Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
678 FOUS55 KTFX 122006 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 205 PM MDT Sun May 12 2024 MTZ312-131000- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 205 PM MDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed 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 49 75 47 62 44 Temp 77 78 66 58 54 50 61 72 74 70 59 53 51 48 53 57 60 60 54 50 47 45 Dewpt 43 44 45 44 43 39 41 39 40 40 41 42 42 42 45 47 45 42 43 43 42 40 RH 30 30 47 59 66 66 48 30 29 33 51 66 71 80 74 69 58 51 66 77 83 82 Wind dir SW SW S SW SW SW SW W W W W W W W NW N N NW SW SW SW SW Wind spd 6 9 5 8 10 10 13 14 16 13 10 6 6 8 10 11 9 6 4 5 5 8 Clouds SC B1 SC FW FW FW CL SC SC B1 B1 B1 B1 OV OV B2 B2 B1 B1 B1 B1 SC PoP 12hr 40 30 40 80 40 QPF 12hr 0 0 0.02 0.16 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C C C D D L L C C S S Tstms S S S S S C C S S Date 05/15/24 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 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 48 75 48 61 40 57 39 62 Temp 63 67 52 49 68 71 56 49 56 57 45 41 54 56 44 40 55 59 Dewpt 40 38 40 38 41 41 38 36 36 35 34 34 34 34 32 32 35 34 PWind dir W SW SW W NW N NW N NW Wind char GN GN GN GN BZ GN GN GN GN Avg clouds SC SC B1 B1 B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 20 20 30 40 30 40 30 30 Rain shwrs S S S S S C C C C C C C C C C C C $$ MTZ303-131000- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 205 PM MDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 48 72 46 62 42 Temp 77 77 66 57 52 49 60 70 71 68 57 52 48 47 49 55 60 60 53 48 45 43 Dewpt 39 40 40 39 38 37 37 37 36 37 41 43 44 43 43 42 42 39 40 41 40 39 RH 25 26 38 51 59 63 42 30 28 32 55 71 86 86 80 61 51 46 61 77 82 86 Wind dir W W W W W W W W W NW NW NW NW NW N N NW NW W SW W W Wind spd 18 20 12 11 10 11 16 24 26 26 10 8 10 10 14 13 10 10 5 8 8 8 Clouds FW SC SC FW SC SC SC SC SC B1 B1 B2 B2 B2 B2 B1 B1 SC B1 B1 SC SC PoP 12hr 0 30 50 60 20 QPF 12hr 0 0 0.08 0.10 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C L L S S S S Tstms S C S S S S S S S Date 05/15/24 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 70 47 71 42 57 36 55 35 59 Temp 63 67 51 47 66 67 51 43 51 55 43 37 49 54 41 36 54 58 Dewpt 38 36 39 37 40 38 39 35 33 33 33 32 31 32 33 31 32 33 PWind dir W W W W NW N NW NW NW Wind char GN GN BZ BZ BZ GN GN GN GN Avg clouds SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 20 20 30 30 40 30 30 20 20 Rain shwrs S S S S C C C C C C C C C S S S S $$ MTZ319-131000- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 205 PM MDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed 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 51 77 50 67 46 Temp 78 78 70 61 55 51 60 71 75 73 64 58 53 50 55 61 65 63 58 52 49 46 Dewpt 37 35 37 38 38 38 38 36 35 35 36 38 38 38 39 41 43 41 41 41 40 38 RH 23 21 30 42 53 61 44 28 23 25 35 47 57 63 55 48 45 44 53 66 71 73 Wind dir W W W W SW SW W W W W W W W W NW NW N NW NW W W SW Wind spd 10 12 9 9 5 5 10 14 18 18 12 10 8 8 9 13 12 10 6 5 5 5 Clouds SC SC FW CL FW FW FW FW SC SC SC SC B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 0 30 20 70 30 QPF 12hr 0 0 0 0.08 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C L L C C Tstms S S