Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
745 FOUS53 KDMX 090902 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 301 AM CST Tue Dec 9 2025 IAZ060-092200- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 301 AM CST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 CST 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 38 27 30 18 29 Temp 26 27 34 36 37 39 37 35 30 28 29 27 25 23 22 20 20 22 27 29 27 Dewpt 24 25 31 34 36 37 33 30 19 22 22 20 20 20 18 17 17 19 21 23 23 RH 92 92 89 92 96 92 85 82 63 78 75 74 81 88 84 88 88 88 78 78 85 Wind dir W SW S SW SW W W W NW NW NW NW NW NW NW N E E E NE NE Wind spd 6 5 9 16 17 23 24 28 27 23 19 16 9 5 3 3 3 4 5 6 6 Wind gust 19 29 31 36 41 50 50 41 31 26 19 Clouds B1 B2 B2 OV OV B2 B1 B1 B2 B1 B2 B2 B2 B2 B2 B2 OV B2 B2 B2 OV PoP 12hr 30 30 20 10 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain C Snow S S S S S S S Wind chill 19 20 27 26 27 29 26 22 15 14 16 15 16 16 16 20 22 20 Min chill 17 18 26 25 13 11 13 14 13 13 18 Wind Y Y Y Y Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 CST 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 18 27 4 11 -6 13 4 29 Temp 26 21 26 16 10 5 9 8 0 -5 7 8 8 13 26 24 Dewpt 23 21 18 10 4 2 4 2 -3 -8 -3 0 4 8 19 19 PWind dir NE NW N N N NE SE SW Wind char LT GN GN LT LT LT LT GN Avg clouds OV OV B2 B2 B2 OV B2 B2 SC SC SC SC SC B1 B1 SC PoP 12hr 20 20 10 30 5 5 5 5 Snow S S S C C $$ IAZ039-092200- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 301 AM CST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 CST 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 35 22 29 10 22 Temp 21 22 30 33 33 38 34 33 27 27 28 25 20 19 16 14 12 14 20 22 20 Dewpt 18 20 28 31 33 36 32 31 18 23 22 19 17 16 14 12 11 12 16 16 16 RH 88 92 92 92100 92 92 92 68 85 78 78 88 88 92 92 96 92 84 77 84 Wind dir W W S S SW W W NW NW NW NW NW NW NW NW NW NW NW NW NW N Wind spd 8 5 8 16 19 25 27 32 32 27 23 18 11 9 5 4 3 3 5 6 6 Wind gust 29 36 42 52 48 42 34 31 21 Clouds B2 B2 OV OV OV OV B1 B2 OV B2 B2 B2 OV B2 B2 B2 B2 B1 B2 B2 B2 PoP 12hr 50 60 20 5 30 QPF 12hr 0.02 0.04 0 0 0 Snow 12hr 00-00 T 00-00 Frzg rain S Rain S L Snow C S S S S C C C Wind chill 11 14 22 22 22 26 21 19 10 12 14 11 8 7 7 6 6 8 12 14 11 Min chill 10 9 20 21 6 6 7 6 3 4 10 Winter Storm A A A A A Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 CST 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 11 22 -3 6 -12 6 -4 23 Temp 17 15 20 9 1 -2 3 3 -5 -11 2 1 -1 7 19 18 Dewpt 16 14 15 5 -2 -4 -1 -3 -9 -12 -5 -6 -3 3 13 14 PWind dir N NW NW NW NW NW S SW Wind char GN BZ GN GN LT GN GN GN Avg clouds B2 B2 B2 B2 B2 OV B2 B2 SC SC FW SC B1 B2 B1 SC PoP 12hr 40 20 10 40 5 5 10 10 Snow C C S C C $$ IAZ048-092200- Ames-Story IA 41.99N 93.62W Elev. 936 ft 301 AM CST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 CST 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 37 24 29 15 26 Temp 23 23 32 34 36 39 36 