Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
651 PM CST Fri Dec 15 2017

IAZ060-161000-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
651 PM CST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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          56          30          43          28
Temp                36 35 32 30 34 50 55 44 37 32 30 30 33 40 43 36 33 31 29 28
Dewpt               24 24 24 23 24 28 29 28 28 27 26 27 29 31 31 29 28 27 27 27
RH                  61 64 72 75 66 42 37 53 70 81 85 88 85 70 62 75 82 85 92 96
Wind dir            SW SW SW SW SW SW SW  E  E  E NE NE NW NW NW  N  N NW  W SW
Wind spd             8  8  8  6  6  6  5  4  2  2  3  3  3  4  4  4  3  3  4  4
Clouds              SC SC FW FW FW FW SC FW FW SC SC B2 OV OV B2 B2 B2 B1 B2 B1
PoP 12hr                      0           0           5          20           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                                                     S
Snow                                                  S  S
Wind chill          29 28 25 23 28
Min chill        34    27    22    23          28    25    26    32    25    23


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          50      31    47      28    50      35    42      16    28
Temp          45 46 41   31 46 40 30   30 48 46 39   35 42 32 21   16 26 26
Dewpt         31 30 28   25 23 20 19   20 27 31 34   33 31 23 15   10  8  9
PWind dir        SW       W    NW       W     S       S    NW      NW    NW
Wind char        GN      GN    GN      LT    GN      GN    GN      BZ    GN
Avg clouds    SC SC SC   FW FW FW FW   FW SC SC B1   B1 B2 OV OV   B2 B1 SC
PoP 12hr          5       0     0       0     0       0    50      50     5
Rain                                                        C
Snow                                                        C  C    S

$$
IAZ039-161000-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
651 PM CST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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          44          24          37          24
Temp                33 31 28 24 28 41 43 34 29 25 24 24 28 35 36 31 29 26 26 24
Dewpt               26 26 25 23 24 27 28 27 26 25 24 24 27 29 30 28 27 26 26 24
RH                  75 81 88 96 85 57 55 75 88100100100 96 78 79 88 92100100100
Wind dir             S  S  S  S  S  S  E  E  E NE NE NE NE  N  N  N  N NW  W SW
Wind spd             5  5  5  4  5  4  4  5  4  4  4  5  4  4  4  3  3  2  3  3
Clouds              B1 B1 SC SC FW SC SC SC SC SC SC B2 OV OV B2 B2 B2 B2 B2 B1
PoP 12hr                      0           0           0          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill             25 22 18 22                18 17
Min chill        30    24    18    18    26    19    17    18    26    22    18


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          43      28    42      22    43      30    38      14    23
Temp          39 40 37   28 42 34 26   24 41 37 32   31 38 31 21   14 22 20
Dewpt         29 30 28   26 24 21 19   18 22 26 30   31 30 25 17   11  9  9
PWind dir        SW       W    NW       W     S       S    NW       N    NW
Wind char        GN      GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    B1 SC SC   SC FW FW FW   SC B1 B1 B2   B2 OV OV OV   B2 B1 B1
PoP 12hr          5       5     0       0     5       5    60      50     5
Rain                                                     C  L
Snow                                                     C  L  C    C

$$
IAZ048-161000-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
651 PM CST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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          48          26          39          25
Temp                34 32 29 27 31 44 47 37 32 27 27 26 30 35 39 32 30 28 27 25
Dewpt               25 25 24 23 24 28 29 28 26 26 25 25 28 29 30 28 27 26 26 25
RH                  69 75 81 85 75 53 49 70 78 96 92 96 92 78 70 85 88 92 96100
Wind dir            SW SW SW SW SW SW SW NE NE NE NE NE NE  N  N  N  N NW  W SW
Wind spd             8  8  6  5  6  5  3  5  3  4  4  4  4  5  5  4  4  3  4  4
Clouds              SC SC FW FW FW FW SC SC SC SC SC B2 OV OV B2 B2 B2 B1 B2 B1
PoP 12hr                      0           0           5          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill          27 26 22 20 24                   20                      19
Min chill        33    25    18    19    31    22    19    20    26    23    18


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          47      28    45      25    48      31    39      14    26
Temp          43 42 38   28 45 37 28   27 46 43 37   31 39 29 21   14 25 23
Dewpt         30 31 28   24 23 20 19   19 26 31 33   31 29 22 14    9  8 10
PWind dir        SW       W    NW       W     S       S    NW      NW    NW
Wind char        GN      GN    GN      LT    GN      GN    GN      BZ    GN
Avg clouds    SC SC SC   FW FW FW FW   SC SC SC B1   B2 B2 OV OV   B2 B1 SC
PoP 12hr          5       0     0       0     0       0    50      50     5
Rain                                                     S  C
Snow                                                     S  C  C    C

