Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
136 AM CDT Tue Apr 25 2017

IAZ060-261000-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
136 AM CDT Tue Apr 25 2017

Date           04/24/17      Tue 04/25/17            Wed 04/26/17            Thu
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                      54          71          50          52          38
Temp                      57 55 61 68 71 70 64 59 54 52 49 52 52 49 47 43 39 38
Dewpt                     40 42 48 51 53 55 54 53 48 45 43 43 42 39 39 38 36 35
RH                        53 61 62 54 53 59 70 80 80 77 80 71 69 68 74 82 89 89
Wind dir                   S  S SE SE SE  S  S NW NW NW NW NW NW NW NW NW NW NW
Wind spd                   6  6  8 10 10  5  4  6 11 12 11 11 12 12 11 11 10 10
Clouds                    B1 B2 OV B2 B2 OV OV OV OV OV OV OV OV OV B2 OV B2 B2
PoP 12hr                      0          40          60          40          40
QPF 12hr                      0        0.05        0.13        0.08        0.08
Snow 12hr                 00-00       00-00       00-00
Rain                                C  C
Rain shwrs                    S  C        C  C  L  C  C  C  C  C  C  C  C  C  S
Tstms                                     S
Wind chill                                                             37 33 31
Min chill                                                              36    31


Date           04/27  Fri 04/28/17  Sat 04/29/17  Sun 04/30/17  Mon 05/01/17
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          55      43    58      46    54      44    54      41    60
Temp          49 55   45 45 55 58   50 46 51 52   49 44 50 54   44 42 56 59
Dewpt         36 37   39 40 46 46   45 43 45 44   43 41 40 39   37 36 38 40
PWind dir        NW      NE     E       N    NE      NE     N      NW     W
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 B1   B1 B2 OV OV   B2 B2 OV OV   OV OV B2 B2   B2 B1 B1 B1
PoP 12hr         20      30    70      30    50      60    20      20    20
Rain shwrs     S          C  L  L    S  C  C  C    L  C  S  S    S  S  S
Tstms                           S

$$
IAZ039-261000-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
136 AM CDT Tue Apr 25 2017

Date           04/24/17      Tue 04/25/17            Wed 04/26/17            Thu
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                      53          70          53          56          37
Temp                      54 53 59 67 70 68 63 60 56 54 55 54 53 49 47 42 39 37
Dewpt                     35 38 46 51 52 53 53 54 52 50 48 47 44 42 42 39 37 35
RH                        48 57 62 56 53 59 70 81 86 86 77 77 71 77 83 89 92 92
Wind dir                   S SE  S SE SE SE SE SE  S  W NW NW NW NW NW NW NW NW
Wind spd                   8  8  8 10 12  6  5  5  5  6 11 10 11 12 10 10 10 11
Clouds                    B1 B2 B2 B2 B2 OV OV B2 OV OV OV OV OV OV OV OV B2 B2
PoP 12hr                      0          40          60          50          40
QPF 12hr                      0        0.07        0.11        0.12        0.18
Snow 12hr                 00-00       00-00       00-00
Rain                                C  C
Rain shwrs                       C        C  C  L  C  C  C  C  C  C  C  C  C  C
Tstms                                     S  S
Wind chill                                                             36 32 29
Min chill                                                              36    29


Date           04/27  Fri 04/28/17  Sat 04/29/17  Sun 04/30/17  Mon 05/01/17
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          52      39    57      43    52      42    55      40    57
Temp          46 52   43 41 55 56   48 43 50 50   45 43 52 54   44 41 53 56
Dewpt         35 36   37 37 43 44   43 39 42 42   42 40 40 40   37 36 38 38
PWind dir        NW       N     E      NE    NE      NE     N      NW    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 B1   B1 B2 B2 OV   OV B2 OV B2   OV OV OV B2   B2 B1 B1 B2
PoP 12hr         40      10    60      40    50      50    30      30    20
Rain shwrs     C             C  L    C  S  C  C    C  C  C  S    S  C  S  S

$$
IAZ048-261000-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
136 AM CDT Tue Apr 25 2017

