409  
FOUS55 KTFX 140815  
PFMTFX  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
214 AM MDT FRI MAY 14 2021  
 
MTZ012-142300-  
GREAT FALLS-CASCADE MT  
47.47N 111.38W ELEV. 3663 FT  
214 AM MDT FRI MAY 14 2021  
 
DATE FRI 05/14/21 SAT 05/15/21 SUN 05/16/21  
MDT 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
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 67 40 72 43 79  
TEMP 46 40 52 61 67 67 56 49 44 40 54 67 71 71 60 51 47 43 59 72 78 78  
DEWPT 40 37 43 43 39 38 38 38 36 35 40 39 35 34 36 35 34 32 39 37 35 35  
RH 79 89 71 51 36 34 51 66 73 82 59 36 27 26 41 54 60 65 47 28 21 21  
WIND DIR W SW NW NE NE NE E S S SW SW E N E E S S S SW SW S S  
WIND SPD 6 6 6 8 8 8 5 5 6 5 6 5 5 5 5 6 9 9 10 10 9 6  
CLOUDS FW FW FW FW SC SC FW FW FW FW FW FW FW FW FW CL CL CL CL FW FW FW  
POP 12HR 20 10 10 5 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S S  
 
DATE MON 05/17/21 TUE 05/18/21 WED 05/19/21 THU 05/20/21  
MDT 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 46 84 48 80 49 75 46 67  
TEMP 56 46 77 82 58 48 75 76 57 49 70 72 53 46 64 63  
DEWPT 35 32 38 36 33 33 39 38 39 37 40 40 40 37 40 39  
PWIND DIR S SW SW W S SW SW SW  
WIND CHAR GN GN GN GN GN GN GN GN  
AVG CLOUDS FW FW FW CL FW FW FW FW SC B1 B1 B1 B1 B1 B1 B1  
POP 12HR 0 0 5 10 20 30 30 50  
RAIN SHWRS S S C C S C C  
TSTMS S S S  
 

 
MTZ010-142300-  
CUT BANK-GLACIER MT  
48.60N 112.39W ELEV. 3838 FT  
214 AM MDT FRI MAY 14 2021  
 
DATE FRI 05/14/21 SAT 05/15/21 SUN 05/16/21  
MDT 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
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 65 39 71 43 78  
TEMP 42 39 49 60 64 64 57 48 44 39 55 67 70 70 61 52 46 44 58 71 76 77  
DEWPT 38 36 40 38 37 36 36 35 34 32 38 35 34 34 33 33 32 31 35 34 34 33  
RH 86 89 71 44 37 35 45 60 68 76 53 30 26 26 35 48 58 60 42 26 22 20  
WIND DIR NW NW N N NE NE E SE W W SW SW W NW NW SW SW W SW SW SW SW  
WIND SPD 8 6 6 5 6 9 6 5 6 5 6 6 8 10 6 6 9 8 8 10 11 13  
CLOUDS FW FW FW SC B1 SC SC FW FW FW SC FW SC FW FW FW FW FW FW SC SC FW  
POP 12HR 20 20 5 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S S  
TSTMS S S S  
 
DATE MON 05/17/21 TUE 05/18/21 WED 05/19/21 THU 05/20/21  
MDT 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 46 80 47 76 48 71 44 64  
TEMP 55 47 75 78 56 47 71 74 56 48 67 69 51 44 62 63  
DEWPT 35 32 35 34 34 34 37 36 36 34 40 40 39 35 38 38  
PWIND DIR SW SW W W W SW W W  
WIND CHAR GN GN GN GN GN GN GN GN  
AVG CLOUDS FW FW FW FW FW FW FW FW SC B1 B1 B1 B1 B1 B1 B1  
POP 12HR 0 0 0 5 20 20 30 40  
RAIN SHWRS S S C C C C  
TSTMS S S  
 

 
MTZ014-142300-  
HELENA-LEWIS & CLARK MT  
46.61N 111.96W ELEV. 3893 FT  
214 AM MDT FRI MAY 14 2021  
 
DATE FRI 05/14/21 SAT 05/15/21 SUN 05/16/21  
MDT 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
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 70 44 74 45 81  
TEMP 49 45 54 65 70 69 60 53 48 44 54 67 72 73 63 54 50 45 56 71 79 80  
DEWPT 35 34 40 40 39 38 38 38 37 35 40 40 35 34 33 33 33 32 37 37 35 33  
RH 58 65 59 40 32 32 44 57 65 70 59 37 26 24 32 45 52 60 49 29 20 18  
WIND DIR W W NW N N N NE W W W NW N N N NW SW S S SE SE E E  
WIND SPD 4 4 3 6 9 10 5 4 3 2 3 5 6 10 5 5 3 2 2 5 6 8  
CLOUDS B1 B1 SC B1 B1 B2 SC SC SC SC FW FW FW FW FW FW FW CL CL CL CL FW  
POP 12HR 30 20 10 0 0  
QPF 12HR 0.03 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C C S S S  
TSTMS S S S  
 
