Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
718 FOUS53 KDMX 141113 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 612 AM CDT Mon Sep 14 2026 IAZ060-142100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 612 AM CDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 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 80 67 72 60 73 Temp 59 59 69 77 78 78 74 70 67 67 68 71 68 64 63 61 60 63 67 72 71 Dewpt 54 55 62 69 70 71 72 70 67 66 63 63 62 62 60 60 60 62 66 70 70 RH 83 87 78 76 76 79 93100100 97 84 76 81 93 90 97100 97 97 93 97 Wind dir SE SE SE S SE S SW SW NW N N N N NE NE NE E E E E E Wind spd 12 14 17 19 17 16 12 8 4 5 6 5 3 4 4 5 8 8 8 6 5 Wind gust 25 29 31 32 27 Clouds B2 B2 B1 SC B1 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 OV OV OV OV B2 B2 PoP 12hr 80 100 90 50 90 QPF 12hr 0.28 1.84 0.34 0.40 0.86 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D S S D D D D L C C C D D L L L Tstms C C S S C C C S S S S S S S C Flood A A A A A A A A Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 79 65 81 66 78 61 73 Temp 68 66 75 75 68 66 77 76 70 67 75 73 64 62 70 69 Dewpt 68 66 71 71 68 66 72 72 68 65 69 68 64 61 65 65 PWind dir E NE E SE S NW NE E Wind char LT LT LT GN GN GN LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B1 SC B1 B1 B1 B1 B1 B2 B1 PoP 12hr 90 60 50 60 70 50 50 40 Rain shwrs L D L S C L C C L C C C C C C Tstms C C S C C S S S S S C S S $$ IAZ039-142100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 612 AM CDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 70 64 73 54 68 Temp 54 59 64 67 69 71 69 68 65 68 70 72 68 61 58 57 56 61 65 67 66 Dewpt 51 52 55 59 59 64 69 68 65 64 58 56 57 57 55 54 54 58 60 62 63 RH 90 78 73 75 70 79100100100 87 66 57 68 87 90 90 93 90 84 84 90 Wind dir SE SE SE SE SE S S SW W W NW NW N N NE NE E E E E E Wind spd 9 14 19 21 19 19 16 10 5 8 9 8 4 3 4 5 6 9 9 9 6 Wind gust 31 36 29 Clouds B2 B2 OV B1 B2 B2 B2 OV B2 B2 B2 B1 B1 SC B1 B1 OV B2 OV OV OV PoP 12hr 80 100 50 10 80 QPF 12hr 0.26 1.25 0.03 0.02 0.59 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D C C D D D C S S S L L D D D Tstms S S C L C S S C Flood A A A A A A A A Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 60 75 60 77 62 75 57 73 Temp 64 61 73 73 64 62 74 73 66 63 73 70 61 58 70 69 Dewpt 64 61 67 66 64 62 68 67 66 63 66 63 61 57 61 61 PWind dir E NE E SE S NW NE E Wind char LT LT LT GN GN GN GN GN Avg clouds B2 B2 B2 B2 B1 B2 B2 B2 B1 B1 B2 B2 B2 B1 B2 B1 PoP 12hr 80 40 50 70 80 50 40 40 Rain shwrs D D C S C L L L D C C C C C C Tstms C C C C S S S S S S $$ IAZ048-142100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 612 AM CDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 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 77 65 73 58 70 Temp 57 59 66 73 75 75 71 69 65 67 69 72 68 62 60 59 58 61 66 69 68 Dewpt 54 54 61 67 69 72 71 69 65 64 60 59 59 59 58 58 58 61 65 68 67 RH 90 83 84 81 82 90100100100 90 73 64 73 90 93 96100100 97 97 97 Wind dir SE SE SE SE SE S S SW NW NW NW N N NE NE NE E E E E E Wind spd 12 16 17 18 17 14 10 5 3 5 6 5 3 3 3 5 6 8 8 6 4 Wind gust 26 32 33 31 Clouds B2 OV B2 B1 B1 B2 OV OV OV OV B1 B1 B1 SC B1 B2 OV OV OV OV OV PoP 12hr 90 90 70 30 90 QPF 12hr 0.27 2.05 0.14 0.20 0.74 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D C C C D D D L C C C D D L L D Tstms C C S C C L C C S S S S S S C Flood A A A A A A A A Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 77 63 79 64 77 59 73 Temp 66 63 74 73 67 65 76 74 68 64 75 71 63 59 70 69 Dewpt 66 63 70 70 67 65 71 70 68 64 69 66 63 59 64 64 PWind dir E NE E