Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
340 FOUS53 KDMX 201130 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 629 AM CDT Wed Aug 20 2025 IAZ060-202100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 629 AM CDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 87 66 83 63 86 Temp 70 77 84 86 83 74 70 68 66 72 79 82 80 72 67 65 64 73 81 84 81 Dewpt 69 70 69 67 68 68 67 66 66 67 66 65 65 65 64 63 62 65 66 67 68 RH 97 79 61 53 61 82 90 93100 84 64 56 60 79 90 93 93 76 60 57 65 Wind dir NW N N N NE NE E E E E E E E E SE S S S S SW NE Wind spd 3 4 5 8 6 5 4 3 3 5 5 5 5 4 4 3 2 4 4 4 5 Clouds SC FW FW FW FW FW FW SC B1 SC FW FW FW FW FW SC SC SC SC SC B1 PoP 12hr 10 10 5 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C Tstms C Obvis PF Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 63 79 55 73 50 71 50 74 Temp 70 64 77 74 61 55 70 69 56 50 69 68 55 51 70 70 Dewpt 66 62 58 55 55 53 51 49 50 48 47 47 49 48 48 50 PWind dir N NW NW NW NW NW N N Wind char LT GN LT GN LT LT LT LT Avg clouds B1 SC FW CL FW FW FW FW FW FW FW FW SC SC SC SC PoP 12hr 40 5 0 0 0 0 5 5 Rain shwrs C C Tstms C C $$ IAZ039-202100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 629 AM CDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 62 79 61 80 Temp 68 73 80 82 78 70 67 64 63 71 76 77 75 67 64 62 62 72 78 78 76 Dewpt 67 70 70 68 68 67 65 63 63 65 65 65 65 65 63 61 61 66 67 67 67 RH 97 90 72 63 71 90 93 97100 81 69 67 71 93 97 97 97 81 69 69 74 Wind dir NW N NE NE NE NE E E E E E E E SE SE S S SW SW W W Wind spd 4 4 6 9 6 5 4 3 2 4 5 4 3 2 2 2 2 5 6 5 5 Clouds SC B1 FW FW FW FW FW SC SC SC SC FW FW CL FW SC SC B1 B1 B1 B1 PoP 12hr 10 10 0 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C Tstms C Obvis PF PF Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 74 52 67 47 68 46 70 Temp 66 61 72 69 57 53 65 63 53 49 66 63 51 47 68 66 Dewpt 64 58 58 56 53 51 52 50 49 46 49 50 48 46 51 53 PWind dir NW NW NW NW NW NW NW NW Wind char LT GN LT GN LT GN LT LT Avg clouds SC SC FW FW CL CL FW FW FW CL FW FW FW FW FW FW PoP 12hr 30 0 0 0 0 0 0 5 Rain shwrs C C Tstms C $$ IAZ048-202100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 629 AM CDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 85 65 81 61 83 Temp 68 75 82 84 81 71 68 66 65 71 77 80 77 69 65 63 63 72 79 81 78 Dewpt 67 71 70 69 69 68 67 66 65 68 67 67 67 66 64 62 63 66 68 69 69 RH 97 87 67 61 67 90 97100100 90 71 65 71 90 97 97100 81 69 67 74 Wind dir NW N N NE NE NE E E E SE E E E SE SE S S S SW SW N Wind spd 3 5 5 6 5 4 3 2 2 4 5 5 4 3 3 2 2 4 5 5 5 Clouds SC SC CL FW FW FW FW SC B1 B1 FW FW FW FW FW SC SC SC SC B1 B1 PoP 12hr 5 10 5 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C Tstms S C Obvis PF Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 77 52 71 48 70 47 73 Temp 66 61 74 71 57 53 68 66 53 48 67 65 52 48 69 68 Dewpt 66 60 58 57 55 52 52 51 49 47 48 50 49 47 50 53 PWind dir N NW NW NW NW NW N NW Wind char LT GN LT GN LT LT LT LT Avg clouds B1 