Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
536 PM CST Mon Jan 22 2018

IAZ060-231000-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
536 PM CST Mon Jan 22 2018

Date           01/22/18      Tue 01/23/18            Wed 01/24/18            Thu
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      27          34          23          40          28
Temp             37 34 30 28 28 27 31 34 29 27 25 24 23 26 35 40 34 31 30 29 28
Dewpt            35 30 27 24 23 22 22 23 23 22 22 22 22 23 25 27 26 26 25 26 25
RH               92 85 88 85 81 81 69 64 78 81 88 92 96 88 66 59 72 81 81 88 88
Wind dir         NW  N NW NW NW NW NW NW NW NW NW NW  W  W  W SW  S  S  S  S  S
Wind spd         12 25 27 19 17 14 14 12  6  5  4  4  4  5  5  6  4  5  6  5  4
Wind gust           35 37    28 26
Clouds           OV OV OV OV OV OV B1 B1 B1 B2 B2 B2 B1 SC SC FW SC SC FW FW SC
PoP 12hr                     80           0          10           0           0
QPF 12hr                   0.06           0           0           0           0
Snow 12hr                     1       00-00       00-00
Drizzle
Flurries                                     C  C
Rain              L
Snow              L  D  C
Obvis               BS BS BS
Wind chill       28 21 15 15 16 15 20 25 22 21       17 20 29       25 23 23
Min chill        27    15    15    14    21    19    17    17    29    23    22
Winter Weath      Y  Y


Date           01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18  Mon 01/29/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          48      36    52      30    41      22    36      19    39
Temp          44 41 38   37 51 48 36   31 41 35 27   23 35 31 23   21 38 34
Dewpt         29 30 29   29 35 34 31   26 25 23 21   17 17 18 15   13 17 19
PWind dir         S       S    SW       W     W       W    NW       N    SW
Wind char        LT      GN    BZ      GN    GN      GN    GN      LT    LT
Avg clouds    FW FW FW   FW FW SC SC   SC SC SC SC   SC SC SC FW   FW SC SC
PoP 12hr          0       0     5       5     5       0     0       0     0

$$
IAZ039-231000-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
536 PM CST Mon Jan 22 2018

Date           01/22/18      Tue 01/23/18            Wed 01/24/18            Thu
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      25          30          18          33          22
Temp             37 35 32 29 27 25 29 29 24 22 21 21 18 22 29 33 30 27 26 24 22
Dewpt            35 33 29 25 22 20 21 22 20 19 19 20 18 20 22 24 24 25 24 24 22
RH               92 92 88 85 81 81 72 75 84 88 92 96100 92 75 69 78 92 92100100
Wind dir         NE  N  N NW  N NW NW NW NW NW NW NW  W  W  W  W SW  S  S  S SE
Wind spd         13 16 23 23 18 17 14 13  9  6  4  4  3  4  4  6  4  4  5  5  5
Wind gust              33 33 29 28
Clouds           OV OV OV OV OV OV B2 B1 B1 B2 B2 B2 B2 B1 SC SC B1 B1 B1 SC SC
PoP 12hr                     80           5          10           0           0
QPF 12hr                   0.09           0           0           0           0
Snow 12hr                     1       00-00       00-00
Flurries                                        C
Rain              C  C
Snow              S  D  L  C
Obvis                  BS BS
Wind chill       28 25 20 15 14 12 17 18 14 14 14 14 12 15    27    21 18 17 15
Min chill        27    19    14    11    12    10    10    10    24    17    13


Date           01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18  Mon 01/29/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          41      29    47      28    38      18    29      14    33
Temp          37 35 32   30 46 43 34   28 38 32 24   18 29 25 19   15 31 30
Dewpt         29 30 29   28 34 34 31   26 26 24 20   15 16 15 13   11 15 17
PWind dir        SE       S     S       W     W      NW     N       N    SE
Wind char        LT      GN    BZ      GN    GN      GN    GN      LT    GN
Avg clouds    SC FW FW   FW FW SC B1   SC SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr          0       0     5      10     5       5     5       0     0

$$
IAZ048-231000-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
536 PM CST Mon Jan 22 2018

