Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
636 PM CST Sat Dec 16 2017

IAZ060-171000-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
636 PM CST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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                      29          41          28          50          33
Temp                38 34 30 30 31 38 41 35 32 29 29 28 32 45 50 44 41 38 36 34
Dewpt               27 27 27 26 27 31 31 29 27 27 26 25 27 30 31 31 30 30 28 27
RH                  64 75 88 85 85 76 67 78 81 92 88 88 81 55 48 60 65 73 72 75
Wind dir            NE NE NE NE  N NW  N  N NW  W SW SW SW SW SW SW SW  W  W  W
Wind spd             4  4  4  4  4  4  5  3  2  3  4  4  8 11 13 10 10  9  8  5
Wind gust                                                     26
Clouds              FW FW SC B2 OV B2 B2 B1 B2 B1 B1 SC SC FW FW FW FW SC SC SC
PoP 12hr                      0          10           0           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill                                           22 25 39    38 34 32 29 28
Min chill              30    23    25    31    24    20    20    37    32    27


Date           12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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          48      26    48      30    38      16    27      14    28
Temp          45 38 29   27 47 42 37   30 38 31 24   16 26 26 21   14 27 26
Dewpt         24 20 19   18 21 23 25   26 28 23 17   12 12 12 12   10 10 12
PWind dir        NW       N    SE       S     N       N    NW       W    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      LT    GN
Avg clouds    FW FW FW   FW SC SC B1   B2 OV OV OV   B2 B1 SC SC   SC SC B1
PoP 12hr          0       0     0       5    80      80     5       0     0
Rain                                       L  D
Snow                                       L  D  D    C

$$
IAZ039-171000-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
636 PM CST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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          37          24          45          29
Temp                32 29 26 24 29 34 37 31 28 27 25 24 29 40 45 39 37 35 32 30
Dewpt               28 27 25 24 26 30 31 28 26 26 25 24 27 30 31 30 29 29 27 26
RH                  85 92 96100 88 85 79 88 92 96100100 92 67 58 70 72 78 81 85
Wind dir            NE NE NE NE NE NE  N  N NW  W SW SW SW SW SW SW SW  W  W  W
Wind spd             5  5  5  4  5  4  6  2  2  2  3  4  6 11 12 11 11  9  8  8
Wind gust                                                     23
Clouds              SC B1 B1 B2 OV B2 B2 B2 B2 B2 B2 B1 SC SC FW SC SC B1 SC SC
PoP 12hr                      0           5           5           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis                  PF PF PF PF
Wind chill          26 23 19 18 23                   18 22 33 38 32 29 28 25 22
Min chill        34    22    17    18    26    23    17    17    31    27    21


Date           12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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          42      20    40      26    35      14    23      10    23
Temp          40 31 24   21 39 31 29   26 35 28 22   14 23 19 16   10 22 20
Dewpt         24 21 19   17 20 22 23   25 27 23 19   14 14 12 11    8  9 10
PWind dir        NW       N    SE      SE    NE       N    NW       W    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW FW FW   SC B1 B1 B1   B2 OV OV OV   B2 B1 B1 SC   SC SC SC
PoP 12hr          0       0     0      30    80      80     5       5     0
Rain                                          D
Snow                                    C  C  D  D    C

$$
IAZ048-171000-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
636 PM CST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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          39          25          48          31
Temp                34 31 28 27 30 37 38 33 29 27 25 25 30 43 48 42 38 36 33 31
Dewpt               28 26 26 25 26 30 30 28 26 25 25 25 27 31 31 31 29 29 28 26
RH                  78 81 92 92 85 75 73 82 88 92100100 88 62 51 65 70 75 82 81
Wind dir            NE  N NE NE NE  N  N  N NW  W SW SW SW SW SW SW SW  W  W NW
Wind spd             4  5  6  5  5  4  8  3  3  3  4  5  8 12 13 10 10 10  8  8
Wind gust                                                     26
Clouds              FW SC SC B2 OV B2 B2 B1 B1 B1 B1 SC FW FW FW SC FW SC SC SC
PoP 12hr                      0           5           0           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill             25 20 20 24                   18 22 36    36 31 29 26 24
Min chill        37    24    17    19    27    20    18    18    33    27    22


