Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
790 FOUS53 KDMX 150627 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 127 AM CDT Sat Aug 15 2026 IAZ060-160900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 127 AM CDT Sat Aug 15 2026 Date 08/14/26 Sat 08/15/26 Sun 08/16/26 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 71 82 63 Temp 73 72 76 81 84 82 76 73 73 72 75 79 82 78 71 68 65 64 Dewpt 72 72 75 77 79 79 75 73 73 72 73 73 72 71 68 66 64 63 RH 97100 97 88 85 91 97100100100 94 82 72 79 90 93 97 97 Wind dir E E W SW W NW W NW W NW NW N N N N NW NW NW Wind spd 5 3 3 4 4 3 3 3 4 6 8 10 11 8 4 3 3 2 Clouds OV B2 B2 B2 B1 B2 B2 B1 B1 B2 B1 SC SC SC FW FW FW SC PoP 12hr 50 40 50 20 0 QPF 12hr 0.48 0 0.60 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C C S S Tstms C S C C S S Obvis PF PF Heat index 88 96 92 Max heat 90 99 91 85 87 Flood A A Date 08/17 Tue 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 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 66 84 67 77 60 76 61 78 Temp 79 80 70 67 81 80 71 67 75 73 64 61 73 72 64 61 75 75 Dewpt 66 69 65 66 72 74 70 67 69 68 64 60 65 66 63 61 68 70 PWind dir W S S W N N E SE SE Wind char LT LT LT LT GN LT LT LT LT Avg clouds SC FW FW SC B1 B1 B1 B2 B2 SC SC B1 SC SC SC SC SC SC PoP 12hr 0 20 30 80 20 10 10 30 20 Rain shwrs S C C D L S C S Tstms S S C C C S $$ IAZ039-160900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 127 AM CDT Sat Aug 15 2026 Date 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 81 69 79 61 Temp 70 69 72 78 81 79 74 72 72 70 74 77 79 76 69 66 63 61 Dewpt 70 69 72 75 76 76 74 72 72 70 71 71 70 68 65 63 61 60 RH 100100100 91 85 91100100100100 90 82 74 76 87 90 93 97 Wind dir E E SE N W W W W W NW NW NW NW NW NW NW NW NW Wind spd 6 5 4 4 4 3 2 3 5 6 10 12 13 10 6 5 4 2 Clouds B2 B2 B2 B2 B1 B1 B2 B1 B1 SC B2 B1 SC FW FW FW FW SC PoP 12hr 20 40 50 5 0 QPF 12hr 0.65 0.03 0.27 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S Tstms S C S Obvis PF Heat index 88 Max heat 88 83 Date 08/17 Tue 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 63 80 64 75 57 73 58 75 Temp 77 77 67 64 77 75 69 64 73 71 62 58 71 70 62 59 73 72 Dewpt 65 66 64 64 71 71 68 64 66 63 60 57 61 62 61 59 65 66 PWind dir W S SW S N N E SE SE Wind char LT LT LT GN GN LT LT LT LT Avg clouds FW FW FW B1 B2 B2 B2 B1 B2 SC SC SC SC SC FW SC B1 FW PoP 12hr 0 40 50 80 20 5 10 20 20 Rain shwrs C C C D L S S S Tstms S S C C S S $$ IAZ048-160900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 127 AM CDT Sat Aug 15 2026 Date 08/14/26 Sat 08/15/26 Sun 08/16/26 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 70 83 69 81 62 Temp 72 70 73 80 83 81 75 72 72 70 74 78 80 77 69 66 64 62 Dewpt 71 70 73 77 78 79 75 72 72 70 71 72 71 70 67 65 63 62 RH 97100100 91 85 94100100100100 90 82 74 79 93 97 97100 Wind dir E E N NW NW NW W NW NW NW N N N N N NW NW NW Wind spd 5 3 3 4 3 3 2 3 4 6 10 11 10 6 3 2 2 1 Clouds OV B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B1 SC FW FW FW FW FW PoP 12hr 40 40 50 10 0 QPF 12hr 0.18 0 0.11 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C S C Tstms C S C C S S Obvis PF PF Heat index 86 93 90 Max heat 88 94 88 85 Flood A A Date 08/17 Tue 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 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 82 65 77 58 75 59 77 Temp 78 78 68 66 79 78 70 65 74 72 62 59 73 71 63 60 75 74 Dewpt 66 69 66 66 73 74 70 65 68 67 62 59 64 66 63 60 68 69 PWind dir W S SW SW N N E SE SE Wind char LT LT