Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
937 PM CST Mon Dec 11 2017

IAZ060-121000-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
937 PM CST Mon Dec 11 2017

Date           12/11/17      Tue 12/12/17            Wed 12/13/17            Thu
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                      19          36          27          46          27
Temp                   25 21 19 22 32 36 33 30 28 27 27 31 41 46 37 34 31 30 27
Dewpt                  17 13 11 12 15 20 22 24 24 24 24 25 27 28 27 27 25 24 23
RH                     71 71 70 65 49 52 63 78 85 88 88 78 57 49 67 75 78 78 85
Wind dir               NW NW NW NW NW  W  W SW  S  S SW SW NW NW NW  N NW NW NW
Wind spd               17 13 11 11 10  9  4  3  4  4  8  9 14 17 20 18 13 10  9
Clouds                 FW CL CL FW B1 B2 B2 B1 SC SC B1 B1 B1 SC SC B1 B1 B1 B2
PoP 12hr                      0           0           5           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle
Flurries
Sprinkles
Wind chill             12  8  7 11 24 29       22 20 19 23 33 39 27 23 21 21 18
Min chill              10     5     5    26    20    18    19    26    20    17


Date           12/14/17  Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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          36      21    41      28    48      29    44      30    49
Temp          34 32 26   22 39 37 31   30 47 42 33   30 43 41 34   32 49 40
Dewpt         22 21 19   19 23 24 23   25 28 29 27   26 25 25 24   24 31 24
PWind dir        NW      NW     W      SW     W      NW     W       W     W
Wind char        GN      GN    GN      GN    LT      LT    GN      LT    GN
Avg clouds    B2 B2 B1   SC SC SC SC   SC B1 B1 B2   B1 B1 B1 SC   SC B1 SC
PoP 12hr         10       5     0       0     5      20     0      10     5
Rain                                             S
Snow                                             S

$$
IAZ039-121000-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
937 PM CST Mon Dec 11 2017

Date           12/11/17      Tue 12/12/17            Wed 12/13/17            Thu
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                      14          28          21          38          22
Temp                   24 18 14 16 24 28 24 23 23 21 22 26 35 37 32 29 27 25 23
Dewpt                  16 12 10 10  8 12 15 18 19 19 21 23 26 27 25 26 24 23 21
RH                     71 77 84 77 50 50 68 81 84 92 96 88 69 67 75 88 88 92 92
Wind dir               NW NW NW NW NW NW  W SW  S  S  S  S NW NW NW NW NW NW NW
Wind spd               18 16 12 11 10 10  4  3  3  4  6  8 10 14 18 17 14 10 10
Clouds                 SC FW FW FW FW SC B1 B1 B1 SC B1 B2 B1 SC B2 B2 B2 B1 B2
PoP 12hr                      0           0           5          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle
Wind chill             10  4  0  3 14 19          15 14 18 27 28 20 17 15 15 12
Min chill              10    -1     0    14    16    13    15    19    14    11


Date           12/14/17  Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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          32      18    35      24    42      26    39      26    43
Temp          31 28 22   19 33 32 27   26 41 36 31   26 38 35 30   28 43 35
Dewpt         21 20 18   17 21 23 23   24 29 29 27   25 25 25 25   25 29 25
PWind dir        NW      NW     W      SW     W      NW    NW      SW     W
Wind char        GN      GN    GN      LT    LT      LT    GN      LT    GN
Avg clouds    B2 B2 B1   SC B1 B1 B1   B1 B1 B2 B2   B1 B1 B1 B1   B1 B1 SC
PoP 12hr         10       5    10       5    10      20     5      20    20
Rain                                             S             S       S
Snow                                             S             S       S

$$
IAZ048-121000-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
937 PM CST Mon Dec 11 2017

