Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
316 AM CST Sat Nov 29 2025

IAZ060-292200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
316 AM CST Sat Nov 29 2025

Date             Sat 11/29/25            Sun 11/30/25            Mon 12/01/25
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                      32          14          21           6          21
Temp             28 29 31 31 28 24 21 18 16 16 20 21 16  9  8  8 10 13 19 21 20
Dewpt            26 28 30 30 25 22 18 15 13 14 16 16 10  8  6  7  8 11 16 18 17
RH               92 96 96 96 88 92 88 88 88 92 84 81 77 96 91 96 91 91 88 88 88
Wind dir         SE  E  E  N  N NW NW NW NW NW NW NW NW NW  N SE SE SE  S  S  S
Wind spd         14 12  9 11 16 20 19 18 16 13 12 10  5  3  2  2  2  3  5  5  4
Wind gust                    27 35 35 32 26 24
Clouds           OV OV OV OV OV OV OV B2 SC B1 SC B1 B2 B2 B2 B2 OV B2 OV OV B2
PoP 12hr                    100          90           0           0          60
QPF 12hr                   0.56        0.04           0           0        0.05
Snow 12hr                     6           1       00-00
Snow              D  D  D  D  D  L                                C  C  L  L
Obvis                           BS BS
Wind chill       16 19 23 22 16  9  6  2  0  3  8 10  7  3             11 13 13
Min chill        13    16    16     5    -1    -1     6     1     7     5    11
Winter Storm      W  W  W  W  W  W  W  W


Date               Tue 12/02/25  Wed 12/03/25  Thu 12/04/25  Fri 12/05/25
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             7    25      17    29      -2    20      11    32
Temp          16    8 22 19 20   24 28 19  8    0 15 15 15   22 30 29
Dewpt         14    8 18 15 20   23 23 16  6    0  9 11 15   21 27 25
PWind dir          SW    SW      SW    NW      NW    SW      SW     W
Wind char          LT    LT      LT    GN      LT    LT      GN    GN
Avg clouds    B2   B1 SC SC B1   B2 B2 B2 B1   SC FW SC SC   B1 B1 B2
PoP 12hr            5     0       5    10       5     0       5    10

$$
IAZ039-292200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
316 AM CST Sat Nov 29 2025

Date             Sat 11/29/25            Sun 11/30/25            Mon 12/01/25
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                      29          16          21           1          19
Temp             25 26 28 28 27 24 23 20 18 18 21 20 13  8  3  3  5 10 17 19 17
Dewpt            23 24 26 26 25 23 21 18 16 16 17 15 10  6  2  2  4  8 13 15 14
RH               92 92 92 92 92 96 92 92 92 92 84 81 87 91 95 95 95 91 84 84 88
Wind dir          E  E  E  E  N  N NW NW NW NW NW NW NW NW NW  W  S  S  S  S  S
Wind spd         14 16 13 13 12 18 20 21 20 18 17 13  9  5  2  2  2  3  5  6  5
Wind gust                       31 35 35 32 29
Clouds           OV OV OV OV OV OV OV OV B1 B2 SC SC SC B1 B2 B2 B2 B2 OV B2 B2
PoP 12hr                    100         100           0           0          30
QPF 12hr                   0.55        0.11           0           0           0
Snow 12hr                     7           2       00-00
Snow              D  D  D  D  D  D  C  S                                C  C
Obvis                              BS BS BS BS
Wind chill       13 13 16 17 16 10  7  4  1  2  7  7  1 -2              8 10  8
Min chill        11    11    15     6     1     0     0    -6    -6     0     6
Winter Storm      W  W  W  W  W  W  W  W


