Point Forecast Matrices
Issued by NWS Des Moines, IA

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697
FOUS53 KDMX 120922
PFMDMX

Point Forecast Matrices
National Weather Service Des Moines IA
321 AM CST Tue Dec 12 2017

IAZ060-122200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
321 AM CST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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          29          45          26          37
Temp             18 21 30 35 32 30 29 30 32 38 44 44 38 34 29 28 26 29 34 37 33
Dewpt            10 10 11 17 22 25 25 25 24 26 29 29 25 24 22 22 21 21 22 23 23
RH               70 62 44 47 66 81 85 81 72 62 55 55 59 66 75 78 81 72 61 56 66
Wind dir         NW NW NW  W SW SW SW SW SW NW NW NW NW NW NW NW NW NW NW NW NW
Wind spd         10  9  9 10  5  5  8  9 11 17 26 27 24 18 12  8  6  5  6  8  5
Wind gust                                   31    40 35 31
Clouds           FW FW SC B2 B2 SC FW SC SC B2 OV B2 B2 B1 B1 B1 B2 B2 B2 OV OV
PoP 12hr                      0           0          20           0          10
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                                                C
Rain                                         S
Snow                                                                          S
Sprinkles                                                                  C
Wind chill        6 10 21 27    24 21 22 23 28 34 34 27 23 19 20 18 23 28 31
Min chill         3     6    24    19    20    23    26    17    18    18    28


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            25    38      27    47      28    41      28    48
Temp          29   27 36 34 29   27 40 37 32   28 36 33 29   28 44 38
Dewpt         22   21 23 22 21   22 27 27 27   25 25 25 23   24 27 26
PWind dir          NW     W      SW    SW      NW    NW      SW     W
Wind char          LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    OV   B1 B1 B1 B1   SC B1 B1 B1   B1 B1 SC SC   SC SC SC
PoP 12hr           20     5       0     0      20     5       5     0
Rain                                       S
Snow           S                           S    S

$$
IAZ039-122200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
321 AM CST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      28          26          38          20          32
Temp             16 16 23 28 26 26 26 26 27 32 37 37 31 28 25 22 20 24 30 32 30
Dewpt            10  8  7 12 16 19 22 23 24 26 29 27 23 22 20 19 18 20 20 21 21
RH               77 70 50 50 65 74 85 88 88 78 72 67 72 78 81 88 92 84 66 63 69
Wind dir         NW NW NW  W SW  S  S  S  S  W NW NW NW NW  N NW NW NW  W NW NW
Wind spd         12 10 10 10  5  5  8  8  8 12 25 27 24 18 11  8  6  5  6  6  5
Wind gust                                      35 39 36 29
Clouds           FW FW SC B2 B2 B1 SC B1 SC OV OV B2 B2 B1 B2 B1 B2 B2 OV B2 B2
PoP 12hr                      0          10          30           5          10
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                                                      C
Rain                                            S
Snow                                      S  C
Wind chill        2  4 13 19 19 20 18 18 19 22 25 25 18 16 14 13 11 17 23 26 23
Min chill         0     2    15    18    17    18    16    13    11    11    22


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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    32      21    37      24    35      23    42
Temp          25   22 30 26 23   21 31 28 26   24 30 26 24   23 38 34
Dewpt         20   18 19 19 19   20 25 25 25   22 24 23 23   23 27 26
PWind dir          NW    NW      SW     S      NW    NW      SW    SW
Wind char          GN    GN      LT    GN      LT    GN      LT    GN
Avg clouds    OV   B2 B1 B1 B1   B1 B1 B2 B2   B2 B1 B1 B1   SC SC SC
PoP 12hr           10     5       0    20      30    10      20     5
Flurries       C
Rain                                    S
Snow                                    S  C    S        S