DATE MON 05/17/21 TUE 05/18/21 WED 05/19/21 THU 05/20/21  
MDT 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 48 85 51 82 51 78 47 69  
TEMP 59 48 74 84 61 51 75 80 59 51 73 74 56 47 65 66  
DEWPT 33 31 36 35 34 34 40 39 38 36 41 40 38 36 40 38  
PWIND DIR S S W NW SW S W W  
WIND CHAR LT LT LT LT LT LT GN GN  
AVG CLOUDS FW CL CL FW FW SC FW SC B1 B1 SC B1 B1 B1 B1 B1  
POP 12HR 0 0 5 10 20 40 40 50  
RAIN SHWRS S S S C C C C C  
TSTMS S S S  
 

 
MTZ055-142300-  
BOZEMAN-GALLATIN MT  
45.78N 111.16W ELEV. 4475 FT  
214 AM MDT FRI MAY 14 2021  
 
DATE FRI 05/14/21 SAT 05/15/21 SUN 05/16/21  
MDT 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
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 69 40 70 39 77  
TEMP 45 39 52 63 69 67 56 48 44 40 52 63 69 69 59 50 43 40 54 67 74 76  
DEWPT 36 33 40 40 38 38 41 39 38 36 41 42 40 38 40 39 35 34 39 38 35 34  
RH 70 79 63 43 32 34 57 71 79 85 66 46 35 32 49 66 73 79 57 34 24 22  
WIND DIR SE SE NW NW NW N SE NW W SE NW N N NE E E E SE SE SE N E  
WIND SPD 4 3 2 3 4 6 6 5 3 2 2 3 5 6 5 4 4 3 1 2 3 5  
CLOUDS B1 B1 B1 B2 B1 B2 B1 B1 B1 B2 B1 SC SC SC FW FW CL FW CL CL CL CL  
POP 12HR 30 20 20 0 5  
QPF 12HR 0.01 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C C S S S S S S  
TSTMS S S S S S  
 
DATE MON 05/17/21 TUE 05/18/21 WED 05/19/21 THU 05/20/21  
MDT 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 41 82 45 80 45 76 43 69  
TEMP 51 41 73 81 56 45 74 76 54 45 71 73 52 43 65 65  
DEWPT 35 32 40 36 38 34 39 39 40 36 42 41 39 35 39 39  
PWIND DIR SE SW SE SW SE S SE SW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS CL CL CL CL FW FW FW SC B1 B1 SC B1 B1 B1 B1 B1  
POP 12HR 0 5 5 10 20 40 30 50  
RAIN SHWRS S S C C C C C  
TSTMS S S  
 

 
MTZ055-142300-  
WEST YELLOWSTONE-GALLATIN MT  
44.69N 111.11W ELEV. 6644 FT  
214 AM MDT FRI MAY 14 2021  
 
DATE FRI 05/14/21 SAT 05/15/21 SUN 05/16/21  
MDT 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
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 64 31 63 28 69  
TEMP 35 31 44 62 64 57 48 40 34 31 45 60 63 60 49 39 32 29 45 63 69 67  
DEWPT 28 28 32 30 28 29 34 34 31 31 34 33 32 32 34 32 29 28 32 29 29 29  
RH 75 88 62 30 25 34 58 79 89100 65 36 31 35 56 76 88 96 60 27 22 24  
WIND DIR W E NE W N NW NE N N E N N N N NE NE NE NE E E NE NE  
WIND SPD 2 1 1 3 8 5 3 2 2 1 2 3 6 6 3 2 2 1 1 4 5 5  
CLOUDS B1 B2 B1 B1 B2 B2 B1 B2 B1 B2 B2 B1 B1 B1 SC FW FW FW FW FW FW FW  
POP 12HR 40 30 30 5 10  
QPF 12HR 0.01 0.01 0.01 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S C C S S S C C  
SNOWSHWRS S  
TSTMS S S C C  
 
DATE MON 05/17/21 TUE 05/18/21 WED 05/19/21 THU 05/20/21  
MDT 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 29 72 32 72 33 67 32 61  
TEMP 42 30 67 68 44 32 69 66 43 33 64 61 41 32 58 55  
DEWPT 31 27 32 30 33 28 34 35 34 29 32 33 32 28 28 27  
PWIND DIR E S S S SE S S S  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS FW FW FW FW SC SC SC SC B1 SC SC B1 B1 B1 B1 B1  
POP 12HR 5 10 10 20 20 40 40 50  
RAIN SHWRS S S S C C C C C  
SNOWSHWRS S C C  
TSTMS S S  
 

