Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
614 PM CDT Thu May 22 2025

IAZ060-230900-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
614 PM CDT Thu May 22 2025

Date           05/22/25      Fri 05/23/25            Sat 05/24/25            Sun
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                      42          67          51          69          52
Temp             60 53 47 43 44 59 66 66 62 57 54 52 52 58 64 67 66 60 56 53 53
Dewpt            43 43 42 40 41 45 42 43 46 47 47 48 47 48 47 47 47 47 46 45 45
RH               53 69 83 89 89 60 42 43 56 69 77 86 83 69 54 49 50 62 69 74 74
Wind dir         NW NW  W  W  W  W  W  E SE NE NE NE  E  E  E  E  E  E  E  E  E
Wind spd          9  4  3  3  3  5  4  4  4  4  4  5  5  6  9  9  8  6  6  8  9
Clouds           SC FW CL FW SC B1 B1 B2 OV OV B2 B2 B2 B2 B1 B2 B2 B2 B1 B1 B2
PoP 12hr                      0          20          30          10          40
QPF 12hr                      0        0.02        0.03           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                C  S  S                 C  C  C  C  S


Date           05/25  Mon 05/26/25  Tue 05/27/25  Wed 05/28/25  Thu 05/29/25
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          65      49    65      48    67      48    72      53    76
Temp          62 63   53 51 61 62   54 51 62 65   53 52 67 69   57 56 71 73
Dewpt         47 45   44 43 44 46   47 47 48 47   46 47 49 49   49 50 52 51
PWind dir         E       E     E      NE     N       N    NE      SE     W
Wind char        GN      LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B2   B1 B1 B2 B2   B2 B1 B1 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         20      20    30      30    20      10    20      10    20
Rain shwrs     S  S    S  S  C  C    C  C  S  S             S          S  S
Tstms                                                                     S

$$
IAZ039-230900-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
614 PM CDT Thu May 22 2025

Date           05/22/25      Fri 05/23/25            Sat 05/24/25            Sun
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                      43          67          48          69          48
Temp             61 52 46 44 46 60 65 67 63 55 51 50 49 59 65 67 65 57 53 50 50
Dewpt            40 40 41 39 40 45 44 43 45 46 45 45 44 45 44 43 43 43 42 42 42
RH               46 63 83 82 79 58 46 42 52 72 80 83 83 60 46 42 45 59 66 74 74
Wind dir          N NW  W  W  W  W NW NW  N  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd          9  5  4  4  5  8  9  5  5  4  4  4  4  5  6  6  6  5  5  5  5
Clouds           SC FW FW CL FW FW B1 B1 B2 B2 B2 B2 B1 SC SC SC B1 B1 B1 B1 SC
PoP 12hr                      0          10          10           5          10
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00


Date           05/25  Mon 05/26/25  Tue 05/27/25  Wed 05/28/25  Thu 05/29/25
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          68      47    68      48    67      48    73      52    76
Temp          66 66   52 50 65 63   53 51 63 63   52 51 69 69   56 54 72 73
Dewpt         43 41   43 43 44 45   45 45 47 46   46 46 47 47   48 49 51 51
PWind dir         E       E     E      NE    NE       N     N       E     W
Wind char        GN      LT    GN      LT    LT      LT    LT      LT    GN
Avg clouds    B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   SC SC SC SC   SC FW FW SC
PoP 12hr         10      10    20      30    30      10    20      10    10
Rain shwrs                      S    S  C  C  S             S

$$
IAZ048-230900-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
614 PM CDT Thu May 22 2025