Date           12/11/17      Tue 12/12/17            Wed 12/13/17            Thu
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                      16          32          25          43          25
Temp                   24 19 16 18 28 32 29 28 26 25 26 30 41 42 35 32 29 29 25
Dewpt                  16 12 11 12 15 21 22 24 24 24 24 25 27 29 28 27 25 24 22
RH                     71 74 80 77 58 63 75 85 92 96 92 81 57 60 75 81 85 81 88
Wind dir               NW NW NW NW NW  W  W SW  S  S SW  W NW NW NW NW NW NW NW
Wind spd               17 14 11 11 10  9  4  4  4  4  6  9 16 19 23 18 16 11 10
Clouds                 FW CL CL SC B1 B2 B2 B1 SC SC B1 B2 B1 SC B1 B1 B2 B1 B2
PoP 12hr                      0           0           5           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle
Wind chill             10  5  3  5 18 24          19 18 22 33 33 23 20 18 19 15
Min chill              10     2     2    20    19    18    20    23    17    14


Date           12/14/17  Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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          34      20    39      26    45      27    42      28    47
Temp          33 30 25   21 37 35 30   28 45 37 31   28 41 37 32   30 47 37
Dewpt         22 21 19   18 23 23 24   25 29 29 27   25 26 25 25   24 30 25
PWind dir        NW      NW     W      SW     W      NW    NW       W     W
Wind char        GN      GN    GN      GN    LT      GN    GN      GN    GN
Avg clouds    B2 B2 B1   SC SC B1 B1   B1 B1 B2 B2   B1 B1 B1 B1   SC B1 SC
PoP 12hr         10       0     5       0     5      20     5      10     5
Rain                                             S
Snow                                             S

$$
IAZ004-121000-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
937 PM CST Mon Dec 11 2017

Date           12/11/17      Tue 12/12/17            Wed 12/13/17            Thu
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                      14          29          24          38          22
Temp                   16 14 14 17 25 29 27 25 24 24 26 29 37 37 30 29 26 24 22
Dewpt                  12 10 11 15 20 24 24 25 23 23 24 25 27 28 26 25 23 23 21
RH                     84 84 88 92 81 81 88100 96 96 92 85 67 70 85 85 88 96 96
Wind dir               NW NW NW  W  W  W SW SW SW SW  W  W NW NW NW NW NW NW NW
Wind spd               17 13 11  9  8  8  5  4  5  8 11 12 21 26 23 14 17 12 11
Wind gust                                                     36    26    23
Clouds                 CL CL FW B2 OV OV B2 B1 SC SC B2 B2 SC B1 B2 B2 B2 B1 B2
PoP 12hr                      0           5           5           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill              0 -1  0  6 16 21 21 19 17 15 16 18 26 25 17 17 13 12 10
Min chill              -3    -1     0    18    16    13    14    15    12    10


Date           12/14/17  Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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          31      19    36      23    40      23    38      25    41
Temp          31 26 20   22 35 31 27   24 40 33 27   24 38 32 28   26 41 32
Dewpt         19 19 16   19 22 23 24   24 29 27 25   23 24 24 23   23 26 23
PWind dir        NW      NW     W      SW    NW      NW     W      SW     W
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    B2 B2 B1   B1 B1 B1 B2   B1 B1 B2 B2   B1 B1 B1 B1   B1 B1 B1
PoP 12hr         10       5     5       5    10      10     5      20    10
Snow                                                           S

$$
IAZ035-121000-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
937 PM CST Mon Dec 11 2017

Date           12/11/17      Tue 12/12/17            Wed 12/13/17            Thu
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                      15          32          24          42          24
Temp                   20 17 15 17 27 32 29 26 24 24 25 29 39 41 34 30 28 26 24
Dewpt                  13 11 10 13 18 22 24 24 24 23 23 25 27 29 27 26 24 23 21
RH                     74 77 80 84 68 66 81 92100 96 92 85 62 62 75 85 85 88 88
Wind dir                N NW NW NW  W  W SW SW  S  S SW  W NW NW NW NW NW NW NW
Wind spd               17 13 12 10  9  8  4  4  4  4  6  8 13 16 16 16 10 11  9
Clouds                 FW CL FW SC B2 OV B2 SC SC SC B1 B2 B1 SC B2 B1 B2 B1 B2
PoP 12hr                      0           5           5           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle
Wind chill              6  3  2  5 18 25    20 18 18 17 21 31 33 23 19 18 15 14
Min chill               5     1     2    22    18    17    18    22    17    14