Date           04/24/17      Tue 04/25/17            Wed 04/26/17            Thu
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                      52          68          49          51          37
Temp                      56 53 59 65 68 66 62 58 53 51 48 51 50 48 45 42 40 37
Dewpt                     41 43 48 51 52 54 54 52 47 45 43 43 41 39 39 37 35 34
RH                        57 69 67 60 57 65 75 80 80 80 83 74 71 71 79 82 82 89
Wind dir                   S SE SE SE SE SE SE NW NW NW NW NW NW NW NW NW NW NW
Wind spd                   6  5  6 10 10  5  4  6 11 13 12 12 12 13 11 11 10 10
Clouds                    B1 B2 OV B2 B2 OV OV B2 OV OV OV OV OV OV OV OV B2 B2
PoP 12hr                      0          40          50          40          30
QPF 12hr                      0        0.07        0.13        0.07        0.04
Snow 12hr                 00-00       00-00       00-00
Rain                                C  C
Rain shwrs                       C        C  C  C  C  C  C  C  C  S  S  C  C  S
Tstms                                     S
Wind chill                                                          39 36 33 30
Min chill                                                              34    29


Date           04/27  Fri 04/28/17  Sat 04/29/17  Sun 04/30/17  Mon 05/01/17
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          54      41    56      44    52      43    53      39    58
Temp          48 54   45 42 53 56   50 44 49 51   46 43 50 52   43 40 54 57
Dewpt         35 36   38 39 44 44   43 41 43 42   41 40 39 38   36 35 38 39
PWind dir        NW      NE    NE      NE    NE      NE     N      NW    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 B1   B1 B2 OV OV   B2 B2 OV OV   OV OV B2 B2   B2 B1 B1 B1
PoP 12hr         20      20    60      20    50      60    20      20    20
Rain shwrs     S          S  L  L    S  S  C  C    L  C  S  S    S  S  S

$$
IAZ004-261000-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
136 AM CDT Tue Apr 25 2017

Date           04/24/17      Tue 04/25/17            Wed 04/26/17            Thu
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                      47          58          40          44          33
Temp                      51 47 51 57 57 54 49 46 42 40 40 42 44 43 38 37 34 33
Dewpt                     43 42 45 47 48 48 45 42 40 38 35 36 34 33 34 32 31 30
RH                        74 83 80 69 72 80 86 86 93 92 82 79 68 67 85 82 89 89
Wind dir                  NW  N  N  N NE NE  N  N  N NW NW NW  N  N  N  N  N  N
Wind spd                   9 10 10 10 11 12 14 18 17 18 17 17 18 17 13 13 11 13
Wind gust                                         28
Clouds                    B1 B2 OV OV OV OV OV OV OV OV OV OV OV OV B2 OV B2 B2
PoP 12hr                      0          80          90          40          20
QPF 12hr                      0        0.33        0.31        0.07        0.02
Snow 12hr                 00-00       00-00       00-00
Rain                                D  D
Rain shwrs                       L        D  D  C  C  C  C  C  C  S  S  S
Snowshwrs                                                               S  S  S
Wind chill                                     39 34 31 31 34 36 35 30 28 25 23
Min chill                                      38    31    31    34    27    23


Date           04/27  Fri 04/28/17  Sat 04/29/17  Sun 04/30/17  Mon 05/01/17
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          49      35    52      37    50      37    49      36    55
Temp          43 49   41 36 49 50   42 37 47 48   42 37 47 48   40 37 51 53
Dewpt         31 32   33 33 36 36   36 33 35 35   36 34 36 35   33 32 35 36
PWind dir        NW      NE    NE      NE    NE      NE     N      NW    NW
Wind char        GN      GN    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    B2 B1   B1 B1 B2 OV   B2 B2 B2 OV   OV B2 B2 B2   B2 B1 B1 B1
PoP 12hr         20       5    40      20    30      50    40      20    20
Rain shwrs     S             S  C    S  S  S  C    C  C  C  C    S        S
Snowshwrs      S             S

$$
IAZ035-261000-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
136 AM CDT Tue Apr 25 2017

Date           04/24/17      Tue 04/25/17            Wed 04/26/17            Thu
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                      53          65          44          47          35
Temp                      57 53 58 63 65 63 58 53 48 46 44 46 47 45 42 39 36 35
Dewpt                     40 41 48 51 52 53 51 47 44 41 39 40 38 36 36 34 33 31
RH                        53 64 69 65 63 70 77 80 86 83 82 79 71 70 79 82 89 85
Wind dir                   S SE SE  E  E  E  N NW NW NW NW NW  N  N  N  N NW NW
Wind spd                   6  5  5  9 10  8  6 12 13 14 14 13 14 13 12 12 11 11
Wind gust                                            25 25
Clouds                    B1 B2 OV OV OV OV OV OV OV OV OV OV OV OV B2 OV B2 B2
PoP 12hr                      0          80          60          30          20
QPF 12hr                      0        0.20        0.10        0.08        0.02
Snow 12hr                 00-00       00-00       00-00
Rain                                L  D
Rain shwrs                       L        L  L  C  C  C  C  C  C  S  S  S  S  S
Snowshwrs                                                                  S  S
Wind chill                                              37       39 35 31 28 27
Min chill                                            39    37    39    31    26