Date               Tue 12/02/25  Wed 12/03/25  Thu 12/04/25  Fri 12/05/25
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             6    22      12    27      -5    16       7    29
Temp          13    8 19 17 15   20 26 16  5   -3 12 11 11   17 26 25
Dewpt         13    8 16 14 15   20 21 13  4   -3  6  7 11   16 22 21
PWind dir          SW    SW       S    NW      NW    SW      SW     W
Wind char          LT    LT      LT    GN      GN    GN      GN    GN
Avg clouds    B2   B2 B1 B1 B2   B2 B2 B2 B1   SC SC SC SC   B2 B2 B2
PoP 12hr           10     0       5    20       5     0      10    10
Snow                                 S  S

$$
IAZ048-292200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
316 AM CST Sat Nov 29 2025

Date             Sat 11/29/25            Sun 11/30/25            Mon 12/01/25
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                      30          14          21           3          20
Temp             26 27 29 29 26 22 20 17 16 16 19 21 14  6  5  5  7 11 18 20 18
Dewpt            24 26 28 28 25 21 18 15 14 15 16 16  9  6  5  5  7 11 15 17 17
RH               92 96 96 96 96 96 92 92 92 96 88 81 80100100100100100 88 88 96
Wind dir          E  E  E NE  N NW NW NW NW NW NW NW NW NW  N SE  S  S  S  S  S
Wind spd         14 13 11 12 16 21 20 19 17 14 13 10  6  3  2  1  1  3  5  5  5
Wind gust                    27 36 35 33 27 26
Clouds           OV OV OV OV OV OV OV OV B1 B1 SC SC B1 B2 B2 OV B2 B2 OV OV B2
PoP 12hr                    100          90           0           0          40
QPF 12hr                   0.55        0.05           0           0        0.02
Snow 12hr                     6           1       00-00
Snow              D  D  D  D  D  L                                S  S  C  C
Obvis                        BS BS BS BS
Wind chill       14 16 19 18 13  7  4  1  0  1  6  9  4                10 12 10
Min chill        12    14    13     4    -2    -2     3    -3     4     2     9
Winter Storm      W  W  W  W  W  W  W  W


Date               Tue 12/02/25  Wed 12/03/25  Thu 12/04/25  Fri 12/05/25
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             5    23      15    28      -5    18       9    31
Temp          14    7 20 17 17   22 27 16  5   -3 14 12 13   20 29 28
Dewpt         14    7 17 15 17   22 23 14  4   -3  9 11 13   20 26 25
PWind dir          SW    SW      SW    NW      NW    SW      SW     W
Wind char          LT    LT      LT    GN      LT    LT      GN    GN
Avg clouds    B2   B1 B1 B1 B1   B2 B2 B2 B1   SC SC SC SC   B2 B2 B2
PoP 12hr            5     0       5    20       5     0       5    10
Snow                                    S

$$
IAZ004-292200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
316 AM CST Sat Nov 29 2025

Date             Sat 11/29/25            Sun 11/30/25            Mon 12/01/25
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                      25          11          18           1          19
Temp             21 22 23 23 20 18 16 15 13 14 18 16  9  5  3  5  7 11 17 19 16
Dewpt            20 20 22 21 18 15 14 12 10 11 13 12  6  4  2  3  4  9 14 16 14
RH               96 92 96 92 92 88 92 88 87 88 80 84 87 95 95 91 87 91 88 88 92
Wind dir          E NE NE  N  N  N NW NW NW NW NW NW NW  W SW  S  S  S  S  S SW
Wind spd         14 14 18 19 20 21 20 19 18 14 13 11  6  3  2  4  5  9 12 12 10
Wind gust                    34 34 33 32 28 26
Clouds           OV OV OV OV OV OV OV OV B1 B1 SC SC B2 B2 B2 OV B2 B2 B2 B2 B1
PoP 12hr                    100          70           0           0          20
QPF 12hr                   0.37        0.03           0           0           0
Snow 12hr                     6           1       00-00
Snow              D  D  D  D  L  C                                      S  S
Obvis                  BS BS BS BS BS BS
Wind chill        8  9  9  8  4  1 -1 -2 -4 -2  3  4 -2 -3    -4 -3 -2  4  6  4
Min chill         8     8     4    -1    -4    -5    -3    -6    -6    -4     4
Winter Storm      W  W  W  W  W  W  W  W