$$
IAZ004-161000-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
651 PM CST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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          42          22          33          21
Temp                32 31 27 24 27 39 41 31 26 24 23 23 25 30 33 27 25 24 24 21
Dewpt               26 26 24 22 24 26 27 26 25 24 23 22 24 25 24 24 23 22 23 21
RH                  78 81 88 92 88 59 57 81 96100100 96 96 81 69 88 92 92 96100
Wind dir            SW SW SW SW  W  N  N  N  N  N  N  N  N  N  N  N NE SW SW SW
Wind spd             8  6  6  5  5  5  8  8  8  8  9  9  9  6  9  5  3  4  6  8
Clouds              B1 B1 SC SC B1 B1 B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 SC
PoP 12hr                      0           0           5           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill          25 24 20 17 21       24 18 15 13 13 15 23 25 20    18 17 12
Min chill        31    23    17    17    24    14    12    13    19    16    11


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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      24    40      21    42      23    28       7    21
Temp          40 37 31   25 40 31 23   23 41 37 31   24 26 19 11    8 20 13
Dewpt         27 27 25   22 20 19 17   17 23 29 26   24 18 13  5    4  8  9
PWind dir        SW       W    NW       W     S      SW     N      NW     W
Wind char        GN      GN    BZ      GN    GN      GN    BZ      BZ    GN
Avg clouds    SC SC SC   FW FW FW SC   B1 B1 B1 B2   B2 OV OV B2   B1 SC SC
PoP 12hr          0       5     0       0     5       5    50      30     5
Snow                                                     C  C  C    S

$$
IAZ035-161000-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
651 PM CST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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          47          24          36          23
Temp                34 32 28 25 30 44 46 36 30 26 25 24 27 33 36 30 27 25 25 23
Dewpt               26 25 24 22 24 28 28 27 26 24 24 24 26 27 27 26 25 24 24 23
RH                  72 75 85 88 78 53 49 69 85 92 96100 96 78 69 85 92 96 96100
Wind dir             S SW SW SW SW  W  N NE NE NE NE NE NE  N  N  N  N  W SW SW
Wind spd             8  6  6  5  5  4  5  5  5  5  6  5  6  6  6  4  4  3  4  4
Clouds              SC B1 SC FW SC SC SC SC SC SC SC B1 B2 B2 B1 B2 B2 B1 B2 B1
PoP 12hr                      0           0           5           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill          27 25 21 18 24             19 17 17 20                19 17
Min chill        36    24    18    18    30    19    16    17    24    19    17


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          45      27    43      24    47      28    35      10    24
Temp          42 40 34   28 43 35 26   26 45 43 34   28 35 26 16   10 22 21
Dewpt         29 28 26   23 22 19 18   18 25 30 30   28 24 18 10    6  7 10
PWind dir        SW       W    NW       W     S       S    NW      NW    NW
Wind char        GN      GN    GN      LT    GN      GN    BZ      BZ    GN
Avg clouds    SC SC SC   FW FW FW FW   SC SC B1 B1   B2 OV OV OV   B2 B1 SC
PoP 12hr          0       0     0       0     0       5    60      50     5
Rain                                                     C
Snow                                                     C  L  C    C

$$
IAZ094-161000-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
651 PM CST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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          54          33          45          31
Temp                35 35 33 30 35 49 53 43 37 33 33 34 37 42 45 39 37 34 32 31
Dewpt               23 24 24 24 26 28 29 29 28 28 29 29 33 35 36 34 33 30 30 30
RH                  61 64 69 78 69 44 39 57 70 82 85 82 85 76 70 82 85 85 92 96
Wind dir            SW SW SW SW SW SW SW  S  S  S  S  S  S SW  W NW NW  W  W SW
Wind spd            11 11 10 10 11 11  9  5  4  6  5  6  4  5  4  4  3  4  4  5
Clouds              SC FW FW FW FW FW CL FW FW SC B1 OV OV OV B2 B2 B2 B2 B2 B1
PoP 12hr                      0           0           5          60          10
QPF 12hr                      0           0           0        0.07           0
Snow 12hr                 00-00       00-00       00-00
Rain                                                  L  L
Wind chill          27 26 24 21 27                   28                      25
Min chill        29    25    21    21    38    26    26    30    34    30    25


