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Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
821 PM CDT Sun Apr 30 2017

IAZ060-011000-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
821 PM CDT Sun Apr 30 2017

Date           04/30/17      Mon 05/01/17            Tue 05/02/17            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      42          47          38          61          44
Temp                44 45 43 42 43 45 46 47 46 43 39 39 50 58 61 60 52 48 45 45
Dewpt               43 43 43 41 40 39 38 36 36 36 35 34 38 37 37 39 40 40 39 39
RH                  96 93100 96 89 79 73 65 68 76 85 82 63 45 41 46 63 74 79 79
Wind dir            NE  E SW  W NW  W NW NW  W  W  W  W NW NW NW NW  N  E  E SE
Wind spd             8  6  5  6 14 19 21 19 13 10  9 10 12 13 11  5  2  3  4  5
Wind gust                             32 31
Clouds              OV OV OV OV OV OV OV B2 SC SC SC FW FW SC SC B1 SC B1 SC B1
PoP 12hr                     70          50           5           0           5
QPF 12hr                   0.20        0.04           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 C  C  C
Rain shwrs                    C  C  S  S
Tstms
Obvis                F  F  F
Wind chill                      36 37 38       37 33 32
Min chill              38    36    33    36    36    31    34                39


Date           05/03  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17  Sun 05/07/17
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          64      43    64      45    67      47    72      50    72
Temp          62 59   47 45 62 61   49 47 63 65   51 49 68 70   54 53 69 70
Dewpt         44 44   43 41 45 44   42 41 42 43   40 41 45 48   45 44 49 52
PWind dir        SE      SW    NW       N     N      NW     W       S     S
Wind char        LT      LT    GN      LT    GN      LT    LT      LT    GN
Avg clouds    B1 B2   B2 B1 SC SC   FW CL FW FW   FW CL CL CL   FW FW FW FW
PoP 12hr         30      20    20       5     0       0     0       0     0
Rain shwrs        C    S     S  S
Tstms             S

$$
IAZ039-011000-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
821 PM CDT Sun Apr 30 2017

Date           04/30/17      Mon 05/01/17            Tue 05/02/17            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      40          46          38          57          39
Temp                42 43 42 40 45 46 45 43 41 41 39 39 46 53 57 55 47 42 40 40
Dewpt               41 41 41 40 42 41 38 36 35 34 34 34 36 36 37 37 37 37 37 36
RH                  96 93 96100 89 83 76 76 79 76 82 82 68 52 47 51 68 82 89 85
Wind dir            NE  E SE  S  W  W  W  W  W  W  W NW NW NW NW NW  N  E  E SE
Wind spd            12  8  5  5  9 13 19 18 16 16 13 13 16 19 16  9  3  4  5  5
Wind gust                                28 29 27 25 24 26    26
Clouds              OV OV OV OV OV OV OV OV OV B2 B1 B1 B1 SC SC SC FW SC SC SC
PoP 12hr                    100          60          20           5           5
QPF 12hr                   0.27        0.10           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 D  C  C
Rain shwrs                    L  L  C  C  S
Tstms
Obvis                F  F  F
Wind chill          35                37 35 33 33 31 31
Min chill              34    35    36    33    31    28    32          39    34


Date           05/03  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17  Sun 05/07/17
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          63      41    63      43    66      44    70      47    69
Temp          60 60   46 43 61 59   47 44 62 64   48 47 67 67   51 49 66 66
Dewpt         41 41   41 40 43 44   42 40 40 42   39 39 45 46   44 43 48 50
PWind dir         S       S     N       N     N      NW    NW      NE     S
Wind char        LT      LT    LT      LT    GN      LT    GN      LT    GN
Avg clouds    B1 B1   B2 B1 SC SC   FW CL FW FW   FW FW FW FW   FW FW FW FW
PoP 12hr         20      10    20       0     0       0     0       0     0
Rain shwrs        S          S  S

$$
IAZ048-011000-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
821 PM CDT Sun Apr 30 2017