 
MTZ008-142300-  
DILLON-BEAVERHEAD MT  
45.26N 112.55W ELEV. 5357 FT  
214 AM MDT FRI MAY 14 2021  
 
DATE FRI 05/14/21 SAT 05/15/21 SUN 05/16/21  
MDT 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
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 67 40 69 39 76  
TEMP 46 41 48 61 67 65 55 47 44 40 48 63 68 67 57 48 44 39 51 66 74 75  
DEWPT 28 28 33 33 31 34 35 35 37 34 38 38 33 34 35 34 34 31 35 34 29 29  
RH 49 59 56 35 26 31 47 63 76 79 68 39 27 29 43 58 68 73 54 30 19 18  
WIND DIR SW S N N N N NE NE SE E N N N N N E SE S N N N N  
WIND SPD 5 5 5 4 8 10 10 5 5 5 5 5 9 11 8 5 5 6 4 2 5 8  
CLOUDS B1 B2 B2 B2 B2 B2 B2 B1 SC B1 B1 SC SC SC SC FW CL CL CL CL CL CL  
POP 12HR 20 20 10 0 5  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S S S S S  
TSTMS S  
 
DATE MON 05/17/21 TUE 05/18/21 WED 05/19/21 THU 05/20/21  
MDT 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 42 80 45 77 45 73 41 65  
TEMP 53 42 73 78 55 45 71 72 53 45 68 70 50 41 60 62  
DEWPT 32 29 35 31 33 32 34 34 37 36 37 35 36 33 34 32  
PWIND DIR E SW SW SW SE S S SW  
WIND CHAR LT LT LT LT LT LT GN GN  
AVG CLOUDS CL CL FW FW SC SC SC SC B1 SC SC B1 B1 B1 B1 B1  
POP 12HR 0 5 5 10 20 40 40 50  
RAIN SHWRS S S C C C C C  
TSTMS S S S S  
 

 
MTZ011-142300-  
HAVRE-HILL MT  
48.54N 109.76W ELEV. 2585 FT  
214 AM MDT FRI MAY 14 2021  
 
DATE FRI 05/14/21 SAT 05/15/21 SUN 05/16/21  
MDT 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
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 69 43 74 46 80  
TEMP 45 42 51 64 68 68 59 50 45 43 57 69 73 73 62 54 50 46 61 75 79 79  
DEWPT 42 40 44 44 41 41 41 39 37 37 41 41 40 38 39 38 37 36 43 43 41 40  
RH 89 93 77 48 37 37 51 66 73 79 55 36 30 28 43 54 61 68 51 32 26 25  
WIND DIR W SW W NW N NE E SE SE SE S SW W W SW S S SW SW SW SW S  
WIND SPD 4 5 5 5 8 6 5 4 4 4 6 5 8 5 4 4 5 5 8 9 10 9  
CLOUDS FW SC FW FW SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC  
POP 12HR 20 0 10 0 0  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S S S S  
TSTMS S  
 
DATE MON 05/17/21 TUE 05/18/21 WED 05/19/21 THU 05/20/21  
MDT 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 50 85 52 82 53 80 51 73  
TEMP 58 50 78 84 60 52 76 81 60 53 75 78 59 51 68 69  
DEWPT 38 37 43 40 36 39 43 42 38 38 44 42 42 42 45 43  
PWIND DIR S SW SW NW E SE SE S  
WIND CHAR LT GN GN GN LT GN GN GN  
AVG CLOUDS SC FW FW CL FW FW FW FW SC B1 B1 SC B1 B1 B1 B1  
POP 12HR 0 0 5 5 20 20 20 40  
RAIN SHWRS S S S S S S C  
TSTMS S  
 

 
MTZ051-142300-  
LEWISTOWN-FERGUS MT  
47.05N 109.46W ELEV. 4144 FT  
214 AM MDT FRI MAY 14 2021  
 
DATE FRI 05/14/21 SAT 05/15/21 SUN 05/16/21  
MDT 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
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 64 39 68 41 75  
TEMP 41 39 52 60 64 63 53 44 42 39 55 65 67 67 55 46 43 42 58 69 74 74  
DEWPT 37 36 42 41 41 41 41 38 36 35 41 41 40 39 40 37 34 34 38 36 38 37  
RH 85 89 69 49 43 44 64 79 79 85 59 41 37 36 57 71 70 73 47 30 27 26  
WIND DIR S S W NW N NE E S SE SE E SE S W S S S S S S S S  
WIND SPD 5 4 3 6 9 5 4 5 5 4 4 5 6 5 4 5 5 5 3 5 6 5  
CLOUDS FW FW FW SC B1 SC SC SC FW FW SC SC SC SC FW FW CL CL CL CL FW FW  
POP 12HR 30 20 20 5 0  
QPF 12HR 0.01 0 0.01 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S C C S S S  
TSTMS C C S S S  
 
DATE MON 05/17/21 TUE 05/18/21 WED 05/19/21 THU 05/20/21  
MDT 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX 46 81 48 79 48 75 46 68  
TEMP 52 46 75 80 56 48 75 76 56 48 72 73 54 46 65 65  
DEWPT 35 32 38 35 37 34 40 40 39 36 41 40 40 38 40 39  
PWIND DIR S SW S NW SE SE S SW  
WIND CHAR LT LT LT LT LT LT GN GN  
AVG CLOUDS FW FW FW CL FW FW FW SC SC SC SC B1 B1 B1 B1 B1  
POP 12HR 0 0 5 10 20 30 30 40  
RAIN SHWRS S C C S S C  
TSTMS S S  
 

 
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