422  
FOUS55 KTFX 200131  
PFMTFX  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
730 PM MDT TUE OCT 19 2021  
 
MTZ012-201100-  
GREAT FALLS-CASCADE MT  
47.47N 111.38W ELEV. 3663 FT  
730 PM MDT TUE OCT 19 2021  
 
DATE 10/19/21 WED 10/20/21 THU 10/21/21 FRI  
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 29 61 38 63 38  
TEMP 38 35 32 32 36 51 59 56 48 44 42 42 45 57 61 58 48 43 42 42  
DEWPT 33 32 27 27 29 30 29 28 31 32 32 32 32 31 29 29 30 30 30 31  
RH 82 89 81 81 75 44 32 34 51 62 67 67 60 37 29 33 49 60 62 65  
WIND DIR E S SW S SE SE S S SW SW SW SW SW SW SW W SW S S S  
WIND SPD 12 13 10 11 12 13 14 12 11 14 16 13 17 26 19 12 10 9 9 10  
CLOUDS FW FW SC SC B2 B1 B1 SC B1 SC SC SC SC CL CL FW FW FW SC SC  
POP 12HR 0 5 5 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 10/22/21 SAT 10/23/21 SUN 10/24/21 MON 10/25/21 TUE 10/26/21  
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 40 60 36 59 37 59 36 55  
TEMP 62 63 48 45 55 55 42 41 54 54 42 40 53 53 42 41 52 50  
DEWPT 33 33 32 30 29 26 27 28 30 29 30 30 31 31 30 28 27 25  
PWIND DIR S SW SW SW SW S S SW SW  
WIND CHAR GN GN BZ GN GN GN GN GN BZ  
AVG CLOUDS SC SC B2 B1 B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B1 SC  
POP 12HR 5 30 10 10 10 10 20 30 20  
RAIN C S S C C S  
 

 
MTZ010-201100-  
CUT BANK-GLACIER MT  
48.60N 112.39W ELEV. 3838 FT  
730 PM MDT TUE OCT 19 2021  
 
DATE 10/19/21 WED 10/20/21 THU 10/21/21 FRI  
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 28 56 34 60 33  
TEMP 37 34 30 29 31 44 53 53 45 41 39 38 40 54 58 55 44 40 37 36  
DEWPT 34 31 27 27 31 28 28 28 32 33 31 30 30 29 28 29 30 31 30 30  
RH 89 89 88 92100 53 38 38 60 73 73 73 67 38 32 37 57 70 75 79  
WIND DIR SE SE SE SE SE SE SE S SW SW SW SW SW W W W W SW SW S  
WIND SPD 13 12 11 9 10 17 16 13 13 13 20 21 19 26 24 18 16 14 13 12  
WIND GUST 39 35  
CLOUDS FW FW SC SC B2 B2 B2 B1 SC SC SC SC FW FW FW FW SC SC SC B1  
POP 12HR 0 5 5 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 10/22/21 SAT 10/23/21 SUN 10/24/21 MON 10/25/21 TUE 10/26/21  
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 65 37 55 32 55 33 55 34 51  
TEMP 56 60 46 41 50 50 39 36 49 50 39 36 49 50 40 37 47 46  
DEWPT 33 35 34 31 29 26 28 28 28 26 29 28 30 29 29 26 24 23  
PWIND DIR S S W SW SW SW S W W  
WIND CHAR GN GN BZ GN GN GN GN GN BZ  
AVG CLOUDS B1 B1 B2 B2 B1 SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B1 SC  
POP 12HR 10 40 10 10 10 10 10 30 10  
RAIN C C C S  
 

 
MTZ014-201100-  
HELENA-LEWIS & CLARK MT  
46.61N 111.96W ELEV. 3893 FT  
730 PM MDT TUE OCT 19 2021  
 
DATE 10/19/21 WED 10/20/21 THU 10/21/21 FRI  
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 63 37 65 39  
TEMP 45 39 37 36 36 51 61 59 52 47 43 41 40 54 62 61 53 47 44 42  
DEWPT 30 28 30 29 34 35 34 32 35 34 34 32 33 35 33 32 32 32 32 33  
RH 55 64 75 75 92 54 36 36 52 60 70 70 76 48 33 33 44 56 62 70  
WIND DIR W W W SW S SE S S W SW S SW S SW W SW SW S S S  
WIND SPD 5 4 2 2 2 5 6 10 6 4 3 3 5 9 14 10 5 3 2 3  
CLOUDS CL FW FW B1 B2 SC SC B1 B1 SC SC SC SC SC FW SC SC FW SC SC  
POP 12HR 0 5 5 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 10/22/21 SAT 10/23/21 SUN 10/24/21 MON 10/25/21 TUE 10/26/21  
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 39 59 36 58 38 57 35 54  
TEMP 56 63 50 43 51 56 46 40 50 54 45 43 50 54 45 39 48 51  
DEWPT 37 33 33 31 33 29 29 30 33 31 31 32 34 32 31 28 29 26  
PWIND DIR SE S SW S S S S SW W  
WIND CHAR LT LT LT LT LT LT LT GN GN  
AVG CLOUDS SC SC B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1  
POP 12HR 10 30 20 20 30 30 30 50 30  
RAIN C S S S C C C S C C C C C S  
 

