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Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
622 PM CDT Fri Jul 21 2017

IAZ060-221000-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
622 PM CDT Fri Jul 21 2017

Date           07/21/17      Sat 07/22/17            Sun 07/23/17            Mon
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                      76          95          72          93          64
Temp             94 83 80 76 76 82 91 94 92 82 77 75 73 84 91 92 89 75 70 65 65
Dewpt            76 74 72 71 71 74 75 75 74 72 71 69 67 69 67 64 64 64 64 61 60
RH               56 74 77 85 85 77 60 54 56 72 82 82 81 61 45 40 44 69 81 87 84
Wind dir          S  S  S  W  W NW NW  N  N  N  W SW  W  W NW NW  N  N NE NE NE
Wind spd         10  9  9  9  6  8  8  8  6  3  3  3  4  5  8  9  8  6  5  3  5
Clouds           B1 B1 SC SC SC SC B1 SC SC SC SC SC SC FW FW FW FW CL FW FW FW
PoP 12hr                     30           5           5           5           0
QPF 12hr                   0.10           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  S  S
Tstms                   S
Heat index      107 89          88102106101
Max heat        111    99    84   103   107    97          96    96    87
Excess Heat       W  W  W  W  W  W  W  W  W
Svr Tstorm        A  A


Date           07/24  Tue 07/25/17  Wed 07/26/17  Thu 07/27/17  Fri 07/28/17
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          85      66    87      71    90      73    91      71    90
Temp          82 83   71 69 84 85   74 72 86 86   76 74 83 82   75 71 84 84
Dewpt         61 61   62 62 67 68   68 66 71 71   71 69 71 72   70 68 70 69
PWind dir         E       E    SE       S    SE       E    SE      SE     N
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW FW SC FW   FW SC SC B1   B1 B2 B2 B1   B1 B1 SC SC
PoP 12hr          0      10    10      20    20      40    30      30    10
Rain shwrs                      S       S     S    S  C  C  C    C  C
Tstms                           S       S     S    S  C  C  C    C  C

$$
IAZ039-221000-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
622 PM CDT Fri Jul 21 2017

Date           07/21/17      Sat 07/22/17            Sun 07/23/17            Mon
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                      71          87          66          85          59
Temp             77 74 73 71 71 76 83 86 84 76 72 68 67 79 85 85 81 70 66 60 60
Dewpt            74 73 73 71 70 74 76 76 74 72 69 66 65 70 68 66 65 64 61 58 58
RH               90 97100100 97 94 80 72 72 87 90 93 93 74 57 53 58 81 84 93 93
Wind dir          E SE  S SW NW NW NW NW NW NW  W  W  W NW NW NW  N  N  N  N NE
Wind spd         10  6  5  5  4  6  6  8  6  4  3  3  4  5  9 10  9  5  4  4  4
Clouds           OV OV B2 B1 SC B1 SC B1 SC FW FW SC SC SC FW FW FW FW FW FW FW
PoP 12hr                     60          10          10           5           0
QPF 12hr                   1.36           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        L  L  C  S
Tstms             C  C  C  S
Obvis                        PF
Heat index                         91 96 92
Max heat         86                93    98    87          89    89
Flash Flood       A  A  A  A  A
Svr Tstorm        A  A


Date           07/24  Tue 07/25/17  Wed 07/26/17  Thu 07/27/17  Fri 07/28/17
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          79      61    83      66    86      67    82      66    84
Temp          77 78   66 64 80 81   70 68 83 81   71 68 75 76   69 66 82 80
Dewpt         61 61   60 59 66 67   66 65 69 70   67 66 70 70   67 65 69 67
PWind dir        NE      SE    SE       S    SE       E    SE       E     N
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW FW SC SC   SC B1 B1 B1   B2 B2 B2 B2   B1 SC SC SC
PoP 12hr          0       0     5      20     5      50    50      40    10
Rain shwrs                           S  S          C  C  C  C    C  C
Tstms                                S  S          C  C  C  C    C  C

$$
IAZ048-221000-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
622 PM CDT Fri Jul 21 2017

