Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
1120 AM CST Sun Dec 10 2017

IAZ060-102200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
1120 AM CST Sun Dec 10 2017

Date             Sun 12/10/17            Mon 12/11/17            Tue 12/12/17
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                      46          27          43          21          35
Temp                   43 45 34 30 27 29 30 36 41 40 36 31 27 23 21 22 30 35 32
Dewpt                  24 25 25 24 23 24 24 25 29 29 26 23 18 16 14 13 15 18 20
RH                     47 45 69 78 85 81 78 64 62 64 67 72 68 74 74 68 53 49 61
Wind dir               NW NW NW  W SW SW SW  W NW NW NW  N NW NW NW NW NW NW NW
Wind spd               13 12  5  4  4  5  8 14 20 20 20 20 18 13 12 11 13 13  5
Wind gust                                      33 32
Clouds                 CL FW FW SC B2 B1 SC SC B2 OV B2 B1 SC FW FW FW SC B1 B2
PoP 12hr                      0           5          10           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill             36 39          23 22 27 31 30 25 19 14 11  8 10 19 26 26
Min chill              31    28    20    21    23    24    13     7     7    22


Date               Wed 12/13/17  Thu 12/14/17  Fri 12/15/17  Sat 12/16/17
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            23    41      26    37      23    44      29    45
Temp          27   25 40 37 31   27 36 34 26   25 42 41 35   30 44 41
Dewpt         21   21 25 26 26   24 24 21 21   21 25 26 26   26 29 29
PWind dir          NW     S      NW    NW      NW    SW      SW    NW
Wind char          LT    LT      LT    GN      LT    GN      GN    GN
Avg clouds    B1   SC B1 B1 B1   B2 B2 B1 SC   SC B1 SC SC   SC B1 B1
PoP 12hr            0    30       5     5       5     0       5    20
Rain                   C                                            S
Snow                   C

$$
IAZ039-102200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
1120 AM CST Sun Dec 10 2017

Date             Sun 12/10/17            Mon 12/11/17            Tue 12/12/17
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                      35          24          39          16          27
Temp                   33 34 28 25 24 25 28 30 37 33 31 29 24 19 17 17 24 27 24
Dewpt                  23 23 22 21 21 23 25 27 29 29 25 21 17 13 11 10 10 11 13
RH                     66 64 78 84 88 92 88 88 72 85 78 72 74 77 77 73 54 50 62
Wind dir               NW NW NW NW  S  S  S SW NW NW NW NW NW NW NW NW NW NW NW
Wind spd               13 12  6  4  3  6  8 10 14 18 20 20 19 17 13 12 13 13  8
Wind gust                                         28 31
Clouds                 SC SC B1 B2 OV B2 B1 B2 B2 OV B2 SC SC SC SC SC SC B1 B1
PoP 12hr                      0          10          20           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      S
Snowshwrs                                          S
Wind chill             24 25 20       17 20 21 28 22 18 16 10  4  3  3 12 16 15
Min chill              20    19    17    17    19    17     8     1     0    14


Date               Wed 12/13/17  Thu 12/14/17  Fri 12/15/17  Sat 12/16/17
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            14    33      22    32      20    38      26    41
Temp          19   17 31 32 30   22 32 28 22   21 36 36 32   27 40 36
Dewpt         13   12 18 21 22   22 22 21 18   19 23 25 26   25 29 28
PWind dir           N    SE       W    NW      NW    SW      SW     W
Wind char          LT    LT      LT    GN      GN    GN      GN    GN
Avg clouds    SC   SC B1 B1 B2   B2 B2 B2 B1   SC B1 B1 B1   B1 B1 B1
PoP 12hr           10    20       5     5       5     5       5     5
Snow                   S  S

$$
IAZ048-102200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
1120 AM CST Sun Dec 10 2017

