Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
530 AM CST Fri Jan 31 2025

IAZ060-312200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
530 AM CST Fri Jan 31 2025

Date             Fri 01/31/25            Sat 02/01/25            Sun 02/02/25
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      49          30          46          34          55
Temp             41 41 45 48 43 35 32 30 30 33 40 45 43 40 39 36 35 38 49 54 47
Dewpt            38 36 34 32 30 28 28 28 28 29 32 35 37 38 38 36 34 35 38 38 35
RH               89 82 65 54 60 75 85 92 92 85 73 68 79 92 96100 96 89 66 54 63
Wind dir         NE  N  N  N  N NE  E SE SE SE  S  S  S  S  S SW SW SW  W  W NW
Wind spd         10 10 14 14  8  4  4  5 10 14 18 17 13 10  8  6  5  5  9  9  5
Wind gust                                      28 27
Clouds           OV OV SC FW FW FW FW FW B1 B2 OV B2 OV OV B2 B1 B1 B1 B1 B1 B2
PoP 12hr                     50           0           5           0           0
QPF 12hr                   0.03           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain              C  S
Wind chill       35 35 38             24 21 23 31 37 36 34 33    29
Min chill        35    33    37    26    20    20    32    31    29    29


Date               Mon 02/03/25  Tue 02/04/25  Wed 02/05/25  Thu 02/06/25
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            27    40      18    34      24    36      20    32
Temp          35   29 36 33 24   20 31 32 28   26 33 34 29   22 29 28
Dewpt         29   22 20 19 15   10 15 17 21   21 26 25 24   19 17 13
PWind dir           N     N      NE    NE       E    NE       N    NW
Wind char          LT    GN      GN    GN      LT    GN      LT    GN
Avg clouds    B2   B2 B2 B1 B1   B2 B2 B2 OV   OV OV B2 B2   B2 B1 SC
PoP 12hr            5     0       0     0      20    20      30    20
Rain                                                  S  C
Snow                                            S  S          C  S

$$
IAZ039-312200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
530 AM CST Fri Jan 31 2025

Date             Fri 01/31/25            Sat 02/01/25            Sun 02/02/25
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      49          26          40          32          53
Temp             40 40 45 48 41 33 29 28 27 29 36 39 38 37 36 35 33 37 47 51 42
Dewpt            35 31 30 28 27 26 25 24 23 25 27 29 32 34 35 35 33 35 38 37 34
RH               82 70 55 46 57 75 85 85 85 85 69 67 79 89 96100100 92 71 59 73
Wind dir          N NE  N  N  N NE  E  E SE SE SE SE  S  S  S  S  S SW SW  W NW
Wind spd         11 12 16 17 10  5  5  6 10 17 20 20 18 13 10  6  5  6 10 12  9
Wind gust                                         31 28
Clouds           OV OV FW CL CL FW SC SC B1 B2 OV B2 OV OV B2 B1 SC SC SC SC B1
PoP 12hr                     10           0          10          10           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       33 33 38    34 27 23 21 17 17 25 29 28 28 29 29    31
Min chill        33    31    33    22    15    16    26    26    28    28    36


Date               Mon 02/03/25  Tue 02/04/25  Wed 02/05/25  Thu 02/06/25
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            25    36      15    31      21    33      18    29
Temp          33   27 33 28 21   18 27 28 25   23 30 31 26   20 27 25
Dewpt         24   16 17 15 10    8 10 15 17   19 23 23 21   17 17 12
PWind dir           N     N       N    NE       E     E       N    NW
Wind char          GN    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2   B2 B2 B2 B1   B1 B2 B2 OV   OV B2 B2 B2   B2 B1 B1
PoP 12hr           10    10       0    10      20    20      30    20
Rain                                                  S
Snow                                       S    S  S     C    C  S

$$
IAZ048-312200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
530 AM CST Fri Jan 31 2025