Date           04/30/17      Mon 05/01/17            Tue 05/02/17            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      40          45          36          60          41
Temp                42 43 42 40 40 43 45 45 44 40 38 37 48 57 60 58 51 45 42 42
Dewpt               42 41 41 40 39 38 37 35 36 35 34 34 37 36 36 38 40 39 38 38
RH                 100 93 96100 96 82 73 68 73 82 85 89 65 45 41 47 66 79 86 86
Wind dir            NE NE  N  W NW NW NW NW NW  W  W  W NW NW NW NW  N  E  E SE
Wind spd             6  6  5  6 14 19 23 18 13 11 10 11 12 14 12  6  3  4  5  5
Wind gust                             34 31 24
Clouds              OV OV OV OV OV OV OV OV B1 SC SC SC FW SC FW SC SC B1 SC B1
PoP 12hr                     80          60           5           0           5
QPF 12hr                   0.27        0.08           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 L  C  L
Rain shwrs                    L  C  C  S
Tstms
Obvis                F  F  F
Wind chill                      32 35 36 37 37 33 31 29
Min chill              38    35    32    34    33    28    32                37


Date           05/03  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17  Sun 05/07/17
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          63      42    64      44    66      45    71      49    71
Temp          61 61   47 44 62 60   48 45 62 64   49 47 67 68   52 52 68 69
Dewpt         43 43   43 41 46 43   41 41 42 43   40 41 46 48   45 45 48 52
PWind dir         S      SW    NW       N     N      NW     W       S     S
Wind char        LT      LT    GN      LT    GN      LT    LT      LT    GN
Avg clouds    B1 B2   B2 SC SC SC   FW CL FW FW   FW FW CL CL   FW FW FW FW
PoP 12hr         30      20    20       0     0       0     0       0     0
Rain shwrs        C    S     S  S
Tstms             S    S

$$
IAZ004-011000-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
821 PM CDT Sun Apr 30 2017

Date           04/30/17      Mon 05/01/17            Tue 05/02/17            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      35          41          34          57          39
Temp                37 37 36 35 37 38 40 41 39 36 35 35 45 54 57 56 47 42 40 40
Dewpt               36 35 34 34 35 34 35 35 35 33 32 32 35 34 35 36 38 37 38 37
RH                  96 92 92 96 92 85 82 79 85 89 89 89 68 46 43 47 71 82 92 89
Wind dir            NE  N  N  N  N NW NW NW NW NW NW NW NW NW NW NW  S  S  S  S
Wind spd            18 18 17 16 18 23 24 20 14 11 10 11 12 13 10  6  2  4  4  5
Wind gust                          33 35 31
Clouds              OV OV OV OV OV OV OV OV B2 B1 B1 SC SC SC SC SC SC B1 B1 B1
PoP 12hr                    100          60          10           0          10
QPF 12hr                   0.65        0.09           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 D  L  D
Rain shwrs                    L  L  C  C                                      C
Snow                       D
Snowshwrs                     C
Obvis                F  F  F
Wind chill          27 27 26 25 27 27 30 32 31 28 27 27 39
Min chill              26    25    25    27    27    25    29          39    35


Date           05/03  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17  Sun 05/07/17
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          62      40    63      42    65      44    70      47    70
Temp          60 58   45 42 60 60   47 43 61 62   48 46 67 66   51 49 66 68
Dewpt         42 42   41 40 42 40   39 39 39 41   40 40 45 46   43 44 47 50
PWind dir        SW       W     N       N     N       W    SW       S     S
Wind char        LT      LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B1 B1   B1 SC SC SC   FW FW FW FW   FW CL CL CL   CL FW FW FW
PoP 12hr         50      20    10       0     0       0     0       0     0
Rain shwrs     C  C    S
Tstms             S    S

$$
IAZ035-011000-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
821 PM CDT Sun Apr 30 2017

Date           04/30/17      Mon 05/01/17            Tue 05/02/17            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      37          44          35          60          41
Temp                40 40 39 37 38 40 43 44 42 38 37 36 46 56 60 58 49 45 43 42
Dewpt               38 38 37 36 37 37 36 35 35 33 32 31 36 36 36 36 38 38 37 37
RH                  92 92 92 96 96 89 76 70 76 82 82 82 68 47 41 44 66 76 79 82
Wind dir            NE NE NE  N NW NW NW NW NW NW NW NW NW NW NW NW NE  E SE SE
Wind spd            16 11 10 10 13 17 20 18 13 10 10 11 12 13 11  6  3  4  5  6
Wind gust                          27 32 29 24
Clouds              OV OV OV OV OV OV OV OV B1 SC SC SC SC SC SC SC SC B1 B1 B1
PoP 12hr                    100          70          10           0           5
QPF 12hr                   0.40        0.11           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 D  L  L
Rain shwrs                    L  C  C  S                                      S
Tstms
Obvis                F  F  F
Wind chill          32 33 32 30 30 31 34 36 35 31 30 28
Min chill              31    30    29    31    31    27    31                36


