr                     10          20          10           0          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00                        
Snow                                S  S                                       
Wind chill      -29-29-11    -5-13-13-23-27-30-11    -7-20-23-21-24-22 -8    -3
Min chill       -40   -30    -5   -13   -27   -31    -7   -23   -24   -24    -3
Wind Chill        Y  Y  Y                                                      
Date               Fri 02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18
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            -5    23      11    26       8    23       8    24
Temp          -5   -2 19 20 12   14 24 24 12    8 18 23 12    9 21 22
Dewpt        -10   -9  5  7  5    8 15 12  7    4 10 12  7    5 12 12
PWind dir           W    SW       W     W       W     W      SW    SW
Wind char          GN    BZ      BZ    BZ      GN    GN      GN    GN
Avg clouds    B1   SC SC SC B1   B1 B1 B1 B2   B1 B1 B1 B1   B1 B1 B1
PoP 12hr           10     5      10    20      20    20      20    20
Snow                                 S  S  S    S  S  S       S  S  S
$$
MTZ014-202300-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
227 AM MST Tue Feb 20 2018
Date                Tue 02/20/18            Wed 02/21/18            Thu 02/22/18
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                      13          -7          19          -4          18
Temp            -14-11  4 13 10  3 -1 -2 -6 -4  9 19 16  7  3  0 -3 -3 11 18 14
Dewpt           -19-15 -8 -3 -1 -3 -6 -7-11 -8 -2  4  4  2 -2 -5 -8 -6 -1  4  2
RH               77 82 56 48 60 75 79 79 78 82 60 51 58 79 79 79 78 86 57 53 58
Wind dir          W SW  E  E SE SW  S SW SW SW  S SW  S SW SW SW  S NW  N  N  N
Wind spd          3  2  3  5  4  2  4  3  3  3  3  4  3  2  3  2  3  3  3  4  5
Clouds           SC SC SC SC B1 B2 B2 B2 B2 SC SC SC SC FW FW FW SC SC SC B1 B1
PoP 12hr                      5          10          20          10          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00                        
Snow                                      S  S                                 
Wind chill      -24    -3         -11-10-15-12             -4   -11-11         
Min chill       -24   -14         -11   -15   -16          -4   -11   -12      
Wind Chill        Y  Y  Y                                                      
Date               Fri 02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18
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    23      10    29      14    29      14    31
Temp           1   -2 16 22 12   13 25 28 15   17 25 28 17   15 27 30
Dewpt         -5   -8  2 10  4    7 12 16 10   12 12 16 11   10 15 20
PWind dir          NW    SW      SW    SW      SW     W      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1   SC SC SC SC   B1 B2 B1 B2   B1 B2 B1 B2   B1 B1 B2
PoP 12hr           20    10      10    20      30    20      20    20
Snow                S                S  S  C    C  S  S       S  S  S
$$
MTZ055-202300-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
227 AM MST Tue Feb 20 2018
Date                Tue 02/20/18            Wed 02/21/18            Thu 02/22/18
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                      10          -8          17          -5          19
Temp            -17-16 -1  8  8 -6 -7 -6 -6 -6  8 16 15  6  1 -1 -3 -4 11 19 16
Dewpt           -21-21-11 -6 -2-11-11-10-10-11 -2  1  4  1 -4 -5 -8 -9  0  4  4
RH               81 77 61 52 63 78 82 82 82 78 63 51 61 79 79 83 78 78 60 51 58
Wind dir         SE SE  N  N  E SE SE SE  S  S SW  W SW  S  S  S  S SE NW  N NE
Wind spd          3  2  2  3  3  5  4  5  4  5  4  4  4  5  4  4  3  4  3  4  3
Clouds           B1 B1 SC SC SC B1 B2 B1 B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 B1
PoP 12hr                     10          10          20          10          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00                        
Snow                                      S  S                                 