Date           05/22/25      Fri 05/23/25            Sat 05/24/25            Sun
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                      42          67          50          68          49
Temp             59 52 46 43 44 59 65 67 62 56 53 51 51 57 64 66 65 58 54 51 51
Dewpt            44 43 41 39 39 44 43 42 45 47 48 48 47 47 47 47 47 47 46 44 45
RH               57 71 83 86 82 57 45 40 54 72 83 89 86 69 54 50 52 67 74 77 80
Wind dir         NW NW NW  W  W  W  W  N SW NE NE NE NE  E  E  E  E  E  E  E  E
Wind spd          8  4  3  3  3  6  4  4  5  3  3  5  5  6  9  9  8  6  6  6  6
Clouds           SC FW CL FW FW SC B2 B2 OV OV OV B2 B2 B1 B2 B1 B2 B2 B1 B1 B1
PoP 12hr                      0          20          30          10          30
QPF 12hr                      0        0.02        0.03           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  C  S                 C  C  S  S  S


Date           05/25  Mon 05/26/25  Tue 05/27/25  Wed 05/28/25  Thu 05/29/25
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          66      47    65      47    67      48    72      52    76
Temp          63 63   52 50 62 62   51 50 62 64   52 50 67 69   56 54 71 73
Dewpt         45 45   45 44 44 46   47 47 48 48   47 47 48 49   49 51 52 52
PWind dir         E       E     E      NE    NE      NE    NE      SE    SW
Wind char        GN      LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B2   B1 B1 B1 B2   B1 B1 B1 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         20      20    30      30    20      10    20      20    20
Rain shwrs     S  S    S  S  S  C    C  C  S  S             S       S     S
Tstms                                                               S     S

$$
IAZ004-230900-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
614 PM CDT Thu May 22 2025

Date           05/22/25      Fri 05/23/25            Sat 05/24/25            Sun
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                      41          66          48          67          47
Temp             60 51 44 41 43 59 65 66 62 55 52 49 49 57 64 66 64 56 52 48 49
Dewpt            38 38 38 36 37 43 41 40 43 44 45 44 42 43 42 41 40 40 40 39 40
RH               44 61 79 82 79 55 41 38 50 66 77 83 77 59 45 40 41 55 63 71 71
Wind dir          N  W  W  W  W NW  N  N  E  E NE NE NE  E  E  E  E  E  E  E  E
Wind spd          6  4  5  6  5  6  5  4  6  5  5  5  5  6  9  9  9  6  6  5  5
Clouds           SC FW CL FW FW SC B2 B2 OV OV OV B2 B2 B1 B1 B1 B1 B2 B1 B1 B2
PoP 12hr                      0          20          40          10          20
QPF 12hr                      0           0        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S  C  C  S                       S  S


Date           05/25  Mon 05/26/25  Tue 05/27/25  Wed 05/28/25  Thu 05/29/25
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          68      47    67      47    67      47    71      50    76
Temp          65 65   51 49 64 62   51 50 62 63   51 49 66 66   53 53 70 72
Dewpt         42 40   41 41 42 42   43 43 45 44   44 44 45 45   46 46 49 48
PWind dir         E       E     E      NE    NE       N    NE       S    SW
Wind char        GN      LT    GN      LT    LT      LT    LT      LT    GN
Avg clouds    B1 B2   B2 B1 B1 B1   B1 B1 B1 B1   B1 SC SC SC   SC FW SC SC
PoP 12hr         20      20    30      30    40      10    20      10    20
Rain shwrs        S    S        C    S  C  S  C             S             S
Tstms                                S

$$
IAZ035-230900-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
614 PM CDT Thu May 22 2025

Date           05/22/25      Fri 05/23/25            Sat 05/24/25            Sun
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                      41          67          49          68          48
Temp             61 52 45 42 43 60 66 67 62 55 51 50 50 57 64 66 65 58 53 50 50
Dewpt            42 41 39 38 39 43 41 41 45 45 46 47 45 45 44 45 45 43 43 42 43
RH               49 66 79 86 86 53 40 39 54 69 83 89 83 64 48 47 48 57 69 74 77
Wind dir          N NW  W  W  W  W NW NW  S SE NE NE NE  E  E  E  E  E  E  E  E
Wind spd          9  3  3  3  3  5  4  3  5  4  4  4  4  5  8  8  6  5  5  5  5
Clouds           SC FW FW FW SC SC B1 B2 OV OV B2 B2 B2 B1 B1 B2 B2 B2 B2 B1 B2
PoP 12hr                      0          30          30          10          30
QPF 12hr                      0        0.01        0.06           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S  C  C  S  S              C  C  S  S  S