Date             Sun 12/10/17            Mon 12/11/17            Tue 12/12/17
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                      42          26          42          19          33
Temp                   39 41 31 27 26 28 28 34 40 37 33 30 26 22 20 20 29 33 30
Dewpt                  24 25 25 24 24 24 25 26 29 30 27 22 18 15 13 13 16 19 20
RH                     54 52 78 88 92 85 88 72 64 75 78 72 71 74 74 74 58 56 66
Wind dir               NW NW NW  W SW SW SW NW NW NW NW NW NW NW NW NW NW NW NW
Wind spd               14 13  6  4  4  5  5 14 21 21 21 20 19 16 13 12 13 13  6
Wind gust                                   25 33 33
Clouds                 FW FW FW SC B2 B1 SC SC B2 OV B2 SC SC FW FW FW SC B1 B2
PoP 12hr                      0           5          10           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      S  S
Wind chill             31 34 24    20 21 22 24 30 26 21 17 12  8  7  7 18 23 23
Min chill              25    23    19    19    20    19    11     6     6    21


Date               Wed 12/13/17  Thu 12/14/17  Fri 12/15/17  Sat 12/16/17
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            21    39      25    35      22    42      27    43
Temp          26   23 38 35 30   25 35 31 26   23 40 38 32   28 42 38
Dewpt         21   20 25 25 25   23 23 21 20   20 25 26 27   25 29 28
PWind dir           N     S       W    NW      NW    SW      SW    NW
Wind char          LT    LT      GN    GN      GN    GN      GN    GN
Avg clouds    B1   SC B1 B1 B1   B2 B2 B1 B1   SC B1 B1 B1   B1 B1 B1
PoP 12hr            0    30       5     5       5     0       5    20
Rain                   C                                            S
Snow                   C

$$
IAZ004-102200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
1120 AM CST Sun Dec 10 2017

Date             Sun 12/10/17            Mon 12/11/17            Tue 12/12/17
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                      35          25          36          15          29
Temp                   34 34 27 25 27 29 29 33 35 31 25 21 19 15 15 16 25 29 25
Dewpt                  25 26 25 24 25 26 25 28 29 26 21 18 15 13 13 14 18 21 21
RH                     69 72 92 96 92 88 85 82 78 81 84 88 84 92 92 92 74 72 84
Wind dir               NW NW  W SW SW SW  W NW NW NW  N  N NW NW NW NW NW NW NW
Wind spd               14 13  5  5  8  9 11 19 24 25 23 21 17 13 13 11 12 12  6
Wind gust                                      35 35
Clouds                 SC B1 B1 B2 B2 B1 B1 B2 OV B2 B2 SC SC SC SC SC B2 B2 B2
PoP 12hr                      0          10          20           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snowshwrs                                 S  S  S  S
Wind chill             24 25 20 18 19 20 19 21 23 17 10  5  4  0  0  3 13 19 17
Min chill              20    20    16    18    19     8     3    -1     0    16


Date               Wed 12/13/17  Thu 12/14/17  Fri 12/15/17  Sat 12/16/17
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            19    34      22    31      19    38      25    39
Temp          21   20 33 30 27   22 31 27 22   21 37 35 31   26 39 33
Dewpt         20   19 25 25 24   22 21 21 19   20 24 25 25   24 28 26
PWind dir          SW    SW      NW    NW       W    SW       W    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    B2   B1 B1 B1 B2   B2 B2 B2 B1   B1 B1 B1 B1   B2 B1 B1
PoP 12hr            5    10       5    10       5     0       5    10

$$
IAZ035-102200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
1120 AM CST Sun Dec 10 2017

Date             Sun 12/10/17            Mon 12/11/17            Tue 12/12/17
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                      40          26          40          17          33
Temp                   39 38 29 26 26 27 29 32 39 35 31 27 23 19 17 19 29 33 29
Dewpt                  24 26 26 25 25 25 24 27 29 28 23 20 16 14 12 13 17 20 20
RH                     54 62 88 96 96 92 81 81 67 75 72 74 74 80 80 77 60 58 69
Wind dir               NW NW NW  W SW  S SW NW NW NW NW  N  N NW NW NW NW NW NW
Wind spd               14 13  5  3  3  6  8 13 18 18 18 17 16 11 11 11 11 12  5
Wind gust                                   26 34 33 31 27
Clouds                 FW FW SC B1 B2 B1 B1 B1 OV OV B2 SC SC FW SC SC B1 B2 B2
PoP 12hr                      0          10          20           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      S
Snowshwrs                                          S
Wind chill             31 30 23       20 21 22 29 25 19 14 10  7  4  7 19 24 23
Min chill              25    22    20    19    21    18     8     4     4    22