Wind chill      -27            -19-18-19-17-19 -1       -4 -9-11-11-15         
Min chill       -27   -28         -21   -20   -21          -9   -12   -16      
Date               Fri 02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18
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            -4    23       7    27      12    28      12    31
Temp           1   -4 13 23 10    9 22 26 15   13 22 27 15   14 27 30
Dewpt         -5  -10 -1  9  4    1  8 12  9    7 11 13  8    8 14 16
PWind dir          SE    SW      SW    SW      SW     W      SW    SW
Wind char          LT    LT      GN    LT      GN    LT      LT    LT
Avg clouds    B1   B1 SC SC SC   B1 B2 B2 B2   B2 B2 B2 B2   B2 B2 B2
PoP 12hr           10    10      10    20      30    30      20    20
Snow                                 S  S  C    C  C  S  S    S  S  S
$$
MTZ055-202300-
West Yellowstone-Gallatin MT
44.66N 111.11W Elev. 6700 ft
227 AM MST Tue Feb 20 2018
Date                Tue 02/20/18            Wed 02/21/18            Thu 02/22/18
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                       8         -16          13         -11          19
Temp            -23-26 -3  7  7 -5 -9-11-15-14  1 12 12  2 -3 -3-10 -8  9 19 15
Dewpt           -25-28-12 -6 -1 -9-11-14-17-16 -6  1  4 -1 -5 -5-12-10  2  7  4
RH               90 90 64 54 69 82 91 86 90 90 72 60 70 87 91 91 90 91 72 59 61
Wind dir         SE SE  W SW SW SW  S  S  S  S SW SW SW  S  S  S  S SE  S SW SW
Wind spd          3  2  2  9  9  5  6  5  5  5  9 11  9  4  5  4  4  4  5  9  6
Clouds           B2 B1 B1 B2 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 B1 B2 B2
PoP 12hr                     20          30          30          30          20
QPF 12hr                      0        0.02        0.02           0           0
Snow 12hr                 00-00           T           T                        
Snow                       S  S  S  C  C  C  C  S  S  C  C  S  S  S  S  S  S  S
Wind chill      -34       -7 -7-17-24-25-29-28-14 -2    -8-15-13-22-19 -1      
Min chill       -34   -27    -8   -24   -29   -31    -9   -15   -22   -23      
Date               Fri 02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18
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    20       2    21       8    24       9    26
Temp          -6  -10 13 18  5    3 12 21 12    9 18 24 13   10 21 26
Dewpt         -9  -12  5  8  2   -1  4 14  9    7 10 14 11    8 13 18
PWind dir           S    SW      SW    SW      SW    SW      SW    SW
Wind char          LT    LT      GN    GN      GN    GN      GN    GN
Avg clouds    B2   B1 B1 B1 B1   B2 B2 B2 OV   OV B2 B2 B2   B2 B2 B2
PoP 12hr           20    20      20    30      50    30      30    30
Snow           S    S  S     S    S  C  C  C    C  C  C  S    C  C  C
$$
MTZ008-202300-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
227 AM MST Tue Feb 20 2018
Date                Tue 02/20/18            Wed 02/21/18            Thu 02/22/18
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                      12          -8          14          -4          17
Temp            -20-20 -1  9 11 -1  1 -6 -8 -7  5 13 12  2  1 -3 -3 -3  8 17 13
Dewpt           -21-21 -9 -5 -2 -7 -3 -8-11-10 -5 -2 -2 -4 -3 -6 -7 -6 -3  4  0
RH               95 95 68 52 55 75 83 91 86 86 62 50 52 75 83 86 82 86 60 56 55
Wind dir          S  S  S  S  S  S  S  S  S  S  S SW  S  S  S  S  S SE  S  S  E
Wind spd          5  5  4  5  9  6  8  8  6  8  9 10  9  8  8  6  6  6  8  9  8
Clouds           SC B1 SC SC B1 B1 B1 B1 SC B1 B1 B1 B1 SC SC B1 SC B1 B1 B2 B1
PoP 12hr                     10          10          20          20          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00                        
Snow                                      S  S  S  S  S  S        S  S  S  S  S
Wind chill      -35-35-11 -1 -2-14-13-21-23-23 -9      -12-13-17-17-17 -4      
Min chill       -35   -38    -5   -14   -23   -24    -4   -13   -17   -18      
Date               Fri 02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18
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    22       7    27      11    28      12    31