Date           01/22/18      Tue 01/23/18            Wed 01/24/18            Thu
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      25          31          21          37          24
Temp             36 34 29 27 27 25 29 31 26 25 24 23 21 23 32 37 31 29 28 26 24
Dewpt            34 31 26 24 22 21 22 23 22 22 22 22 20 22 24 27 26 27 25 25 24
RH               92 89 88 88 81 84 75 72 85 88 92 96 96 96 72 67 81 92 88 96100
Wind dir          N  N NW NW NW NW NW NW NW NW NW  W  W  W  W SW  S  S  S  S  S
Wind spd         19 25 27 24 18 16 13 12  9  6  4  4  5  5  5  6  4  5  6  5  5
Wind gust           36 37    31 26
Clouds           OV OV OV OV OV OV B1 B2 B1 B2 B2 B2 B1 B1 SC SC SC SC SC FW SC
PoP 12hr                     90           0          10           0           0
QPF 12hr                   0.08           0           0           0           0
Snow 12hr                     1       00-00       00-00
Drizzle
Flurries                                     C  C
Frzg rain            S
Rain              L
Snow              C  D  C
Obvis               BS BS BS
Wind chill       25 21 14 13 14 12 18 21 17 17 18 17 14 16 26       23 20 19 17
Min chill        24    14    12    11    16    15    13    13    25    18    17
Winter Weath      Y  Y


Date           01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18  Mon 01/29/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          44      32    49      28    40      20    33      17    37
Temp          40 38 35   33 48 44 34   28 40 33 26   20 32 29 22   18 36 32
Dewpt         29 30 30   28 35 34 30   25 26 24 21   16 17 17 14   12 17 19
PWind dir         S       S    SW       W     W      NW    NW       N    SW
Wind char        LT      GN    BZ      GN    GN      GN    GN      LT    GN
Avg clouds    SC FW FW   FW FW SC SC   SC SC SC SC   SC SC SC SC   FW SC SC
PoP 12hr          0       0     5       5     5       5     0       0     0

$$
IAZ004-231000-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
536 PM CST Mon Jan 22 2018

Date           01/22/18      Tue 01/23/18            Wed 01/24/18            Thu
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      19          23          13          28          16
Temp             28 27 25 23 20 19 21 23 19 20 17 15 13 15 23 28 23 21 18 17 16
Dewpt            26 24 22 19 17 16 20 21 19 19 17 15 13 15 22 25 22 21 18 17 16
RH               92 88 88 84 88 88 96 92100 96100100100100 96 88 96100100100100
Wind dir          N  N  N NW NW NW NW NW  W  W  W  W  W  W SW SW  S  S  S  S  S
Wind spd         29 28 23 20 18 13 11 10  6  5  5  5  5  4  6  8  6  8  6  5  5
Wind gust        41 40 33
Clouds           OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B1 SC B1 B1 B1 B2 B1 SC SC B1
PoP 12hr                    100           5           5           0           0
QPF 12hr                   0.11           0           0           0           0
Snow 12hr                     2       00-00       00-00
Snow              D  D  S
Obvis            BS BS BS BS
Wind chill       12 11 10  8  5  5  9 12 10 12  9  6  4  8 15 20 15 11  9  9  7
Min chill        12    10     4     3     9     7     4     4    14     8     6
Blizzard          W  W


Date           01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18  Mon 01/29/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          33      27    37      23    31      11    23       9    30
Temp          29 29 28   28 37 34 29   23 31 26 18   11 22 21 14   10 27 27
Dewpt         27 28 28   27 32 30 26   21 24 21 13    9 13 13 10    7 17 19
PWind dir         S       S    SW       W     W      NW     N       S     S
Wind char        GN      GN    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC FW   SC SC SC B1   SC SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr          0       0     5       5     5       5     0       0     5

$$
IAZ035-231000-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
536 PM CST Mon Jan 22 2018

Date           01/22/18      Tue 01/23/18            Wed 01/24/18            Thu
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      22          28          18          33          21
Temp             32 29 27 25 23 22 26 28 23 22 21 20 18 20 28 33 29 25 24 22 21
Dewpt            30 26 23 22 20 19 21 22 20 20 20 19 18 19 24 26 25 25 23 22 21
RH               92 88 85 88 88 88 81 78 88 92 96 96100 96 85 75 85100 96100100
Wind dir          N  N  N  N  N NW NW NW NW  W  W  W  W  W  W SW  S  S  S  S  S
Wind spd         25 29 26 20 18 14 11 11  6  5  4  4  4  5  6  6  6  6  6  5  5
Wind gust           41 36    28
Clouds           OV OV OV OV OV OV B1 B2 B2 B2 B2 B1 B1 B1 SC SC B1 SC SC SC SC
PoP 12hr                     90           0          10           0           0
QPF 12hr                   0.08           0           0           0           0
Snow 12hr                     1       00-00       00-00
Flurries                                     C
Frzg rain         C
Rain
Snow              D  D  C
Obvis            BS BS BS BS
Wind chill       19 14 12 11  9  9 15 18 15 15 15 13 11 13 21 27 22 17 16 15 13
Min chill        17    10     9     7    14    12    10    10    21    16    13
Winter Weath      Y  Y