Date               Tue 12/02/25  Wed 12/03/25  Thu 12/04/25  Fri 12/05/25
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             5    23      11    21      -7    18      11    28
Temp          13    6 17 16 16   19 20  9  0   -5 13 14 15   21 26 23
Dewpt         11    6 14 13 16   18 14  6 -1   -5 10 13 15   19 24 22
PWind dir          SW    SW      SW    NW      NW    SW      SW     W
Wind char          GN    LT      GN    GN      GN    GN      GN    GN
Avg clouds    B2   B1 SC B1 B2   B2 B2 B1 B1   SC SC SC B1   B2 B2 B2
PoP 12hr            0     0      10    20       0     0      10    10
Snow                                 S

$$
IAZ035-292200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
316 AM CST Sat Nov 29 2025

Date             Sat 11/29/25            Sun 11/30/25            Mon 12/01/25
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                      27          12          19           1          19
Temp             24 25 26 26 23 20 18 16 14 14 18 19 11  4  3  3  6 11 17 19 17
Dewpt            23 23 25 24 21 18 16 13 11 13 14 14  7  4  3  3  5 10 14 17 14
RH               96 92 96 92 92 92 92 88 88 96 84 80 83100100100 96 96 88 92 88
Wind dir          E  E NE  N  N  N NW NW NW NW NW NW NW NW SW  S  S  S  S  S  S
Wind spd         17 13 12 14 17 18 18 17 14 13 12 10  5  2  2  2  2  4  8  8  5
Wind gust                    31 34 33 31 26 24
Clouds           OV OV OV OV OV OV OV B2 B1 B1 SC SC B1 B2 B2 B2 OV B2 OV B2 B2
PoP 12hr                    100          90           0           0          30
QPF 12hr                   0.46        0.04           0           0           0
Snow 12hr                     6           1       00-00
Snow              D  D  D  D  D  L                                S  S  C  C
Obvis                        BS BS
Wind chill       10 13 15 14  9  5  2  0 -2 -1  5  7  2              3  8 10  9
Min chill        10    11     9     2    -3    -3     0    -4     2     0     8
Winter Storm      W  W  W  W  W  W  W  W


Date               Tue 12/02/25  Wed 12/03/25  Thu 12/04/25  Fri 12/05/25
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             4    23      13    26      -7    18       9    30
Temp          13    6 17 15 17   22 25 12  2   -5 13 13 13   20 28 25
Dewpt         12    6 15 14 17   22 19 10  1   -5  9 11 13   19 25 23
PWind dir          SW    SW      SW    NW      NW    SW      SW     W
Wind char          LT    LT      LT    GN      LT    GN      GN    GN
Avg clouds    B2   B1 SC SC B2   B2 B2 B2 B1   SC SC SC B1   B2 B1 B2
PoP 12hr            0     0       5    20       0     0       5    10
Snow                                 S  S

$$
IAZ094-292200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
316 AM CST Sat Nov 29 2025

Date             Sat 11/29/25            Sun 11/30/25            Mon 12/01/25
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                      33          13          21           9          21
Temp             32 32 33 33 27 23 21 18 15 16 21 21 17 12 11 11 13 15 19 21 20
Dewpt            30 32 33 32 25 20 18 14 13 13 16 16 12 11 10 11 12 14 18 19 19
RH               92100100 96 92 88 88 84 92 88 81 81 80 96 96100 96 96 96 92 96
Wind dir         SE SE SE NW NW NW NW NW NW NW NW NW  N  N NE  E SE SE  S  S SE
Wind spd         13 12  8 12 18 20 19 17 13 12 11  9  4  3  2  2  2  3  5  4  2
Wind gust        24          31 36 34 32 26 24
Clouds           OV OV OV OV OV OV B2 B2 B1 SC SC B1 B2 B2 B2 OV OV OV OV B2 B2
PoP 12hr                    100          40           0           0          60
QPF 12hr                   0.55        0.01           0           0        0.13
Snow 12hr                     2           T       00-00
Rain              S  D  D  S
Snow              D  D  D  L  C  S                                C  C  L  L
Obvis                        BS BS BS
Wind chill       22 23 26 24 14  8  5  3  0  2  9 11 10                12 15
Min chill        17    22    14     4     0    -1     9     5     6     8    11
Winter Storm      W  W  W  W  W  W  W  W


