Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
336 AM CST Sat Dec 16 2017

IAZ060-162200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
336 AM CST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
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                      55          29          41          28          50
Temp             32 36 49 55 44 37 32 30 29 32 39 40 35 32 29 29 28 31 45 50 44
Dewpt            24 25 27 28 28 28 27 26 26 28 30 30 28 27 26 26 26 28 30 30 30
RH               72 64 42 35 53 70 81 85 88 85 70 67 75 81 88 88 92 88 55 46 57
Wind dir         SW SW SW SW  E  E NE NE NE  N NW NW NW NW  W SW SW SW SW SW SW
Wind spd          6  5  5  4  3  3  2  3  3  3  3  5  3  3  3  4  4  6 11 12 10
Wind gust                                                                 25
Clouds           FW FW FW SC FW FW SC SC B1 B2 B2 B1 B2 B2 B1 B1 SC FW SC FW SC
PoP 12hr                      0           5          10           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       26                                                 24 39    38
Min chill        23    26          29    25    25    32    25    22    22    36


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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            32    48      27    47      29    37      17    28
Temp          38   32 46 38 28   27 40 36 33   29 35 31 23   18 24 22
Dewpt         29   26 23 20 19   19 22 25 28   28 25 21 15   11 11 12
PWind dir           W    NW       N    SE       S    NE       N    NW
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC   SC FW FW FW   FW SC SC B1   B1 B2 OV OV   B2 SC SC
PoP 12hr            0     0       0     0      10    60      60    10
Rain                                               C  L
Snow                                               C  L  L    C

$$
IAZ039-162200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
336 AM CST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
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          37          24          43
Temp             27 30 41 44 35 29 26 25 24 28 35 37 31 27 26 24 24 28 38 43 38
Dewpt            25 25 28 29 28 26 26 25 24 27 29 29 28 26 26 24 24 27 29 31 29
RH               92 81 59 55 75 88100100100 96 78 72 88 96100100100 96 70 62 70
Wind dir          S  S  S  E NE NE NE NE NE NE NE  N  N NW NW  W SW SW SW SW SW
Wind spd          4  3  2  3  5  4  4  5  4  4  3  4  3  2  2  3  4  6 11 12 11
Wind gust                                                                 23
Clouds           SC SC SC SC SC FW SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 SC SC FW SC
PoP 12hr                      0           0           5           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill                            18 18                      18 20 31 36 31
Min chill        20    22    29    20    17    18    26    22    18    17    30


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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    42      21    40      25    35      15    24
Temp          34   29 41 32 24   21 34 30 28   25 35 30 23   18 22 17
Dewpt         29   27 23 21 19   18 20 23 25   25 26 21 16   12 12 12
PWind dir           W    NW      NW    SE      SE    NE       N    NW
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC   SC FW FW FW   SC B1 B1 B2   B2 OV OV OV   B2 B1 SC
PoP 12hr            0     0       0     0      30    60      60    20
Rain                                               C  L
Snow                                            C  C  L  L    C  S

$$
IAZ048-162200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
336 AM CST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
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          24          39          25          47
Temp             28 33 45 48 37 31 26 25 24 27 37 38 32 29 26 25 25 29 42 47 39
Dewpt            24 25 28 29 28 26 26 25 24 27 29 29 27 27 25 25 25 27 30 31 30
RH               85 72 51 47 70 81100100100100 72 70 81 92 96100100 92 62 53 70
Wind dir         SW SW  W  W NE NE NE NE NE  N  N  N  N NW  W SW SW SW SW SW SW
Wind spd          5  4  5  3  4  3  4  4  4  4  4  5  4  3  3  3  4  8 12 13 10
Wind gust                                                                 25
Clouds           FW FW FW FW FW FW SC SC B1 B2 B2 B1 B2 B1 B1 B1 SC SC SC FW SC
PoP 12hr                      0           0           5           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill                            19 18                      18 20 34    32
Min chill        20    22    32    20    17    17    25    19    17    16    32