Date               Wed 12/13/17  Thu 12/14/17  Fri 12/15/17  Sat 12/16/17
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            22    38      24    35      21    41      26    42
Temp          25   23 37 32 28   24 35 30 23   23 39 38 31   27 41 36
Dewpt         20   20 25 25 25   23 22 21 19   20 24 25 26   25 29 27
PWind dir          NE     S      NW    NW      NW    SW       W    NW
Wind char          LT    LT      GN    GN      LT    GN      GN    GN
Avg clouds    B1   B1 B1 B1 B1   B2 B2 B2 B1   SC B1 B1 B1   B1 B1 B1
PoP 12hr            5    20       5    10       5     0       5     5
Rain                   S
Snow                   S

$$
IAZ094-102200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
1120 AM CST Sun Dec 10 2017

Date             Sun 12/10/17            Mon 12/11/17            Tue 12/12/17
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          28          46          22          37
Temp                   44 46 35 31 28 29 30 37 44 42 39 34 28 24 23 23 33 37 34
Dewpt                  25 26 26 24 23 23 24 25 28 28 27 24 20 18 16 16 17 20 22
RH                     47 45 69 75 81 78 78 61 53 57 62 66 71 77 74 74 51 50 61
Wind dir               NW NW NW  W SW SW SW  W NW NW NW NW  N  N NW NW NW NW  W
Wind spd               13 13  6  5  5  5 10 16 24 24 20 19 18 13 12 11 13 14  6
Wind gust                                   26 35 34 31 29
Clouds                 CL CL CL FW SC SC SC SC SC B2 OV B2 SC FW FW FW SC B1 B1
PoP 12hr                      0           0          10           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill             37    29 25 22 23 21 27 35 33 29 23 16 12 11 12 23 28 28
Min chill              31    28    20    20    22    28    14    10     9    25


Date               Wed 12/13/17  Thu 12/14/17  Fri 12/15/17  Sat 12/16/17
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            23    44      27    39      24    46      30    47
Temp          28   26 43 36 31   27 38 34 27   26 44 42 37   31 47 40
Dewpt         22   22 26 26 27   25 24 22 21   22 25 26 26   27 29 29
PWind dir           W    SW      NW    NW       W    SW      SW    NW
Wind char          LT    LT      GN    GN      GN    GN      GN    GN
Avg clouds    B1   SC SC SC SC   B1 B1 B1 SC   SC SC SC SC   SC B1 B1
PoP 12hr            0    20       5     5       0     0       0    30
Rain                   S                                            C
Snow                   S

$$
IAZ017-102200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
1120 AM CST Sun Dec 10 2017

Date             Sun 12/10/17            Mon 12/11/17            Tue 12/12/17
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                      33          24          37          14          27
Temp                   32 32 26 25 24 26 28 31 36 34 29 25 21 16 15 15 24 27 23
Dewpt                  23 23 22 21 22 25 26 28 30 28 24 20 15 12 10 11 13 16 15
RH                     69 69 85 84 92 96 92 88 79 78 81 81 77 84 80 84 62 63 71
Wind dir               NW NW NW  W SW  S SW  W NW NW NW NW NW NW NW NW NW NW NW
Wind spd               14 13  6  4  5  9  9 12 19 21 23 21 19 16 14 12 13 12  8
Wind gust                                      32 33    32
Clouds                 SC B1 B1 B2 OV B2 B1 B2 OV OV B2 SC SC FW SC SC B1 B2 B1
PoP 12hr                      0          20          20           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                S  S
Snowshwrs                                 S  S  S  S
Wind chill             22 22 18 19 17 17 19 21 25 22 16 11  6  1  0  1 12 16 14
Min chill              19    16    16    15    19    15     6    -1    -1    13