34 27 26 27 25 22 21 19 17 17 19 24 25 24 Dewpt 21 21 29 32 36 37 33 28 18 22 22 20 19 19 17 15 15 17 20 21 21 RH 92 92 88 92100 92 89 78 68 85 81 81 88 92 92 92 92 92 84 84 88 Wind dir W SW S S SW W W NW NW NW NW NW NW NW NW N NE E SE NE NE Wind spd 5 5 8 16 17 24 26 31 29 24 19 16 10 5 3 2 2 3 5 6 6 Wind gust 28 29 39 44 56 50 42 32 27 20 Clouds B1 B2 B2 OV OV B2 B1 B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV PoP 12hr 40 30 10 10 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain S C Snow C C C C C Wind chill 16 16 25 24 26 28 23 20 11 11 14 12 11 13 13 17 17 16 Min chill 12 13 23 22 9 6 9 11 10 11 15 Winter Storm A A A A A Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 CST 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 15 25 2 8 -10 10 0 26 Temp 23 18 23 12 6 3 6 4 -3 -9 3 3 3 10 23 21 Dewpt 22 18 17 8 2 0 2 1 -5 -10 -3 -4 2 7 18 18 PWind dir NE NW NW N NW NE SE SW Wind char LT GN GN LT LT LT GN GN Avg clouds OV OV B2 B2 OV OV B2 B2 SC SC SC SC SC B1 B1 SC PoP 12hr 30 20 20 40 5 5 5 10 Snow C C S S C C $$ IAZ004-092200- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 301 AM CST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 CST 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 36 18 22 8 21 Temp 24 24 31 34 36 34 32 23 20 20 21 20 16 14 13 11 10 14 19 21 19 Dewpt 23 23 29 32 35 31 28 17 14 16 17 16 13 12 10 9 8 12 16 17 17 RH 96 96 92 92 96 89 85 77 77 84 84 84 88 92 87 91 91 92 88 84 92 Wind dir W S S SW W W W NW NW NW NW NW NW NW NW N E SE SW NE NE Wind spd 6 8 12 25 24 29 32 34 32 27 24 18 10 5 4 4 4 5 6 9 9 Wind gust 25 39 41 46 51 56 51 40 Clouds B2 B2 B2 OV B2 B1 B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV B2 OV PoP 12hr 70 30 20 10 40 QPF 12hr 0.02 0.01 0 0 0 Snow 12hr 00-00 T 00-00 Frzg rain S Rain L C S Snow S S S C C C C C Wind chill 16 15 21 22 24 20 17 4 1 2 4 5 4 5 5 4 2 5 10 11 8 Min chill 14 14 20 17 -1 -2 2 3 2 3 8 Winter Storm A A A A A Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 CST 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 6 17 -6 3 -15 8 -3 22 Temp 18 9 15 2 -3 -5 0 -2 -9 -14 1 1 3 9 20 16 Dewpt 15 9 8 -2 -7 -8 -3 -6-12 -15 -5 -4 0 5 16 13 PWind dir NW NW NW N NW SW S W Wind char GN BZ GN GN LT GN GN GN Avg clouds OV B2 B2 B2 OV OV B2 B1 SC SC SC SC B1 B1 B1 B1 PoP 12hr 40 20 20 40 5 5 5 10 Snow C C S S C C $$ IAZ035-092200- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 301 AM CST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 CST 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 37 21 26 11 24 Temp 20 21 32 34 35 36 33 31 23 23 25 23 19 18 15 13 13 16 21 23 22 Dewpt 18 19 29 32 35 34 31 26 16 20 19 19 17 16 13 12 12 15 18 20 19 RH 92 92 88 92100 92 92 81 74 88 78 84 92 92 92 96 96 96 88 88 88 Wind dir W S S SW SW W W NW NW NW NW NW NW NW N N E E SE NE NE Wind spd 5 5 9 17 19 25 28 32 28 24 19 16 8 4 2 2 2 3 5 6 6 Wind gust 27 33 40 46 59 50 40 32 Clouds