Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
1059 AM CDT Mon Apr 28 2025

IAZ060-282100-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
1059 AM CDT Mon Apr 28 2025

Date             Mon 04/28/25            Tue 04/29/25            Wed 04/30/25
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                      82          48          66          47          64
Temp                   73 78 79 72 66 56 49 51 60 65 64 54 51 48 49 54 59 63 63
Dewpt                  65 66 63 62 57 48 40 41 43 42 38 39 39 40 42 46 50 52 53
RH                     76 67 58 71 73 74 71 68 53 43 38 57 63 74 77 74 72 67 70
Wind dir                S  S  S SW SW  W NW NW  N  N  N  E  E  E  E  E SE  E  E
Wind spd               24 25 23 19 18 16 14 14 11  9  4  3  4  5  6  9 10  9  8
Wind gust              37 41 35 32    26 25
Clouds                 B2 B1 B1 SC SC SC SC FW FW FW FW FW SC B1 B1 B2 B2 B2 OV
PoP 12hr                     20          30           5          20          70
QPF 12hr                   0.02        0.05           0           0        0.13
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S     S  S                          S  S  L  L  L  L  L
Tstms                   S     S  S                                      S  C  C


Date          Thu 05/01/25  Fri 05/02/25  Sat 05/03/25  Sun 05/04/25
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          54    70      47    68      45    74      54    76
Temp          57 55 64 65   54 49 64 67   52 47 70 72   59 56 72 74
Dewpt         53 52 53 49   43 41 43 42   39 40 46 48   47 47 54 54
PWind dir         E    NW      NW    NW      SE     S       S     S
Wind char        LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2 B2 B2 B1   SC FW FW FW   FW FW FW FW   FW FW SC SC
PoP 12hr         70    60      10    10       0     5      20    30
Rain shwrs     L  L  L  C                                   S  C  C
Tstms          C  C     S                                   S     S

$$
IAZ039-282100-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
1059 AM CDT Mon Apr 28 2025

Date             Mon 04/28/25            Tue 04/29/25            Wed 04/30/25
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                      80          48          64          42          62
Temp                   70 76 76 69 65 53 49 49 58 63 62 52 46 44 43 54 58 60 58
Dewpt                  63 66 65 63 59 51 43 43 43 41 37 38 37 37 37 44 46 48 49
RH                     78 71 69 81 81 93 80 80 57 44 39 59 71 76 79 69 64 64 72
Wind dir                S  S  S SW SW  W NW NW NW NW  N NE  E  E  E SE SE SE  E
Wind spd               24 26 25 23 18 17 19 18 16 12  5  3  3  4  6 10 11 10  9
Wind gust              37 41 40 36 29 27 31 28
Clouds                 B2 B2 SC SC SC SC B1 SC SC FW FW FW FW SC B1 B1 B2 B2 B2
PoP 12hr                     50          40           0           5          50
QPF 12hr                   0.09        0.07           0           0        0.08
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S  C  S                                C  C  C  C  C
Tstms                   C  S  C  S                                         S  C


Date          Thu 05/01/25  Fri 05/02/25  Sat 05/03/25  Sun 05/04/25
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          51    68      45    65      42    71      51    76
Temp          53 52 62 62   50 46 61 62   47 45 67 69   56 53 71 71
Dewpt         50 50 53 49   44 41 42 40   39 39 44 47   46 46 52 53
PWind dir         E     N      NW    NW       E     S       S     S
Wind char        LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2 B2 B2 B1   B1 FW FW FW   FW FW FW FW   FW FW FW SC
PoP 12hr         70    60      20    20       0     5      10    20
Rain shwrs     C  L  L  C    S  S  S                           S  S
Tstms          C  C     S                                         S

$$
IAZ048-282100-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
1059 AM CDT Mon Apr 28 2025

