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Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
436 AM CDT Fri Aug 18 2017

IAZ060-182200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
436 AM CDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      84          60          86          65          91
Temp             62 74 81 84 81 71 65 62 61 71 81 86 83 73 68 66 66 79 87 91 87
Dewpt            59 62 63 64 64 65 62 61 60 63 63 60 62 60 60 61 61 65 65 64 65
RH               90 66 54 51 56 81 90 97 97 76 54 42 49 64 76 84 84 62 48 41 48
Wind dir         SW  S SW  W NW  N  N NW NW SE  W  W  N  E SE  S  S  S  S  S  S
Wind spd          3  4  8  9  6  3  3  3  3  4  4  5  3  3  4  3  3  6  9 10  8
Clouds           SC B2 B1 SC FW FW SC FW SC FW FW CL CL FW FW SC B1 SC SC SC SC
PoP 12hr                     20          10           0          10          10
QPF 12hr                   0.05           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  S                                                  S
Tstms                   S  S                                                  S
Obvis                                 PF PF


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          71    88      71    84      62    82      60    80
Temp          75 71 86 86   76 72 83 81   68 63 80 79   65 62 78 77
Dewpt         66 68 71 72   71 70 69 66   62 59 59 59   58 58 59 58
PWind dir         S     S      SW    NW       N     N      NE     E
Wind char        LT    GN      GN    GN      LT    LT      LT    LT
Avg clouds    SC B2 B2 B1   B2 B2 B2 SC   FW FW FW FW   FW SC SC SC
PoP 12hr         30    30      60    40       5     0      10    10
Rain shwrs     S  C  C  S    C  L  C  C
Tstms          S  C  C  S    C  L  C  C

$$
IAZ039-182200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
436 AM CDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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          56          80          60          86
Temp             60 72 77 78 76 66 61 58 57 68 77 80 78 68 63 61 61 76 83 86 82
Dewpt            58 62 62 62 63 62 60 57 57 62 63 62 64 62 60 59 59 66 67 68 68
RH               93 71 60 58 64 87 97 96100 81 62 54 62 81 90 93 93 71 59 55 63
Wind dir         NW NW SW NW  N NE NW  N NW  W  W SW  S SE  S SE  S  S  S  S  S
Wind spd          4  4  4  4  3  3  2  2  2  3  4  4  3  3  3  3  3  6  8  8  6
Clouds           SC B2 B1 B2 SC SC SC FW SC FW FW FW FW CL FW FW SC SC SC SC SC
PoP 12hr                     30          30           0           5           5
QPF 12hr                   0.10        0.03           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           S  S  C  C  S                                            C
Tstms                S  S  C  C  S                                            C
Obvis                                 PF PF


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          66    84      68    80      59    79      56    77
Temp          68 66 82 81   73 68 79 77   65 60 77 74   61 58 75 72
Dewpt         64 65 71 71   69 68 69 65   61 57 60 60   57 55 60 59
PWind dir         S     S       S     W       N     N       N     E
Wind char        LT    GN      LT    GN      LT    LT      LT    LT
Avg clouds    SC B1 B2 B2   B2 OV B2 SC   FW FW FW FW   FW FW FW FW
PoP 12hr         40    60      80    50       0     5       5     5
Rain shwrs     C  C  L  C    L  D  C  C
Tstms          C  C  L  C    L  D  C  C

$$
IAZ048-182200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
436 AM CDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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          57          82          61          88
Temp             60 72 78 81 78 68 63 60 58 70 78 82 80 69 64 63 62 77 84 88 83
Dewpt            58 63 64 65 66 64 61 59 58 63 64 62 64 62 60 60 60 66 66 66 67
RH               93 73 62 58 67 87 93 96100 78 62 51 58 78 87 90 93 69 55 48 59
Wind dir          W  S  S  W NW  N NE NW NW  S  W  W SE SE SE  S  S  S  S  S  S
Wind spd          2  4  5  6  5  3  3  3  2  3  4  4  3  3  3  3  3  6  8  9  6
Clouds           SC B2 B1 SC SC SC SC FW SC FW FW FW CL FW FW SC SC SC SC SC SC
PoP 12hr                     30          10           0          10          10
QPF 12hr                   0.04           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           S  C  S                                                  C
Tstms                S  C  S                                                  C
Obvis                                 PF PF