Date           12/14/17  Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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          33      20    37      25    43      26    41      27    46
Temp          33 29 23   21 35 35 28   27 43 35 29   27 40 36 31   29 46 37
Dewpt         21 19 17   18 23 24 23   24 30 28 26   25 26 25 24   24 28 24
PWind dir        NW      NW     W      SW     W      NW     W      SW     W
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    B2 B2 B1   SC SC B1 B1   B1 B1 B2 B2   B1 B1 B1 B1   SC B1 SC
PoP 12hr         10       0     5       0    20      10     5      10    10
Rain                                          S

$$
IAZ094-121000-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
937 PM CST Mon Dec 11 2017

Date           12/11/17      Tue 12/12/17            Wed 12/13/17            Thu
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                      18          35          27          48          27
Temp                   25 21 18 21 31 35 32 30 28 27 28 32 45 47 38 34 30 30 27
Dewpt                  18 14 13 15 16 21 23 25 25 24 24 24 26 27 27 28 26 25 23
RH                     74 74 80 77 53 56 69 81 88 88 85 72 47 45 64 78 85 81 85
Wind dir                N NW NW NW NW NW  W SW SW SW SW SW NW NW NW  N NW NW NW
Wind spd               17 13 12 11 11 11  5  5  6  6 10 10 18 19 19 16 11 10 10
Clouds                 FW CL CL FW SC B1 B1 SC FW FW SC SC B1 FW SC SC B1 B1 B2
PoP 12hr                      5           0           0          10           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle
Flurries
Sprinkles
Wind chill             12  8  5  9 22 27 26 24 21 20 18 24 37    28 24 21 21 17
Min chill              12     4     5    25    20    17    19    28    20    17


Date           12/14/17  Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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          37      23    42      30    50      30    46      31    50
Temp          35 33 28   24 41 37 33   32 49 43 36   31 45 40 35   33 50 41
Dewpt         23 22 21   20 23 23 23   25 28 29 28   27 26 24 23   25 30 25
PWind dir        NW      NW     W      SW     W      NW     W      SW     W
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 B2 B1   SC SC SC SC   SC SC B1 B1   B1 SC SC SC   SC SC SC
PoP 12hr         20      10     0       0     5      10     0      10     0
Rain              S
Snow              S

$$
IAZ017-121000-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
937 PM CST Mon Dec 11 2017

Date           12/11/17      Tue 12/12/17            Wed 12/13/17            Thu
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                      12          27          21          36          22
Temp                   20 15 12 14 23 27 23 24 24 21 22 26 34 35 29 28 26 24 22
Dewpt                  13 10 10 10 13 18 18 21 22 21 22 25 27 28 25 26 23 22 21
RH                     74 80 91 84 65 68 81 88 92100100 96 75 75 85 92 88 92 96
Wind dir               NW NW NW NW NW NW SW SW  S  S SW SW NW NW NW NW NW NW NW
Wind spd               18 14 12 11 11  9  4  4  5  6  8  9 16 21 21 16 18 12 11
Clouds                 FW CL FW FW SC B2 B2 B2 SC SC B2 B2 B1 B1 B2 B1 B2 B1 B2
PoP 12hr                      0           5          10          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill              5  0 -3  0 12 18 17 18 17 13 13 17 24 24 16 16 13 13 10
Min chill               5    -4    -3    14    15    12    14    16    13    10