Date             Mon 04/28/25            Tue 04/29/25            Wed 04/30/25
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                      82          46          66          44          63
Temp                   70 78 78 69 63 53 46 49 60 66 63 53 48 47 46 54 58 62 61
Dewpt                  65 67 65 62 55 46 41 41 42 40 35 37 37 39 40 45 49 51 52
RH                     84 69 64 78 75 77 83 74 51 38 35 54 65 74 79 71 72 67 72
Wind dir                S  S  S SW  W NW NW NW NW  N  N  E  E  E  E SE SE  E  E
Wind spd               25 26 24 20 17 18 17 16 13 10  5  4  4  5  6 10 10 10  8
Wind gust              39 41 36 33    29 27
Clouds                 B2 B1 B1 SC SC SC SC FW FW FW FW FW FW SC B1 B2 B2 B2 OV
PoP 12hr                     40          30           0          20          60
QPF 12hr                   0.03        0.02           0           0        0.09
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S     S                             S  S  C  C  L  L  L
Tstms                   S     S                                            S  C
Wind chill                               39
Min chill                                39    39


Date          Thu 05/01/25  Fri 05/02/25  Sat 05/03/25  Sun 05/04/25
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          51    70      45    68      44    74      52    76
Temp          54 53 63 64   51 46 63 65   49 46 69 71   57 54 71 72
Dewpt         53 52 53 49   44 41 43 42   39 40 46 50   48 48 55 56
PWind dir         E    NW      NW    NW       E     S       S     S
Wind char        LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2 B2 B2 B1   SC FW FW FW   FW FW FW FW   FW FW SC SC
PoP 12hr         70    60      20    10       0     5      20    30
Rain shwrs     L  L  L  C    S                              S  C  C
Tstms          C  S     S                                         S

$$
IAZ004-282100-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
1059 AM CDT Mon Apr 28 2025

Date             Mon 04/28/25            Tue 04/29/25            Wed 04/30/25
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          39          62          39          68
Temp                   73 79 75 60 50 44 39 43 55 61 60 49 41 45 41 54 63 65 63
Dewpt                  63 62 55 51 45 37 32 32 31 28 24 27 28 30 31 39 42 44 45
RH                     71 56 50 72 83 76 76 65 40 28 25 42 59 55 67 57 46 46 52
Wind dir                S  S SW  W NW NW NW NW NW  N  N  E SE SE SE SE  S SE SE
Wind spd               31 31 23 19 21 23 21 18 14 11  5  4  5  6  9 12 13 12 10
Wind gust              46 47 34 29 33 34 33
Clouds                 B2 SC SC SC B1 B2 SC FW FW CL FW FW FW FW SC B1 B1 B1 B1
PoP 12hr                     50          60           0           5          20
QPF 12hr                   0.03        0.04           0           0        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 C  L     S                             S  S  S  S  C
Tstms                      C  C  S
Wind chill                            35 29 35                   35
Min chill                                27    28          37    35    38


Date          Thu 05/01/25  Fri 05/02/25  Sat 05/03/25  Sun 05/04/25
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          47    68      42    67      42    75      52    77
Temp          51 49 62 61   47 43 61 63   47 44 70 72   57 54 72 71
Dewpt         47 46 46 40   38 37 38 35   36 36 42 44   45 45 51 52
PWind dir         S    NW      NW    NW      SE     S       S     S
Wind char        LT    BZ      GN    GN      GN    GN      GN    BZ
Avg clouds    B1 B1 B1 SC   SC FW FW FW   FW FW FW CL   FW FW SC SC
PoP 12hr         30    40      10    10       0     5      10    30
Rain shwrs     C  C  C  C                                      S  C
Tstms                                                             S

$$
IAZ035-282100-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
1059 AM CDT Mon Apr 28 2025

Date             Mon 04/28/25            Tue 04/29/25            Wed 04/30/25
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          43          65          42          65
Temp                   71 79 77 67 56 49 43 49 58 64 63 52 46 46 43 54 60 62 61
Dewpt                  65 65 60 52 49 41 37 37 37 34 29 31 33 35 36 41 46 48 49
RH                     81 62 56 59 77 74 79 63 45 32 27 44 60 65 76 61 60 60 65
Wind dir                S  S  S SW  W NW NW NW  N  N  N  E  E  E SE SE SE SE SE
Wind spd               27 27 25 18 18 20 17 16 13 10  4  3  3  5  5  9 10 10  8
Wind gust              41 43 37    29 31 27
Clouds                 B2 SC SC FW SC B1 SC FW FW FW FW FW FW SC SC B2 B2 B2 B2
PoP 12hr                     30          20           0          10          40
QPF 12hr                   0.01        0.03           0           0        0.06
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                    S  S                                C  C  C  C  C
Tstms                         S  S
Wind chill                               35
Min chill                                35    36                39