 
MTZ055-201100-  
BOZEMAN-GALLATIN MT  
45.78N 111.16W ELEV. 4475 FT  
730 PM MDT TUE OCT 19 2021  
 
DATE 10/19/21 WED 10/20/21 THU 10/21/21 FRI  
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 28 59 33 63 33  
TEMP 39 34 32 30 34 49 57 55 45 41 39 37 39 52 60 57 47 41 38 36  
DEWPT 34 32 32 30 34 35 32 33 33 34 34 34 35 35 32 34 35 34 34 33  
RH 82 92100100100 58 38 43 62 76 82 89 85 52 35 42 63 76 85 89  
WIND DIR SE SE NW S NE NW W S SE SE SE S S SW W SW S S S SE  
WIND SPD 5 3 3 3 3 5 12 11 6 5 3 4 3 10 13 13 8 4 3 4  
CLOUDS FW FW FW B1 B1 SC B1 SC SC SC B1 SC SC FW FW SC SC FW FW SC  
POP 12HR 0 5 0 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
OBVIS F F F  
 
DATE 10/22/21 SAT 10/23/21 SUN 10/24/21 MON 10/25/21 TUE 10/26/21  
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 37 57 33 56 35 56 32 53  
TEMP 55 60 46 40 50 52 41 36 49 51 39 38 49 51 40 36 47 48  
DEWPT 36 34 35 34 34 31 33 32 34 33 33 34 35 35 33 32 30 28  
PWIND DIR S S SW S S S SE S SW  
WIND CHAR LT LT LT LT LT LT LT LT GN  
AVG CLOUDS SC SC B2 B1 B2 B1 B1 B2 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1  
POP 12HR 5 20 20 30 30 40 40 60 40  
RAIN S S S S C C C C C C C L C C C  
 

 
MTZ055-201100-  
WEST YELLOWSTONE-GALLATIN MT  
44.69N 111.11W ELEV. 6644 FT  
730 PM MDT TUE OCT 19 2021  
 
DATE 10/19/21 WED 10/20/21 THU 10/21/21 FRI  
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 25 48 29 50 28  
TEMP 36 30 30 30 33 43 48 45 38 33 31 30 33 44 49 46 37 32 30 29  
DEWPT 27 27 28 28 34 33 33 33 34 32 31 30 32 31 30 30 32 31 30 29  
RH 69 88 92 92104 67 56 62 85 96100100 96 60 48 53 82 96100100  
WIND DIR SE E SE SE SE SW SW S S S S S S SW SW SW SW S S SE  
WIND SPD 2 2 8 8 3 10 14 11 6 10 10 9 6 16 16 11 6 4 4 6  
CLOUDS SC SC B2 OV B2 B1 SC SC SC B1 B1 B1 B1 SC SC FW FW FW SC SC  
POP 12HR 20 5 5 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
OBVIS F  
 
DATE 10/22/21 SAT 10/23/21 SUN 10/24/21 MON 10/25/21 TUE 10/26/21  
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 53 30 44 29 40 29 41 26 37  
TEMP 47 48 36 32 40 40 31 31 38 39 32 32 39 39 32 28 35 34  
DEWPT 31 28 31 31 30 28 31 31 32 29 31 32 34 31 31 28 28 25  
PWIND DIR S S SW S S S S S SW  
WIND CHAR LT LT GN LT GN LT LT GN GN  
AVG CLOUDS SC SC B1 B2 B2 B2 B2 OV OV B2 B2 B2 OV B2 B2 OV B2 B2  
POP 12HR 5 30 40 50 60 60 70 70 60  
RAIN S C C C C C L L C L L L L L  
SNOW C C C C L L C L L L L  
 