Date           04/27  Fri 04/28/17  Sat 04/29/17  Sun 04/30/17  Mon 05/01/17
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          52      39    54      41    50      40    52      38    57
Temp          46 52   43 40 51 53   46 41 48 48   44 40 50 50   41 39 53 55
Dewpt         33 35   36 35 41 41   40 37 40 39   39 37 38 37   35 33 36 38
PWind dir        NW      NE    NE      NE    NE      NE     N      NW    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 B1   B1 B1 B2 OV   OV B2 B2 OV   OV B2 B2 B2   B2 B1 B1 B1
PoP 12hr         20      10    60      20    50      60    30      20    10
Rain shwrs     S             C  L    S  S  C  C    L  C  C  S    S  S
Snowshwrs      S

$$
IAZ094-261000-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
136 AM CDT Tue Apr 25 2017

Date           04/24/17      Tue 04/25/17            Wed 04/26/17            Thu
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                      54          71          50          53          39
Temp                      56 54 61 68 71 68 64 59 54 52 50 53 52 51 47 44 41 39
Dewpt                     41 43 47 51 53 56 56 53 49 46 43 44 42 40 40 38 36 35
RH                        57 66 60 54 53 65 75 80 83 80 77 71 69 66 76 79 82 85
Wind dir                   S SE SE SE  S  S  S NW NW NW NW NW NW  N NW NW NW NW
Wind spd                   8  6 10 12 10  5  5  6  9 13 13 12 12 13 10 11  9 11
Wind gust                       20
Clouds                    B1 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV B2 B2 B1 B1
PoP 12hr                     10          40          60          50          40
QPF 12hr                      0        0.01        0.20        0.14        0.16
Snow 12hr                 00-00       00-00       00-00
Rain                                S  S
Rain shwrs                    C  S        C  C  L  L  C  C  C  C  C  C  C  C  S
Tstms                                     S  S                 S
Wind chill                                                             38 34 32
Min chill                                                              38    32


Date           04/27  Fri 04/28/17  Sat 04/29/17  Sun 04/30/17  Mon 05/01/17
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          57      46    62      48    57      45    55      42    60
Temp          52 57   49 48 60 60   51 49 56 52   50 45 51 55   46 43 56 59
Dewpt         37 40   42 43 50 49   46 45 48 47   45 42 41 40   37 36 39 42
PWind dir        NW      SE     E       N    NE       N    NW      NW     W
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 B1   B2 OV OV B2   B2 B2 OV OV   B2 B2 B2 B2   B1 B1 B1 B1
PoP 12hr         20      50    60      40    50      60    20      10    10
Rain shwrs     S          C  L  C    S  C  C  C    L  C  S  S
Tstms                        S  S

$$
IAZ017-261000-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
136 AM CDT Tue Apr 25 2017

Date           04/24/17      Tue 04/25/17            Wed 04/26/17            Thu
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                      50          63          46          49          34
Temp                      53 50 56 61 63 62 58 55 52 49 46 46 47 44 41 38 35 34
Dewpt                     37 39 47 50 53 53 52 51 48 45 42 42 40 37 37 35 33 31
RH                        54 66 72 67 70 72 80 86 86 86 86 86 76 76 85 89 92 89
Wind dir                   S  S  S SE  E  E  E  N NW NW NW NW NW  N  N  N NW NW
Wind spd                   8  5  6  5  9  8  8  6 10 13 14 13 14 14 12 12 11 13
Clouds                    B1 B2 B2 OV B2 OV OV OV OV OV OV OV OV OV OV OV B2 B2
PoP 12hr                      0          80          70          40          30
QPF 12hr                      0        0.22        0.14        0.11        0.02
Snow 12hr                 00-00       00-00       00-00
Rain                                L  D
Rain shwrs                       C        L  L  C  C  C  C  C  C  S  S  C  C
Snowshwrs                                                                  C  C
Tstms                                     S
Wind chill                                                       37 34 30 27 25
Min chill                                                  38    36    30    25