Date               Tue 12/02/25  Wed 12/03/25  Thu 12/04/25  Fri 12/05/25
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             7    25      17    31       0    20      13    32
Temp          16    9 22 20 20   22 30 21 10    2 17 15 16   22 30 29
Dewpt         16    9 19 19 20   22 26 18  9    2 10 12 16   21 28 26
PWind dir          SW    SW       S    NW      NW    SW      SW     W
Wind char          LT    LT      LT    GN      LT    LT      LT    GN
Avg clouds    B2   B1 SC SC B1   B1 B1 B2 B1   SC FW FW SC   B1 B1 B1
PoP 12hr            5     0       0     5       5     0       5    10

$$
IAZ017-292200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
316 AM CST Sat Nov 29 2025

Date             Sat 11/29/25            Sun 11/30/25            Mon 12/01/25
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                      26          13          18          -1          18
Temp             22 23 24 25 23 21 19 17 15 14 17 18 10  4  1  2  5  9 16 18 16
Dewpt            21 22 23 24 21 19 17 15 13 13 14 13  6  3  0  1  3  8 13 14 13
RH               96 96 96 96 92 92 92 92 92 96 88 80 83 95 95 95 91 96 88 84 88
Wind dir          E  E  E NE  N  N NW NW NW NW NW NW NW NW  W SW  S  S  S  S  S
Wind spd         14 14 14 14 16 20 20 20 19 16 14 11  6  4  2  2  2  4  8  8  5
Wind gust                    27 33 34 34 29 27
Clouds           OV OV OV OV OV OV OV OV B2 B1 SC SC SC B1 B2 B2 OV B2 B2 B2 OV
PoP 12hr                    100         100           0           0          20
QPF 12hr                   0.46        0.07           0           0           0
Snow 12hr                     7           1       00-00
Snow              D  D  D  D  D  D  C  S                                S  S
Obvis                           BS BS BS BS
Wind chill        9 10 11 13 10  6  3  0 -2 -2  2  5 -1 -5           1  5  8  7
Min chill         9     8     9     2    -3    -4    -2    -6    -2    -2     5
Winter Storm      W  W  W  W  W  W  W  W


Date               Tue 12/02/25  Wed 12/03/25  Thu 12/04/25  Fri 12/05/25
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             4    20      10    24      -8    16       7    27
Temp          12    6 17 15 14   20 23 12  1   -6 11 10 11   18 25 23
Dewpt         11    6 16 12 14   20 18  9  0   -6  7  9 11   17 22 21
PWind dir          SW    SW      SW    NW      NW    SW      SW     W
Wind char          LT    LT      LT    GN      LT    GN      GN    GN
Avg clouds    B2   B1 B1 B1 B2   B2 B2 B2 B1   SC SC SC B1   B2 B2 B2
PoP 12hr            5     0      10    20       5     0      10    10
Snow                                 S  S

$$
IAZ049-292200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
316 AM CST Sat Nov 29 2025

