Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
121 AM CST Thu Dec 14 2017

IAZ060-151000-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
121 AM CST Thu Dec 14 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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          35          23          39          27
Temp                      27 25 27 31 35 29 26 26 25 23 26 35 39 34 29 29 28 28
Dewpt                     19 19 19 21 21 22 23 22 23 21 21 22 22 23 22 22 22 22
RH                        71 78 71 66 56 75 88 85 92 92 81 59 50 64 75 75 78 78
Wind dir                   N  N NW NW NW  W  W  W NW  W  W  W  W SW SW SW  S  S
Wind spd                   6  4  4  9  9  3  4  5  6  6  8 11 10  8  6  6  6  6
Wind gust                                                  21
Clouds                    OV OV B2 B2 B2 B1 B1 B2 SC SC B1 B1 SC SC SC B1 SC SC
PoP 12hr                      0           5          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill                20    21 24 28       19 17 15 18 27 32 27 23 23 21 21
Min chill                    18    19    24    19    15    14    26    22    20


Date           12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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      29    41      25    43      29    45      26    44
Temp          44 40 34   29 41 36 29   26 42 39 33   30 44 39 30   27 43 38
Dewpt         25 27 27   26 27 25 23   22 25 25 25   24 24 22 21   20 23 24
PWind dir        SW      SW    NW      NW    SW       W    NW       W    SW
Wind char        LT      LT    LT      LT    GN      GN    GN      GN    GN
Avg clouds    FW SC SC   B1 B1 B1 SC   SC FW FW FW   SC SC SC SC   SC B1 B1
PoP 12hr          0       5    10       0     0       0     0       0     5

$$
IAZ039-151000-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
121 AM CST Thu Dec 14 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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                      17          31          18          35          22
Temp                      19 19 22 28 30 26 23 22 19 18 21 33 34 31 26 25 22 22
Dewpt                     14 14 15 20 21 21 22 20 17 17 18 20 20 22 20 21 20 21
RH                        80 80 74 71 69 81 96 92 92 96 88 58 56 69 78 84 92 96
Wind dir                   N  N NW  W NW  W  W  W NW  W  W  W  W SW SW  S  S  S
Wind spd                   6  3  3  6  9  5  5  6  9  9 10 12 11  6  5  5  5  5
Clouds                    B1 B2 B2 B2 B2 B1 B1 B2 SC SC B2 B2 B2 B2 B2 B2 B1 SC
PoP 12hr                      0           5          10           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                        C  C
Wind chill                10       21 22 19 16 14  8  7 11 23 26 25 19 18 15 15
Min chill                     5    13    18    12     6     6    24    18    14


Date           12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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      25    38      22    40      26    40      24    38
Temp          37 35 29   26 38 32 26   23 39 35 31   27 40 34 28   25 38 31
Dewpt         24 26 27   25 27 26 23   21 25 25 26   24 24 23 22   20 22 23
PWind dir        SE       S     N       W    SW       W    NW      NW    NW
Wind char        LT      LT    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    SC SC B1   B1 B1 B1 SC   SC SC SC SC   SC SC SC SC   SC B1 B2
PoP 12hr          0       5    10      10     5       5     0       0    10

$$
IAZ048-151000-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
121 AM CST Thu Dec 14 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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                      24          34          21          38          25
Temp                      25 24 26 31 34 27 25 25 21 21 24 35 38 32 28 28 25 26
Dewpt                     18 17 17 21 21 23 23 22 20 20 21 23 23 23 23 23 22 22
RH                        74 74 68 66 58 85 92 88 96 96 88 61 54 69 81 81 88 85
Wind dir                   N  N NW NW NW  W  W NW NW  W  W  W  W SW SW  S  S  S
Wind spd                   8  5  5  9  9  4  5  8  8  6 10 12 11  6  6  6  6  5
Clouds                    OV B2 B2 OV B2 B1 B1 B2 SC B1 B1 B1 B1 B1 B1 B1 SC SC
PoP 12hr                      0           5          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill                16 17 20 24 27    18 16 11 12 14 26 31 26 22 22 17 19
Min chill                    15    17    20    16    11    11    25    21    16