Date           05/03  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17  Sun 05/07/17
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          63      41    64      44    66      45    70      49    71
Temp          61 60   46 43 62 60   49 45 62 64   49 47 66 67   53 51 67 69
Dewpt         43 43   42 39 45 42   40 39 41 41   39 40 45 47   44 44 48 51
PWind dir         S      SW     N       N     N       W     W       S     S
Wind char        LT      LT    GN      GN    GN      LT    LT      LT    GN
Avg clouds    B1 B2   B2 SC SC SC   FW FW FW FW   CL CL CL CL   FW FW FW FW
PoP 12hr         40      20    20       0     0       0     0       0     0
Rain shwrs     S  C    S        S
Tstms             S    S

$$
IAZ094-011000-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
821 PM CDT Sun Apr 30 2017

Date           04/30/17      Mon 05/01/17            Tue 05/02/17            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      40          49          40          62          44
Temp                47 46 44 40 41 43 47 49 45 42 41 41 51 59 62 60 52 49 46 45
Dewpt               46 44 42 40 39 38 38 37 38 37 37 36 40 40 40 42 40 41 40 40
RH                  96 93 93100 92 82 71 63 76 82 85 82 66 49 44 51 63 74 79 82
Wind dir             E  S SW  W  W  W  W NW  W  W  W  W NW NW NW NW  W SE  E  E
Wind spd             4  5  5  9 17 20 24 19 11  8  8 10 11 12  9  5  2  2  3  4
Wind gust                          31 34 29
Clouds              B2 OV OV OV OV OV OV B1 FW SC FW FW SC SC SC B1 B1 B2 B1 B2
PoP 12hr                     60          40           0           0           5
QPF 12hr                   0.11           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 C  L  C
Rain shwrs                    C  C
Tstms
Obvis                F  F  F
Wind chill                      32 35 39    39       35
Min chill                    34    32    35    37    34    37


Date           05/03  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17  Sun 05/07/17
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          63      42    63      45    67      46    71      49    72
Temp          62 59   47 44 61 60   49 47 64 64   50 48 67 68   53 51 69 69
Dewpt         45 44   43 41 46 44   42 41 41 42   41 41 46 49   45 45 51 52
PWind dir        SE      NW     N       N     N      NW     W       S     S
Wind char        LT      LT    GN      GN    GN      LT    LT      LT    GN
Avg clouds    B2 B2   B2 B1 SC SC   FW CL FW FW   CL CL CL CL   CL FW FW FW
PoP 12hr         40      20    20       5     0       0     0       0     0
Rain shwrs        C    S     S  S
Tstms             S    S

$$
IAZ017-011000-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
821 PM CDT Sun Apr 30 2017

Date           04/30/17      Mon 05/01/17            Tue 05/02/17            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      38          42          35          56          38
Temp                39 39 39 38 40 42 42 41 40 38 35 36 45 53 56 55 46 42 40 39
Dewpt               39 38 38 38 39 38 37 35 35 34 33 33 36 36 36 36 38 37 37 36
RH                 100 96 96100 96 86 82 79 82 85 92 89 70 52 47 49 73 82 89 89
Wind dir            NE NE NE  N NW NW NW NW NW NW NW NW NW NW NW NW  N  E SE SE
Wind spd            13 11 11  9 12 17 21 18 17 16 14 14 16 18 14  8  3  4  5  6
Wind gust                                31 28 26 25
Clouds              OV OV OV OV OV OV OV OV OV B2 B2 B1 SC SC SC SC SC SC SC B1
PoP 12hr                    100          70          20           5           5
QPF 12hr                   0.45        0.14           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 D  L  L
Rain shwrs                    L  L  C  C  S  S                                S
Tstms
Obvis                F  F  F
Wind chill          31 32 32 31 33 33 32 32 31 29 26 27 38
Min chill              31    30    31    31    29    25    29          39    33