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          68    86      69    82      60    80      58    78
Temp          71 69 83 84   74 70 80 79   66 61 78 77   63 60 76 74
Dewpt         66 67 71 73   70 69 69 66   62 58 59 60   58 57 59 60
PWind dir         S     S      SW    NW       N     N      NE     E
Wind char        LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    SC B1 B2 B1   B2 B2 B2 SC   FW FW FW FW   FW SC SC SC
PoP 12hr         40    30      70    40       5     0      10    10
Rain shwrs     C  C  C       C  L  C  C
Tstms          C  C  C       C  L  C  C

$$
IAZ004-182200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
436 AM CDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      76          55          80          62          84
Temp             56 63 72 76 73 63 59 56 56 68 77 80 78 67 64 63 63 74 80 84 81
Dewpt            56 61 63 63 64 62 58 56 56 63 63 63 65 63 61 60 60 65 68 69 70
RH              100 93 73 64 73 97 96100100 84 62 56 64 87 90 90 90 74 67 61 69
Wind dir         SW NE SE SW NW SW  W NW  W  W SW SW  S  S  S  S  S SW SW  S  S
Wind spd          4  4  5  4  4  3  4  3  2  4  4  4  4  4  6  6  6 10 10  9  6
Clouds           OV B2 SC SC SC SC FW FW FW FW FW FW CL FW SC SC SC SC SC SC SC
PoP 12hr                     60          40           0          10          20
QPF 12hr                   0.15        0.04           0           0        0.02
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        L  S        C  S                                      S  S  C
Tstms             S  S        C  S                                      S  S  C
Obvis                                 PF PF


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          65    82      64    76      57    77      56    75
Temp          68 65 79 80   69 65 74 74   62 59 75 74   61 57 73 72
Dewpt         65 65 71 72   68 65 65 63   58 56 59 60   57 56 60 60
PWind dir         S     S       E     N      NW    NW       E     E
Wind char        LT    LT      LT    GN      LT    LT      LT    LT
Avg clouds    B1 B1 B1 B2   B2 B2 B1 SC   FW FW FW SC   SC FW FW FW
PoP 12hr         50    30      70    30       5     5       5     5
Rain shwrs     C  C  C       L  L  C
Tstms          C  C  C       L  L  C

$$
IAZ035-182200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
436 AM CDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      79          56          81          62          87
Temp             58 68 76 79 77 67 61 58 57 69 77 81 79 69 66 64 63 76 83 87 84
Dewpt            57 62 64 64 64 63 60 58 57 63 63 63 64 62 60 60 60 66 67 68 68
RH               96 81 66 60 64 87 97100100 81 62 54 60 78 81 87 90 71 59 53 59
Wind dir         SW SE SW NW NW  N SE  W  W SW SW SW  S SE  S  S  S SW  S  S  S
Wind spd          2  5  6  5  5  4  3  2  2  3  4  4  4  4  4  4  5  9 10 10  8
Clouds           B2 B2 B1 SC SC SC FW FW SC FW FW FW CL FW SC SC SC SC SC SC SC
PoP 12hr                     30          20           0          10          10
QPF 12hr                   0.07           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C  S     S                                               C
Tstms             S  C  S     S                                               C
Obvis                                 PF PF


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          67    85      67    80      59    79      57    77
Temp          70 67 82 83   72 68 79 77   64 60 77 76   62 58 75 74
Dewpt         65 66 71 73   69 67 68 65   60 56 59 60   58 56 60 60
PWind dir         S     S      SW    NW       N     N       E     E
Wind char        LT    GN      LT    GN      LT    LT      LT    LT
Avg clouds    B1 B1 B1 B1   B2 B2 B2 SC   FW FW FW FW   SC SC FW SC
PoP 12hr         40    30      60    50       5     0      10     5
Rain shwrs     C  C  C       C  L  C
Tstms          C  C  C       C  L  C

$$
IAZ094-182200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
436 AM CDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      85          61          87          65          89
Temp             61 77 83 85 82 71 67 64 62 73 82 87 84 74 70 68 66 80 87 89 87
Dewpt            57 61 62 63 64 64 63 61 60 64 63 61 62 61 60 62 62 65 65 66 66
RH               87 58 49 48 55 79 87 90 93 73 53 42 48 64 71 81 87 60 48 47 50
Wind dir         SW SW SW SW  W NW NW NW  N  N  W  W  W  S  S  S  S  S  S  S  S
Wind spd          4  5  8 10  6  4  3  3  4  3  4  5  4  3  3  3  4  8  8 10  8
Clouds           SC SC SC B1 SC FW FW FW FW FW FW CL CL FW SC SC B1 SC B1 B1 SC
PoP 12hr                     20          20           0          10          20
QPF 12hr                   0.01        0.01           0           0        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  S  S                                         S  S  S
Tstms                   S  S  S                                         S  S  S
Obvis                                 PF PF