Date             Fri 01/31/25            Sat 02/01/25            Sun 02/02/25
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      50          27          45          31          55
Temp             41 40 45 49 42 33 30 28 28 32 38 43 41 39 37 35 33 37 49 52 45
Dewpt            38 33 32 30 29 27 27 26 26 28 31 34 37 38 37 35 33 35 37 37 34
RH               89 76 60 48 60 78 88 92 92 85 76 70 85 96100100100 92 63 56 65
Wind dir          N  N  N  N  N NE  E SE SE SE SE  S  S  S  S SW SW SW  W  W NW
Wind spd          9 12 16 16  8  5  4  8 10 17 19 19 14 10  6  5  5  5 10 11  8
Wind gust                                      29 29
Clouds           OV OV FW CL FW FW FW SC B1 B2 OV B2 OV OV B1 B1 B1 SC SC SC B2
PoP 12hr                     20           0          10           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain              S
Wind chill       35 33 38             20 19 21 28 35 33 32
Min chill        35    32    35    24    18    18    29    30    28    28    39


Date               Mon 02/03/25  Tue 02/04/25  Wed 02/05/25  Thu 02/06/25
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            25    37      15    32      21    34      18    30
Temp          33   27 33 30 21   18 28 30 26   23 31 31 25   20 26 26
Dewpt         27   19 18 18 12    9 13 17 19   19 25 25 22   18 16 13
PWind dir           N     N       N    NE       E    NE       N    NW
Wind char          GN    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2   B2 B2 B2 B2   B2 B2 B2 OV   OV B2 B2 B2   B2 B1 B1
PoP 12hr           10     5       0     5      20    20      30    20
Rain                                                  S
Snow                                            S  S     C    C  S

$$
IAZ004-312200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
530 AM CST Fri Jan 31 2025

Date             Fri 01/31/25            Sat 02/01/25            Sun 02/02/25
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      43          25          42          29          48
Temp             28 31 39 42 36 28 27 26 27 30 36 40 39 35 34 31 30 34 44 45 35
Dewpt            24 26 26 25 24 24 24 23 23 26 30 32 33 33 33 30 28 30 32 30 25
RH               85 81 59 50 61 85 88 88 85 85 79 73 79 92 96 96 92 85 62 55 66
Wind dir          N  N  N  N  N NE  E SE SE SE  S  S  S  S SW SW  W  W NW NW  N
Wind spd         11 16 18 16  9  6  8 10 17 21 24 21 17 12 10  9  8 10 14 16 11
Wind gust                                   32 36 32
Clouds           FW CL CL CL FW SC SC B1 B2 B2 OV B2 B2 SC B1 SC SC SC SC B1 B1
PoP 12hr                      0           5          10           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       18 20 30 34 29 21 19 16 14 17 24 30 30 26 26 24 22 26 37 38 27
Min chill        18    17    28    19    14    14    26    25    22    24    27


Date               Mon 02/03/25  Tue 02/04/25  Wed 02/05/25  Thu 02/06/25
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            16    25       6    23      11    26       9    23
Temp          25   20 22 19 12    9 19 20 16   13 22 22 18   11 20 18
Dewpt         15   10 11  8  4    1  7 10 12   10 15 15 13    9 10  9
PWind dir           N     N       N    NE      NE    NE       N    NW
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2   B2 B2 B2 B1   B2 B2 OV OV   B2 B2 B2 B2   B1 B1 B1
PoP 12hr           30    30       5    20      10    20      30    20
Snow                C  C             S  S             S  S    C  S  S

$$
IAZ035-312200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
530 AM CST Fri Jan 31 2025

Date             Fri 01/31/25            Sat 02/01/25            Sun 02/02/25
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      48          26          44          29          53
Temp             33 35 44 47 39 31 28 27 28 31 38 43 40 37 35 33 30 35 48 50 41
Dewpt            28 29 29 28 27 26 26 25 26 28 31 33 35 36 35 33 30 33 35 34 30
RH               82 78 55 47 62 81 92 92 92 88 76 67 82 96100100100 92 60 54 65
Wind dir          N  N  N  N  N NE  E SE SE SE  S  S  S  S  S SW SW SW  W NW  N
Wind spd         12 13 16 16  8  4  5  9 13 18 20 20 14 10  6  5  5  5 11 12  8
Wind gust                                      32 31
Clouds           B1 FW CL CL FW FW SC SC B1 B2 OV B2 OV B2 B1 B1 SC SC SC SC B2
PoP 12hr                      5           0          10           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       24 26 36    33 25 22 19 17 19 28 35 32 30
Min chill        23    23    32    22    17    17    29    29    24    25    35