Date           12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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          46      27    39      22    42      27    43      24    42
Temp          42 37 32   27 39 33 28   23 41 37 32   28 43 36 29   25 41 34
Dewpt         25 27 27   25 27 25 23   21 26 25 26   24 24 23 20   20 23 24
PWind dir         S      SW    NW      NW    SW       W    NW       W    SW
Wind char        LT      LT    LT      LT    GN      GN    GN      GN    GN
Avg clouds    SC SC SC   B1 B1 SC SC   SC SC FW FW   SC SC SC SC   SC B1 B2
PoP 12hr          0       5    10       5     0       0     0       0     5

$$
IAZ004-151000-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
121 AM CST Thu Dec 14 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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          31          19          34          22
Temp                      21 22 24 29 31 27 24 20 19 19 22 31 34 30 26 26 22 22
Dewpt                     17 17 17 22 22 23 20 18 18 19 20 22 22 23 22 22 21 21
RH                        84 81 74 75 69 85 84 92 96100 92 69 61 75 85 85 96 96
Wind dir                   N  W NW NW NW NW NW NW  W  W  W  W  W SW  S  S  S  S
Wind spd                   8  4  6  9 10  8 13  9  9  9 10 13 11  8  6  6  6  6
Clouds                    B2 B2 OV OV B2 B2 B1 SC B1 B2 B2 B2 B2 B2 B2 B2 SC B1
PoP 12hr                      0          20          20           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                        C  C
Snow                                      S  S
Wind chill                11 16 16 21 22 19 12  9  8  8 11 21 26 23 19 18 14 14
Min chill                    11    15    18     8     7     8    21    17    14


Date           12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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          39      22    33      20    39      24    38      21    36
Temp          36 32 26   22 33 28 24   21 38 33 29   24 38 31 27   21 35 28
Dewpt         25 25 23   21 23 23 21   19 23 25 24   21 23 21 20   18 20 20
PWind dir        SW       N    NW       W    SW       W    NW       W    NW
Wind char        LT      LT    GN      LT    GN      GN    BZ      GN    GN
Avg clouds    B1 B2 B2   B1 B1 B1 SC   FW FW SC SC   SC SC SC SC   SC B1 B2
PoP 12hr          0       5    20       5     5       5     0       0    10
Snow                            S

$$
IAZ035-151000-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
121 AM CST Thu Dec 14 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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                      23          34          21          37          24
Temp                      24 23 25 31 34 28 27 23 21 22 24 34 37 33 28 27 25 24
Dewpt                     17 16 17 21 22 23 24 20 19 19 21 22 23 23 22 22 21 21
RH                        74 74 71 66 61 81 88 88 92 88 88 61 56 66 78 81 84 88
Wind dir                   N  N NW NW NW  W NW NW NW  W  W  W  W SW  S  S  S  S
Wind spd                   6  3  3  9  9  5  6  8  6  6  9 12 11  8  6  6  6  5
Clouds                    B2 B2 B2 OV B2 B2 B1 SC SC B1 B2 B2 B1 B2 B1 B1 SC SC
PoP 12hr                      0           5          20           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                         S
Wind chill                16       23 27    19 14 12 13 14 25 29 26 21 20 17 17
Min chill                    15    18    22    13    11    12    25    20    17


Date           12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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      24    36      22    42      26    41      23    40
Temp          40 36 30   24 36 31 26   23 41 37 31   27 41 34 27   24 39 33
Dewpt         25 26 25   23 25 23 22   20 24 25 25   22 23 22 20   19 22 22
PWind dir        SW       N    NW       W    SW       W    NW       W    SW
Wind char        LT      LT    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC SC B1   B1 B1 SC SC   SC FW FW FW   SC SC SC SC   SC B1 B2
PoP 12hr          0       5    10       5     5       0     0       0    10

$$
IAZ094-151000-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
121 AM CST Thu Dec 14 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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                      26          36          23          41          28
Temp                      29 26 27 33 36 29 28 26 27 23 27 38 40 33 30 30 28 29
Dewpt                     21 21 20 21 21 22 23 22 24 23 22 22 22 22 22 22 22 22
RH                        72 81 74 61 54 75 81 85 88100 81 52 48 63 72 72 78 75
Wind dir                   N  N  N NW NW NW  W  W NW  W  W  W  W SW SW SW  S SW
Wind spd                   8  5  6  9  9  4  4  5  8  8  9 12 12  8  9 10  9 10
Clouds                    OV OV B2 B2 B2 B1 B1 B2 B1 SC SC SC SC SC SC SC FW FW
PoP 12hr                      0           5          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                        C  C
Wind chill                21 19 20 25 29       19 19 14 18 30 33 26 22 22 19 20
Min chill                    19    19    22    17    14    14    25    19    19


Date           12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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          51      31    42      25    45      29    47      27    47
Temp          46 42 36   31 42 36 29   26 44 40 35   30 46 39 31   28 46 39
Dewpt         25 27 27   26 30 25 24   23 26 25 26   24 25 22 21   21 24 27
PWind dir        SW      SW     W      NW    SW       W    NW       W    SW
Wind char        GN      LT    LT      LT    GN      GN    GN      GN    GN
Avg clouds    FW FW SC   B1 B2 B1 SC   SC SC FW SC   SC SC SC SC   SC SC B1
PoP 12hr          0      10    30       5     0       0     0       0     0
Rain                            S
Snow                         C