Date           04/27  Fri 04/28/17  Sat 04/29/17  Sun 04/30/17  Mon 05/01/17
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          48      36    53      39    50      39    51      37    55
Temp          43 48   40 38 51 51   44 39 46 48   42 40 49 50   41 38 51 53
Dewpt         33 34   35 34 40 41   39 35 39 39   38 37 38 38   35 33 37 37
PWind dir        NW       N    NE      NE    NE      NE     N      NW    NW
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 B1   B1 B1 B2 OV   B2 B2 B2 OV   OV B2 B2 B2   B2 B2 B1 B2
PoP 12hr         30       5    60      30    40      60    30      30    20
Rain shwrs     C             C  L    C  S  C  C    L  C  C  C    C  S  S  S
Snowshwrs      C

$$
IAZ049-261000-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
136 AM CDT Tue Apr 25 2017

Date           04/24/17      Tue 04/25/17            Wed 04/26/17            Thu
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                      51          69          51          53          37
Temp                      53 52 59 65 69 67 63 59 55 53 51 52 52 48 44 42 38 37
Dewpt                     36 39 47 50 51 53 53 53 51 47 45 45 43 40 40 38 36 34
RH                        52 61 64 58 53 61 70 80 86 80 80 77 71 74 86 86 92 89
Wind dir                  SE SE SE SE SE SE SE SE  W NW NW NW NW NW NW NW NW NW
Wind spd                   8  8  8  9 13  6  5  4  8 10 13 13 13 13 11 12 11 12
Clouds                    B1 B2 OV B2 B2 OV OV OV OV OV OV OV OV OV OV OV B2 B2
PoP 12hr                      0          40          60          40          40
QPF 12hr                      0        0.06        0.16        0.06        0.14
Snow 12hr                 00-00       00-00       00-00
Rain                                C  C
Rain shwrs                       C        C  C  L  C  C  C  C  C  C  C  C  C  C
Tstms                                     S  S
Wind chill                                                          38 35 31 29
Min chill                                                              34    29


Date           04/27  Fri 04/28/17  Sat 04/29/17  Sun 04/30/17  Mon 05/01/17
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          53      40    57      43    52      42    54      39    57
Temp          47 53   44 41 54 56   48 43 50 50   46 42 50 53   43 40 53 56
Dewpt         35 36   38 38 44 45   43 40 42 43   42 41 40 40   36 35 37 39
PWind dir        NW      NE     E      NE    NE      NE     N      NW    NW
Wind char        GN      LT    GN      GN    BZ      GN    GN      GN    BZ
Avg clouds    B2 B1   B1 B2 B2 OV   OV B2 OV OV   OV OV OV B2   B2 B1 B1 B1
PoP 12hr         30      20    60      20    50      50    20      20    20
Rain shwrs     C          S  L  L    S  S  C  C    C  C  S  S    S  S  S

$$
IAZ086-261000-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
136 AM CDT Tue Apr 25 2017

Date           04/24/17      Tue 04/25/17            Wed 04/26/17            Thu
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                      51          75          55          57          40
Temp                      52 52 63 72 75 73 67 64 60 57 55 57 55 52 49 45 42 40
Dewpt                     36 39 46 50 52 54 55 55 55 51 48 49 47 45 44 41 39 36
RH                        54 61 54 46 45 51 65 73 84 80 77 75 74 77 83 86 89 85
Wind dir                   S  S SE SE  S SE SE  S SW  W  W NW NW NW NW NW NW NW
Wind spd                   9  9 10 14 14  8  5  5  6  9 12 11 11 12 11 11 11 11
Wind gust                             26
Clouds                    SC B1 OV B2 B2 OV OV OV OV OV OV OV OV OV OV OV B2 B2
PoP 12hr                      0          20          70          60          60
QPF 12hr                      0           0        0.26        0.25        0.33
Snow 12hr                 00-00       00-00       00-00
Rain                                S  S
Rain shwrs                       S        C  C  L  L  C  C  L  L  L  L  C  C  C
Tstms                                     S  S        S     S  S
Wind chill                                                             39 36 33
Min chill                                                              39    33


Date           04/27  Fri 04/28/17  Sat 04/29/17  Sun 04/30/17  Mon 05/01/17
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          56      45    64      49    58      45    58      42    60
Temp          49 56   48 47 60 63   53 49 57 52   50 45 55 57   47 43 56 59
Dewpt         37 39   40 42 49 50   48 46 49 47   46 45 43 42   39 37 39 42
PWind dir         W      SE     E      NE    NE      NE     N       W     W
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    B2 B1   B1 OV OV B2   B2 B2 OV OV   OV OV OV B2   B1 B1 B1 B1
PoP 12hr         40      30    60      30    50      50    30      20    20
Rain shwrs     C          C  L  C       C  C  C    C  C  C  S    S  S  S
Tstms                        S  S

$$



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