B2 B2 B2 OV OV B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV PoP 12hr 30 20 10 10 40 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain C S Snow C C C C C Obvis BS Wind chill 13 13 24 23 24 24 20 15 6 7 11 10 9 11 10 13 15 14 Min chill 11 12 23 19 5 3 7 9 6 7 14 Winter Storm A A A A A Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 CST 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 11 21 -2 5 -14 9 -1 24 Temp 20 14 19 7 2 -1 3 1 -7 -13 1 1 3 8 21 19 Dewpt 18 14 13 4 -2 -3 -1 -3-10 -14 -5 -4 1 6 17 16 PWind dir N NW N N NW SW S SW Wind char LT GN GN LT LT LT GN GN Avg clouds OV B2 B2 B2 OV OV B2 B2 SC SC SC SC B1 B1 B1 SC PoP 12hr 30 20 20 40 5 5 5 10 Snow C C S S C C $$ IAZ094-092200- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 301 AM CST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 CST 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 43 29 34 21 34 Temp 30 31 39 42 43 43 41 38 32 30 33 32 28 26 25 23 24 27 32 34 32 Dewpt 28 29 35 38 38 38 36 29 25 22 22 22 20 21 21 20 20 22 24 26 26 RH 92 92 85 86 82 82 82 70 75 72 63 66 71 81 84 88 84 81 72 72 78 Wind dir W SW SW SW SW W NW W NW NW NW NW NW NW N NE E SE SE E NE Wind spd 6 6 10 14 14 19 23 27 28 24 20 14 6 5 3 3 4 5 5 6 5 Wind gust 24 29 26 34 40 48 51 44 32 26 19 Clouds B1 B2 B1 B2 B2 B2 B2 FW B1 SC SC B1 B2 B2 B2 B2 OV B2 B2 B2 B2 PoP 12hr 5 20 5 10 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain S Wind chill 22 24 32 35 35 35 31 26 18 16 20 21 21 19 18 20 26 28 26 Min chill 21 21 33 31 17 13 18 18 16 17 25 Wind Y Y Y Y Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 CST 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 21 31 8 16 -1 17 10 34 Temp 28 23 30 20 14 9 15 13 5 1 13 13 12 16 30 28 Dewpt 27 23 21 13 7 4 6 5 1 -4 0 3 5 10 20 21 PWind dir NE NW N NE N NE SE SW Wind char LT GN GN LT LT LT GN GN Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B1 SC SC SC SC B1 B1 SC PoP 12hr 5 10 5 10 0 0 5 5 $$ IAZ017-092200- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 301 AM CST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 CST 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 35 20 25 8 19 Temp 25 25 30 32 33 35 33 27 23 24 23 21 17 16 13 10 9 12 17 19 17 Dewpt 24 24 29 31 33 34 30 22 18 20 18 17 14 13 11 8 7 10 14 16 14 RH 96 96 96 96100 96 89 81 81 84 81 84 88 88 91 91 91 91 88 88 88 Wind dir W W S S SW W W NW NW NW NW NW NW NW NW NW NW NW W NW N Wind spd 6 5 8 16 19 25 28 33 31 26 23 18 10 6 4 3 2 3 5 6 5 Wind gust 27 31 37 43 56 50 41 34 29 20 Clouds B2 B2 OV OV OV B2 B2 OV OV B2 B2 B2 OV B2 B2 B2 B2 B2 B2 B2 OV PoP 12hr 80 50 20 5 40 QPF 12hr 0.06 0.02 0 0 0 Snow 12hr 00-00 T 00-00 Frzg rain L Rain L C S Snow S C S S S S C C C Obvis BS Wind chill 17 18 22 21 21 23 19 10 5 8 7 6 5 6 5 4 6 9 11 9 Min chill 16 15 21 19 2 3 3 4 2 3 7 Winter Storm A A A A A Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 CST 