$$
IAZ017-151000-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
121 AM CST Thu Dec 14 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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                      17          30          18          33          21
Temp                      20 18 21 28 29 24 24 22 18 19 22 31 33 30 26 24 22 21
Dewpt                     14 14 15 20 20 22 23 18 17 18 20 21 21 22 21 21 20 20
RH                        77 84 77 71 69 92 96 84 96 96 92 66 61 72 81 88 92 96
Wind dir                   N NW  W NW NW  W NW NW NW  W  W  W  W SW  S  S  S  S
Wind spd                   6  3  3  9 10  6 10 11 10  9 10 12 11  8  5  5  6  6
Clouds                    B1 B2 B2 OV B2 B2 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1
PoP 12hr                      0          10          20           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                        C  C
Snow                                         S
Wind chill                11       19 20 16 14 10  6  8 11 21 24 22 19 17 14 12
Min chill                     9    13    15     8     6     7    20    16    12


Date           12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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          39      23    34      21    39      25    38      22    36
Temp          36 32 28   23 34 28 25   22 38 32 30   25 38 31 27   23 36 28
Dewpt         24 25 25   23 25 24 22   20 25 25 25   23 24 22 21   19 21 21
PWind dir        SE       S    NW       W    SW       W    NW      NW    NW
Wind char        LT      LT    GN      LT    GN      GN    BZ      GN    GN
Avg clouds    B1 B1 B2   B1 B1 B1 SC   SC SC SC SC   SC SC SC SC   SC B1 B2
PoP 12hr          0       5    20      10    10       5     0       5    10
Snow                            S

$$
IAZ049-151000-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
121 AM CST Thu Dec 14 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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          31          19          36          23
Temp                      23 21 23 28 31 25 23 23 19 19 22 33 36 32 26 28 24 23
Dewpt                     17 16 16 20 20 21 22 20 18 18 20 22 21 22 22 22 21 21
RH                        77 81 74 71 63 84 96 88 96 96 92 63 54 66 85 78 88 92
Wind dir                   N  N NW NW NW  W  W  W NW  W  W  W  W SW SW  S  S  S
Wind spd                   8  4  4  8 10  4  4  6  8  8 10 12 12  8  5  6  5  6
Clouds                    B2 B2 B2 B2 B2 B1 B1 B2 SC SC B1 B2 B1 B1 B1 B1 SC SC
PoP 12hr                      0           5          10           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                        C  C
Wind chill                14 15 17 20 23 19 17 15  9  9 12 24 28 25 19 21 17 16
Min chill                    14    15    18    15     8     9    25    18    15


Date           12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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      26    38      21    41      26    41      24    40
Temp          40 35 30   27 38 31 25   22 40 35 31   27 41 35 29   25 39 33
Dewpt         24 26 26   25 27 25 22   21 25 25 25   23 24 22 21   20 22 24
PWind dir         S      SW    NW      NW    SW       W    NW       W    NW
Wind char        LT      LT    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    SC SC SC   B1 B1 B1 SC   SC SC SC FW   SC SC SC SC   SC B1 B2
PoP 12hr          0       5    10       5     0       0     0       0    10

$$
IAZ086-151000-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
121 AM CST Thu Dec 14 2017

Date           12/13/17      Thu 12/14/17            Fri 12/15/17            Sat
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                      23          33          21          38          27
Temp                      25 23 25 31 33 28 25 24 24 21 25 36 38 33 27 28 27 28
Dewpt                     18 18 18 20 20 19 20 20 21 19 21 22 21 22 22 22 22 22
RH                        74 81 74 63 58 68 81 84 88 92 84 56 50 63 81 78 81 78
Wind dir                   N  N  N NW NW  W  W  W  W  W  W  W  W SW SW SW  S  S
Wind spd                   8  5  5  6  8  4  4  5  9  8  9 12 12  8  8  8  8  9
Wind gust                                                  23
Clouds                    OV OV B2 B2 B2 B1 B1 B1 B1 SC SC B1 B1 SC SC SC SC FW
PoP 12hr                      0           5          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                        C  C
Wind chill                17 16 18 24 26    19 17 14 12 15 27 30 26 20 20 18 19
Min chill                    15    15    19    15    11    11    25    19    18


Date           12/16/17  Sun 12/17/17  Mon 12/18/17  Tue 12/19/17  Wed 12/20/17
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      31    43      25    43      29    45      27    44
Temp          44 39 35   31 43 36 28   27 42 38 34   30 45 38 32   28 43 36
Dewpt         26 27 28   27 31 26 24   23 26 25 27   25 26 24 22   21 24 25
PWind dir         S      SW     W      NW    SW       W    NW       W    SW
Wind char        GN      LT    LT      LT    GN      GN    GN      GN    GN
Avg clouds    FW FW SC   B1 B2 B2 SC   SC SC SC SC   FW SC SC FW   SC SC B1
PoP 12hr          0       5    40       5     0       0     5       0    10
Snow                         C

$$



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