Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
396 FOUS53 KDMX 170627 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 127 AM CDT Thu Sep 17 2026 IAZ060-180900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 127 AM CDT Thu Sep 17 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 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 65 77 66 83 71 Temp 67 67 69 73 77 73 70 69 68 67 70 76 83 80 76 74 73 71 Dewpt 66 67 69 72 73 71 70 69 68 67 69 74 77 75 73 72 70 69 RH 97100100 97 87 93100100100100 97 94 82 85 90 93 90 93 Wind dir E E N N NE NE NE E E E SE SE S SE S S S SW Wind spd 2 2 3 3 4 4 5 6 6 9 11 12 12 11 11 10 9 8 Clouds OV OV OV OV B2 B2 B2 B2 OV OV B2 B1 SC SC B1 B1 B2 B2 PoP 12hr 60 30 50 50 70 QPF 12hr 0.79 0.08 0.06 0.03 0.20 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C S S L L L Tstms C S S C C S S C C S Obvis PF+PF+ Heat index 92 Max heat 95 Dense Fog Y Y Flood A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 67 59 64 55 65 55 70 Temp 79 75 67 63 64 65 62 60 61 62 57 55 61 63 57 55 64 65 Dewpt 73 72 67 63 63 63 62 59 60 58 57 55 58 58 57 55 60 61 PWind dir W N NE NE NE NE NE E SE Wind char GN LT GN GN GN LT LT LT LT Avg clouds B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 SC SC B1 PoP 12hr 60 60 60 60 50 20 20 5 10 Rain shwrs L S L C C L L L C C S S S Tstms S S C C S S C S $$ IAZ039-180900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 127 AM CDT Thu Sep 17 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 74 61 74 66 Temp 64 64 68 69 72 72 66 64 63 63 64 67 72 72 69 69 68 68 Dewpt 64 64 68 69 69 67 66 64 63 62 64 66 69 68 69 69 68 68 RH 100100100100 90 84100100100 97100 97 90 87100100100100 Wind dir SE E NE NE NE NE NE E E E E SE SE E SE SE S S Wind spd 2 2 3 4 5 5 6 5 6 9 11 14 14 14 14 13 11 9 Clouds OV OV OV B2 B2 B2 B2 B2 B2 OV B2 OV B2 B2 B2 B2 B2 B2 PoP 12hr 60 40 40 80 90 QPF 12hr 0.16 0.01 0.03 0.49 0.80 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C S S L L C C L L D D L Tstms C S S C C C C C C S Obvis PF F PF Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 59 66 54 63 51 65 51 70 Temp 78 73 64 59 61 64 57 55 60 61 54 51 61 62 54 51 65 66 Dewpt 71 68 64 59 59 56 57 55 56 53 54 51 54 54 54 51 57 58 PWind dir W N NE E E E E E SE Wind char GN GN GN GN GN GN GN LT LT Avg clouds B2 B1 B2 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B1 B1 SC SC PoP 12hr 60 40 40 50 50 30 20 10 10 Rain shwrs L C C S C C C C C C S C S Tstms S S C S S $$ IAZ048-180900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 127 AM CDT Thu Sep 17 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 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 63 75 64 80 68 Temp 65 66 69 71 74 72 69 67 66 65 68 72 79 78 73 72 70 70 Dewpt 65 66 69 71 72 70 69 67 66 65 68 72 76 74 73 72 70 69 RH 100100100100 93 93100100100100100100 91 88100100100 97 Wind dir SE NE N N NE NE NE E E E SE SE SE SE S S S SW Wind spd 1 1 2 3 4 3 4 5 6 9 11 12 12 11 11 8 8 6 Wind gust 23 Clouds OV OV OV OV B2 OV B2 B2 B2 OV OV B2 B1 B2 B1 B2 B2 B2 PoP 12hr 50 30 60 70 80 QPF 12hr 0.28 0.04 0.10 0.14 0.36 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C L S S S C C D D C Tstms C S S C C S S S C C C C S Obvis PF PF Flood A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 61 66 56 62 53 65 53 69 Temp 77 73 65 62 63 64 61 58 60 61 57 54 61 62 57 54 64 65 Dewpt 73 70 65 62 62 61 60 58 59 57 57 54 57 57 56 54 60 61 PWind dir W N NE E NE NE E E SE Wind char GN LT GN GN GN LT LT LT LT Avg