C C S S Date 05/15/24 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 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 73 49 79 52 70 43 63 42 67 Temp 64 71 56 50 71 75 59 53 63 64 50 43 57 61 48 42 59 63 Dewpt 39 36 38 36 41 37 37 36 35 34 34 33 34 30 33 31 35 33 PWind dir W W SW W W NW NW NW NW Wind char GN GN GN BZ BZ GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC B1 B1 SC SC B1 SC B1 B1 B1 PoP 12hr 20 10 20 20 30 30 40 20 30 Rain shwrs S S S S S C C S S C S S S C $$ MTZ326-131000- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 205 PM MDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 45 74 43 65 41 Temp 73 76 64 55 50 46 57 68 73 68 56 52 47 44 50 59 63 62 53 48 45 42 Dewpt 37 37 39 38 37 36 41 40 40 42 43 42 41 38 41 40 42 41 41 41 40 38 RH 27 24 40 53 61 68 55 36 30 39 62 69 79 79 71 49 46 46 64 77 82 86 Wind dir NW NE SE S S S W NW W W E SE S S W W NW NW N S SW SW Wind spd 6 8 5 6 6 4 4 11 14 14 10 6 5 4 5 10 10 11 6 5 4 3 Clouds SC SC B1 SC B1 B1 FW FW B1 B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 5 40 40 70 40 QPF 12hr 0 0.01 0.13 0.08 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C L L C C S Tstms S C S C C C C Date 05/15/24 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 68 42 76 46 70 38 64 37 64 Temp 60 66 51 43 66 74 55 47 64 66 48 39 58 61 46 38 56 63 Dewpt 40 38 38 35 38 41 37 34 37 36 36 32 36 36 35 32 35 36 PWind dir W S SW SW W NE NW NE NW Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 B1 SC SC SC SC SC SC SC B1 B1 SC SC B1 B1 B1 B1 B1 PoP 12hr 30 10 20 20 30 30 40 30 40 Rain shwrs S C S S S C C S S C C S S C Tstms S S $$ MTZ330-131000- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 205 PM MDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed 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 37 64 35 57 33 Temp 67 66 54 46 40 37 48 62 62 56 48 42 38 36 42 54 57 54 45 39 35 33 Dewpt 28 28 35 36 34 33 35 35 35 36 40 38 37 34 35 35 35 34 36 35 33 32 RH 23 24 48 68 79 85 60 36 36 47 74 86 96 92 76 48 43 46 70 85 92 96 Wind dir W W S S S SE S SW SW SW SE S W SW NW W NW NW N N N N Wind spd 9 10 6 3 2 2 3 11 13 11 5 4 2 2 3 5 6 9 5 3 2 3 Clouds FW SC B1 B1 FW SC SC SC B1 B2 B2 SC B1 B1 B1 B2 B2 B1 SC B1 B1 B1 PoP 12hr 10 70 60 70 30 QPF 12hr 0.01 0.11 0.22 0.10 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L S S C C L L C C Tstms C C S S S C C S S Date 05/15/24 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 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 33 66 37 65 32 61 32 59 Temp 55 59 40 33 60 63 45 37 61 63 41 32 58 59 39 32 55 57 Dewpt 34 28 32 28 34 33 34 31 33 29 31 26 28 23 29 27 27 26 PWind dir N NE SW SW SW SW SW W W Wind char LT GN GN GN GN GN GN GN GN Avg clouds B1 B1 SC SC SC SC SC FW FW SC SC FW FW B1 SC SC SC B1 PoP 12hr 30 5 20 20 20 20 30 20 30 Rain shwrs C S S S S C S S C Snowshwrs S Tstms S $$ MTZ328-131000- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 205 PM MDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 45 72 43 64 41 Temp 73 74 63 54 49 46 55 69 71 67 56 50 46 43 50 59 63 62 53 48 44 41 Dewpt 31 29 34 35 36 37 38 35 31 34 36 37 37 36 37 35 34 35 38 38 38 37 RH 21 19 34 48 61 71 53 28 23 29 47 61 71 76 61 40 34 36 57 68 79 85 Wind dir NW NW N SW S S SW W W W NW SW SW