Date          Thu 05/01/25  Fri 05/02/25  Sat 05/03/25  Sun 05/04/25
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          49    69      44    68      42    74      52    76
Temp          52 51 64 63   49 45 62 64   48 45 70 71   56 54 71 71
Dewpt         50 50 50 44   40 39 40 38   37 38 44 47   46 47 53 54
PWind dir         E    NW      NW    NW       E     S       S     S
Wind char        LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2 B2 B2 B1   SC FW FW FW   FW FW FW FW   FW FW SC SC
PoP 12hr         50    50      20    10       0     5      20    30
Rain shwrs     C  C  C  C    S                              S  C  C
Tstms          S                                                  S

$$
IAZ094-282100-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
1059 AM CDT Mon Apr 28 2025

Date             Mon 04/28/25            Tue 04/29/25            Wed 04/30/25
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          48          67          50          66
Temp                   73 77 77 70 67 53 48 52 61 67 65 58 53 51 51 56 62 65 64
Dewpt                  65 66 64 63 59 51 43 44 46 45 44 44 43 44 47 52 55 56 57
RH                     76 69 64 78 75 93 83 74 58 45 46 59 69 77 86 86 78 73 78
Wind dir                S  S  S SW SW  W NW  N  N  N NE  E  E  E  E  E SE SE SE
Wind spd               24 24 21 19 17 16 14 13 10  9  5  5  5  6  9  9 10 10  8
Wind gust              36 37 34 31 27
Clouds                 B2 B1 B1 B1 SC B1 SC FW SC SC SC SC B1 B2 B2 B2 B2 B2 OV
PoP 12hr                     20          40           5          50          80
QPF 12hr                      0        0.13           0        0.06        0.19
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S     C  C                          C  C  D  D  D  D  D
Tstms                   S  S  C  C                             S        S  C  C


Date          Thu 05/01/25  Fri 05/02/25  Sat 05/03/25  Sun 05/04/25
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          55    69      47    68      45    73      53    74
Temp          59 56 65 64   54 49 64 65   51 47 70 70   58 55 71 72
Dewpt         56 56 56 51   44 43 44 44   41 42 49 50   49 50 55 55
PWind dir         S    NW      NW    NW       E     S       S     S
Wind char        LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2 B2 B2 B1   SC FW FW FW   FW FW FW FW   FW SC SC B1
PoP 12hr         80    70      10    10       0     5      20    30
Rain shwrs     D  L  L  C                                   S  C  C
Tstms          C  C     C                                   S     S

$$
IAZ017-282100-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
1059 AM CDT Mon Apr 28 2025

Date             Mon 04/28/25            Tue 04/29/25            Wed 04/30/25
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                      78          43          62          39          63
Temp                   67 74 74 67 58 47 43 48 55 61 60 48 41 43 41 52 58 60 58
Dewpt                  63 66 63 56 51 43 38 38 38 36 31 32 34 33 34 40 44 46 46
RH                     87 76 69 68 77 86 82 68 53 39 33 54 76 67 76 63 59 60 64
Wind dir                S  S  S SW  W  W NW NW NW NW  N  E  E  E SE SE SE SE SE
Wind spd               27 28 25 20 18 21 21 19 16 12  5  3  3  5  6 10 12 11  9
Wind gust              42 43 40 32 28 33 34 29
Clouds                 OV B1 SC SC SC B1 B1 SC FW FW CL FW FW FW SC B1 B1 B1 B1
PoP 12hr                     40          50           0           5          30
QPF 12hr                   0.05        0.03           0           0        0.04
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C     C  C                                S  S  C  C  C
Tstms                   C     C  C
Wind chill                               34
Min chill                                34    34          38    35    38