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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    46      24    45      26    35      15    26
Temp          34   29 44 34 25   24 39 33 30   26 34 29 21   16 23 19
Dewpt         28   26 23 20 20   19 22 25 27   26 25 20 14   10 11 12
PWind dir           W    NW       N    SE       S    NE       N    NW
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC   SC FW FW FW   SC SC SC B1   B2 OV OV OV   B2 SC SC
PoP 12hr            0     0       0     0      20    60      60    10
Rain                                               C  L
Snow                                            S  C  L  L    C

$$
IAZ004-162200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
336 AM CST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
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          24          34          22          42
Temp             27 29 41 42 34 29 26 26 24 25 31 34 28 25 22 22 22 26 38 42 35
Dewpt            26 25 27 28 27 26 25 24 22 24 25 25 24 23 22 22 22 25 28 28 27
RH               96 85 57 57 75 88 96 92 92 96 78 69 85 92100100100 96 67 57 72
Wind dir          W  W  N  N  N  N  N  N  N  N  N  N  N SW SW SW SW SW SW SW  W
Wind spd          5  3  6  9  8  8  8  9  8  8  6  6  4  3  4  6  9 12 16 16 13
Wind gust                                                              26
Clouds           SC SC B1 B2 B2 B2 B1 B1 B2 B2 B2 B2 B1 B1 SC SC SC SC SC SC B1
PoP 12hr                      0           0           5           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       20       36 27 21 18 17 15 16 24 28 22    16 13 12 15 29 34 26
Min chill        20    22    26    18    15    15    20    15    11    11    26


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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            26    39      20    40      20    25       9    22
Temp          30   26 38 28 20   20 35 32 28   22 25 20 14   10 19 16
Dewpt         26   23 20 18 16   16 21 23 22   19 16 12  7    5  9 11
PWind dir           W    NW       W    SE      SE     N       N     W
Wind char          GN    GN      LT    GN      GN    BZ      GN    GN
Avg clouds    SC   SC FW FW FW   B1 B1 B1 B2   B2 OV OV B2   B1 SC B1
PoP 12hr            5     0       0     5      30    60      40     5
Snow                                            C  L  L  C    S

$$
IAZ035-162200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
336 AM CST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
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          25          36          23          46
Temp             26 30 43 46 37 31 27 26 25 27 33 36 29 27 24 23 23 27 42 45 39
Dewpt            24 25 28 29 28 26 25 25 24 25 27 27 26 25 24 23 23 26 29 29 28
RH               92 81 55 51 70 81 92 96 96 92 78 69 88 92100100100 96 60 53 64
Wind dir         SW SW NW  N NE NE NE NE NE  N  N  N  N NW SW SW SW SW SW SW SW
Wind spd          5  4  5  5  5  5  5  6  5  6  5  6  3  2  3  4  5 10 14 13 11
Clouds           SC FW SC SC SC SC SC B1 B1 B2 B2 B1 B2 B2 B1 B1 SC SC SC SC SC
PoP 12hr                      0           0           5           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       20                21 18 18 19    30          17 16 18 34 39 32
Min chill        18    20    31    19    17    17    25    18    16    14    31


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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    44      22    44      24    32      12    24
Temp          33   28 41 32 23   22 39 35 31   25 32 26 18   13 20 18
Dewpt         27   24 22 19 18   17 21 23 24   23 21 17 11    8  9 11
PWind dir           W    NW       W    SE      SE     N       N     W
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC   SC FW FW FW   SC SC B1 B1   B2 OV OV B2   B1 SC SC
PoP 12hr            0     0       0     0      30    70      50     5
Snow                                            C  C  L  C    C

$$
IAZ094-162200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
336 AM CST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
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                      54          32          44          30          49
Temp             31 35 49 54 44 37 33 32 32 34 43 44 38 35 33 31 30 33 44 49 42
Dewpt            24 26 28 28 29 28 28 29 29 31 34 34 32 30 29 28 28 28 31 31 31
RH               75 69 44 36 55 70 82 88 88 89 70 68 79 82 85 88 92 82 60 50 65
Wind dir         SW SW SW SW  S  S  S  S  S SW SW  W NW NW  W  W SW SW SW SW SW
Wind spd          9  9 11  8  4  4  6  4  5  5  6  5  5  4  4  4  5  8 12 14 10
Clouds           CL FW FW CL FW FW FW B1 B2 OV B2 B1 B1 B2 B2 B1 B1 SC FW FW FW
PoP 12hr                      0          10          40           5           5
QPF 12hr                      0           0        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                                         C
Sleet                                     C
Snow                                      S  C
Wind chill       23 28             27    26                      24 25 38    36
Min chill        21    22    38    26    26    26    32    26    23    22    36