$$
IAZ048-122200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
321 AM CST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      34          28          43          24          35
Temp             17 19 29 34 31 31 28 29 30 36 42 41 34 31 28 26 24 27 33 35 31
Dewpt             9  9 13 19 22 25 25 25 24 27 29 28 25 23 22 21 20 21 22 23 23
RH               70 64 51 54 69 78 88 85 78 69 60 59 69 72 78 81 84 78 63 61 72
Wind dir         NW NW NW  W SW SW  S SW SW NW NW NW NW NW NW NW NW NW NW NW NW
Wind spd         11 11 10 10  5  5  8  9 10 19 27 29 25 19 12 10  8  6  8  9  6
Wind gust                                   33 37 41 36 29 24
Clouds           FW SC SC B2 B2 SC FW SC SC OV B2 B2 B2 B1 B2 B1 B2 B2 B2 OV OV
PoP 12hr                      0           5          20           0          10
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                                                C  C
Rain                                         S
Snow                                         S                                S
Sprinkles                                                                  C
Wind chill        4  7 20 26 25 24 20 20 21 25 32 30 21 18 18 17 15 20 26 28 24
Min chill         1     3    22    20    19    20    20    16    14    15    22


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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    36      25    43      26    39      26    46
Temp          27   25 34 30 28   25 37 34 29   26 34 30 28   26 43 36
Dewpt         21   20 22 21 21   21 27 27 26   24 25 25 23   23 28 26
PWind dir          NW     W      SW    SW       N    NW      SW     W
Wind char          GN    GN      LT    GN      GN    GN      LT    GN
Avg clouds    OV   B1 B1 B1 B1   B1 B1 B2 B2   B1 B1 SC SC   SC SC SC
PoP 12hr           20     5       0     5      30     5      10     5
Snow           S                           C    S

$$
IAZ004-122200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
321 AM CST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      31          28          36          21          31
Temp             13 15 26 31 29 28 29 31 32 34 36 35 29 26 24 22 21 24 29 31 27
Dewpt             8 11 18 24 25 25 24 24 26 28 27 25 23 21 20 19 19 21 22 23 23
RH               80 84 71 75 85 88 81 75 78 78 69 66 78 81 84 88 92 88 75 72 85
Wind dir         NW  W  W  W SW SW SW SW  W NW NW NW NW  N NW NW NW  W NW NW NW
Wind spd         11  9 11 11  9  9 10 11 17 25 31 29 25 19 12  9  9  6  9  9 10
Wind gust                                   36 43 43 35 29
Clouds           SC B2 B2 OV B2 SC FW SC B2 OV B2 B2 B2 B1 B2 B2 OV B2 OV OV OV
PoP 12hr                      0          10          40           5          20
QPF 12hr                      0           0        0.03           0           0
Snow 12hr                 00-00       00-00           T
Flurries                                  C                                   C
Snow                                         C                          S  S
Wind chill       -1  3 16 22 20 19 19 22 21 21 23 21 15 12 12 12 11 16 20 23 18
Min chill        -4    -1    19    17    19    19    15    10    11    11    17


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            18    32      21    37      22    36      24    41
Temp          22   22 30 25 22   21 32 30 26   22 35 29 26   25 39 31
Dewpt         18   18 20 21 20   20 25 26 25   22 24 24 22   22 25 25
PWind dir          NW     W      SW    SW      NW     W      SW     W
Wind char          GN    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    B2   B1 B1 B1 B1   B2 B2 B2 B2   B1 B1 B1 SC   SC SC B1
PoP 12hr           10     5       0    30      30     5      20     5
Flurries       C
Rain                                    C
Snow                                 S  C  C    S        S