Date               Mon 02/03/25  Tue 02/04/25  Wed 02/05/25  Thu 02/06/25
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            21    33      11    29      17    31      14    28
Temp          30   24 30 25 17   14 26 26 21   19 29 28 22   16 24 23
Dewpt         22   14 17 13  8    5 10 13 14   15 20 19 17   12 13 10
PWind dir           N     N       N    NE       E    NE       N    NW
Wind char          GN    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2   B2 B2 B1 B1   B2 B2 OV OV   OV B2 B2 B2   B2 B1 B1
PoP 12hr           20    10       5    10      10    20      30    20
Snow                S                              S  S  C    C  S

$$
IAZ094-312200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
530 AM CST Fri Jan 31 2025

Date             Fri 01/31/25            Sat 02/01/25            Sun 02/02/25
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      48          29          46          34          53
Temp             41 42 44 47 42 36 33 30 31 34 41 45 42 41 40 38 36 39 49 52 45
Dewpt            41 40 38 37 34 32 31 29 29 31 35 37 38 38 38 37 35 36 40 39 38
RH              100 93 79 68 73 85 92 96 92 89 79 73 86 89 92 96 96 89 71 61 76
Wind dir          N  N  N  N  N  N  E SE SE  S  S  S  S  S  S SW SW SW SW  W NW
Wind spd         12 12 16 14  8  4  4  5  9 14 18 18 12 10 10  9  6  6  9  9  5
Wind gust              26 25                   28
Clouds           OV OV OV FW FW SC FW FW B1 B1 B2 B2 OV OV B2 B1 B1 B1 B1 B1 B1
PoP 12hr                    100           0           0           0           0
QPF 12hr                   0.14           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain              D  C
Obvis            PF PF
Wind chill       34 35 37             24 23 24 32 37 35 34 33 32 30
Min chill        33    33    36    29    22    22    33    32    29    30


Date               Mon 02/03/25  Tue 02/04/25  Wed 02/05/25  Thu 02/06/25
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            28    43      21    37      26    39      23    34
Temp          35   30 40 35 27   23 33 33 30   28 36 36 31   25 32 29
Dewpt         33   27 26 22 20   15 19 21 24   26 30 29 27   23 20 16
PWind dir           N    NE      NE    NE       E    NE       N     N
Wind char          LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2   B1 B1 B1 B1   B1 B1 B2 OV   OV B2 B2 B2   B2 B1 SC
PoP 12hr            0     0       0     0      10    30      30    10
Rain                                               S  C  C
Snow                                                          C

$$
IAZ017-312200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
530 AM CST Fri Jan 31 2025

Date             Fri 01/31/25            Sat 02/01/25            Sun 02/02/25
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      45          24          39          29          50
Temp             32 34 42 44 37 29 27 25 26 29 34 37 37 35 34 33 31 34 45 47 37
Dewpt            26 27 27 27 26 25 24 22 22 24 27 29 32 33 34 33 31 32 34 33 30
RH               78 75 55 51 64 85 88 88 85 81 75 72 82 92100100100 92 65 58 75
Wind dir          N  N  N  N  N NE  E SE SE SE SE SE  S  S  S  S SW SW  W NW NW
Wind spd         13 12 16 16  9  6  6 10 13 19 21 21 17 13 10  8  5  9 12 13 10
Wind gust                                      33 33 28
Clouds           SC FW CL CL FW FW SC SC B2 B2 OV B2 OV B2 B1 SC SC SC SC SC B1
PoP 12hr                      0           0          20           5           5
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                            S  S
Wind chill       22 25 34 37 30 22 20 16 14 16 22 26 27 26 26 27 25 27 39    30
Min chill        21    21    30    19    14    13    23    24    24    24    29


