Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
250 FOUS53 KDMX 090331 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 1030 PM CDT Fri Aug 8 2025 IAZ060-090900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 1030 PM CDT Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 74 86 70 86 67 Temp 80 78 74 79 84 85 84 78 75 72 71 76 81 83 78 73 71 68 68 Dewpt 72 71 71 72 73 73 74 74 72 70 69 72 73 73 71 70 69 67 67 RH 77 79 90 79 70 67 72 88 90 93 93 87 77 72 79 90 93 97 97 Wind dir S S S S SE E NE NE SE SE SE S S S SW W SW W W Wind spd 12 11 9 9 9 9 6 6 6 5 5 5 5 5 5 4 5 4 4 Clouds SC SC B1 B1 B2 B2 B1 B2 B2 B2 B2 B1 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 20 50 70 60 70 QPF 12hr 0 0.78 1.37 0.84 1.20 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L L L L C C L L L L L L C Tstms C C C C L L L C S S C L C C S Heat index 85 90 93 92 86 89 Max heat 89 84 92 96 89 88 90 Flood A A A A A A A A A A A A A A A Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 64 84 65 86 69 88 70 90 Temp 78 78 69 65 81 81 70 66 83 83 73 70 84 84 76 72 86 86 Dewpt 69 69 67 64 69 69 67 65 70 70 69 68 72 71 70 68 73 73 PWind dir W NW W SW S S S S S Wind char LT LT LT LT LT LT GN LT GN Avg clouds B2 B1 B1 SC SC SC SC SC SC FW FW SC SC FW FW FW FW FW PoP 12hr 40 20 10 10 20 20 20 10 5 Rain shwrs C C S S S S S Tstms S C S S S S S $$ IAZ039-090900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 1030 PM CDT Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 73 82 68 83 66 Temp 78 76 73 78 82 81 80 74 72 70 69 73 79 81 78 71 69 67 67 Dewpt 71 70 70 72 72 72 72 72 71 69 68 71 72 72 72 70 69 67 67 RH 79 82 90 82 72 74 77 93 97 97 97 93 79 74 82 97100100100 Wind dir S S S S SE SE E SE SE SE SE S S S SE S SE SW W Wind spd 16 12 11 11 10 10 6 5 6 6 5 5 6 5 5 4 4 3 3 Wind gust 26 Clouds SC B1 B1 B2 B2 B2 B1 B2 OV OV B2 B2 B1 B1 B1 B2 OV OV B2 PoP 12hr 30 50 70 50 70 QPF 12hr 0.21 0.17 1.16 0.55 1.22 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C L L L L C C C C L L L L C Tstms S C C C C L C L C C C C C C S S S S Heat index 87 86 Max heat 87 89 87 86 Flood A A A A A A A A A A A A A A A Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 63 83 63 84 66 84 69 87 Temp 78 78 67 65 80 79 67 65 80 80 69 67 81 82 72 70 84 84 Dewpt 69 69 66 64 68 69 66 64 68 69 67 66 71 72 69 68 73 73 PWind dir W W W SW SW SE S S S Wind char LT LT LT LT LT LT GN LT GN Avg clouds B2 SC B1 B1 SC FW SC SC SC FW FW SC SC SC FW SC FW FW PoP 12hr 30 20 10 10 20 30 30 20 10 Rain shwrs C S S S S C C S Tstms S S S C S S $$ IAZ048-090900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 1030 PM CDT Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 72 84 68 85 65 Temp 79 76 72 79 81 84 82 76 72 70 69 75 81 81 77 71 68 66 66 Dewpt 73 72 70 73 74 74 75 74 72 70 69 72 73 74 72 70 68 66 66 RH 82 87 93 82 79 72 79 94100100100 90 77 79 85 97100100100 Wind dir S S S S SE E E E E NE E SE S E S SE W W NW Wind spd 12 9 8 9 9 6 6 4 4 5 3 4 5 5 5 4 3 3 2 Wind gust 23 Clouds SC B1 B1 B1 B2 B1 B1 B2 B2 B2 B2 B1 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 30 50 70 50 70 QPF 12hr 0.06 0.11 1.60 1.07 0.91 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L L L L C C C C L L L L C Tstms C C C C L L L C S S C C C C S S Heat index 86 91 88 87 Max heat 87 89 92 85 86 89 Flood A A A A A A A A A A A A A A A Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 63 83 63 85 67 87 69 89 Temp 78 77 67 64 81 80 67 64 81 82 70 68 83 83 74 70 85 85 Dewpt 70 70 66 63 69 70 67 64 70 71 68 67 73 73 71 68 75 75 PWind dir NW W W S S SE S S S Wind