$$
IAZ035-122200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
321 AM CST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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          28          41          22          34
Temp             15 16 29 35 32 30 28 29 32 36 41 39 34 29 26 23 22 26 32 34 30
Dewpt             8 10 15 22 24 25 25 24 25 28 29 27 24 22 21 20 19 21 22 23 23
RH               73 77 55 59 72 81 88 81 75 72 62 62 66 75 81 88 88 81 66 64 75
Wind dir         NW NW  W  W SW  S  S SW  W NW NW NW NW  N NW NW NW NW  W NW NW
Wind spd          9  9  9  9  5  6  9  9 11 20 27 27 23 17 11  8  6  5  8  8  6
Wind gust                                   31    40 33 28
Clouds           FW SC B2 B2 B2 SC FW SC SC OV B2 B2 B2 B1 B2 B2 B2 B2 OV OV OV
PoP 12hr                      0           5          30           0          20
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                                                      C
Rain                                         C
Snow                                         C                          S  S
Wind chill        3  4 20 28 26 23 19 20 23 25 30 28 22 17 15 14 14 19 25 27 23
Min chill        -1     2    24    19    19    22    22    14    14    14    23


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            20    35      23    40      25    39      25    44
Temp          23   22 32 28 25   23 34 31 28   25 35 30 27   25 41 35
Dewpt         19   19 21 20 20   21 26 27 26   23 26 24 23   23 27 25
PWind dir          NW     W       S    SW       N    NW      SW     W
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    OV   B1 B1 B1 B1   B1 B1 B2 B2   B1 B1 B1 SC   SC SC SC
PoP 12hr           10     5       0    20      20     5      10     5
Flurries       C
Rain                                    S
Snow                                    S  S    S

$$
IAZ094-122200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
321 AM CST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      36          29          48          25          36
Temp             19 20 32 36 32 30 29 30 31 37 47 46 38 33 29 26 25 28 34 36 33
Dewpt            11 12 12 19 23 25 26 25 23 25 28 29 27 25 23 22 22 23 23 24 24
RH               70 71 43 50 69 81 88 81 72 61 47 51 64 72 78 85 88 81 64 61 69
Wind dir         NW NW  W  W SW SW SW SW SW  W NW NW NW NW NW NW NW NW NW  W NW
Wind spd         12 11 11 11  6  6  9 11 13 18 26 26 25 14 12  9  8  6  8  9  5
Wind gust                                   29 36 39    26
Clouds           FW FW SC B1 B2 SC FW FW FW SC B2 B1 B2 B1 B1 SC B1 B2 OV OV OV
PoP 12hr                      0           0           5           0          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                                                                       S
Snow                                                                    S  S  S
Wind chill        7  9 23 28 26 23 20 20 21 27 39 37 27 23 19 17 16 21 27 29
Min chill         4     7    26    20    20    22    27    18    16    16    28


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            24    40      27    49      29    44      29    49
Temp          30   26 38 34 31   27 43 40 35   29 40 34 30   29 46 39
Dewpt         23   22 23 22 20   22 27 28 28   26 26 25 23   25 27 26
PWind dir          NW     W      SW    SW      NW    NW      SW    SW
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    OV   B1 SC SC SC   SC SC SC B1   B1 B1 SC SC   SC SC SC
PoP 12hr           20     0       0     0      20     5       5     0
Rain                                            S
Snow           S                                S

$$
IAZ017-122200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
321 AM CST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      29          27          36          20          30
Temp             12 13 24 29 27 29 28 28 28 33 36 34 28 27 24 22 20 24 29 30 27
Dewpt             7  7 11 16 20 23 24 24 25 27 28 26 23 22 20 19 19 20 20 22 21
RH               80 76 57 58 74 78 85 85 88 78 72 72 81 81 84 88 96 84 69 72 78
Wind dir         NW NW  W  W SW  S  S SW SW NW NW NW NW  N  N NW NW NW NW NW NW
Wind spd         12 11 10 10  6  8  9  9  9 18 27 27 24 18 12  9  9  8  8  9  8
Wind gust                                   28    40 35 28
Clouds           SC SC B1 OV OV SC SC B1 B1 OV B2 B2 B2 B1 B2 B2 B2 B2 B2 OV OV
PoP 12hr                      0          10          40           5          20
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                           C                          C
Rain                                            S
Snow                                      S  C     S                    S  S
Wind chill       -3  0 14 20 20 21 19 19 20 21 23 21 14 14 13 12  9 15 21 21 19
Min chill        -7    -3    16    18    18    19    14    11     9     9    19