Date           05/25  Mon 05/26/25  Tue 05/27/25  Wed 05/28/25  Thu 05/29/25
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          67      47    66      46    67      46    71      50    76
Temp          65 65   51 50 63 62   51 50 62 63   51 50 67 68   54 53 71 72
Dewpt         43 43   43 43 43 44   44 45 46 45   45 46 47 48   48 49 50 51
PWind dir         E       E     E       E    NE      NE    NE      SE    SW
Wind char        GN      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1   B1 B2 B1 B1   B1 B1 B1 B1   SC SC SC SC   SC SC FW SC
PoP 12hr         20      20    20      30    30      10    20      20    20
Rain shwrs     S  S    S  S  S  S    C  C  S  C    S        S    S  S     S
Tstms                                              S             S  S     S

$$
IAZ094-230900-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
614 PM CDT Thu May 22 2025

Date           05/22/25      Fri 05/23/25            Sat 05/24/25            Sun
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                      43          65          51          68          51
Temp             58 52 47 44 45 58 63 65 60 56 54 53 51 59 64 66 65 59 56 54 53
Dewpt            44 44 42 41 41 46 45 46 48 48 48 48 47 49 50 50 49 49 48 47 47
RH               59 74 83 89 86 64 52 50 64 74 80 83 86 69 60 56 56 69 74 77 80
Wind dir          N  N NW NW  W  W  E  E SE  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd         10  5  3  3  3  4  3  5  5  5  5  6  8 10 11 11 10  9  9 10 11
Clouds           SC FW CL FW SC B1 B2 B2 OV B2 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2
PoP 12hr                      0          30          30          20          50
QPF 12hr                      0        0.01        0.01           0        0.03
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S  C  S  S  S  S  S  S  S  C  C  C  C  C
Tstms                                     S


Date           05/25  Mon 05/26/25  Tue 05/27/25  Wed 05/28/25  Thu 05/29/25
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          61      47    61      48    66      48    71      52    74
Temp          59 59   52 50 58 58   53 50 62 63   53 50 67 67   56 54 70 71
Dewpt         50 48   45 44 47 47   47 48 49 47   46 47 50 49   50 51 53 52
PWind dir         E       E     E      NE     N       N    NE      SE     W
Wind char        GN      GN    GN      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B2   B2 B2 B2 B1   B2 B1 B1 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         40      30    30      30    20      10    20      20    20
Rain shwrs     C  S    S  C  C  S    C  C  S                S       S  S  S
Tstms                  S                                            S     S

$$
IAZ017-230900-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
614 PM CDT Thu May 22 2025

Date           05/22/25      Fri 05/23/25            Sat 05/24/25            Sun
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                      42          66          46          67          45
Temp             59 51 46 44 45 59 65 66 63 54 50 47 47 57 64 66 64 55 50 48 48
Dewpt            39 39 38 38 39 45 42 41 43 45 45 44 42 43 43 42 42 41 40 39 40
RH               47 63 73 79 79 60 43 40 48 71 83 89 83 59 46 42 45 59 68 71 74
Wind dir          N NW  W  W  W NW NW  N NE NE  E  E  E  E  E  E  E  E  E  E  E
Wind spd         10  5  5  6  5  8  6  5  4  4  4  4  4  5  8  6  5  5  5  4  5
Clouds           SC FW FW FW CL FW B1 B2 B2 OV B2 B1 B1 SC SC B1 B1 B2 B1 B1 B1
PoP 12hr                      0          20          20           5          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  S


