Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
1021 AM CDT Tue Aug 15 2017

IAZ060-152200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
1021 AM CDT Tue Aug 15 2017

Date             Tue 08/15/17            Wed 08/16/17            Thu 08/17/17
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      86          69          82          67          82
Temp                   80 84 83 75 72 70 69 75 81 82 80 73 70 68 67 73 79 82 79
Dewpt                  68 70 69 68 67 68 68 70 71 73 73 70 69 67 66 67 65 64 63
RH                     67 63 63 79 84 93 97 84 72 74 79 90 97 97 97 81 62 55 58
Wind dir               SE SE  E  E SE SE SE  S  S  S SW SW  W NW NW NW NW NW NW
Wind spd                6  5  6  5  6  6  6  8 10  8  6  3  4  5  6  8 10 11  9
Clouds                 B2 B2 B1 B1 B1 B1 OV OV OV B2 OV B2 B2 B2 B2 SC SC SC SC
PoP 12hr                     20          50          70          70          10
QPF 12hr                   0.02        0.03        0.49        0.27           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  C  L  L  L  L  L  L  C  C
Tstms                               S  C  L  L  L  L  L  L  C  C
Heat index                                        87
Max heat               84    89    84          85    87                82    84


Date          Fri 08/18/17  Sat 08/19/17  Sun 08/20/17  Mon 08/21/17
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          61    85      64    85      64    87      67    87
Temp          66 62 82 82   68 66 81 82   69 66 84 84   71 69 85 84
Dewpt         62 59 63 64   64 63 65 65   63 62 65 65   65 64 68 68
PWind dir        NW     W       S     W       E    SE       S     S
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW SC SC   B1 B1 SC FW   FW FW FW FW   FW SC SC SC
PoP 12hr          5     5      40    10       0     5      10    20
Rain shwrs                   C  S                                 S
Tstms                        C  S                                 S

$$
IAZ039-152200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
1021 AM CDT Tue Aug 15 2017

Date             Tue 08/15/17            Wed 08/16/17            Thu 08/17/17
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      80          66          80          65          79
Temp                   77 79 77 70 68 67 66 73 79 79 76 72 69 67 65 71 78 79 76
Dewpt                  65 65 66 64 64 65 65 68 71 72 71 69 68 67 65 67 66 65 64
RH                     67 62 69 81 87 93 97 84 77 79 85 90 97100100 87 67 62 66
Wind dir                E  E  E  E SE SE SE SE SE  S  S  S SW  W  W NW NW NW NW
Wind spd                5  5  5  6  9  9  8  9 10 10  9  5  5  5  5  8 10 12  9
Wind gust                                                                 23
Clouds                 B2 B2 B1 B1 B2 B1 B2 B2 OV OV OV OV OV B2 B2 B1 B1 SC SC
PoP 12hr                      0          40          70          70          10
QPF 12hr                      0        0.03        0.36        0.51           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  C  C  C  L  L  L  L  C  C  S  S
Tstms                               S  C  C  C  L  L  L  L  C  C  S  S


Date          Fri 08/18/17  Sat 08/19/17  Sun 08/20/17  Mon 08/21/17
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          59    81      61    81      60    84      64    84
Temp          64 60 78 77   65 63 79 78   65 62 81 81   69 66 82 81
Dewpt         61 59 63 64   62 61 65 65   62 61 65 66   64 63 68 68
PWind dir        NW    NW      SW    SW       E    SE       S     S
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC FW SC SC   B1 B1 B1 SC   FW FW FW FW   FW SC SC SC
PoP 12hr          5    10      40    20       5     0      10    10
Rain shwrs                   C  C  S  S
Tstms                        C  C  S  S

$$
IAZ048-152200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
1021 AM CDT Tue Aug 15 2017