Date           12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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      23    45      28    36      15    26      12    26
Temp          43 34 27   24 44 37 33   28 36 28 23   15 25 23 19   12 24 24
Dewpt         24 20 19   18 22 23 24   25 26 21 16   11 12 12 11    8 10 12
PWind dir        NW       N    SE       S    NW       N    NW      NW    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW FW FW   SC SC SC B1   B2 OV OV OV   B2 B1 SC SC   SC SC B1
PoP 12hr          0       0     0      10    80      80     5       0     0
Rain                                       C  D
Snow                                       C  D  D    C

$$
IAZ004-171000-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
636 PM CST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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          23          44          27
Temp                29 28 25 23 25 31 34 27 25 23 23 25 28 42 43 39 36 33 29 27
Dewpt               26 25 24 23 23 25 25 24 22 23 22 23 26 29 28 27 26 26 25 24
RH                  88 88 96100 92 78 69 88 88100 96 92 92 60 55 62 67 75 85 88
Wind dir             N  N  N  N  N  N  N  N SW SW SW SW SW SW SW SW  W  W  W NW
Wind spd             8  8  9  6  6  6  6  3  2  4  6 10 12 16 16 12 12 11 10  9
Wind gust                                                  26
Clouds              B2 B2 B2 B2 OV B2 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill          21 20 16 15 17 25 28       17 15 15 18 34 35 31 27 25 20 18
Min chill        28    19    14    15    23    16    13    13    30    23    17


Date           12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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          40      20    40      21    25       4    21       5    19
Temp          38 28 22   21 39 35 30   22 23 16 11    5 21 12 12    5 19 11
Dewpt         21 18 16   16 19 21 21   20 17 12  6    3  7  8  8    5  8  8
PWind dir        NW       N    SE      SE     N       N     W      NW    NW
Wind char        GN      LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    FW FW SC   B1 B2 B1 B2   OV OV OV B2   B1 SC B1 SC   SC B1 SC
PoP 12hr          0       0     0      30    60      40     0       5     5
Snow                                    C  L  L  C    S

$$
IAZ035-171000-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
636 PM CST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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          36          25          47          29
Temp                32 30 27 24 27 33 36 30 28 25 25 25 29 43 46 39 37 34 31 29
Dewpt               28 26 25 23 24 27 27 26 24 24 24 24 26 30 30 28 27 26 25 25
RH                  85 85 92 96 88 78 69 85 85 96 96 96 88 60 53 64 67 72 78 85
Wind dir            NE  N NE NE NE  N  N  N NW SW  S SW SW SW SW SW SW  W  W NW
Wind spd             6  6  6  6  6  6  9  3  2  2  4  6 10 14 13 10 11 10  8  6
Wind gust                                                  25 25
Clouds              SC B1 B1 B2 B2 B2 B1 B1 B1 B1 SC SC SC FW FW SC SC SC SC SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis                        PF
Wind chill          26 23 19 17 20 27 29          19 17 20 36    32 29 27 24 22
Min chill        35    22    16    17    24    22    16    15    32    26    21


Date           12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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      21    44      25    32      11    24      10    23
Temp          41 31 24   22 42 38 31   26 30 24 18   11 23 20 14   11 22 19
Dewpt         23 20 18   17 20 22 23   23 22 17 12    8 10 10  9    7  9 10
PWind dir        NW       N    SE      SE     N       N     W      NW    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW FW FW   SC B1 B1 B1   B2 OV OV OV   B2 SC SC SC   SC SC SC
PoP 12hr          0       0     0      30    80      70     5       0     0
Snow                                    C  L  D  L    S

$$
IAZ094-171000-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
636 PM CST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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                      34          45          30          50          33
Temp                39 37 35 35 39 42 45 39 37 33 32 30 34 46 50 44 40 39 35 33
Dewpt               26 27 28 29 33 34 33 32 32 29 29 28 29 31 32 31 31 30 29 28
RH                  59 67 75 78 79 73 62 76 82 85 88 92 82 55 50 60 70 70 78 82
Wind dir             E SE SE  S  S  W NW NW NW  W  W  W SW SW SW SW SW SW  W  W
Wind spd             4  4  3  3  4  5  4  4  4  4  4  5  8 13 14 10 10 11  9  8
Clouds              CL SC B1 B2 OV OV B2 B1 B2 B2 B1 SC SC FW FW FW FW FW FW SC
PoP 12hr                     10          40           5           5           0
QPF 12hr                      0        0.05           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                          C  C
Wind chill                                           24 27       38 33 32 28 27
Min chill              31    29    33    34    29    23    23    37    31    26


Date           12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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      27    49      32    41      17    29      16    30
Temp          48 40 31   28 48 42 38   32 41 31 23   17 28 25 22   16 29 26
Dewpt         28 22 20   19 22 24 26   29 31 25 18   13 12 13 13   11 11 13
PWind dir        NW      NE    SE       S    NE       N    NW       W    NW
Wind char        GN      LT    GN      GN    GN      BZ    GN      GN    GN
Avg clouds    FW FW FW   FW SC SC B1   B2 OV OV OV   B2 SC SC SC   SC SC SC
PoP 12hr          0       0     0      10    70      70     5       0     0
Rain                                       C  L
Snow                                       C  L  L    C