Date          Thu 05/01/25  Fri 05/02/25  Sat 05/03/25  Sun 05/04/25
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          47    67      42    64      41    71      51    74
Temp          50 49 60 60   48 44 59 61   46 44 66 69   55 53 70 70
Dewpt         48 48 51 46   41 39 41 39   37 36 43 47   46 45 52 53
PWind dir         E    NW      NW    NW       E     S       S     S
Wind char        LT    GN      GN    GN      LT    GN      GN    BZ
Avg clouds    B2 B2 B2 B1   SC FW FW FW   FW FW FW FW   FW FW SC SC
PoP 12hr         50    50      20    10       0     5      10    20
Rain shwrs     C  C  C  C    S                                 S  S
Tstms                                                             S

$$
IAZ049-282100-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
1059 AM CDT Mon Apr 28 2025

Date             Mon 04/28/25            Tue 04/29/25            Wed 04/30/25
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                      80          46          65          42          62
Temp                   69 76 76 68 63 51 47 47 58 65 63 52 47 44 44 54 58 60 58
Dewpt                  63 66 65 62 58 48 42 41 43 41 37 37 37 37 38 44 48 49 51
RH                     81 71 69 81 84 89 83 79 57 41 38 56 68 76 79 69 69 67 77
Wind dir                S  S  S SW SW  W NW NW NW  N  N NE  E  E  E SE SE  E  E
Wind spd               26 27 25 23 19 17 18 17 13 11  5  3  4  4  6  9 10 10  8
Wind gust              40 43 41 36 29 27 28 28
Clouds                 B2 B1 B1 SC SC SC SC SC FW FW FW FW FW SC B1 B2 B2 B2 OV
PoP 12hr                     50          40           0          10          60
QPF 12hr                   0.04        0.05           0           0        0.10
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C     C                                   C  C  L  L  L
Tstms                   C     C                                            S  C


Date          Thu 05/01/25  Fri 05/02/25  Sat 05/03/25  Sun 05/04/25
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          51    69      45    66      42    72      50    75
Temp          53 52 62 62   49 46 61 62   46 45 67 69   55 52 71 71
Dewpt         51 51 53 50   43 40 42 41   39 39 45 47   46 45 53 54
PWind dir         E    NW      NW    NW       E     S       S     S
Wind char        LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    OV B2 B2 B2   SC FW FW FW   FW FW FW FW   FW FW SC SC
PoP 12hr         70    60      20    10       0     5      20    20
Rain shwrs     L  L  L  C    S     S                        S  S  S
Tstms          C  C     S                                         S

$$
IAZ086-282100-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
1059 AM CDT Mon Apr 28 2025

Date             Mon 04/28/25            Tue 04/29/25            Wed 04/30/25
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          51          68          48          65
Temp                   76 80 78 71 69 56 51 56 64 68 65 56 51 51 50 56 61 63 63
Dewpt                  65 66 66 65 61 56 47 45 47 47 45 44 43 43 44 50 54 55 56
RH                     69 62 67 81 76100 86 66 54 47 48 64 74 74 80 80 78 75 78
Wind dir                S  S  S SW SW  W NW NW NW  N  N NE  E  E  E  E SE SE  E
Wind spd               26 26 23 21 19 17 16 16 12 11  5  5  5  6  9 10 10 10  9
Wind gust              40 40 35 33 29    26
Clouds                 B1 B2 B1 B1 B1 B1 SC SC SC SC SC SC SC B1 B2 B2 B2 B2 OV
PoP 12hr                     30          50           5          30          80
QPF 12hr                   0.01        0.05           0        0.01        0.18
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S  S  C                          C  C  L  L  D  D  D
Tstms                      S  S  C                                      S  C  C


Date          Thu 05/01/25  Fri 05/02/25  Sat 05/03/25  Sun 05/04/25
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    69      47    68      45    72      52    76
Temp          59 57 65 65   54 49 64 64   50 47 69 70   57 54 73 73
Dewpt         56 56 58 53   47 43 46 45   42 42 48 50   47 47 55 55
PWind dir        SE    NW      NW    NW       E     S       S     S
Wind char        LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    OV B2 B2 B1   SC FW FW FW   FW FW FW FW   FW FW SC SC
PoP 12hr         80    70      20    10       0     5      10    20
Rain shwrs     D  D  L  C    S                                 S  S
Tstms          C  C     C                                         S

$$