Date             Tue 08/15/17            Wed 08/16/17            Thu 08/17/17
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      82          68          80          65          81
Temp                   77 80 80 72 71 69 69 74 78 80 76 71 68 66 65 70 79 81 78
Dewpt                  67 68 68 66 65 67 68 70 71 72 72 70 68 66 65 66 65 63 64
RH                     71 67 67 81 81 93 97 87 79 77 87 97100100100 87 62 54 62
Wind dir                E SE  E  E SE SE SE SE  S  S SW SW  W NW NW NW NW NW NW
Wind spd                6  5  6  5  6  6  6  8 10  8  5  4  4  6  6  8 11 11  9
Clouds                 B2 B2 B1 B1 B2 B1 OV OV OV B2 OV B2 B2 B2 B2 B1 SC SC FW
PoP 12hr                     10          50          70          60          10
QPF 12hr                      0        0.08        0.56        0.21           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  C  L  L  L  L  L  L  C  C
Tstms                               S  C  L  L  L  L  L  L  C  C


Date          Fri 08/18/17  Sat 08/19/17  Sun 08/20/17  Mon 08/21/17
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          58    82      61    82      61    85      64    85
Temp          64 59 79 78   65 62 79 79   67 63 82 82   70 65 83 81
Dewpt         60 58 63 64   63 62 65 65   63 61 65 66   64 64 68 69
PWind dir        NW     W       S    NW       E    SE       S    SE
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW SC SC   B1 SC SC FW   FW FW FW FW   FW SC SC SC
PoP 12hr          5    10      40    10       0     5      20    20
Rain shwrs                   C  C                           S     S
Tstms                        C  C                           S     S

$$
IAZ004-152200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
1021 AM CDT Tue Aug 15 2017

Date             Tue 08/15/17            Wed 08/16/17            Thu 08/17/17
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      77          65          75          62          77
Temp                   71 74 75 68 67 66 66 70 74 75 74 68 65 63 62 68 75 77 74
Dewpt                  64 65 66 65 65 65 64 68 70 69 69 67 64 63 62 62 62 61 62
RH                     79 74 74 90 93 97 93 93 87 82 84 97 97100100 81 64 58 66
Wind dir               SE SE SE SE SE SE SE SE  S SW  W NW NW NW NW NW NW NW NW
Wind spd                9  9  9  8  8  9  8  9  9  8  5  5  6  8  8 11 12 12  9
Clouds                 B2 B2 B2 B2 OV B2 OV OV OV OV B2 B2 B2 B2 B1 SC SC FW FW
PoP 12hr                     20          70          70          40          10
QPF 12hr                   0.02        0.38        0.72        0.06           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  S  C  C  L  L  L  L  L  L  C  C
Tstms                   S  S  C  C  L  L  L  L  L  L  C  C


Date          Fri 08/18/17  Sat 08/19/17  Sun 08/20/17  Mon 08/21/17
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          57    79      59    79      60    83      63    82
Temp          61 58 76 76   63 61 77 76   64 62 80 80   69 64 80 79
Dewpt         58 57 62 63   60 59 63 64   60 60 65 66   64 63 68 68
PWind dir        NW    SW       W    NE      SE     S       S    SW
Wind char        LT    LT      LT    LT      LT    GN      GN    GN
Avg clouds    FW FW SC B1   B1 SC SC FW   FW FW FW SC   SC SC SC SC
PoP 12hr          0    20      40     5       5     5      30    20
Rain shwrs              S    C  S                        S  C  S  S
Tstms                   S    C  S                        S  C  S  S

$$
IAZ035-152200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
1021 AM CDT Tue Aug 15 2017

Date             Tue 08/15/17            Wed 08/16/17            Thu 08/17/17
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      81          67          78          63          80
Temp                   74 77 79 71 70 68 67 73 77 78 77 71 67 65 63 69 75 80 77
Dewpt                  65 66 67 66 65 66 66 69 70 71 71 68 66 64 63 65 63 62 62
RH                     74 69 67 84 84 93 97 87 79 79 82 90 97 97100 87 66 54 60
Wind dir               SE SE SE  E SE SE SE SE  S SW SW  W NW NW NW NW NW NW NW
Wind spd                9  6  8  8  8  6  8 10 10  8  6  4  5  6  5  9 11 12  9
Clouds                 B2 B2 B1 B2 B2 B2 OV OV OV OV OV B2 B2 B2 B2 B1 SC FW FW
PoP 12hr                     20          60          70          50          10
QPF 12hr                   0.03        0.21        0.61        0.09           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  S     S  C  C  L  L  L  L  C  C  S  S
Tstms                   S  S     S  C  C  L  L  L  L  C  C  S  S