Date             Sat 11/29/25            Sun 11/30/25            Mon 12/01/25
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                      30          14          21           3          19
Temp             25 26 29 29 27 24 21 18 16 15 19 20 13  7  3  4  6 10 17 19 17
Dewpt            24 25 27 28 26 22 19 16 14 15 17 15  9  5  3  3  5  9 14 16 15
RH               96 96 92 96 96 92 92 92 92100 92 81 84 91100 95 96 96 88 88 92
Wind dir          E  E  E NE  N NW NW NW NW NW NW NW NW NW NW  E  S  S  S  S  S
Wind spd         16 14 13 12 13 19 20 19 17 16 14 12  6  4  2  2  2  2  5  5  4
Wind gust                       33 34 33 27 27 25
Clouds           OV OV OV OV OV OV OV OV B1 B1 SC SC SC B2 B2 OV B2 OV OV B2 B2
PoP 12hr                    100         100           0           0          40
QPF 12hr                   0.54        0.07           0           0        0.02
Snow 12hr                     7           1       00-00
Snow              D  D  D  D  D  D  S  S                                C  C
Obvis                           BS BS BS
Wind chill       12 14 18 19 16 10  5  2  0  0  5  8  3 -2              9 11 10
Min chill        10    12    15     5    -1    -2     2    -5    -3     1     9
Winter Storm      W  W  W  W  W  W  W  W


Date               Tue 12/02/25  Wed 12/03/25  Thu 12/04/25  Fri 12/05/25
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             5    22      12    27      -6    17       7    30
Temp          13    7 19 16 16   21 26 16  4   -4 12 11 11   19 27 25
Dewpt         13    7 17 14 16   21 22 14  3   -4  7  9 11   18 24 22
PWind dir          SW    SW      SW    NW      NW    SW      SW     W
Wind char          LT    LT      LT    GN      LT    GN      GN    GN
Avg clouds    B2   B2 B1 B1 B1   B2 B2 B1 B1   SC SC SC SC   B2 B2 B2
PoP 12hr           10     0       5    20       5     0       5    10
Snow                                    S

$$
IAZ086-292200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
316 AM CST Sat Nov 29 2025

Date             Sat 11/29/25            Sun 11/30/25            Mon 12/01/25
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                      33          16          23           6          21
Temp             29 30 32 33 32 28 24 20 18 18 21 23 18 12  8  8 10 13 19 21 20
Dewpt            27 29 31 33 31 26 22 17 16 17 17 18 14 10  8  8  8 12 16 19 19
RH               92 96 96100 96 92 92 88 92 96 84 81 84 91100100 91 96 88 92 96
Wind dir         SE SE SE  E NW NW NW NW NW NW NW NW NW NW  N NE SE SE  S SE SE
Wind spd         17 16 12  8 10 19 21 20 18 16 14 12  6  5  3  2  2  2  4  4  3
Wind gust        28 26          33 37 35 34 31 25
Clouds           OV OV OV OV OV OV OV B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 OV B2 OV
PoP 12hr                    100          80           5           0          60
QPF 12hr                   0.61        0.04           0           0        0.08
Snow 12hr                     6           1       00-00
Snow              D  D  D  D  D  L                                S  S  L  L  S
Obvis                           BS BS BS
Wind chill       17 19 23 26 24 15  9  4  2  3  8 11  9  3  2          13 15
Min chill        13    17    23     8     2     1     6     1     1     8    12
Winter Storm      W  W  W  W  W  W  W  W


Date               Tue 12/02/25  Wed 12/03/25  Thu 12/04/25  Fri 12/05/25
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             7    25      15    31      -2    19       9    32
Temp          16    9 22 20 18   22 30 22 10    0 15 14 13   21 30 28
Dewpt         15    9 18 16 18   21 25 20  9    0  9 10 13   20 26 25
PWind dir          SW    SW       S     W      NW     W      SW     W
Wind char          LT    LT      LT    GN      GN    LT      GN    GN
Avg clouds    B2   B1 B1 B1 B1   B1 B1 B2 B2   SC FW SC SC   B1 B2 B2
PoP 12hr           20     0       0    10       5     0       5    10
Snow           S

$$