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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            18    31      21    35      22    34      23    40
Temp          23   21 29 22 22   21 29 27 24   22 30 26 25   23 37 32
Dewpt         19   18 19 19 19   20 25 25 24   21 24 23 23   23 27 26
PWind dir          NW    NW      SW    SW       N    NW      SW     W
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    OV   B1 B1 B1 B1   B1 B2 B2 B2   B2 B1 B1 B1   SC SC B1
PoP 12hr           10     5       0    30      30     5      30     5
Flurries       C
Rain                                    C
Snow                                    C  C    S        C

$$
IAZ049-122200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
321 AM CST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      31          26          40          21          33
Temp             16 17 26 31 28 29 26 26 27 34 39 39 33 29 26 24 21 25 31 33 29
Dewpt             9  8  9 15 19 23 24 25 24 26 29 27 24 23 21 20 19 20 20 22 21
RH               73 67 48 51 68 78 92 96 88 72 67 62 69 78 81 84 92 81 63 63 72
Wind dir         NW NW NW  W SW  S  S  S SW  W NW NW NW NW  N NW NW NW NW NW NW
Wind spd         12 11 10 11  5  6  8  9  9 17 28 29 25 19 12  8  8  5  8  9  5
Wind gust                                   27    41 36 29
Clouds           FW FW SC B2 B2 B1 SC SC SC OV OV B2 B2 B1 B2 B1 B2 B2 B2 B2 B2
PoP 12hr                      0          10          30           5          10
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Snow                                         C                                S
Sprinkles                                       C
Wind chill        2  4 16 22 21 22 18 17 18 23 28 27 20 16 15 15 11 18 24 25 23
Min chill        -2     2    18    18    17    19    19    15    11    14    22


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

$$
IAZ086-122200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
321 AM CST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
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                      32          27          45          23          34
Temp             20 20 29 32 28 28 27 28 30 36 44 43 37 31 28 26 23 26 31 34 31
Dewpt            13 11  9 12 16 21 24 25 24 25 29 28 25 23 22 21 19 21 21 22 21
RH               74 67 42 43 60 75 88 88 78 64 55 55 61 72 78 81 84 81 66 61 66
Wind dir         NW NW NW  W  W SW  S  S SW  W NW NW NW NW NW NW NW NW NW  W  W
Wind spd         12 12 11 11  5  5  9 10 11 16 26 27 25 19 12  9  8  6  6  8  5
Wind gust                                   26    39 35 31
Clouds           FW FW FW SC B2 B1 SC SC SC SC OV B2 B2 B1 B1 SC B1 B1 B2 B2 B2
PoP 12hr                      0           5          10           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                                                                      C
Sprinkles                                       C
Wind chill        7  7 19 23 21 22 19 19 20 26 34 33 25 19 17 16 15 18 25 27 25
Min chill         7     5    20    18    17    20    23    16    14    14    25


Date               Fri 12/15/17  Sat 12/16/17  Sun 12/17/17  Mon 12/18/17
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    38      26    46      28    41      27    47
Temp          27   24 36 32 29   26 40 36 31   28 36 31 29   27 45 38
Dewpt         22   20 22 21 21   22 26 27 28   25 25 25 24   24 28 27
PWind dir          NW     W      SW     S      NW    NW      SW    SW
Wind char          LT    GN      LT    GN      GN    GN      LT    GN
Avg clouds    B2   B1 B1 B1 B1   SC SC B1 B1   B1 B1 SC SC   SC SC SC
PoP 12hr           10     5       0     0      20    10       5     5
Flurries       C
Snow                                            S

$$



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