Date          Fri 08/18/17  Sat 08/19/17  Sun 08/20/17  Mon 08/21/17
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          58    82      60    81      61    84      64    84
Temp          63 59 79 77   64 62 79 78   66 63 82 81   69 66 82 81
Dewpt         59 57 63 64   61 60 64 64   61 60 65 66   64 63 68 68
PWind dir        NW     W      SW    NW       E     S       S     S
Wind char        LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    FW FW SC B1   B1 SC SC FW   FW FW FW FW   SC SC SC SC
PoP 12hr          5    10      40    10       0     5      20    20
Rain shwrs                   C  S                        S  S  S  S
Tstms                        C  S                        S  S  S  S

$$
IAZ094-152200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
1021 AM CDT Tue Aug 15 2017

Date             Tue 08/15/17            Wed 08/16/17            Thu 08/17/17
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      86          70          83          67          83
Temp                   82 85 84 76 73 72 70 75 81 83 80 74 71 69 67 73 80 83 80
Dewpt                  71 70 69 69 68 68 69 70 72 73 73 72 70 68 67 68 65 64 63
RH                     69 61 61 79 84 87 97 84 74 72 79 93 97 97100 84 60 53 56
Wind dir                S  S SE SE SE SE  S  S  S  S  S SW  W  W NW NW NW NW NW
Wind spd                5  6  6  4  5  5  6  8 10 10  9  6  6  6  6  9 10 11 10
Clouds                 B2 B1 B1 FW SC B1 OV OV OV B2 OV B2 B2 B2 B2 SC SC FW FW
PoP 12hr                     20          60          70          60          10
QPF 12hr                   0.07        0.04        0.52        0.35           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S           C  L  L  L  L  L  L  C  C
Tstms                      S           C  L  L  L  L  L  L  C  C
Heat index             87 90                      89 85
Max heat               88    90    84          87    89                83    85


Date          Fri 08/18/17  Sat 08/19/17  Sun 08/20/17  Mon 08/21/17
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          61    84      64    85      64    86      66    86
Temp          66 62 81 80   68 65 82 82   69 66 83 83   71 68 84 84
Dewpt         62 60 63 64   64 63 66 65   64 63 65 66   65 64 69 69
PWind dir        NW     W      SE     W       S     S       S     S
Wind char        LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    FW FW SC SC   B1 B1 SC FW   FW FW FW FW   FW SC SC SC
PoP 12hr          5     5      40    10       0     0       5    10
Rain shwrs                   C  C
Tstms                        C  C

$$
IAZ017-152200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
1021 AM CDT Tue Aug 15 2017

Date             Tue 08/15/17            Wed 08/16/17            Thu 08/17/17
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      78          65          76          63          77
Temp                   74 76 76 68 66 66 66 71 76 75 74 69 67 65 63 69 75 77 76
Dewpt                  64 64 65 64 63 65 65 68 70 71 70 68 66 65 63 65 64 63 63
RH                     71 66 69 87 90 97 97 90 82 87 87 97 97100100 87 69 62 64
Wind dir                E SE  E  E SE SE SE SE SE  S SW SW  W  W NW NW NW NW NW
Wind spd                8  8  6  6  8  9  9 10 11  9  8  5  5  8  9 10 12 12 10
Clouds                 B2 B2 B1 B2 OV B2 B2 OV OV OV OV OV B2 B2 B2 B1 B1 SC SC
PoP 12hr                      5          50          80          50          10
QPF 12hr                      0        0.13        0.66        0.14           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          C  C  L  L  D  D  C  C  S  S
Tstms                               C  C  L  L  D  D  C  C  S  S