SE S NW NE E Wind char LT LT LT GN GN GN LT LT Avg clouds OV B2 OV B2 B2 B2 B2 B2 B1 B1 B2 B2 B1 B2 B2 B1 PoP 12hr 80 50 60 70 80 50 50 30 Rain shwrs D D C S L L L L D C C C C C C Tstms C C C C C S S S S C C S $$ IAZ004-142100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 612 AM CDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 71 56 70 49 64 Temp 56 57 61 66 69 69 64 58 56 61 67 70 65 55 53 51 51 59 62 63 62 Dewpt 51 53 59 66 69 69 63 56 50 52 54 55 56 52 51 50 50 57 58 61 61 RH 83 86 93100100100 97 93 80 72 63 59 73 90 93 96 96 93 87 93 97 Wind dir SE SE SE S S S W W W NW NW NW N NE E E E E SE E E Wind spd 16 21 25 20 17 13 8 5 9 12 9 6 2 2 3 4 5 9 10 9 6 Wind gust 35 41 36 29 24 Clouds B2 B2 B2 B2 B2 B1 B2 B2 B1 FW CL FW FW FW FW SC B1 B1 B2 OV B2 PoP 12hr 100 70 0 0 70 QPF 12hr 0.66 0.27 0 0 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D D C L C C C L L C Tstms C C C C C C Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 71 57 74 58 70 53 69 Temp 60 56 69 69 61 60 71 71 63 59 68 66 58 54 67 66 Dewpt 60 56 64 65 61 60 67 67 63 59 64 63 58 54 61 61 PWind dir E NE E SE SW N NE NE Wind char LT LT LT GN GN GN LT GN Avg clouds B2 B2 B2 B2 B1 B2 B2 B2 B1 B2 B2 B2 B1 B1 B2 B1 PoP 12hr 30 20 70 80 70 30 30 30 Rain shwrs C C S S C L D L L L C S S C C S Tstms C C C C S S S S $$ IAZ035-142100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 612 AM CDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 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 75 62 72 53 67 Temp 57 59 64 71 73 71 69 64 62 65 69 72 67 58 56 55 55 60 64 66 65 Dewpt 52 54 61 68 71 71 69 64 61 58 56 57 57 56 55 54 54 60 62 65 65 RH 83 83 90 90 93100100100 97 78 63 59 70 93 96 96 96100 93 97100 Wind dir SE SE SE S SE S SW NW NW NW N N N NE NE E E E E E E Wind spd 12 17 21 18 17 13 6 4 3 8 6 4 2 2 2 4 5 8 8 5 4 Wind gust 28 33 32 29 Clouds OV B2 B1 B2 B1 OV B2 OV OV B1 SC SC B1 SC SC B1 OV OV OV OV B2 PoP 12hr 100 100 20 10 80 QPF 12hr 0.46 1.25 0 0 0.60 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D C L L D L L S D D D D L Tstms C C C C L C C S S S S S Flood A A A A A A A A Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 75 60 77 61 74 56 72 Temp 63 60 72 71 64 63 73 73 66 62 71 69 60 57 69 67 Dewpt 63 60 68 69 64 63 70 70 66 62 67 66 60 57 63 64 PWind dir E NE E SE SW N NE E Wind char LT LT LT GN GN GN LT LT Avg clouds B2 OV OV B2 B2 B2 OV B2 B1 B1 B2 B2 B1 B1 B2 B1 PoP 12hr 60 30 60 70 80 50 40 30 Rain shwrs L L C S S L L L D L C C S C C C Tstms S S C C C S S S S S S S $$ IAZ094-142100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 612 AM CDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 68 72 61 79 Temp 58 60 72 80 81 79 76 71 68 69 69 69 65 64 64 63 63 66 73 79 76 Dewpt 53 56 64 72 72 71 71 71 68 69 68 67 65 64 64 63 63 66 72 75 75 RH 83 87 76 77 74 77 85100100100 97 93100100100100100100 97 88 97 Wind dir SE SE SE S S S SW S N N N N N NE NE NE E E SE SE E Wind spd 11 14 17 19 17 14 11 6 4 8 8 8 6 5 6 8 8 8 6 6 4 Wind gust 21 26 28 31 29 26 21 Clouds B2 B2 FW SC FW B1 B2 OV B2 OV B2 OV OV B2 OV OV OV OV B2 B2 B1 PoP 12hr 80 70 90 80 90 QPF 12hr 0.40 0.78 0.45 1.07 0.81 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S C L L L C D C C D D D D C C L Tstms C S S C C S S S S S S C C C S S C Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 80 66 81 66 77 61 72 Temp 71 67 77 76 70 67 78 77 70 66 74 72 65 62 70 68 Dewpt 71 67 73 74 70 67 73 73 68 66 70 70 65 61 67 67 PWind dir E E E S S W NE E Wind char LT LT LT GN GN GN LT LT Avg clouds B1 B2 B2 B1 B1 B1 B2 SC FW SC B1 B1 B1 B1 B2 B1 PoP 12hr 80 60 20 30 60 