LT LT GN LT LT LT LT Avg clouds FW FW SC B1 B1 B1 B2 B2 B2 SC SC SC SC SC SC SC SC SC PoP 12hr 0 30 50 80 20 10 10 30 20 Rain shwrs C C C D C S C S Tstms S S C C C S $$ IAZ004-160900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 127 AM CDT Sat Aug 15 2026 Date 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 80 64 77 56 Temp 70 67 72 77 80 76 72 70 66 64 70 74 76 74 64 61 58 57 Dewpt 69 67 72 75 76 76 72 69 66 63 65 65 65 66 61 59 57 57 RH 97100100 94 88100100 97100 97 84 74 69 76 90 93 96100 Wind dir SE E S SW W W W NW NW NW N N N N NW W W W Wind spd 4 4 4 4 4 4 4 8 11 11 13 12 11 6 4 3 3 2 Clouds OV OV B2 B1 B2 OV B1 SC FW SC SC FW CL CL FW FW SC SC PoP 12hr 20 60 60 5 0 QPF 12hr 0.03 0.06 0.09 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C L S Tstms S S C S S Obvis PF F PF Heat index 86 Max heat 86 Date 08/17 Tue 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 62 78 58 72 53 73 56 76 Temp 76 76 66 63 75 73 64 59 70 69 57 55 71 70 60 57 73 73 Dewpt 65 69 65 63 71 71 64 59 63 63 56 55 63 65 60 57 67 68 PWind dir SW SW SW N N NW SW S S Wind char LT GN GN GN GN LT LT LT LT Avg clouds SC FW SC B1 B1 B2 B2 B1 B1 SC SC SC SC SC SC SC B1 SC PoP 12hr 5 60 70 70 10 5 10 30 10 Rain shwrs C L L L L S S C Tstms C C S C C S S $$ IAZ035-160900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 127 AM CDT Sat Aug 15 2026 Date 08/14/26 Sat 08/15/26 Sun 08/16/26 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 67 79 59 Temp 71 68 71 79 82 79 73 71 70 67 71 76 78 76 67 63 61 59 Dewpt 70 68 71 77 78 78 73 71 70 67 69 69 69 69 65 62 61 59 RH 97100100 94 88 97100100100100 93 79 74 79 93 97100100 Wind dir SE E S W NW W W NW NW N N N N N N NW NW NW Wind spd 5 2 2 2 2 2 2 3 4 6 10 10 9 4 2 1 1 0 Clouds OV OV B2 B2 B2 OV B1 SC B1 B1 SC B1 FW CL FW FW SC SC PoP 12hr 10 50 50 5 0 QPF 12hr 0.01 0.06 0.04 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms C C Obvis PF PF Heat index 90 Max heat 92 Date 08/17 Tue 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 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 81 62 76 55 75 57 77 Temp 78 78 67 64 78 76 67 63 73 71 59 57 72 71 61 58 75 74 Dewpt 67 70 65 64 73 73 67 63 67 66 59 57 64 66 61 58 68 70 PWind dir SW S SW N N N E SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC FW SC B2 B2 B2 B2 B2 B2 SC SC SC B1 SC SC SC B1 SC PoP 12hr 5 50 70 70 10 5 10 30 20 Rain shwrs C C L L L C C S Tstms S C S C C S S $$ IAZ094-160900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 127 AM CDT Sat Aug 15 2026 Date 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 87 70 82 64 Temp 75 74 80 85 87 85 77 74 72 71 76 80 82 78 72 68 66 64 Dewpt 73 72 75 76 77 78 77 74 72 71 73 73 72 70 70 68 65 64 RH 94 93 85 75 72 80100100100100 90 79 72 76 93100 97100 Wind dir SE S SW W W NW N W NW NW N N N N N N N N Wind spd 5 4 5 5 6 3 3 3 4 5 8 9 10 9 5 3 3 3 Clouds OV B2 B2 B2 B1 B2 B2 B2 OV B2 B2 B2 B1 SC FW FW SC FW PoP 12hr 70 30 60 20 5 QPF 12hr 0.01 0 0.10 0.07 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C C C L C S Tstms S S C C C C S Heat index 95 99 96 85 87 Max heat 97 100 91 86 89 Flood A A Date 08/17 Tue 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 82 65 85 68 79 61 77 61 79 Temp 79 80 69 66 82 82 72 68 77 75 65 62 74 74 65 62 76 76 Dewpt 66 67 65 64 71 72 71 68 69 68 65 61 64 65 63 62 67 68 PWind dir N S S N N N NE E SE Wind char LT LT LT GN GN LT LT LT LT Avg clouds FW FW FW SC SC SC SC B2 B2 B1 SC SC B1 SC SC SC SC SC PoP 12hr 0 5 20 70 10 20 10 20 20 Rain shwrs S L