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          50      31    49      29    52      36    46      16    30
Temp          46 45 39   31 48 40 32   31 50 47 41   37 46 32 21   17 29 24
Dewpt         32 32 29   26 25 22 19   22 28 32 34   35 34 24 15   12  8 10
PWind dir        SW       W    NW       W     S       S     W      NW    NW
Wind char        GN      GN    GN      LT    GN      GN    GN      BZ    GN
Avg clouds    SC SC FW   FW FW FW FW   FW FW FW SC   B1 B2 B2 B2   B2 B1 SC
PoP 12hr          5       5     0       0     0       0    50      50     0
Rain                                                        C
Snow                                                        C  C    S

$$
IAZ017-161000-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
651 PM CST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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          41          23          34          23
Temp                32 31 26 23 26 39 40 32 28 26 24 23 27 32 34 28 27 24 24 23
Dewpt               26 26 25 23 24 27 28 26 26 25 24 23 26 27 27 26 25 24 24 23
RH                  78 81 96100 92 62 62 78 92 96100100 96 81 75 92 92100100100
Wind dir             S  S  S SW  S NE NE NE NE NE NE NE NE  N  N  N  N NW SW SW
Wind spd             8  6  5  4  5  4  5  6  5  6  6  8  6  5  6  4  4  3  4  5
Clouds              B1 B2 B1 SC SC B1 B1 B1 B1 SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B1
PoP 12hr                      0           0           5           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill          26 24 20 17 19       25 22 18 16 15 20 26 28          18 16
Min chill        32    24    16    16    24    17    14    15    23    18    16


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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      26    40      21    41      26    33      10    21
Temp          39 38 33   26 40 31 23   23 40 36 29   26 32 25 17   10 21 14
Dewpt         28 28 27   24 22 20 18   18 21 27 28   26 25 19 12    7  7  8
PWind dir        SW       W    NW       W     S       S    NW      NW    NW
Wind char        GN      GN    BZ      GN    GN      GN    BZ      BZ    GN
Avg clouds    B1 SC SC   SC FW FW FW   SC B1 B1 B2   B2 OV OV OV   B2 B1 B1
PoP 12hr          0       5     0       0     0       5    60      40     5
Snow                                                     C  L  C    C

$$
IAZ049-161000-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
651 PM CST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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          47          25          38          25
Temp                32 31 28 26 30 44 46 36 30 26 26 25 30 36 38 33 30 29 27 25
Dewpt               24 24 24 23 24 27 28 27 26 25 24 25 28 30 30 28 27 26 26 25
RH                  72 75 85 88 78 51 49 69 85 96 92100 92 79 73 82 88 88 96100
Wind dir             S  S SW SW SW SW  S NE NE NE NE NE NE  N  N  N  N  N  W SW
Wind spd             8  8  6  5  6  5  4  4  3  4  4  5  4  4  5  4  3  3  4  4
Clouds              B1 B1 SC FW FW SC SC SC SC SC SC B2 OV OV B2 B2 B2 B2 B2 B1
PoP 12hr                      0           0           0          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill          25 24 21 18 23                20 18                      19
Min chill        31    22    17    17    31    19    18    19    26    24    19


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          45      27    43      23    45      30    39      14    24
Temp          41 42 37   27 43 33 26   25 44 39 34   31 39 29 21   14 23 20
Dewpt         30 30 28   24 23 20 19   18 24 28 31   31 31 24 16   11  8  9
PWind dir        SW       W    NW       W     S       S    NW      NW    NW
Wind char        GN      GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    B1 SC SC   SC FW FW FW   SC SC B1 B1   B2 OV OV OV   B2 B1 SC
PoP 12hr          5       5     0       0     0       5    60      50     5
Rain                                                     S  L
Snow                                                     S  L  C    C

$$
IAZ086-161000-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
651 PM CST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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          52          31          44          30
Temp                34 34 31 30 34 47 51 41 36 32 31 33 36 41 44 38 35 34 32 30
Dewpt               23 25 25 25 26 29 30 29 29 28 28 29 32 35 36 34 32 31 31 30
RH                  64 69 78 81 72 49 44 62 75 85 88 85 85 79 73 85 89 89 96100
Wind dir            SW SW SW SW SW SW SW  S  S  S  S  S SW SW  W  W  W  W  W SW
Wind spd            10 11 10  9 10 10  8  5  3  4  4  4  5  5  5  4  4  4  4  5
Clouds              SC SC FW FW FW FW FW FW FW SC B1 B2 OV OV OV B2 B2 B2 B2 B2
PoP 12hr                      0           0           5          60          10
QPF 12hr                      0           0           0        0.08           0
Snow 12hr                 00-00       00-00       00-00
Rain                                                  L  L  S  S
Snow                                                  S
Wind chill          27 26 23 21 26
Min chill        25    26    20    20    36    26    25    29    33    28    24


Date           12/18/17  Tue 12/19/17  Wed 12/20/17  Thu 12/21/17  Fri 12/22/17
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          50      31    48      27    50      35    47      19    30
Temp          46 45 42   31 47 40 30   29 49 41 39   36 47 37 26   19 29 27
Dewpt         33 33 30   28 26 22 20   20 25 29 33   34 35 28 19   15 11 10
PWind dir        SW       W    NW       W     S       S    SW      NW    NW
Wind char        GN      GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    B1 SC SC   SC FW FW FW   FW SC SC SC   B1 B2 B2 B2   B2 B1 SC
PoP 12hr          5       5     0       0     0       5    50      50     0
Rain                                                        C  C
Snow                                                           C    C

$$



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