Date           07/21/17      Sat 07/22/17            Sun 07/23/17            Mon
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                      72          90          69          88          62
Temp             88 77 76 74 73 79 86 89 87 77 74 70 70 80 87 88 84 72 67 63 63
Dewpt            77 75 73 72 71 74 75 75 73 72 70 68 66 69 67 64 64 63 62 60 60
RH               70 94 90 93 93 85 70 64 63 85 87 93 87 69 52 45 51 73 84 90 90
Wind dir         SE SE  S  W  W NW NW  N  N NW  W  W  W NW NW NW  N  N NE NE NE
Wind spd          9  6  5  6  5  8  8  8  8  3  2  3  3  6  8 10  9  6  4  4  4
Clouds           B2 B2 B1 SC SC SC SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW
PoP 12hr                     40           5           5           5           0
QPF 12hr                   0.42           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C  C
Tstms             S  S  C
Heat index      100                95 99 94
Max heat        107    91          96   102    91          90    91    83
Heat              Y  Y  Y  Y  Y  Y  Y  Y  Y
Svr Tstorm        A  A


Date           07/24  Tue 07/25/17  Wed 07/26/17  Thu 07/27/17  Fri 07/28/17
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          83      63    86      68    88      70    87      68    86
Temp          80 81   68 65 83 84   72 69 84 85   74 71 78 80   71 68 82 83
Dewpt         61 62   61 61 67 68   68 67 71 71   70 68 71 72   70 67 69 69
PWind dir         E      SE    SE       S    SE       E    SE       E    NE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW FW SC FW   FW SC SC B1   B2 B2 B2 B2   B2 B1 SC SC
PoP 12hr          0       5    20      20    20      40    40      40    10
Rain shwrs                      S       S     S    C  C  C  C    C  C
Tstms                           S       S     S    C  C  C  C    C  C

$$
IAZ004-221000-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
622 PM CDT Fri Jul 21 2017

Date           07/21/17      Sat 07/22/17            Sun 07/23/17            Mon
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                      69          89          64          82          57
Temp             77 72 70 69 69 76 84 87 87 75 69 65 65 74 81 82 79 67 62 58 59
Dewpt            74 72 70 69 69 72 71 69 67 65 63 60 59 62 62 60 61 61 59 56 56
RH               90100100100100 87 65 55 52 71 81 84 81 66 53 47 54 81 90 93 90
Wind dir          E  E NE NW NW NW NW NW NW  W  W NW NW  N NW  N  N NE NE  E  E
Wind spd          8  4  4  4  5  8 10  9  6  4  4  4  5  9 10 11  9  5  4  3  4
Clouds           SC SC SC SC SC SC FW FW FW FW FW FW FW CL FW FW FW FW FW CL FW
PoP 12hr                      5          10           0           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs
Tstms
Obvis                     PF PF
Heat index                         89
Max heat                           90    92    86          83    83


Date           07/24  Tue 07/25/17  Wed 07/26/17  Thu 07/27/17  Fri 07/28/17
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          80      62    84      66    83      65    83      65    83
Temp          77 78   67 66 83 83   70 67 80 79   68 65 78 78   68 66 80 80
Dewpt         60 62   60 60 67 68   66 64 67 68   64 64 69 69   66 64 66 66
PWind dir        SE      SE     S      SE     E       E     E      NE    NE
Wind char        LT      GN    GN      LT    LT      GN    GN      LT    GN
Avg clouds    FW FW   SC SC SC SC   B1 B1 B1 B2   B2 B2 B2 B1   B1 SC SC SC
PoP 12hr          0      10    30      20    10      50    50      40    10
Rain shwrs                      C    S  S          C  C  C  C    C
Tstms                           C    S  S          C  C  C  C    C

$$
IAZ035-221000-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
622 PM CDT Fri Jul 21 2017

Date           07/21/17      Sat 07/22/17            Sun 07/23/17            Mon
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                      71          90          66          87          59
Temp             79 75 73 71 71 77 85 89 87 76 71 67 67 79 85 87 83 70 66 60 60
Dewpt            76 74 71 69 69 74 74 73 71 68 66 63 64 66 64 63 63 62 60 58 57
RH               91 97 93 93 93 90 70 59 59 76 84 87 90 64 50 45 51 76 81 93 90
Wind dir          E  E  S NW NW NW  N  N  N NW  W  W NW NW NW NW  N  N NE NE  E
Wind spd          9  6  4  4  4  6  9  8  6  4  3  3  4  6  9 10  9  6  4  3  4
Clouds           B2 B1 SC SC SC B1 SC SC SC FW FW SC SC FW CL FW FW FW FW FW FW
PoP 12hr                     10           5           5           5           0
QPF 12hr                   0.20           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs
Tstms
Obvis                  PF PF PF
Heat index                         93 97 93
Max heat         91                93    97    89          87    88