Date           05/25  Mon 05/26/25  Tue 05/27/25  Wed 05/28/25  Thu 05/29/25
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          67      45    67      46    66      46    71      50    75
Temp          65 65   50 49 64 62   51 50 62 62   51 50 67 67   53 53 70 71
Dewpt         43 41   41 41 43 43   44 43 45 44   45 44 46 46   47 47 49 49
PWind dir         E       E     E      NE    NE      NE     N      SE     W
Wind char        GN      LT    GN      LT    LT      LT    LT      LT    GN
Avg clouds    B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   SC SC SC SC   SC FW FW SC
PoP 12hr         10      10    20      30    30      20    20      10    20
Rain shwrs                      S    C  C  C  C    S        S             S
Tstms                                S

$$
IAZ049-230900-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
614 PM CDT Thu May 22 2025

Date           05/22/25      Fri 05/23/25            Sat 05/24/25            Sun
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                      41          68          49          68          48
Temp             60 50 45 42 44 60 66 68 64 55 52 50 50 57 64 67 64 56 53 50 50
Dewpt            40 40 40 38 39 44 43 42 44 46 47 47 44 45 45 44 45 44 43 42 42
RH               47 68 82 86 82 55 43 39 48 72 83 89 80 64 50 43 50 64 69 74 74
Wind dir          N NW NW  W  W  W  W NW NW NW NE NE  E  E  E  E  E  E  E  E  E
Wind spd          9  4  3  4  4  8  6  4  4  4  4  4  4  5  6  8  6  5  5  5  6
Clouds           SC FW FW FW FW FW B1 B2 B2 OV B2 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1
PoP 12hr                      0          20          30          10          30
QPF 12hr                      0           0        0.04           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  C  S                 C  C  C  C  S


Date           05/25  Mon 05/26/25  Tue 05/27/25  Wed 05/28/25  Thu 05/29/25
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          66      47    65      47    67      47    72      51    76
Temp          63 63   50 49 63 62   51 50 62 63   51 50 67 67   54 53 71 71
Dewpt         43 43   43 42 43 45   45 45 46 46   46 46 47 47   48 49 51 50
PWind dir         E       E     E       E    NE       N     N       S     W
Wind char        GN      LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         20      20    20      30    20      10    20      20    10
Rain shwrs     S  S    S        S    C  C  S  S             S       S
Tstms                                                               S

$$
IAZ086-230900-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
614 PM CDT Thu May 22 2025

Date           05/22/25      Fri 05/23/25            Sat 05/24/25            Sun
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                      42          68          50          69          51
Temp             61 52 47 44 45 60 66 68 65 57 53 51 51 59 66 68 66 59 55 53 53
Dewpt            46 45 42 40 41 46 44 43 45 48 48 48 47 49 48 48 48 47 46 46 46
RH               58 77 83 86 86 60 45 40 48 72 83 89 86 69 52 49 52 64 72 77 77
Wind dir         NW NW NW  W  W  W  W NW  E SE NE NE  E  E  E  E  E  E  E  E  E
Wind spd          9  5  4  5  5  6  6  4  4  4  5  5  6  8 10 10  9  8  9  9 10
Clouds           SC FW CL CL FW SC B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B2 B1 B1 B2
PoP 12hr                     10          20          20          10          30
QPF 12hr                      0           0        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  S  S                 S  S  C  C  C


Date           05/25  Mon 05/26/25  Tue 05/27/25  Wed 05/28/25  Thu 05/29/25
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          64      47    65      49    67      49    72      52    77
Temp          62 63   53 50 61 62   54 52 62 64   54 52 67 69   57 56 72 73
Dewpt         47 46   44 43 46 46   47 48 50 48   48 48 50 50   50 51 54 53
PWind dir         E       E     E      NE     N       N     N       W     W
Wind char        GN      GN    GN      LT    LT      LT    LT      LT    GN
Avg clouds    B2 B2   B2 B1 B1 B1   B2 B1 B1 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         30      20    30      30    20       5    20      10    20
Rain shwrs     C  S       S  C  C    S  C  S  S             S          S  S
Tstms                                                                     S

$$