 
MTZ008-201100-  
DILLON-BEAVERHEAD MT  
45.26N 112.55W ELEV. 5357 FT  
730 PM MDT TUE OCT 19 2021  
 
DATE 10/19/21 WED 10/20/21 THU 10/21/21 FRI  
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 54 33 59 36  
TEMP 39 36 36 35 36 47 52 50 43 39 38 37 36 48 57 55 45 42 40 38  
DEWPT 30 30 30 30 33 33 30 30 30 30 30 29 30 32 31 32 32 33 32 31  
RH 70 79 79 82 89 58 43 46 60 70 73 72 79 54 37 41 60 70 73 76  
WIND DIR E S S S S S S S S S S S S SW SW SW S S S S  
WIND SPD 9 6 6 8 8 9 16 20 11 6 8 9 9 9 14 14 11 9 9 10  
CLOUDS FW FW B1 B2 B2 B1 B1 SC B2 B1 B1 B1 SC FW FW FW SC SC SC SC  
POP 12HR 0 5 0 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 10/22/21 SAT 10/23/21 SUN 10/24/21 MON 10/25/21 TUE 10/26/21  
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 61 34 53 33 50 35 49 30 48  
TEMP 53 56 43 38 46 48 39 36 44 46 39 38 43 45 38 34 42 43  
DEWPT 34 31 31 29 31 28 28 29 31 29 30 31 33 32 29 26 26 25  
PWIND DIR S S S S S S S SW SW  
WIND CHAR GN GN GN GN GN GN GN GN GN  
AVG CLOUDS SC B1 B1 B2 B2 B1 B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B1 B1  
POP 12HR 10 30 20 40 50 50 70 60 50  
RAIN C C S S S C C C C C L L L C C C  
SNOW C C  
 

 
MTZ011-201100-  
HAVRE-HILL MT  
48.54N 109.76W ELEV. 2585 FT  
730 PM MDT TUE OCT 19 2021  
 
DATE 10/19/21 WED 10/20/21 THU 10/21/21 FRI  
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 27 58 33 64 33  
TEMP 38 34 32 30 33 49 56 54 43 39 37 36 41 56 62 58 47 41 39 36  
DEWPT 24 23 24 25 31 28 28 28 29 30 31 31 33 34 31 29 29 29 29 28  
RH 57 64 72 81 92 44 34 36 57 70 79 82 73 43 31 33 49 62 67 72  
WIND DIR E E E E E E SE E SE SW SW SW SW W W W SW S S SE  
WIND SPD 12 9 10 12 12 16 16 11 9 8 8 10 10 21 20 11 8 5 6 9  
WIND GUST 32  
CLOUDS FW FW FW FW SC FW B1 B2 B1 SC SC SC FW FW FW FW FW FW SC SC  
POP 12HR 0 0 0 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 10/22/21 SAT 10/23/21 SUN 10/24/21 MON 10/25/21 TUE 10/26/21  
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 39 61 34 61 36 63 36 57  
TEMP 58 62 48 42 55 56 43 38 54 57 44 38 56 58 45 40 52 52  
DEWPT 33 33 34 32 32 28 28 30 33 30 31 30 34 32 34 31 30 25  
PWIND DIR SE SE SW S SW S SE S W  
WIND CHAR LT GN GN GN GN GN GN GN BZ  
AVG CLOUDS SC SC B1 B2 B1 SC B1 B1 B1 SC B1 B1 B1 B1 B2 B2 B1 SC  
POP 12HR 0 30 10 10 10 10 10 30 10  
RAIN S C C S  
 

 
MTZ051-201100-  
LEWISTOWN-FERGUS MT  
47.05N 109.46W ELEV. 4144 FT  
730 PM MDT TUE OCT 19 2021  
 
DATE 10/19/21 WED 10/20/21 THU 10/21/21 FRI  
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 27 58 36 62 36  
TEMP 34 32 31 30 36 52 57 53 45 43 40 39 44 56 60 56 45 41 40 39  
DEWPT 29 30 29 27 30 28 28 28 30 31 31 31 32 29 29 28 28 29 29 29  
RH 82 92 92 88 79 39 33 38 55 62 70 73 62 35 31 34 51 62 64 67  
WIND DIR E SE SE SE SE S SW S S SW SW SW SW W W W W S S S  
WIND SPD 9 8 8 8 9 12 12 11 10 10 8 6 8 16 19 13 11 9 8 6  
CLOUDS SC FW FW FW SC SC B2 B1 SC SC SC SC SC FW FW FW FW FW FW FW  
POP 12HR 0 0 0 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
 
DATE 10/22/21 SAT 10/23/21 SUN 10/24/21 MON 10/25/21 TUE 10/26/21  
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 39 58 36 58 36 59 35 54  
TEMP 62 61 48 42 54 53 41 39 54 53 42 39 54 54 43 40 50 49  
DEWPT 32 32 33 30 28 26 28 29 31 30 31 29 31 30 32 31 27 24  
PWIND DIR S S SW S SW S S SW W  
WIND CHAR GN GN GN LT GN LT GN GN GN  
AVG CLOUDS FW SC B1 B2 B2 B1 B1 B2 B1 SC B1 B1 B1 B2 B2 B2 B1 SC  
POP 12HR 0 20 10 10 10 10 20 30 20  
RAIN S S C S S  
 

 
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