Date           01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18  Mon 01/29/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          40      31    44      26    35      16    29      14    34
Temp          36 37 33   32 43 40 32   26 35 30 22   16 28 25 19   15 32 31
Dewpt         29 29 29   27 34 32 28   22 25 23 17   13 16 16 12   10 18 19
PWind dir         S       S    SW       W     W      NW     N      SE     S
Wind char        LT      GN    BZ      GN    GN      GN    GN      LT    GN
Avg clouds    SC FW FW   FW SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr          0       0     5       5     5       5     0       0     0

$$
IAZ094-231000-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
536 PM CST Mon Jan 22 2018

Date           01/22/18      Tue 01/23/18            Wed 01/24/18            Thu
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      27          36          24          42          29
Temp             36 33 32 31 29 27 33 36 30 29 26 26 24 28 37 42 35 33 31 31 29
Dewpt            34 30 27 25 23 23 23 24 24 23 23 24 23 24 26 28 26 27 26 26 25
RH               92 89 81 78 78 85 66 61 78 78 88 92 96 85 64 57 69 78 81 81 85
Wind dir          N NW NW NW NW NW NW NW  W NW  W  W  W NW  W SW  S  S  S  S  S
Wind spd         23 24 25 20 18 16 13 12  8  6  5  5  5  6  8  8  5  8  9  8  8
Wind gust           35 36    31 28
Clouds           OV OV OV OV OV B2 B1 SC SC B2 B1 B1 SC SC SC FW SC FW FW FW FW
PoP 12hr                     60           0          10           0           0
QPF 12hr                   0.04           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                     C  C
Rain              L  C
Snow                 C  S
Obvis               BS BS BS
Wind chill       25 21 19 18 16 15 24 28 22 22 19 19 17 22 31       26 23 23 21
Min chill        24    18    15    14    22    19    17    17    29    22    21


Date           01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18  Mon 01/29/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          50      37    52      31    43      22    38      20    40
Temp          45 43 40   38 51 48 36   31 43 37 27   23 37 32 24   22 38 36
Dewpt         28 30 28   30 35 34 31   27 26 24 21   18 18 19 17   15 18 21
PWind dir         S       S    SW       W     W       W     W       N    SE
Wind char        GN      GN    BZ      GN    GN      GN    GN      LT    GN
Avg clouds    FW FW FW   FW FW SC SC   SC SC SC SC   SC SC FW FW   FW SC SC
PoP 12hr          0       0     5      10     5       0     0       0     0

$$
IAZ017-231000-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
536 PM CST Mon Jan 22 2018

Date           01/22/18      Tue 01/23/18            Wed 01/24/18            Thu
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      21          25          15          30          17
Temp             32 30 25 24 23 21 24 25 19 19 19 17 15 19 27 30 25 22 22 18 18
Dewpt            31 28 24 22 19 18 19 20 18 18 18 17 15 19 22 24 23 22 21 18 18
RH               96 92 96 92 84 88 81 81 96 96 96100100100 81 78 92100 96100100
Wind dir          N  N  N  N  N NW NW NW NW NW  W  W  W  W  W SW  S  S  S  S SE
Wind spd         23 24 27 23 18 16 13 12  8  5  4  4  4  5  4  5  4  5  6  5  5
Wind gust           35 37    31
Clouds           OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B2 B1 SC SC SC
PoP 12hr                     90           0           5           0           0
QPF 12hr                   0.10           0           0           0           0
Snow 12hr                     1       00-00       00-00
Frzg rain         D
Rain
Snow              C  D  L  S
Obvis               BS BS BS
Wind chill       19 16  9  9  9  7 12 14  9 11 12 10  8 11 21 24    15 13 10 10
Min chill        19     9     8     6     8     8     8     7    18    12     9
Winter Weath      Y  Y