Date          Fri 08/18/17  Sat 08/19/17  Sun 08/20/17  Mon 08/21/17
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          58    79      59    80      59    82      63    83
Temp          62 59 77 75   62 61 78 77   63 61 80 79   67 64 81 80
Dewpt         59 58 62 64   61 60 64 65   61 60 65 66   64 63 68 68
PWind dir        NW     W      SW     N      SE     S       S     S
Wind char        LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    SC FW SC SC   B1 B1 SC SC   FW FW FW FW   FW SC SC SC
PoP 12hr          5    10      30    10       5     5      20    20
Rain shwrs                   C  S                           S  S  S
Tstms                        C  S                           S  S  S

$$
IAZ049-152200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
1021 AM CDT Tue Aug 15 2017

Date             Tue 08/15/17            Wed 08/16/17            Thu 08/17/17
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      81          67          79          64          79
Temp                   77 79 79 71 70 68 68 74 78 79 75 70 67 66 64 71 78 79 76
Dewpt                  66 66 66 64 64 66 66 70 71 72 72 70 67 66 64 67 65 64 64
RH                     69 64 64 79 81 93 93 87 79 79 90100100100100 87 64 60 66
Wind dir                E  E  E  E SE SE SE SE  S  S  S  S  W  W NW NW NW NW NW
Wind spd                5  5  5  6  9  9  8  9 10 10  6  4  4  6  6  8 11 12  9
Clouds                 B1 B2 B1 B1 B2 B1 B2 B2 OV B2 OV OV B2 B2 B2 B1 SC SC SC
PoP 12hr                      5          40          70          70          10
QPF 12hr                      0        0.04        0.53        0.34           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  C  C  C  L  L  L  L  C  C
Tstms                               S  C  C  C  L  L  L  L  C  C


Date          Fri 08/18/17  Sat 08/19/17  Sun 08/20/17  Mon 08/21/17
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          58    81      61    81      60    84      63    85
Temp          63 59 78 77   65 63 79 78   65 62 82 80   68 65 83 81
Dewpt         60 58 62 64   62 61 65 65   62 60 65 66   64 63 67 68
PWind dir        NW    NW      SW     W       E    SE       S     S
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW SC SC   B1 B1 B1 SC   FW FW FW FW   FW SC SC SC
PoP 12hr          5     5      40    20       0     0       5    10
Rain shwrs                   C  C  S
Tstms                        C  C  S

$$
IAZ086-152200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
1021 AM CDT Tue Aug 15 2017

Date             Tue 08/15/17            Wed 08/16/17            Thu 08/17/17
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
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                      87          70          86          68          84
Temp                   82 85 84 76 73 72 71 79 85 85 81 74 72 69 68 74 81 84 79
Dewpt                  69 69 68 68 67 69 67 71 71 72 72 71 70 69 68 69 66 65 64
RH                     65 59 59 76 81 90 87 77 63 65 74 90 93100100 84 60 53 60
Wind dir                E SE  E  E SE SE SE  S  S  S  S  S SW  W  W NW NW NW NW
Wind spd                5  4  4  5  8  6  6  9 11 10  8  5  5  5  6  8 11 12 10
Clouds                 B1 B1 B1 SC B1 B1 B2 B2 B2 B2 B2 OV OV B2 B2 B1 SC SC SC
PoP 12hr                     20          30          60          70          20
QPF 12hr                   0.02        0.02        0.23        0.55        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S           S  C  C  L  L  L  L  C  C  S  S
Tstms                      S           S  C  C  L  L  L  L  C  C  S  S
Heat index                                     90 91
Max heat               87    90    85          91    92                84    86


Date          Fri 08/18/17  Sat 08/19/17  Sun 08/20/17  Mon 08/21/17
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          61    84      63    85      63    87      65    88
Temp          66 62 81 80   66 65 83 82   68 65 84 83   70 67 86 83
Dewpt         62 60 62 63   63 62 65 65   63 62 65 66   64 64 67 67
PWind dir        NW    NW      SW     W       E    SE      SE     S
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW SC   B1 B1 B1 SC   FW FW FW FW   FW SC SC SC
PoP 12hr          5     5      40    20       0     0       5    10
Rain shwrs                   S  C  S  S
Tstms                        S  C  S  S

$$



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