Date               Mon 02/03/25  Tue 02/04/25  Wed 02/05/25  Thu 02/06/25
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            19    28       9    26      15    28      12    25
Temp          28   23 26 22 15   12 22 24 20   17 26 25 20   14 21 20
Dewpt         18   12 13 10  6    4  8 12 14   14 19 18 16   12 12  9
PWind dir           N     N       N    NE       E    NE       N    NW
Wind char          GN    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2   B2 B2 B2 B1   B1 B2 B2 OV   B2 B2 B2 B2   B2 B1 B1
PoP 12hr           20    20       5    10      20    20      30    20
Snow                S  S                        S  S  S  C    C  S

$$
IAZ049-312200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
530 AM CST Fri Jan 31 2025

Date             Fri 01/31/25            Sat 02/01/25            Sun 02/02/25
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      49          26          42          31          53
Temp             42 40 44 48 40 32 29 27 27 29 37 40 38 37 36 34 32 36 48 51 42
Dewpt            38 33 32 30 28 27 26 25 25 26 29 32 34 36 36 34 32 35 38 37 34
RH               86 76 62 49 62 81 88 92 92 88 72 73 85 96100100100 96 68 59 73
Wind dir         NE  N  N  N  N NE  E  E SE SE SE SE  S  S  S  S SW SW  W  W NW
Wind spd         10 12 17 17  9  5  5  8 11 16 19 19 16 11  9  6  5  6 10 11  6
Wind gust                                      31 31 26
Clouds           OV OV SC FW FW FW FW FW B1 B2 OV OV OV OV B2 B1 SC SC SC SC B2
PoP 12hr                     20           0          10           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain              S
Wind chill       36 33 36    34 26 23 20 17 17 26 31 30 29 29 28
Min chill        34    31    33    23    17    16    26    28    26    26    36


Date               Mon 02/03/25  Tue 02/04/25  Wed 02/05/25  Thu 02/06/25
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            24    37      15    31      21    33      18    29
Temp          32   26 33 28 20   17 28 28 24   23 30 30 25   20 26 24
Dewpt         26   18 18 16 12    8 12 16 18   19 25 24 21   17 17 12
PWind dir           N     N       N    NE       E    NE       N    NW
Wind char          GN    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2   B2 B2 B2 B1   B1 B2 B2 OV   OV B2 B2 B2   B2 B1 B1
PoP 12hr           10     5       0     5      20    30      30    20
Rain                                                  C
Snow                                            S  S     C    C  S

$$
IAZ086-312200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
530 AM CST Fri Jan 31 2025

Date             Fri 01/31/25            Sat 02/01/25            Sun 02/02/25
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      47          28          45          35          55
Temp             39 41 44 46 42 35 32 30 29 32 38 43 41 40 40 39 36 39 49 53 47
Dewpt            39 40 40 38 34 31 29 28 27 29 33 35 36 38 39 38 36 38 42 42 40
RH              100 96 86 73 73 85 88 92 92 88 82 73 82 92 96 96100 96 77 66 76
Wind dir          N  N  N  N  N  N NE  E SE SE SE SE  S  S  S  S SW SW SW  W  W
Wind spd          9 11 16 16  9  5  5  6  9 14 18 18 13 12 11  9  8  8 10 10  5
Wind gust                                            24 23
Clouds           OV OV OV B1 SC FW FW FW SC B1 B2 B2 OV OV OV B2 B1 SC B1 B1 B1
PoP 12hr                    100           0           5           0           0
QPF 12hr                   0.22           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain              D  D  C
Obvis             F PF
Wind chill       33 34 37 39 36       23 20 22 29 35 33 33 33 32 30
Min chill        33    33    35    26    20    19    31    31    29    29


Date               Mon 02/03/25  Tue 02/04/25  Wed 02/05/25  Thu 02/06/25
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            29    43      21    36      26    39      24    34
Temp          36   31 38 35 26   23 32 33 30   28 35 36 32   26 32 30
Dewpt         33   27 25 24 20   15 18 22 25   26 31 30 29   24 22 18
PWind dir           N     N      NE    NE       E     E       N    NW
Wind char          LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2   B2 B1 B1 B1   B1 B1 B2 OV   OV B2 B2 B2   B2 B1 SC
PoP 12hr            0     0       0     5      20    40      40    20
Rain                                               C  C  C    C
Snow                                            S                S

$$