L S S S S Tstms S C C S S $$ IAZ017-160900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 127 AM CDT Sat Aug 15 2026 Date 08/14/26 Sat 08/15/26 Sun 08/16/26 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 66 80 66 77 57 Temp 69 66 71 77 79 78 72 70 69 67 71 75 76 74 66 63 60 58 Dewpt 68 66 71 75 76 76 72 70 69 67 68 67 66 66 63 60 59 58 RH 97100100 94 91 94100100100100 90 76 71 76 90 90 96100 Wind dir SE E SE S W W W NW NW NW N N NW NW NW NW NW NW Wind spd 6 4 4 3 3 3 2 3 6 10 12 12 12 6 4 3 2 1 Clouds OV B2 B2 B2 B2 B2 B2 SC SC B2 SC SC FW CL CL FW SC SC PoP 12hr 20 40 50 5 0 QPF 12hr 0.21 0.01 0.33 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S Tstms C C Obvis PF F PF Date 08/17 Tue 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 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 62 79 60 73 53 73 56 75 Temp 77 76 66 64 78 74 65 61 72 70 58 55 71 69 60 57 73 72 Dewpt 64 67 64 64 71 70 65 61 63 62 57 55 61 63 60 57 66 67 PWind dir W SW SW N N N SE S S Wind char LT LT LT LT GN LT LT LT LT Avg clouds FW FW SC B2 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 5 60 60 70 10 5 10 30 20 Rain shwrs C L C L L C C S Tstms S C S C C S $$ IAZ049-160900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 127 AM CDT Sat Aug 15 2026 Date 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 83 68 81 60 Temp 71 68 73 78 83 80 73 71 71 69 74 78 79 76 68 65 62 61 Dewpt 70 68 72 75 77 77 73 71 71 69 72 71 70 69 65 63 61 60 RH 97100 97 91 82 91100100100100 93 79 74 79 90 93 97 97 Wind dir E E E W W NW W NW NW NW NW NW N N NW NW NW NW Wind spd 5 3 3 3 3 3 2 3 4 5 9 10 11 8 4 4 3 2 Clouds OV OV OV B2 B2 B2 B2 B2 B1 SC B2 SC SC SC FW FW FW FW PoP 12hr 30 40 50 10 0 QPF 12hr 0.51 0 0.13 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C C Tstms C S S C S S Obvis PF PF Heat index 91 Max heat 93 83 Flood A A Date 08/17 Tue 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 63 82 63 76 56 75 57 77 Temp 78 77 66 64 78 76 68 64 74 71 61 58 72 70 61 58 73 72 Dewpt 65 67 64 64 71 72 68 64 66 65 60 57 62 63 60 58 66 67 PWind dir W S SW SW N N E SE SE Wind char LT LT LT LT GN LT LT LT LT Avg clouds SC FW FW B1 B2 B1 B2 B2 B2 B1 SC SC SC B1 SC SC SC SC PoP 12hr 0 30 50 80 20 5 10 30 20 Rain shwrs C C C D L S C S Tstms S S C C C S $$ IAZ086-160900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 127 AM CDT Sat Aug 15 2026 Date 08/14/26 Sat 08/15/26 Sun 08/16/26 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 87 71 84 64 Temp 74 73 78 84 87 84 76 74 74 72 77 81 83 80 72 68 66 64 Dewpt 73 73 77 78 79 80 76 74 74 72 75 75 75 73 70 68 65 64 RH 97100 97 82 77 88100100100100 94 82 77 79 93100 97100 Wind dir SE S SW W W NW NW W W NW NW NW NW NW N NW NW N Wind spd 5 4 4 4 4 3 3 3 4 5 8 9 11 9 5 4 4 3 Clouds OV B2 B2 B1 B1 B2 B1 B1 B2 B1 B2 SC B1 SC FW FW FW FW PoP 12hr 80 50 50 20 5 QPF 12hr 0.44 0.01 0.16 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S C C C C S Tstms C C S C C C S S Obvis PF PF Heat index 95102 98 87 90 Max heat 100 105 93 87 93 Flood A A Date 08/17 Tue 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 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 83 65 85 68 80 61 77 60 79 Temp 80 80 68 66 82 82 72 69 78 76 65 62 75 74 64 61 76 76 Dewpt 67 69 66 66 72 74 71 69 71 70 65 62 65 66 63 61 67 69 PWind dir N S SW SW N N NE E SE Wind char LT LT LT GN GN LT LT LT LT Avg clouds FW FW FW SC SC SC B1 B2 B2 B1 SC SC SC SC SC SC SC SC PoP 12hr 0 5 10 70 20 20 10 20 10 Rain shwrs S L L S S S Tstms S C C S $$