SC FW CL FW FW FW FW FW FW FW FW SC SC SC SC PoP 12hr 40 0 0 0 0 0 0 5 Rain shwrs C S Tstms C S $$ IAZ004-202100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 629 AM CDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 63 80 62 79 Temp 64 71 77 80 79 68 66 64 64 71 76 79 77 68 65 64 64 70 75 78 75 Dewpt 63 66 67 67 68 65 63 62 62 67 68 68 68 65 63 62 63 65 66 67 66 RH 97 84 71 65 69 90 90 93 93 87 76 69 74 90 93 93 97 84 74 69 74 Wind dir NW N NE NE E E E SE SE S S S S S S S S SW NW NW N Wind spd 5 6 5 6 5 4 3 3 4 5 8 8 6 6 6 5 5 6 8 8 6 Clouds SC SC FW FW FW FW FW SC B1 B1 FW FW FW SC SC B1 B2 B1 B1 B1 SC PoP 12hr 0 10 0 20 40 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C Tstms S S S S C Obvis F Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 73 50 67 46 68 45 70 Temp 61 56 69 68 54 51 63 63 50 47 64 64 49 46 67 67 Dewpt 58 51 52 53 51 48 49 48 46 43 46 49 46 44 48 53 PWind dir NW NW NW NW NW N NW SW Wind char LT GN LT GN LT GN LT LT Avg clouds SC FW CL FW FW FW FW FW FW FW FW FW SC FW FW FW PoP 12hr 10 0 0 0 0 0 0 5 $$ IAZ035-202100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 629 AM CDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 64 81 61 82 Temp 66 73 80 83 80 71 66 64 64 71 78 80 77 69 65 63 63 71 78 79 76 Dewpt 66 69 69 68 69 68 65 64 64 67 68 67 68 65 63 62 62 66 69 69 69 RH 100 87 69 61 69 90 97100100 87 71 65 74 87 93 97 97 84 74 72 79 Wind dir NW N N NE NE NE E E E SE SE SE SE SE S S S S SW W NW Wind spd 4 5 6 6 5 4 3 3 2 4 4 5 5 4 4 4 4 5 5 5 5 Clouds SC SC FW FW FW SC SC SC B1 SC SC FW FW FW SC SC B1 SC B1 SC SC PoP 12hr 5 10 0 10 30 QPF 12hr 0 0 0 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C Tstms S C C Obvis PF Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 51 69 46 69 45 72 Temp 64 58 72 71 56 52 67 65 51 47 66 65 50 46 68 68 Dewpt 63 57 56 57 53 50 52 51 47 45 48 51 48 46 51 55 PWind dir NW NW NW NW NW NW N W Wind char LT GN LT GN LT LT LT LT Avg clouds SC SC FW CL FW FW FW FW FW FW FW FW SC SC SC SC PoP 12hr 30 0 0 0 0 0 0 5 Rain shwrs C Tstms C $$ IAZ094-202100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 629 AM CDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 65 83 61 85 Temp 69 77 83 86 82 73 69 67 65 73 79 81 79 71 66 64 63 74 81 84 81 Dewpt 68 72 70 68 68 68 68 67 65 68 66 66 65 65 63 62 62 65 66 66 68 RH 97 85 65 55 63 84 97100100 84 64 60 62 81 90 93 97 74 60 55 65 Wind dir NW N N NE NE NE NE NE E E E E E E SE SE S S S S E Wind spd 3 4 5 6 5 4 3 3 3 3 3 4 4 3 3 2 2 3 3 2 3 Clouds B1 SC FW FW FW FW FW SC B1 SC FW FW CL CL FW FW FW FW SC SC SC PoP 12hr 20 10 5 0 5 QPF 12hr 0.06 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Tstms S S S Obvis F Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 64 81 55 74 50 71 50 73 Temp 69 66 78 76 61 55 72 69 56 51 69 68 55 51 69 69 Dewpt 67 65 60 58 56 53 51 52 51 48 47 48 48 48 47 50 PWind dir N N N NW N N NE NE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC FW CL FW FW FW FW FW FW SC SC SC B1 B1 