Date           12/14/17  Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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          31      18    34      23    39      23    37      25    41
Temp          31 27 22   19 33 28 27   24 39 32 28   23 37 32 29   26 41 32
Dewpt         21 19 16   17 22 23 23   24 29 28 26   23 25 24 24   24 28 24
PWind dir        NW      NW     W      SW     W      NW     W      SW     W
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    B2 B2 B1   SC B1 B1 B2   B1 B1 B2 B2   B1 B1 B1 B1   B1 B1 B1
PoP 12hr         10       5    10       5    20      20     5      20    20
Rain                                          S                        S
Snow                                          S  S             S       S

$$
IAZ049-121000-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
937 PM CST Mon Dec 11 2017

Date           12/11/17      Tue 12/12/17            Wed 12/13/17            Thu
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                      15          32          23          41          23
Temp                   25 19 15 17 28 32 27 26 26 24 23 28 39 40 33 30 28 26 23
Dewpt                  17 12 10 10 11 16 17 21 22 23 22 24 26 27 26 26 24 23 21
RH                     71 74 80 73 48 51 65 81 85 96 96 85 59 59 75 85 85 88 92
Wind dir               NW NW NW NW NW NW  W SW  S  S  S SW NW NW NW NW NW NW NW
Wind spd               17 14 12 11 11 10  3  3  4  4  6  8 13 18 21 18 16 11 10
Clouds                 SC FW FW FW FW B1 B1 B1 SC SC B1 B2 B1 SC B1 B1 B1 B1 B2
PoP 12hr                      0           0           5           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle
Wind chill             12  5  1  4 18 24       20 18 15 20 31 31 21 18 16 15 12
Min chill              11     0     0    20    20    15    16    21    15    12


Date           12/14/17  Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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          33      18    37      25    43      26    41      27    45
Temp          32 29 25   19 35 33 28   27 43 36 31   26 40 36 32   28 45 36
Dewpt         21 20 19   17 22 23 23   24 29 29 27   25 25 24 24   24 30 25
PWind dir        NW      NW     W      SW     W      NW    NW       W     W
Wind char        GN      GN    GN      GN    GN      GN    GN      LT    BZ
Avg clouds    B2 B2 B1   SC SC B1 B1   B1 B1 B2 B2   B1 B1 B1 B1   SC SC SC
PoP 12hr         10       5     5       0     5      20     5      10    10
Rain                                             S
Snow                                             S

$$
IAZ086-121000-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
937 PM CST Mon Dec 11 2017

Date           12/11/17      Tue 12/12/17            Wed 12/13/17            Thu
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                      18          33          24          45          25
Temp                   29 22 18 20 29 32 27 25 25 24 25 30 43 44 37 32 30 27 25
Dewpt                  20 15 12 12 10 14 16 19 22 23 23 25 27 27 26 27 25 24 22
RH                     69 74 77 71 44 47 63 78 88 96 92 81 53 51 64 81 81 88 88
Wind dir               NW NW NW NW NW NW  W SW  S  S  S  S  W NW NW NW NW NW NW
Wind spd               18 16 13 12 11 11  5  3  4  5 10 10 12 13 18 19 13 11 10
Clouds                 B1 FW CL FW FW SC B1 B1 SC SC SC B1 B1 SC SC SC B1 B1 B2
PoP 12hr                      5           0           5           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle
Flurries
Sprinkles
Wind chill             17  9  4  8 19 23 20    19 17 15 21 36 37 26 20 19 17 15
Min chill              17     4     4    19    18    14    15    24    17    15


Date           12/14/17  Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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          35      21    40      28    49      29    43      30    49
Temp          33 31 26   22 38 36 31   31 48 41 34   29 42 39 34   31 49 40
Dewpt         22 20 19   18 22 23 24   25 29 29 29   26 26 25 24   25 31 27
PWind dir        NW      NW     W      SW    SW       W    NW       W     W
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 B2 B1   SC SC SC SC   SC B1 B1 B1   B1 B1 B1 SC   SC SC SC
PoP 12hr         10       5     0       0     5       5     5       5     5

$$



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