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          70    89      71    85      62    82      59    80
Temp          73 71 86 87   75 72 83 82   69 63 80 79   65 60 78 77
Dewpt         67 68 71 72   72 70 70 67   64 60 59 58   58 57 59 58
PWind dir         S     S      SW     W       N     N      NE     E
Wind char        LT    GN      GN    GN      LT    LT      LT    LT
Avg clouds    B1 B1 B1 B1   B1 B2 B2 B1   SC FW FW FW   FW SC SC SC
PoP 12hr         30    40      30    50      10     5       5    10
Rain shwrs     S  C  C  S    C  C  C  C
Tstms          S  C  C  S    C  C  C  C

$$
IAZ017-182200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
436 AM CDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      76          55          79          60          84
Temp             59 68 71 75 74 65 59 57 56 68 77 79 77 66 63 61 62 73 81 84 80
Dewpt            58 62 61 63 64 62 59 57 56 63 63 63 65 62 60 59 59 66 68 70 70
RH               96 81 71 66 71 90100100100 84 62 58 67 87 90 93 90 79 65 63 72
Wind dir          W NW SE SW NW NW  W  W  W  W  W SW  S  S  S  S  S  S  S  S  S
Wind spd          4  4  4  4  3  3  2  2  3  4  5  5  3  3  4  4  5  8 10 10  6
Clouds           B2 OV B2 SC SC B1 SC FW SC SC FW FW FW FW FW FW SC SC SC SC SC
PoP 12hr                     40          30           0           5          20
QPF 12hr                   0.12        0.05           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        S  C  C  S  C  C                                      S  S  C
Tstms             S  C  C  S  C  C                                      S  S  C
Obvis                                 PF PF


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          65    81      66    78      58    77      55    76
Temp          66 65 79 79   69 67 77 75   63 60 75 73   60 57 74 72
Dewpt         65 65 72 73   68 67 68 64   59 57 59 60   57 56 60 60
PWind dir         S     S       S    NW      NW    NW       N     E
Wind char        LT    GN      LT    GN      LT    LT      LT    LT
Avg clouds    B1 B1 B2 B2   B2 B2 B2 SC   FW FW FW FW   SC FW FW FW
PoP 12hr         50    50      70    50       5     5       5     5
Rain shwrs     C  C  C  C    L  L  C  S
Tstms          C  C  C  C    L  L  C  S

$$
IAZ049-182200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
436 AM CDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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          56          81          60          86
Temp             58 71 77 80 76 65 61 57 57 68 77 81 78 68 63 61 61 75 84 86 82
Dewpt            57 63 63 63 64 63 60 57 57 63 63 63 64 62 60 59 59 65 66 65 67
RH               96 76 62 56 66 93 97100100 84 62 54 62 81 90 93 93 71 55 50 61
Wind dir          W SW  S  W  N NE  N NW  N SW  W  W  E SE SE SE  S  S  S  S  S
Wind spd          3  3  4  5  5  3  2  2  3  3  4  4  2  3  3  3  4  6  8  8  6
Clouds           SC B2 B1 B1 SC SC SC FW SC FW FW FW FW CL FW SC SC SC SC SC SC
PoP 12hr                     30          20           0           5          10
QPF 12hr                   0.04        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  C  S                                               C
Tstms                   C  C  S                                               C
Obvis                                 PF PF


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          66    84      68    80      58    79      56    77
Temp          68 67 82 81   72 69 79 77   64 59 77 75   61 58 75 72
Dewpt         65 66 71 72   70 68 69 66   61 57 60 61   58 56 60 59
PWind dir         S     S       S     W       N     N       N     E
Wind char        LT    GN      LT    GN      LT    LT      LT    LT
Avg clouds    SC B1 B2 B2   B2 B2 B2 B1   FW FW FW FW   FW SC FW FW
PoP 12hr         40    60      70    40       0     0       5     5
Rain shwrs     C  C  L  C    L  L  C  C
Tstms          C  C  L  C    L  L  C  C

$$
IAZ086-182200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
436 AM CDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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          59          86          63          91
Temp             60 76 84 86 81 70 65 61 60 72 83 86 83 72 67 65 64 81 89 91 87
Dewpt            58 62 61 60 63 64 63 60 59 63 62 61 62 62 60 60 61 64 63 62 64
RH               93 62 46 42 54 81 93 97 96 73 49 43 49 71 78 84 90 56 42 38 46
Wind dir          W SW SW SW  W NW NW  N  N  N  W  W  N  E SE  S  S  S  S  S  S
Wind spd          4  3  6  9  6  5  3  3  3  3  4  4  3  4  3  3  3  5  8  9  6
Clouds           FW SC B1 B1 B1 SC SC FW SC FW FW FW CL CL FW FW SC SC SC SC SC
PoP 12hr                     30          40           0           5           5
QPF 12hr                   0.01        0.02           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S  C  S                                            S
Tstms                      S  C  S                                            S
Obvis                                 PF PF


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          69    90      71    85      61    82      58    81
Temp          73 70 87 86   76 72 84 80   68 62 80 77   64 60 79 76
Dewpt         65 66 70 71   71 70 71 68   63 59 59 59   57 57 58 58
PWind dir         S     S      SW     W       N     N       N    NE
Wind char        LT    GN      GN    GN      LT    LT      LT    LT
Avg clouds    SC B1 B2 B1   B2 B2 B2 B1   SC FW FW FW   FW FW SC SC
PoP 12hr         30    60      60    50      10     0       0     5
Rain shwrs     S  C  L  C    C  L  C  C
Tstms          S  C  L  C    C  L  C  C

$$



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