Date           05/03  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17  Sun 05/07/17
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          61      40    61      43    64      44    68      46    68
Temp          58 57   44 42 59 58   47 44 60 62   48 47 65 65   50 48 65 66
Dewpt         41 42   42 41 45 42   41 39 40 41   39 39 45 47   43 43 48 49
PWind dir         S      SW    NW       N     N      NW     W       S     S
Wind char        LT      LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    B1 B1   B2 B1 SC SC   FW FW FW FW   FW FW FW FW   FW FW FW FW
PoP 12hr         30      10    20       0     0       0     0       0     0
Rain shwrs     S  C             S
Tstms             S

$$
IAZ049-011000-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
821 PM CDT Sun Apr 30 2017

Date           04/30/17      Mon 05/01/17            Tue 05/02/17            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      40          45          36          59          39
Temp                42 43 42 40 45 45 45 45 42 41 37 37 47 55 59 57 48 43 40 40
Dewpt               42 42 41 40 41 39 37 35 35 35 34 33 36 36 36 37 37 37 37 36
RH                 100 96 96100 86 79 73 68 76 79 89 85 65 49 42 47 65 79 89 85
Wind dir            NE  E SE SW  W  W  W  W  W  W  W  W NW NW NW NW  N  E  E SE
Wind spd            14  9  8  6 12 17 23 19 16 14 12 12 14 18 14  8  3  5  6  6
Wind gust                                32 28 25       25
Clouds              OV OV OV OV OV OV OV OV B2 B1 SC SC SC SC SC SC SC SC SC B1
PoP 12hr                     90          60          10           0           5
QPF 12hr                   0.24        0.08           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 D  C  C
Rain shwrs                    C  L  C  C
Tstms
Obvis                F  F  F
Wind chill          35          39 37 36 37 34 33 29 29
Min chill              34    35    36    35    32    28    32          39    34


Date           05/03  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17  Sun 05/07/17
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          62      41    63      43    66      44    70      47    70
Temp          61 60   46 43 61 59   48 44 62 63   49 46 67 67   51 50 67 67
Dewpt         41 42   42 40 45 44   41 40 41 42   39 39 45 47   45 44 48 50
PWind dir         S       S     N       N     N      NW    NW      NE     S
Wind char        GN      LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    B1 B1   B2 B1 SC SC   FW CL FW FW   FW FW FW FW   FW FW FW FW
PoP 12hr         20      20    20       0     0       0     0       0     0
Rain shwrs        S    S     S  S

$$
IAZ086-011000-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
821 PM CDT Sun Apr 30 2017

Date           04/30/17      Mon 05/01/17            Tue 05/02/17            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      41          48          39          61          42
Temp                47 46 44 41 42 45 47 47 44 42 40 40 51 59 61 60 50 46 44 43
Dewpt               46 44 42 41 42 41 39 37 36 36 36 35 38 39 39 40 39 39 39 38
RH                  96 93 93100100 86 74 68 73 79 85 82 61 47 44 47 66 76 82 82
Wind dir             N  S  S  S  W  W  W  W  W  W  W  W NW NW NW NW NW NE  E SE
Wind spd             5  6  8  8 11 19 21 19 16 14 12 12 13 17 13  6  3  3  4  6
Wind gust                                32 26          25
Clouds              OV OV OV OV OV OV OV OV B1 SC SC FW FW SC SC SC SC B1 SC B1
PoP 12hr                     60          50           5           0           5
QPF 12hr                   0.09        0.04           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 C  S  C
Rain shwrs                    C  C  C  S
Tstms
Obvis                F  F  F
Wind chill                      36 37 39    36 34 33 33
Min chill                    35    35    37    34    31    35                38


Date           05/03  Thu 05/04/17  Fri 05/05/17  Sat 05/06/17  Sun 05/07/17
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          63      42    63      44    67      45    71      49    71
Temp          61 61   47 44 61 60   49 46 64 64   50 47 68 68   53 51 69 68
Dewpt         42 43   41 41 43 44   42 41 41 42   40 40 45 47   44 44 48 51
PWind dir        SE       E     N       N     N      NW    NW       E     S
Wind char        LT      LT    LT      GN    GN      LT    GN      LT    GN
Avg clouds    B1 B2   B2 SC SC SC   SC FW FW FW   FW CL CL FW   FW FW FW FW
PoP 12hr         20       5    20       5     0       0     0       0     0
Rain shwrs        S             S

$$



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