clouds B2 B1 B2 B2 OV B2 B2 B2 OV B2 B2 B2 B2 B1 B1 B1 SC B1 PoP 12hr 50 40 50 60 60 30 20 5 10 Rain shwrs C C C C C C C L L C C S S Tstms S S C S S C $$ IAZ004-180900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 127 AM CDT Thu Sep 17 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 60 74 59 75 61 Temp 63 62 64 68 71 71 63 61 61 61 64 67 73 73 68 66 64 63 Dewpt 62 62 64 65 65 64 63 61 61 61 64 67 70 70 68 66 64 63 RH 97100100 90 81 79100100100100100100 90 90100100100100 Wind dir NW N N NE NE E E E E E SE SE SE E SE SE N N Wind spd 3 2 5 6 6 5 6 8 10 12 16 17 14 12 11 8 6 6 Wind gust 27 25 Clouds OV OV OV OV B2 B2 B2 B2 OV OV B2 OV B2 B2 B2 B2 B2 B2 PoP 12hr 30 5 90 90 80 QPF 12hr 0.01 0 0.87 0.69 0.61 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L D L L C D D C C S Tstms S C C S C C C S Obvis PF F PF Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 70 54 63 50 59 49 64 49 70 Temp 67 67 59 55 59 62 56 53 57 58 53 50 59 62 53 50 64 66 Dewpt 65 63 59 55 58 57 56 53 55 54 53 50 55 56 53 50 57 59 PWind dir N N NE E E E E SE S Wind char GN GN GN GN GN LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 OV B2 B1 B1 B2 B1 B1 SC B1 B1 PoP 12hr 40 10 30 60 60 20 10 5 20 Rain shwrs S C S C C L L C S S S S $$ IAZ035-180900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 127 AM CDT Thu Sep 17 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 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 61 75 61 79 66 Temp 65 64 67 69 73 71 66 65 63 63 67 70 77 76 72 70 68 68 Dewpt 64 64 67 69 70 69 66 65 63 63 67 70 75 74 72 70 68 68 RH 97100100100 90 93100100100100100100 94 94100100100100 Wind dir S N N NE NE NE E E E E SE SE SE SE S S SW W Wind spd 2 1 2 4 4 3 5 6 8 10 13 16 12 11 10 8 6 5 Clouds OV OV OV OV B2 B2 B2 OV B2 OV B2 B2 B1 B1 B1 B2 B2 B2 PoP 12hr 30 20 80 80 80 QPF 12hr 0.05 0 0.31 0.27 0.55 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C L D C S C D D L L C Tstms S C C S S C C C C S Obvis PF F PF Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 76 57 65 53 61 50 65 51 70 Temp 73 70 63 58 61 63 59 55 58 59 55 51 59 62 55 52 64 66 Dewpt 71 67 63 58 61 61 59 55 57 57 55 51 56 57 55 52 59 61 PWind dir NW N NE E NE E E SE SE Wind char LT LT GN LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B1 SC B1 B1 PoP 12hr 40 30 50 60 60 20 10 5 10 Rain shwrs C C C C C C L L C S S Tstms S $$ IAZ094-180900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 127 AM CDT Thu Sep 17 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 66 80 66 83 70 Temp 68 68 72 78 80 75 71 70 70 68 72 80 83 79 75 74 72 71 Dewpt 68 68 72 75 75 74 71 70 70 68 72 76 77 76 73 71 69 67 RH 100100100 91 85 97100100100100100 88 82 91 94 90 90 87 Wind dir E N N N NE NE NE E E E SE S S S S S SW SW Wind spd 3 3 3 3 3 4 5 5 6 6 9 11 11 8 8 9 9 9 Clouds OV OV OV B1 B1 B1 B1 B2 B2 B2 B1 FW FW FW SC SC B1 B2 PoP 12hr 20 20 20 10 40 QPF 12hr 0.30 0.05 0.02 0.01 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C C Tstms S S S C C S Obvis PF+ F+ PF Heat index 85 86 93 Max heat 87 88 95 Dense Fog Y Y Flood A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 64 69 59 65 55 65 55 69 Temp 80 75 68 64 68 66 63 61 64 62 58 56 62 61 57 55 67 64 Dewpt 73 74 68 64 68 65 63 61 64 61 58 56 62 60 57 55 63 63 PWind dir SW N NE NE NE NE NE E SE Wind char GN LT LT LT GN LT LT LT LT Avg clouds B1 SC B1 B2 OV B2 OV B2 OV B2 B2 B2 B2 B1 SC B1 B1 SC PoP 12hr 30 60 70 70 50 20 10 5 10 Rain shwrs C S L L L L L L C S S S Tstms S S C C C C C S S $$ IAZ017-180900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 127 AM CDT Thu Sep 17 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 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 59 73 57 72 63 Temp 63 62 66 68 70 71 63 61 59 60 63 65 69 71 67 67 66 65 Dewpt 63 62 66 67 67 65 63 61 59 60 63 65 68 68 67 67 66 65 RH 100100100 97 90 81100100100100100100 97 90100100100100 Wind dir SE E NE NE NE NE E E E E E SE SE E SE SE SE SW Wind spd 2 1 3 4 5 4 5 5 6 9 13 16 14 13 14 10 8 6 Wind gust 27 25 Clouds OV OV OV OV B2 B2 B2 B2 B2 OV OV B2 OV B2 B2 OV B2 B2 PoP 12hr 50 20 60 90 90 QPF 12hr 0.06 0 0.19 1.00 1.43 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S D L C L D D D D C Tstms C C C C C C C S Obvis PF F PF Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 74 54 64 50 60 48 64 48 70 Temp 73 68 60 55 61 62 55 53 58 58 52 49 59 61 52 50 64 66 Dewpt 69 64 60 55 58 56 54 53 55 53 52 49 53 53 52 50 56 57 PWind dir NW N NE E E E E SE SE Wind char LT GN GN GN GN LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 OV B2 B1 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 50 30 20 40 60 30 20 5 10 Rain shwrs C C C S S S C L C S C S $$ IAZ049-180900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 127 AM CDT Thu Sep 17 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 74 62 77 67 Temp 65 64 68 70 74 72 67 65 64 63 66 69 76 75 71 70 69 69 Dewpt 64 64 68 70 70 69 67 65 64 63 66 69 72 72 71 70 69 68 RH 97100100100 87 90100100100100100100 87 90100100100 97 Wind dir E E NE N NE NE NE E E E E SE SE SE SE S S S Wind spd 3 2 2 3 4 4 5 5 6 8 10 12 12 11 11 9 9 6 Clouds OV OV OV OV B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B2 B2 B2 PoP 12hr 70 30 60 70 80 QPF 12hr 0.56 0.03 0.06 0.31 0.43 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C S C L C S S C C D D L Tstms C S S C C S S C C C C S Obvis PF PF PF Flood A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 59 66 54 62 51 64 51 69 Temp 78 74 64 60 62 64 58 56 60 60 55 52 60 62 54 52 63 65 Dewpt 72 69 64 60 61 59 58 56 57 56 55 52 55 55 54 52 58 59 PWind dir W N NE NE NE NE E E SE Wind char LT LT GN GN GN LT LT LT LT Avg clouds B2 B1 B2 B2 B2 B2 B2 B2 OV B2 B1 B1 B2 B1 B1 SC SC B1 PoP 12hr 60 50 50 60 50 30 20 10 10 Rain shwrs L C C C C C C L C C S C S Tstms S S C S S S $$ IAZ086-180900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 127 AM CDT Thu Sep 17 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 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 79 66 82 70 Temp 69 68 73 76 78 76 72 70 68 67 71 75 81 79 74 73 72 72 Dewpt 69 68 73 76 76 75 72 70 68 67 71 75 78 78 74 73 72 71 RH 100100100100 94 97100100100100100100 91 97100100100 97 Wind dir E E E NE N NE NE NE E E E SE SE SE S S S S Wind spd 3 3 3 3 4 4 5 5 6 6 9 9 9 8 8 8 8 8 Clouds OV OV OV OV B2 B2 B1 B2 B2 OV B2 B1 SC SC SC B1 B1 B2 PoP 12hr 50 30 30 50 40 QPF 12hr 0.68 0.12 0.07 0.15 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C C C C Tstms C S S C C C C S Obvis PF+PF+ Heat index 89 Max heat 87 94 Dense Fog Y Y Flood A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 84 64 70 59 65 55 66 54 71 Temp 81 78 70 65 67 67 63 60 63 63 59 55 62 63 58 55 66 66 Dewpt 75 76 70 65 67 66 63 60 63 62 58 55 60 60 57 55 62 64 PWind dir SW N NE NE NE NE NE NE E Wind char GN LT LT GN GN LT LT LT LT Avg clouds B2 B1 B1 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 SC SC SC SC PoP 12hr 40 60 60 60 60 20 20 5 10 Rain shwrs C L L L L L L L C S S S Tstms S C C S C C S $$