PoP 12hr 40 10 0 0 5 0 10 10 Rain shwrs S C Tstms S C $$ IAZ017-202100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 629 AM CDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 81 61 78 60 78 Temp 66 72 78 80 77 68 65 63 62 69 75 77 75 66 63 62 62 70 75 76 74 Dewpt 65 68 68 68 68 65 63 63 62 66 67 66 66 64 61 60 60 66 68 68 67 RH 97 87 71 67 74 90 93100100 90 76 69 74 93 93 93 93 87 79 76 79 Wind dir N N NE NE NE E E E SE SE SE SE SE SE S S S SW SW W NW Wind spd 4 5 5 5 5 3 2 2 2 4 4 5 4 3 3 3 3 5 5 5 5 Clouds SC SC FW FW FW SC SC SC B1 B1 SC FW FW FW SC SC B1 B1 B2 B1 SC PoP 12hr 0 5 0 5 30 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms S C S Obvis PF PF Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 56 71 50 65 44 66 44 69 Temp 63 56 68 66 54 51 62 61 50 46 63 62 49 46 66 65 Dewpt 60 53 55 55 51 49 51 50 46 44 48 50 46 44 51 53 PWind dir NW NW NW NW NW NW NW W Wind char LT GN LT GN LT LT LT LT Avg clouds SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 20 0 0 0 0 0 0 5 Rain shwrs S Tstms S $$ IAZ049-202100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 629 AM CDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 63 79 60 81 Temp 66 76 81 83 80 70 68 64 63 70 76 78 76 67 63 62 61 71 78 80 77 Dewpt 66 71 70 68 68 68 66 64 63 66 65 65 65 64 62 61 61 65 67 68 67 RH 100 85 69 61 67 93 93100100 87 69 64 69 90 97 97100 81 69 67 71 Wind dir NW N N NE NE NE E E E E E E E SE SE S S S SW SW NW Wind spd 3 5 6 6 5 4 4 3 3 4 4 4 3 3 3 2 2 4 5 4 4 Clouds SC FW FW FW FW FW FW SC B1 SC SC FW CL CL FW SC SC B1 SC B1 B1 PoP 12hr 10 10 5 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C Tstms C Obvis PF Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 75 51 69 47 69 45 70 Temp 66 61 73 70 57 53 66 64 52 48 66 64 51 47 67 66 Dewpt 64 59 58 56 53 50 51 50 48 46 48 50 48 45 50 52 PWind dir NW NW NW NW NW NW NW NW Wind char LT GN LT GN LT LT LT LT Avg clouds SC SC FW CL FW CL FW FW CL CL FW FW FW SC FW SC PoP 12hr 40 5 0 0 0 0 0 5 Rain shwrs C C Tstms C S $$ IAZ086-202100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 629 AM CDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 85 64 81 61 84 Temp 68 77 83 85 82 73 70 66 64 71 77 80 77 69 65 64 63 73 80 83 81 Dewpt 68 71 70 68 69 70 69 66 64 65 65 65 65 65 64 63 63 66 66 66 68 RH 100 82 65 57 65 90 97100100 81 67 60 67 87 97 97100 79 62 57 65 Wind dir NW N N N NE NE E E E E E E E E E SE S S SW SW NE Wind spd 2 4 6 8 5 5 5 4 4 5 5 5 4 3 2 2 2 2 2 3 3 Clouds B1 SC SC FW FW FW FW SC SC SC FW FW CL CL FW FW FW SC SC SC SC PoP 12hr 20 10 5 0 5 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S Obvis PF Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 63 80 55 73 50 71 48 73 Temp 69 66 77 74 60 56 70 68 56 51 68 68 54 50 69 69 Dewpt 67 64 60 58 56 54 52 51 51 49 48 49 50 48 49 52 PWind dir N NW NW NW NW NW N N Wind char LT GN LT GN LT LT LT LT Avg clouds SC B1 SC FW CL FW FW FW CL FW FW FW SC SC SC SC PoP 12hr 40 10 5 0 0 0 5 5 Rain shwrs S C Tstms S C $$