50 40 20 Rain shwrs L D L S S C C C L C C C C S S Tstms C C S S S C C S S S S C S S $$ IAZ017-142100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 612 AM CDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 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 68 59 70 50 64 Temp 52 58 60 65 67 68 68 63 59 63 67 70 65 56 53 52 52 59 62 64 62 Dewpt 51 52 57 62 63 68 68 63 58 55 54 55 55 53 52 50 50 57 59 61 61 RH 96 80 90 90 87100100100 96 75 63 59 70 90 96 93 93 93 90 90 97 Wind dir SE SE SE SE S S SW W W NW NW NW N N NE E E E E E E Wind spd 10 18 23 21 17 17 10 5 5 11 10 6 2 1 2 3 5 8 9 8 5 Wind gust 31 39 37 33 Clouds B2 B2 OV B2 B2 OV B2 OV OV B2 SC SC SC SC SC SC B2 B2 B2 B2 OV PoP 12hr 90 100 5 0 70 QPF 12hr 0.29 0.79 0 0 0.25 Snow 12hr 00-00 00-00 00-00 Rain shwrs L D D C L C C L L L L L Tstms C C C C C S S Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 72 57 74 59 72 54 70 Temp 61 57 70 69 61 60 71 70 64 60 69 67 59 55 67 66 Dewpt 61 57 65 65 61 60 66 66 64 60 64 62 58 55 60 60 PWind dir E NE E SE S N NE E Wind char LT LT LT GN GN GN LT LT Avg clouds B2 OV B2 B2 B1 B2 OV B2 B1 B2 B2 B2 B1 B2 B1 B1 PoP 12hr 60 20 60 80 80 40 30 40 Rain shwrs L L S S L D L D D C C S C C C Tstms S S C C C S S S S $$ IAZ049-142100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 612 AM CDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 74 64 74 55 70 Temp 56 60 65 71 72 72 70 68 65 68 70 73 68 61 59 57 57 61 64 69 68 Dewpt 52 53 57 62 64 68 70 68 65 65 60 58 59 58 56 56 56 60 62 65 66 RH 86 78 75 73 76 87100100100 90 71 59 73 90 90 96 96 97 93 87 93 Wind dir SE SE SE SE SE S S SW W W NW N N N NE NE E E E E E Wind spd 10 13 17 20 18 14 10 8 4 4 5 4 3 3 4 5 6 8 8 5 5 Wind gust 28 33 29 Clouds B2 B2 B2 SC B1 B2 B2 B2 OV OV B2 B1 B1 B1 SC B2 OV OV OV OV B2 PoP 12hr 80 100 70 30 90 QPF 12hr 0.20 1.73 0.10 0.15 0.79 Snow 12hr 00-00 00-00 00-00 Rain shwrs D L S S D D D L C C C D D D D D Tstms S S S S L C C S S S S S C Flood A A A A A A A A Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 77 61 79 63 77 58 74 Temp 65 62 74 74 65 63 75 74 67 63 74 71 62 58 70 69 Dewpt 65 62 68 68 65 63 69 68 66 63 67 65 62 58 62 63 PWind dir E NE E SE S NW NE E Wind char LT LT LT GN GN GN LT LT Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B2 B1 B1 B2 B1 PoP 12hr 80 50 50 70 70 60 50 40 Rain shwrs D D C S C L L L L L C C C C C Tstms C C S C C S S S S S C S $$ IAZ086-142100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 612 AM CDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 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 80 70 76 62 77 Temp 57 61 69 77 78 76 76 72 70 73 72 71 69 66 64 63 63 66 71 77 75 Dewpt 54 54 60 66 67 69 71 72 70 72 69 68 67 66 64 63 63 66 70 74 75 RH 90 78 73 69 69 79 85100100 97 90 90 93100100100100100 97 90100 Wind dir E SE SE SE SE S S S S NW N NW N N NE NE NE E E E E Wind spd 10 12 16 18 16 14 12 8 4 5 5 4 3 4 4 5 8 6 5 5 4 Wind gust 23 27 29 26 26 24 Clouds B2 OV B2 FW FW B1 B2 B1 B2 B2 OV B2 B2 OV B2 B2 OV OV B2 B2 B1 PoP 12hr 70 90 90 60 90 QPF 12hr 0.04 0.96 0.33 0.58 0.99 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L S C D D C C L L L D D C C L Tstms S S C C S S C S S S S S S C Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 80 66 82 67 79 63 74 Temp 70 68 77 78 70 68 78 78 70 67 76 75 66 63 71 71 Dewpt 70 68 74 75 70 67 73 74 69 67 71 71 66 63 67 67 PWind dir E NE E SE S W NE E Wind char LT LT LT GN GN GN LT LT Avg clouds B1 B2 B2 B1 B1 B1 B2 B1 SC SC B1 B1 B1 B1 B2 B1 PoP 12hr 80 60 40 40 50 60 40 40 Rain shwrs L D L S C C C C C L C S C C S Tstms C S S S S C S S S S $$