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 7 19 -6 2 -14 6 -4 21 Temp 15 10 17 4 -3 -5 0 -1 -7 -13 -1 0 1 7 18 16 Dewpt 14 10 11 0 -6 -7 -3 -5-10 -15 -6 -6 -2 3 15 13 PWind dir N NW NW NW NW NW S SW Wind char GN BZ GN LT LT GN GN GN Avg clouds B2 B2 B2 B2 B2 OV B2 B2 SC SC FW SC B1 B2 B1 B1 PoP 12hr 40 20 20 40 5 5 5 10 Snow C C S S C C $$ IAZ049-092200- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 301 AM CST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 CST 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 36 23 28 12 24 Temp 21 21 31 33 34 38 35 34 26 25 27 24 20 18 16 14 14 15 21 23 21 Dewpt 19 20 29 32 34 36 32 29 18 22 22 19 17 16 14 13 12 14 18 19 18 RH 92 96 92 96100 92 89 82 71 88 81 81 88 92 92 96 92 96 88 84 88 Wind dir W SW S S SW W W W NW NW NW NW NW NW NW NW NW NE W N NE Wind spd 6 5 8 16 18 24 26 31 29 26 23 18 10 6 4 3 2 3 5 5 5 Wind gust 27 36 42 52 49 43 34 28 Clouds B1 OV B2 OV OV OV B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 40 40 20 10 40 QPF 12hr 0.01 0.01 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain S C Snow S S C C C C C Obvis BS Wind chill 12 13 23 22 23 27 22 20 9 9 12 10 9 9 9 14 16 13 Min chill 9 11 22 21 8 5 7 7 6 8 13 Winter Storm A A A A A Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 CST 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 13 24 -1 6 -12 8 -3 24 Temp 19 15 22 9 2 0 4 3 -5 -11 2 0 0 8 20 19 Dewpt 18 15 16 6 -1 -2 1 -1 -8 -12 -4 -5 -2 4 16 16 PWind dir NE NW NW N NW NW S SW Wind char LT GN GN LT LT LT GN GN Avg clouds OV B2 B2 B2 B2 OV B2 B2 SC SC SC SC SC B2 B1 SC PoP 12hr 30 20 20 40 5 5 10 10 Snow C C S S S C C $$ IAZ086-092200- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 301 AM CST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 CST 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 42 28 33 19 29 Temp 28 30 38 40 40 44 39 39 31 29 31 29 26 25 23 21 21 22 27 29 27 Dewpt 26 28 33 35 38 38 35 31 21 24 24 23 21 21 19 18 17 19 21 23 23 RH 92 92 82 82 92 79 85 73 66 81 75 78 81 84 84 88 84 88 78 78 85 Wind dir W SW SW S SW W W W NW NW NW NW NW NW NW NW NW NE SE NE NE Wind spd 9 8 9 16 18 21 24 28 29 26 23 19 11 9 5 4 4 4 5 6 6 Wind gust 20 31 33 40 43 50 50 46 36 31 24 Clouds SC B2 B1 OV OV B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV PoP 12hr 10 30 10 10 30 QPF 12hr 0 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain S S Snow S S C C S S S Wind chill 19 22 32 32 31 35 28 27 17 14 18 16 16 15 16 14 15 16 21 22 20 Min chill 18 19 30 28 16 12 13 12 12 13 19 Wind Y Y Y Y Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 CST 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 19 29 5 12 -6 13 2 30 Temp 26 21 27 18 10 6 10 9 2 -5 7 7 6 11 26 24 Dewpt 23 21 20 13 5 2 4 4 -2 -7 -3 -1 2 7 18 19 PWind dir NE NW NW N NW N SE SW Wind char LT GN GN LT LT LT GN GN Avg clouds OV OV B2 B2 OV OV B2 B2 B1 SC SC FW SC B1 B1 SC PoP 12hr 20 20 5 30 5 5 10 10 Snow S S S C C $$