Date           07/24  Tue 07/25/17  Wed 07/26/17  Thu 07/27/17  Fri 07/28/17
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          82      62    86      67    88      68    86      67    85
Temp          78 80   67 66 83 84   73 68 83 83   72 68 77 79   70 68 80 81
Dewpt         61 62   60 60 68 68   67 65 69 70   67 66 70 71   68 66 68 68
PWind dir         E      SE     S       S    SE       E    SE       E    NE
Wind char        LT      LT    GN      LT    LT      LT    GN      LT    GN
Avg clouds    FW FW   FW SC SC SC   SC B1 B1 B1   B2 B2 B2 B2   B1 SC SC SC
PoP 12hr          0       5    10      30    10      50    50      40    10
Rain shwrs                              C          C  C  C  C    C  C
Tstms                                   C          C  C  C  C    C  C

$$
IAZ094-221000-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
622 PM CDT Fri Jul 21 2017

Date           07/21/17      Sat 07/22/17            Sun 07/23/17            Mon
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                      76          96          73          92          65
Temp             92 83 82 78 77 87 93 96 93 83 78 75 74 83 90 92 89 77 72 67 66
Dewpt            75 74 72 71 71 73 74 74 72 72 72 69 69 70 68 66 67 67 64 63 62
RH               58 74 72 79 82 63 54 49 51 70 82 82 84 65 49 43 48 71 76 87 87
Wind dir          S  S SW SW SW  W NW NW  N  N  N SW SW  W  W NW  N  N NE NE NE
Wind spd         11 11 11 10  8  9  6  8  8  4  3  3  3  5  8  9  6  4  5  5  5
Clouds           FW SC FW SC B1 SC SC SC SC B1 B1 B1 SC FW FW FW FW FW FW FW FW
PoP 12hr                      5           5          20           5           0
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  S
Tstms                                     S  S
Heat index      102 90          94102107101 88
Max heat        106    99    85   103   109    97          95    97    88
Excess Heat       W  W  W  W  W  W  W  W  W


Date           07/24  Tue 07/25/17  Wed 07/26/17  Thu 07/27/17  Fri 07/28/17
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          86      66    86      69    90      73    90      71    88
Temp          84 84   72 69 83 84   73 70 86 87   76 73 86 84   77 71 84 83
Dewpt         63 64   64 63 68 68   68 67 71 71   71 69 70 71   70 68 70 69
PWind dir         E       E    SE       S     S      SE     S       S     N
Wind char        LT      LT    LT      LT    LT      LT    GN      LT    LT
Avg clouds    FW FW   FW SC SC FW   FW FW SC SC   SC B1 B1 B1   B1 B1 B1 SC
PoP 12hr          0      20    20       5    20       5    20      40    10
Rain shwrs                S  S             S                S    S  C
Tstms                     S  S             S                S    S  C

$$
IAZ017-221000-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
622 PM CDT Fri Jul 21 2017

Date           07/21/17      Sat 07/22/17            Sun 07/23/17            Mon
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                      69          86          64          82          57
Temp             74 71 70 69 70 74 82 85 83 74 69 65 66 76 82 82 79 67 63 58 58
Dewpt            74 71 70 69 70 74 74 74 71 68 66 63 64 66 64 64 63 62 59 57 56
RH              100100100100100100 77 70 67 82 90 93 93 71 55 55 58 84 87 96 93
Wind dir          E  E NE NW NW  N NW NW NW NW  W  W NW NW NW NW  N  N  N NE NE
Wind spd          8  5  5  5  5  6  9  9  8  4  4  4  5  8 11 11 10  5  5  4  5
Clouds           OV B2 B1 SC B2 B1 SC SC FW FW FW SC SC FW FW SC SC SC FW FW FW
PoP 12hr                     20          10           5           5           0
QPF 12hr                   0.27           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S
Tstms                   S
Obvis                     PF PF
Heat index                         88 93 88
Max heat                           89    93    83          83    83