Date           01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18  Mon 01/29/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          37      27    43      24    34      13    24      10    31
Temp          33 31 32   28 42 39 31   24 34 28 21   13 24 19 15   11 29 27
Dewpt         28 28 29   27 33 32 28   23 24 22 16   10 13 13 11    8 16 17
PWind dir        SE       S    SW       W     W      NW     N       N    SE
Wind char        LT      GN    BZ      GN    GN      GN    GN      LT    GN
Avg clouds    SC SC FW   FW SC SC B1   SC SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr          0       0     5       5     5       5     5       0    10

$$
IAZ049-231000-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
536 PM CST Mon Jan 22 2018

Date           01/22/18      Tue 01/23/18            Wed 01/24/18            Thu
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      25          31          19          35          23
Temp             37 34 31 28 28 25 29 30 24 22 22 21 19 23 31 35 30 27 26 25 23
Dewpt            35 33 29 25 23 21 21 22 21 20 20 21 19 21 23 25 24 25 25 25 23
RH               92 96 92 88 81 84 72 72 88 92 92100100 92 72 66 78 92 96100100
Wind dir          N  N NW NW NW NW NW NW NW NW NW NW  W  W  W  W  S  S  S  S  S
Wind spd         10 18 27 25 18 17 16 13  9  6  4  4  4  5  5  6  4  5  6  5  5
Wind gust              37 35 29 27
Clouds           OV OV OV OV OV OV B1 B1 B1 B2 B2 B2 B1 B1 SC SC B1 SC SC FW SC
PoP 12hr                     80           0          10           0           0
QPF 12hr                   0.09           0           0           0           0
Snow 12hr                     1       00-00       00-00
Flurries                                        C
Rain              C  C
Snow              S  D  L  S
Obvis               BS BS BS
Wind chill       29 23 17 13 15 12 18 19 15 14 16 15 12 16 25 29    20 18 18 16
Min chill        28    17    12    10    14    11    12    12    24    16    15


Date           01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18  Mon 01/29/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          43      31    48      27    39      19    31      15    35
Temp          39 37 35   32 47 43 34   27 39 31 25   19 31 25 20   16 33 30
Dewpt         29 30 29   28 34 34 31   26 26 24 21   16 16 16 14   12 15 17
PWind dir         S       S    SW       W     W      NW    NW       N    SE
Wind char        LT      GN    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    SC FW FW   FW FW SC B1   SC SC SC SC   SC SC SC SC   FW SC SC
PoP 12hr          0       0     5       5     5       5     5       0     0

$$
IAZ086-231000-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
536 PM CST Mon Jan 22 2018

Date           01/22/18      Tue 01/23/18            Wed 01/24/18            Thu
CST 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      28          35          23          39          28
Temp             41 39 36 32 30 28 33 35 30 26 24 24 23 27 34 39 34 31 29 29 28
Dewpt            35 35 32 28 25 23 23 24 23 23 22 22 22 23 24 26 25 26 26 26 26
RH               79 85 85 85 81 81 66 64 75 88 92 92 96 85 66 59 69 81 88 88 92
Wind dir          S NW NW NW NW NW NW NW NW NW NW NW  W  W  W  W SW  S  S  S  S
Wind spd          8 10 20 21 18 18 16 14  9  6  5  5  5  6  6  8  4  5  6  8  6
Wind gust                    31 29
Clouds           OV OV OV OV OV OV B2 SC SC B1 B1 B1 B1 SC SC FW SC SC SC FW SC
PoP 12hr                     40           5          10           0           0
QPF 12hr                   0.03           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                        C  C
Rain              C  S  C
Snow                    C  S
Obvis                     BS
Wind chill          32 25 19 18 15 22 25 21 18 17 17 16 20 28       25 22 22 21
Min chill        35    25    17    15    20    17    16    16    27    22    20


Date           01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18  Mon 01/29/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          49      36    53      32    43      23    37      20    38
Temp          44 41 38   37 52 50 43   32 43 38 28   24 36 33 25   21 37 34
Dewpt         29 30 29   30 35 35 34   29 27 25 22   19 18 19 16   15 17 18
PWind dir         S       S    SW       W     W       W     W       N    SW
Wind char        LT      GN    BZ      GN    GN      GN    GN      LT    GN
Avg clouds    FW FW FW   FW FW SC B1   SC SC SC SC   SC SC SC FW   FW FW SC
PoP 12hr          0       0    10      10     5       5     0       0     0

$$



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