SW NW N NW N N N W W Wind spd 10 10 9 5 8 8 6 14 19 18 11 5 6 5 5 8 10 13 10 5 5 5 Clouds SC SC SC SC SC FW FW SC B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC B1 B1 B1 PoP 12hr 5 40 20 50 20 QPF 12hr 0 0 0.03 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S C C C C S S Tstms S S S S S S Date 05/15/24 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 68 43 75 47 71 40 66 38 66 Temp 60 67 50 43 68 73 54 47 66 69 49 40 60 64 46 39 58 62 Dewpt 34 29 34 33 35 31 35 33 32 27 30 30 30 25 31 30 31 29 PWind dir NW W SW W W NW W N N Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 SC SC SC SC FW FW FW FW FW FW FW FW SC SC B1 SC SC PoP 12hr 5 5 5 5 10 10 20 10 20 Rain shwrs S S Tstms S $$ MTZ305-131000- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 205 PM MDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed 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 50 77 48 69 45 Temp 74 75 65 58 54 51 59 73 75 70 60 55 51 48 53 62 67 65 57 51 48 45 Dewpt 47 46 49 47 45 44 44 47 45 46 48 49 47 46 46 45 45 42 42 42 41 42 RH 38 36 56 67 71 77 57 40 34 42 64 80 86 93 77 54 45 43 57 71 77 89 Wind dir S SW W SE SW SW SW W W NW NW W W W NW N NW NW NW SW SW SW Wind spd 6 10 9 10 8 10 13 13 14 13 9 6 6 8 12 13 13 12 6 5 5 5 Clouds FW SC B2 B1 SC SC FW CL B1 B2 B1 B1 B1 B2 B2 B1 B1 B1 SC SC B1 SC PoP 12hr 60 40 50 50 20 QPF 12hr 0.03 0 0.07 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C C C C C C C S S Tstms S S S C S S S S S Obvis H Date 05/15/24 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 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 71 47 75 46 61 37 59 39 64 Temp 65 68 53 47 68 70 54 47 56 56 45 38 54 56 44 39 57 62 Dewpt 43 41 43 41 44 44 44 41 39 36 37 34 36 37 36 35 36 37 PWind dir W SW SW W NW N NE NW NW Wind char GN GN GN GN BZ GN GN GN GN Avg clouds SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC B1 SC B1 PoP 12hr 30 30 30 40 40 30 30 20 30 Rain shwrs C C S C C C C C C C S C S S S C Tstms S S $$ MTZ314-131000- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 205 PM MDT Sun May 12 2024 Date 05/12/24 Mon 05/13/24 Tue 05/14/24 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 47 71 45 59 41 Temp 69 69 59 53 50 48 59 68 71 68 56 51 47 46 50 55 58 57 50 46 43 42 Dewpt 43 43 46 44 42 40 41 40 40 41 43 42 42 40 43 46 46 43 43 41 39 39 RH 39 39 62 71 74 74 51 36 32 37 62 71 83 79 77 72 64 59 77 83 86 89 Wind dir NW NW SE S S SW W W W NW W W W W NW NW NW NW W SW SW SW Wind spd 9 6 5 8 8 8 11 13 13 12 10 9 9 10 12 13 13 12 8 6 5 5 Clouds FW B1 FW SC SC FW FW FW FW B1 B1 B1 B1 B2 B2 OV OV B2 B1 B1 B1 B1 PoP 12hr 30 20 50 80 40 QPF 12hr 0.06 0 0.03 0.16 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S L L D D C C S Tstms C C S C C C C Flood A A A A A A A Date 05/15/24 Thu 05/16/24 Fri 05/17/24 Sat 05/18/24 Sun 05/19/24 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 63 44 70 44 58 37 55 36 58 Temp 59 61 47 46 66 66 53 45 54 54 43 38 52 53 41 37 54 56 Dewpt 40 38 39 36 40 41 38 35 38 36 35 32 33 34 33 30 35 36 PWind dir W SW W W NW NW W W NW Wind char GN GN GN GN BZ BZ GN GN GN Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 50 30 30 40 40 40 40 30 40 Rain shwrs S C C S C C C C C C C S C C S C C Tstms S S S $$ http://www.weather.gov/greatfalls