char LT LT LT LT LT LT GN LT GN Avg clouds B1 B1 B1 SC SC FW SC SC FW FW SC SC SC FW FW FW FW FW PoP 12hr 30 20 10 10 20 30 20 20 5 Rain shwrs C S S S S C S S Tstms S S S S C S S $$ IAZ004-090900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 1030 PM CDT Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 82 64 83 62 Temp 78 73 68 73 79 82 80 71 68 67 65 73 80 82 78 70 66 64 62 Dewpt 74 71 67 67 68 68 69 68 67 65 63 68 68 68 68 66 63 61 60 RH 88 93 97 81 69 63 69 90 97 93 93 84 67 63 71 87 90 90 93 Wind dir S NW NW NE NE SW S S SW SW W NE NW NW N N N N NW Wind spd 11 9 8 6 5 5 4 3 3 4 3 4 5 5 5 4 4 4 4 Clouds B1 B2 B2 B2 B1 SC FW SC SC B1 B1 SC SC SC SC B1 B1 SC B1 PoP 12hr 40 30 10 10 20 QPF 12hr 0.18 0.01 0.01 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S S S Tstms C C C S S S S Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 82 62 83 62 84 65 85 68 88 Temp 79 78 65 63 80 79 66 63 80 80 69 66 81 81 72 69 83 84 Dewpt 64 66 62 61 66 67 63 60 67 69 66 65 70 71 69 66 72 73 PWind dir W SW SW S S SE S S S Wind char LT LT LT LT GN GN GN GN GN Avg clouds SC FW SC SC FW FW FW FW FW FW SC SC SC FW SC SC SC FW PoP 12hr 10 10 10 5 10 30 20 20 10 Rain shwrs S C S S Tstms S C S S $$ IAZ035-090900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 1030 PM CDT Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 72 83 68 84 64 Temp 80 76 72 75 81 83 82 75 70 68 68 75 80 82 78 70 66 65 64 Dewpt 74 73 71 72 72 73 73 72 70 68 67 71 73 73 71 69 66 65 64 RH 82 90 97 90 74 72 74 90100100 97 87 79 74 79 97100100100 Wind dir S S NW NE NE E E E E E E SE E N NE E NW NW NW Wind spd 13 9 8 8 6 6 5 4 3 4 2 3 4 5 4 3 3 3 3 Clouds SC B1 B2 B2 B2 B1 SC B1 B2 B2 B2 B1 SC B1 B1 B1 B2 B2 B1 PoP 12hr 30 60 40 30 40 QPF 12hr 0.07 0.13 0.40 0.19 0.71 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C C C C C C S S C C C C C C S Tstms S C S C C C C C C S S C C C C S Heat index 86 89 87 88 Max heat 87 87 90 84 86 89 Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 82 62 84 62 85 66 87 70 89 Temp 79 79 66 63 81 80 67 63 81 81 70 67 83 83 73 70 85 85 Dewpt 68 69 64 63 69 69 65 62 69 71 68 66 72 73 69 67 74 74 PWind dir NW SW SW S S SE S S S Wind char LT LT LT LT LT LT GN GN GN Avg clouds SC SC SC SC FW FW SC SC FW FW SC SC SC FW FW SC FW FW PoP 12hr 20 10 10 10 10 30 20 20 5 Rain shwrs S C S S Tstms S S S $$ IAZ094-090900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 1030 PM CDT Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 87 70 86 67 Temp 80 76 74 81 85 87 84 78 76 74 72 78 82 82 78 73 71 69 68 Dewpt 72 70 70 72 73 74 76 74 72 70 69 72 73 74 73 72 70 69 67 RH 77 82 87 74 67 65 77 88 87 87 90 82 74 77 85 97 97100 97 Wind dir S S S S S S S SE SE S SE S S S S S SW SW W Wind spd 11 11 10 11 10 9 6 5 6 8 6 6 6 6 5 5 5 4 4 Wind gust 23 23 20 21 Clouds SC SC SC SC B1 B1 SC B1 B2 B2 B2 B1 B1 B1 B1 OV OV OV B2 PoP 12hr 20 40 80 70 80 QPF 12hr 0 0.01 0.76 0.52 1.82 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C S C L L D C C L L D D D D C Tstms S S S C S C L L L C C C L L C C S Heat index 86 92 96 93 87 88 Max heat 87 94 99 89 90 91 Flood A A A A A A A A A A A A A A A Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 64 82 65 84 67 86 70 88 Temp 76 76 67 65 79 79 69 66 80 80 71 68 83 82 75 70 84 84 Dewpt 69 71 67 65 69 71 68 66 70 72 70 68 72 73 70 68 73 74 PWind dir SW NW W SW S S S S S Wind char LT LT LT LT LT LT LT LT GN Avg clouds B2 B1 B1 B1 SC SC SC SC SC SC FW SC FW FW FW FW FW FW PoP 12hr 50 20 20 10 20 20 20 10 5 Rain shwrs C C S S S S S S S S Tstms S C S S S S S S S S $$ IAZ017-090900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 1030 PM CDT Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 71 81 66 83 62 Temp 78 73 71 74 76 81 80 71 69 68 67 73 79 82 78 70 66 65 64 Dewpt 72 71 71 72 72 72 71 70 68 67 66 70 72 72 71 68 65 63 62 RH 82 93100 93 87 74 74 97 97 97 97 90 79 72 79 93 97 93 93 Wind dir S S SW SW S SW S SE SE SE SE SE S SW N S S NW NW Wind spd 14 11 8 8 6 6 4 3 3 3 2 2 3 4 3 2 2 2 2 Wind gust 25 Clouds B1 B2 B2 B2 B2 B2 B1 B1 B2 B2 B2 B1 SC SC B1 B2 B2 B2 B1 PoP 12hr 50 70 40 20 40 QPF 12hr 0.28 0.22 0.35 0.04 0.55 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L L C C S C C C S S S S C C C C S Tstms S C C S C C S C C C S S S S C S S Heat index 87 Max heat 86 87 Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 61 82 61 82 64 84 68 86 Temp 78 77 65 63 79 78 65 63 79 79 68 66 80 81 71 69 83 82 Dewpt 67 68 62 61 67 69 63 62 68 69 65 65 71 72 68 66 73 73 PWind dir NW W W SW S SE S S S Wind char LT LT LT LT LT LT GN LT GN Avg clouds SC SC SC SC FW FW FW SC FW FW SC SC SC FW FW SC SC FW PoP 12hr 20 10 10 10 10 30 20 20 10 Rain shwrs S C S S Tstms C S $$ IAZ049-090900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 1030 PM CDT Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 73 83 68 83 65 Temp 80 76 73 79 82 82 81 75 72 70 68 73 79 81 77 70 68 67 66 Dewpt 71 70 70 72 74 74 74 73 71 69 68 71 72 73 72 69 67 65 65 RH 74 82 90 79 77 77 79 94 97 97100 93 79 77 85 97 97 93 97 Wind dir S S S S SE E E NE SE SE SE S S S SE S SW SW W Wind spd 14 11 10 10 10 8 6 5 5 6 4 5 5 5 4 4 4 4 3 Clouds SC B1 B1 B1 B2 B2 B1 B2 B2 B2 B2 B2 B1 B1 B1 B2 B2 OV B2 PoP 12hr 30 50 80 50 70 QPF 12hr 0.16 0.43 1.45 0.61 1.53 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L L D L C C C C L L L L C Tstms C C C C L L L L C S C C C C S S S Heat index 88 87 86 Max heat 85 90 90 85 84 86 Flood A A A A A A A A A A A A A A A Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 63 82 63 84 66 85 68 87 Temp 76 77 67 64 79 79 67 64 80 80 69 67 81 81 72 70 83 83 Dewpt 69 69 66 63 69 69 66 63 69 70 66 65 72 73 69 67 74 74 PWind dir W W W SW S SE S S S Wind char LT LT LT LT LT LT GN LT GN Avg clouds B1 B1 B1 SC SC FW SC SC SC FW SC SC SC FW FW FW FW FW PoP 12hr 30 20 10 10 20 30 20 20 5 Rain shwrs C S S S S S C S S Tstms S S S S S C S S $$ IAZ086-090900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 1030 PM CDT Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 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 75 89 71 86 69 Temp 79 76 75 80 88 89 85 79 76 75 71 75 80 83 81 75 72 71 70 Dewpt 71 70 70 73 74 75 76 74 72 71 71 72 73 75 75 73 71 70 69 RH 77 82 84 79 63 64 75 85 87 87100 90 79 77 82 94 97 97 97 Wind dir S S S S S S SE SE SE S S S S S S SW S SW SW Wind spd 12 12 11 12 12 11 6 8 9 10 6 8 8 6 5 5 5 5 5 Wind gust 24 23 Clouds SC SC B1 B1 SC B1 B1 B2 B2 OV B2 B2 B1 SC B1 B2 OV OV B2 PoP 12hr 20 40 80 70 80 QPF 12hr 0 0.13 1.58 0.27 1.95 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C C L D D L L L L D D D D L Tstms S S C S C C C L L L C S C L L L C S S Heat index 96 99 93 90 87 Max heat 86 98 102 91 86 91 86 Flood A A A A A A A A A A A A A A A Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 65 83 66 85 68 87 70 88 Temp 77 77 70 67 79 79 70 67 81 81 71 69 83 83 75 71 85 85 Dewpt 71 72 69 67 70 71 70 67 71 71 70 68 72 74 71 69 74 75 PWind dir SW SW W SW SW SE S S S Wind char LT LT LT LT LT LT LT LT GN Avg clouds B2 B1 B1 B1 SC SC SC SC SC SC FW SC SC FW FW FW FW FW PoP 12hr 60 30 20 10 20 20 30 20 5 Rain shwrs L L C C S S S S S C S Tstms S C C S S S S S S S S $$