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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            32    49      27    49      30    39      18    29
Temp          37   32 47 39 30   27 42 37 35   30 38 31 23   19 26 21
Dewpt         30   27 24 22 20   19 22 26 29   29 27 22 16   12 12 13
PWind dir           W    NW      NE    SE       S    NE       N    NW
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    FW   FW FW FW FW   FW FW SC SC   B1 B2 OV B2   B2 SC SC
PoP 12hr            0     0       0     0      10    60      70     5
Rain                                               C  L
Snow                                               C  L  L    S

$$
IAZ017-162200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
336 AM CST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
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          24          34          23          42
Temp             27 30 39 42 33 29 26 25 24 26 32 33 28 27 24 23 23 25 37 42 36
Dewpt            26 25 28 29 27 26 25 25 23 26 27 27 26 25 24 23 23 25 29 29 28
RH               96 81 64 60 78 88 96100 96100 81 78 92 92100100100100 72 60 72
Wind dir         SW SW NE NE NE NE NE NE NE NE  N  N  N  W  W SW  S SW SW SW SW
Wind spd          5  3  3  5  5  5  5  6  6  6  5  5  4  3  3  4  5  9 14 13 12
Wind gust                                                                 24
Clouds           FW SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC B1
PoP 12hr                      0           0           5           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       21             23 19 17 16 19 26             17 16 16 28 35 27
Min chill        19    22    26    18    16    16    22    18    15    14    26


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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            26    40      20    39      22    30      12    22
Temp          32   26 39 29 22   20 34 29 27   22 30 26 18   15 20 15
Dewpt         27   25 22 20 17   17 19 22 23   22 22 17 11    8  9 10
PWind dir           W    NW       W    SE      SE     N       N    NW
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC   SC FW FW FW   SC B1 B1 B2   B2 OV OV OV   B2 B1 B1
PoP 12hr            0     0       0     0      30    70      50    10
Snow                                            C  C  L  C    C

$$
IAZ049-162200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
336 AM CST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
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          24          38          24          45
Temp             28 32 43 46 36 30 26 25 24 29 37 37 31 28 26 25 24 28 39 45 39
Dewpt            24 25 28 29 27 26 25 25 24 27 29 29 27 26 25 25 24 27 29 30 29
RH               85 75 55 51 69 85 96100100 92 72 72 85 92 96100100 96 67 55 67
Wind dir         SW SW SW SW NE NE NE NE NE NE  N  N  N NW  W SW SW SW SW SW SW
Wind spd          5  4  5  3  4  4  4  5  5  4  3  5  3  3  3  3  4  8 12 14 11
Wind gust                                                                 26
Clouds           FW FW FW FW FW FW SC SC B1 B2 B2 B1 B2 B2 B1 B2 SC SC SC FW SC
PoP 12hr                      0           0           5           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       22                   18 18                      18 20 31 38 32
Min chill        20    22    31    20    17    18    28    21    18    16    31


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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    43      21    42      25    35      15    25
Temp          33   27 42 32 25   21 37 31 29   25 34 30 23   18 22 18
Dewpt         28   26 23 20 19   18 21 23 25   25 25 21 16   11 11 12
PWind dir           W    NW      NW    SE      SE    NE       N    NW
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC   SC FW FW FW   FW SC B1 B1   B2 OV OV OV   B2 B1 SC
PoP 12hr            0     0       0     0      20    60      60    10
Rain                                                  L
Snow                                            S  C  L  L    C

$$
IAZ086-162200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
336 AM CST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
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                      52          30          43          29          49
Temp             32 37 47 52 41 35 31 30 30 34 43 43 37 33 31 30 29 33 45 49 43
Dewpt            25 26 29 30 29 29 28 28 28 31 33 35 32 30 29 29 28 29 32 32 31
RH               75 64 49 43 62 78 88 92 92 89 67 73 82 89 92 96 96 85 60 52 62
Wind dir         SW SW SW SW  S  S  S  S  S SW SW  W NW NW  W  W  W SW SW SW SW
Wind spd         10  9 10  6  4  3  4  4  4  4  5  5  4  4  5  4  5  8 11 13 10
Clouds           FW FW FW FW FW FW SC B1 B2 OV B2 B1 B2 B2 B2 B2 B1 SC SC FW FW
PoP 12hr                      0          10          40           5           5
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                                         C  S  S
Snow                                      C  C
Wind chill       24 30                                     25    23 26 39    37
Min chill        21    24    37    25    24    25    32    24    22    21    36


Date               Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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            32    48      26    46      29    40      19    29
Temp          38   32 46 38 28   26 40 34 32   29 38 34 26   21 25 22
Dewpt         31   28 24 21 20   20 22 24 27   29 28 24 20   15 14 13
PWind dir           W    NW       N    SE      SE    NE       N    NW
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC   SC FW FW FW   FW SC SC SC   B1 B2 OV OV   B2 B1 SC
PoP 12hr            0     0       0     0      10    60      70     5
Rain                                               C  L
Snow                                               C     L    C

$$



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