$$
IAZ017-171000-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
636 PM CST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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          23          44          27
Temp                30 28 25 24 26 32 33 28 26 25 23 23 28 39 44 36 35 32 30 27
Dewpt               27 25 24 24 25 28 28 26 25 24 23 23 26 30 30 29 28 26 27 25
RH                  88 88 96100 96 85 82 92 96 96100100 92 70 57 75 75 78 88 92
Wind dir            NE NE NE NE NE  N  N  N  W  W SW SW SW SW SW SW SW  W  W NW
Wind spd             5  6  6  6  5  5  6  4  2  3  5  6 10 14 14 12 11 11  9  9
Wind gust                                                     26
Clouds              B1 B2 B2 B2 OV B2 B2 B2 B2 B2 B1 SC SC SC SC B1 SC B1 SC SC
PoP 12hr                      0           0           0           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis                  PF PF PF PF
Wind chill          24 21 17 16 18 26 27          17 15 19 31 37 28 27 23 21 18
Min chill        31    20    15    15    23    21    15    15    28    22    18


Date           12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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          40      19    39      23    30      10    21       8    19
Temp          38 29 22   20 38 31 30   23 30 23 19   10 21 16 13    8 19 14
Dewpt         23 20 18   16 20 21 22   21 23 19 13    9 10 10  9    7  9  9
PWind dir        NW       N    SE      SE     N       N     W      NW    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW FW FW   B1 B2 B1 B2   OV OV OV OV   B2 B1 B1 SC   SC SC SC
PoP 12hr          0       0     0      40    80      60     5       0     0
Snow                                    C  L  D  L    C

$$
IAZ049-171000-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
636 PM CST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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          38          24          46          29
Temp                33 29 26 24 30 36 38 32 28 27 25 24 29 42 46 40 37 35 32 30
Dewpt               27 26 25 24 26 30 31 28 26 25 25 24 27 30 30 30 29 29 28 26
RH                  78 88 96100 85 79 76 85 92 92100100 92 62 53 67 72 78 85 85
Wind dir            NE NE NE NE NE  N  N  N NW  W SW SW SW SW SW SW SW  W  W  W
Wind spd             5  6  6  5  5  4  8  3  3  3  3  5  8 13 14 11 11 10  8  8
Wind gust                                                     26
Clouds              FW SC SC B2 OV B2 B2 B1 B2 B1 B1 SC SC SC FW SC SC SC SC SC
PoP 12hr                      0           5           5           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis                     PF PF PF
Wind chill             23 18 17 24    32             17 21 35    33 29 27 25 22
Min chill        36    22    16    18    28    22    17    17    32    26    21


Date           12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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      21    42      26    35      15    24      11    24
Temp          42 32 26   22 41 33 29   27 35 27 23   15 24 20 17   11 22 21
Dewpt         24 21 19   17 21 21 23   24 27 23 18   13 13 12 11    9 10 11
PWind dir        NW       N    SE      SE    NE       N    NW       W    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW FW FW   SC SC SC B1   B2 OV OV OV   B2 B1 SC SC   SC SC SC
PoP 12hr          0       0     0      10    80      80     5       0     0
Rain                                       C  D
Snow                                       C  D  D    C

$$
IAZ086-171000-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
636 PM CST Sat Dec 16 2017

Date           12/16/17      Sun 12/17/17            Mon 12/18/17            Tue
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                      30          43          29          49          33
Temp                38 35 31 31 36 41 42 38 35 32 31 29 34 45 49 43 41 38 36 33
Dewpt               27 27 27 28 31 33 34 33 31 30 29 28 30 32 32 32 32 31 30 29
RH                  64 72 85 88 82 73 73 82 85 92 92 96 85 60 52 65 70 76 79 85
Wind dir            SE SE SE SE  S SW NW  W NW  W  W  W SW SW SW SW SW SW  W  W
Wind spd             3  4  4  3  4  6  5  3  4  3  3  4  8 11 13 10 11 11  9  8
Clouds              CL FW SC B2 OV OV B2 B2 B2 B2 B2 B1 SC SC FW FW FW SC FW SC
PoP 12hr                      5          30           5           5           0
QPF 12hr                      0        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                             C  S
Wind chill                                              28 39    37 34 31 29 26
Min chill              30    25    29    34    27    23    23    36    30    26


Date           12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17  Sat 12/23/17
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      25    45      31    40      20    28      16    29
Temp          46 38 30   26 44 38 32   32 40 35 29   20 28 26 22   16 28 25
Dewpt         27 21 20   19 22 23 24   27 30 26 22   17 15 13 13   11 12 12
PWind dir        NW       N    SE      SE    NE       N    NW       W    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW FW FW   FW SC SC SC   B2 OV OV OV   B2 B1 SC SC   SC SC B1
PoP 12hr          0       0     0       5    70      70     5       0     0
Rain                                       C  L  L
Snow                                       C  L  L    C

$$



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