Temp           3   -2 10 22 11    8 20 27 16   11 23 27 15   13 24 31
Dewpt         -2   -7  0  7  6    1  9 13 11    6 11 13 11    8 14 17
PWind dir          SE     S      SW     S       S    SW      SW     S
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1   SC SC SC SC   B1 B1 B2 B2   B2 B2 B1 B2   B1 B1 B1
PoP 12hr           20    10      10    20      30    20      20    20
Snow           S    S                S  S  C    C  S  S       S  S  S
$$
MTZ011-202300-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
227 AM MST Tue Feb 20 2018
Date                Tue 02/20/18            Wed 02/21/18            Thu 02/22/18
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                       8         -16           8         -15           8
Temp            -17-17 -2  8  5 -2 -6-10-15-15 -2  8  2 -6-12-14-15-12  0  8  3
Dewpt           -19-20-10 -2 -2 -7-11-14-18-18 -8  0 -3-11-16-17-18-15 -6  1 -3
RH               90 86 68 63 72 79 78 82 86 86 75 69 79 78 82 86 86 86 75 72 75
Wind dir         SW SW SW SW SW SW SW SW  S SW SW SW SE SE  S SW SW SW  W  W  W
Wind spd         10 11 13 12 11  8  5  5  5  5  6  8  8  6  5  4  5  8  8  8  6
Clouds           SC B1 B1 B1 B2 OV OV B1 B1 SC SC FW FW CL FW FW FW SC SC SC SC
PoP 12hr                      5          10          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00                        
Wind chill      -37-38-21 -8-11-17-19-23-29-29-15 -4-12-20-26-26-29-29-14 -4 -9
Min chill       -37   -40   -16   -19   -29   -31   -12   -26   -29   -31    -9
Wind Chill        Y  Y  Y                                                      
Date               Fri 02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18
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           -12    16       6    24       6    20       3    20
Temp          -9  -12  5 16  6   10 18 23  8    9 16 19  6    4 16 19
Dewpt        -13  -16 -2  9  2    6 10 15  3    6  9 11  2    1  9 12
PWind dir          SW    SW      SW    SW       W     W      SW    SW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC   SC SC SC SC   B1 B1 B1 B1   B1 B2 B1 B1   B1 B1 B1
PoP 12hr           10     5      10    10      20    20      20    10
Snow                                       S    S  S  S  S    S      
$$
MTZ051-202300-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
227 AM MST Tue Feb 20 2018
Date                Tue 02/20/18            Wed 02/21/18            Thu 02/22/18
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                      11         -11          17          -6          16
Temp            -20-16  4 11  5 -7 -9 -7-10 -8 10 17 11 -1 -3 -5 -6 -3 11 16  7
Dewpt           -26-24 -7 -4 -2-11-15-13-14-13  2  3  1 -4 -9-10-14 -9  1  4 -1
RH               73 66 59 50 72 82 74 74 82 78 69 53 63 87 75 78 67 75 63 58 69
Wind dir         SW SW  W NW  W  S  S  S  S  S SW SW SW  S  S  S SW SW NW  N NW
Wind spd          5  5  6  9  6  8  8  8  8  8  6  6  6  8  8  8  8  6  4  6  6
Clouds           B1 SC FW SC SC SC OV B2 SC SC SC FW FW FW CL CL FW FW SC SC SC
PoP 12hr                      5          10          10           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00                        
Wind chill      -35-31 -8 -2 -7-23-25-23-26-24 -1      -15-18-20-21-17       -5
Min chill       -39   -35    -7   -25   -26   -28         -18   -21   -21    -5
Wind Chill        Y  Y  Y                                                      
Date               Fri 02/23/18  Sat 02/24/18  Sun 02/25/18  Mon 02/26/18
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            -6    23      10    27      11    25      10    28
Temp          -6   -5 19 18 10   16 25 26 14   12 19 24 11   14 25 27
Dewpt        -12  -13  5 10  6    8 13 17 10    8  9 15  6   10 13 22
PWind dir          SW    SW      SW     W      SW     W       W    SW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC   SC FW FW FW   SC SC B1 B1   B1 B2 B1 B1   B1 B1 B1
PoP 12hr           10     5       5    10      20    30      20    10
Snow                                       S    S  C  S  S           
$$
http://www.weather.gov/greatfalls