Date           07/24  Tue 07/25/17  Wed 07/26/17  Thu 07/27/17  Fri 07/28/17
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          79      60    83      64    84      65    82      64    83
Temp          75 77   64 63 81 81   68 66 82 80   68 66 76 77   67 65 80 80
Dewpt         60 61   59 60 67 68   66 65 68 69   66 65 69 69   66 65 67 67
PWind dir         E      SE     S      SE     E       E    SE       E    NE
Wind char        LT      LT    GN      LT    LT      LT    GN      LT    GN
Avg clouds    FW FW   FW SC SC B1   B1 B1 B1 B1   B2 B2 B2 B2   B1 SC SC SC
PoP 12hr          0       5    20      30     5      50    60      40    10
Rain shwrs                      S    C  C          C  C  L  C    C  C
Tstms                           S    C  C          C  C  L  C    C  C

$$
IAZ049-221000-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
622 PM CDT Fri Jul 21 2017

Date           07/21/17      Sat 07/22/17            Sun 07/23/17            Mon
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                      72          89          67          87          59
Temp             86 75 75 73 72 78 86 88 86 75 71 68 68 79 86 87 83 70 65 60 61
Dewpt            76 75 73 71 71 74 76 76 74 72 69 67 66 70 67 64 65 64 62 59 59
RH               72100 94 93 97 88 72 68 68 90 93 97 93 74 53 46 55 81 90 96 93
Wind dir         SE SE  S SW  W NW NW NW NW NW  W  W  W  W NW NW  N  N  N  N NE
Wind spd          9  8  8  6  5  8  8  9  8  4  3  3  4  5  8 11  9  6  4  4  4
Clouds           B2 OV B1 SC SC SC SC B1 SC FW SC SC SC SC FW FW FW FW FW FW FW
PoP 12hr                     60          10           5           5           0
QPF 12hr                   0.62           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        L  C  C  S
Tstms             S  S  C  S
Heat index       95                95 98 94
Max heat        105    87          96    99    89          90    90
Heat              Y  Y  Y  Y  Y  Y  Y  Y  Y
Svr Tstorm        A  A


Date           07/24  Tue 07/25/17  Wed 07/26/17  Thu 07/27/17  Fri 07/28/17
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          80      61    84      66    87      68    85      66    84
Temp          77 78   66 66 82 82   71 69 84 84   72 69 76 77   69 67 82 81
Dewpt         60 62   60 60 65 67   66 65 70 70   68 67 70 72   69 66 69 69
PWind dir        NE       E    SE      SE    SE       E    SE       E     N
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW FW SC SC   SC SC B1 B1   B2 B2 B2 B2   B2 B1 SC SC
PoP 12hr          0       0    20      20    10      40    40      50    10
Rain shwrs                      S       S          C  C  C  C    C  C
Tstms                           S       S          C  C  C  C    C  C

$$
IAZ086-221000-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
622 PM CDT Fri Jul 21 2017

Date           07/21/17      Sat 07/22/17            Sun 07/23/17            Mon
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                      79          96          72          93          64
Temp             93 84 82 81 80 85 93 96 91 80 75 73 73 86 93 93 88 74 70 65 65
Dewpt            74 74 72 72 72 72 74 74 73 73 72 70 69 69 67 65 65 65 64 62 61
RH               54 72 72 74 77 65 54 49 56 79 90 90 87 57 43 40 47 74 81 90 87
Wind dir          S  S SW SW SW  W NW NW  N  N NW  W  W  W  W NW  N  N  N  N NE
Wind spd         11  9 10 10  9 10  9  9  9  4  4  3  4  6  9  9  8  6  4  4  5
Wind gust                 23
Clouds           FW SC B1 FW SC SC SC SC SC SC SC SC SC FW SC FW FW FW FW FW FW
PoP 12hr                     20          10           5          10           0
QPF 12hr                   0.02           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           S  S
Tstms                   S
Heat index      103 91 87       91104107 99
Max heat        107   101    85   105   109    96          98    97    87
Excess Heat       W  W  W  W  W  W  W  W  W
Svr Tstorm        A  A


Date           07/24  Tue 07/25/17  Wed 07/26/17  Thu 07/27/17  Fri 07/28/17
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          85      65    87      68    92      72    90      71    89
Temp          83 83   70 69 84 84   72 70 89 87   76 73 84 81   74 71 84 82
Dewpt         61 61   60 61 65 66   66 65 69 69   70 68 71 72   69 69 70 69
PWind dir        NE       E    SE      SE    SE       E    SE       S     N
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW FW SC FW   FW FW SC SC   B1 B2 B2 B2   B1 B1 B1 SC
PoP 12hr          0       5    10       5    20      30    40      40    20
Rain shwrs                                    S    C  C  C  C    C  C     S
Tstms                                         S    C  C  C  C    C  C     S

$$



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