Date               Wed 12/13/17  Thu 12/14/17  Fri 12/15/17  Sat 12/16/17
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            16    33      22    31      19    37      25    38
Temp          20   19 32 27 31   22 31 27 22   21 36 33 30   26 38 33
Dewpt         15   15 21 23 23   21 21 21 19   19 23 25 26   25 28 27
PWind dir          NE     S       W    NW      NW    SW      SW     W
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    B1   B1 B1 B1 B2   B2 B2 B2 B1   B1 B1 B1 B1   B1 B2 B1
PoP 12hr            5    20      10     5       5     0       0     5
Snow                   S

$$
IAZ049-102200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
1120 AM CST Sun Dec 10 2017

Date             Sun 12/10/17            Mon 12/11/17            Tue 12/12/17
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                      39          25          40          17          30
Temp                   37 38 29 25 25 27 27 32 37 36 32 29 25 20 17 18 26 30 27
Dewpt                  23 23 24 22 22 24 25 26 29 29 25 22 17 14 12 12 12 14 16
RH                     56 54 81 88 88 88 92 78 72 75 75 75 71 77 80 77 55 51 63
Wind dir               NW NW NW NW SW  S  S  W NW NW NW NW NW NW NW NW NW NW NW
Wind spd               14 13  6  4  4  6  6 11 18 21 21 21 20 16 14 12 13 14  8
Wind gust                 24                   29    32
Clouds                 SC FW SC B1 B2 B2 B1 B1 B2 OV B2 SC SC FW FW FW SC B1 B1
PoP 12hr                      0           5          20           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      S
Snowshwrs                                          S
Wind chill             28 30 22    19 20 20 23 27 24 19 16 10  6  3  5 14 19 19
Min chill              23    21    18    18    19    19     9     1     2    16


Date               Wed 12/13/17  Thu 12/14/17  Fri 12/15/17  Sat 12/16/17
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            17    34      23    33      20    40      25    41
Temp          22   19 32 32 28   24 33 29 24   21 38 36 31   26 40 37
Dewpt         17   15 21 23 23   22 22 21 19   19 24 25 26   25 29 28
PWind dir           N    SE       W    NW      NW    SW      SW     W
Wind char          LT    LT      GN    GN      GN    GN      GN    GN
Avg clouds    B1   SC B1 B1 B1   B2 B2 B2 B1   SC B1 B1 B1   B1 B1 B1
PoP 12hr            5    30       5     5       5     0       5    20
Rain                                                                S
Snow                   C

$$
IAZ086-102200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
1120 AM CST Sun Dec 10 2017

Date             Sun 12/10/17            Mon 12/11/17            Tue 12/12/17
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          26          44          20          33
Temp                   40 42 31 28 26 28 29 35 41 42 37 33 29 23 21 21 30 33 32
Dewpt                  24 24 24 22 22 23 25 26 28 29 27 25 20 16 13 13 12 12 15
RH                     52 48 75 78 85 81 85 69 59 60 67 72 69 74 71 71 46 41 49
Wind dir               NW NW NW NW SW  S  S SW NW NW NW NW NW NW NW NW NW NW NW
Wind spd               16 16  6  4  4  5  8 12 18 20 20 20 19 16 14 11 14 14  8
Wind gust                                      28
Clouds                 CL FW CL SC B1 B1 SC SC B1 OV OV B1 SC FW FW FW SC SC B1
PoP 12hr                      0           5          10           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill             32 34 24 22 20 21 21 26 32 33 26 21 16 10  8  9 19 23 25
Min chill              28    24    20    19    22    26    15     8     7    20


Date               Wed 12/13/17  Thu 12/14/17  Fri 12/15/17  Sat 12/16/17
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            21    38      25    36      23    43      29    45
Temp          27   22 37 33 30   25 35 33 26   24 41 40 36   30 45 39
Dewpt         18   16 22 23 24   23 23 21 21   20 24 26 26   27 29 28
PWind dir           N    SE       W    NW      NW    SW      SW     W
Wind char          LT    LT      LT    GN      GN    GN      GN    GN
Avg clouds    B1   SC SC B1 B1   B2 B2 B1 B1   SC SC SC SC   B1 B1 B1
PoP 12hr            0    30       5     5      10     0       5    30
Rain                                                                C
Snow                   C

$$



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