Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
451 AM CDT Sun Aug 20 2017

IAZ060-202200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
451 AM CDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
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          68          89          69          81
Temp             69 76 84 87 83 75 72 69 72 79 86 89 85 77 73 71 69 72 78 81 77
Dewpt            63 67 68 69 69 69 69 68 68 71 72 73 73 70 70 68 67 66 63 59 57
RH               81 74 59 55 63 82 90 97 87 77 63 59 67 79 90 90 93 81 60 47 50
Wind dir          S SE  S  S  S  S SE  E SE  S  S  S  S SW SW  W NW  N  N  N  N
Wind spd          6  8  9 10  8  8  6  5  8  8  9 10  8  6  6  6  6  9 11 11  9
Clouds           B2 B2 B1 B1 SC B1 B2 B2 B2 B2 B1 B1 B2 B2 OV OV B2 SC SC FW FW
PoP 12hr                     30          50          40          70          20
QPF 12hr                   0.32        0.51        0.20        0.57           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C  S  S  C  C  C  C  C  C  C  C  L  L  L  L  S  S
Tstms             C  S     S  C  C  C  C  C  C  C  C  L  L  L  L  S  S
Heat index                92                   93 96 91
Max heat               88    93    85          94    97    88                82


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
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          56    79      56    79      59    80      60    81
Temp          62 57 77 76   61 58 76 77   64 61 77 77   65 61 78 78
Dewpt         54 51 53 54   53 53 57 57   55 55 59 59   56 56 59 59
PWind dir        NW     N      NE     E      SE    SE      SE    SE
Wind char        LT    LT      LT    LT      LT    GN      LT    GN
Avg clouds    FW CL CL FW   FW FW SC SC   SC SC SC SC   SC B1 B1 B1
PoP 12hr          0     0       5    10       5     5       5     5

$$
IAZ039-202200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
451 AM CDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
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          66          82          65          77
Temp             64 74 80 82 79 72 69 67 68 74 80 82 78 73 69 66 65 69 76 77 73
Dewpt            61 65 66 68 69 67 67 65 66 69 71 72 73 70 68 66 64 64 61 59 57
RH               90 74 62 63 72 84 93 93 93 84 74 72 85 90 97100 97 84 60 54 57
Wind dir         SE  S  S  S SE SE  S SE SE  S  S  S  S NE SW NW NW  N  N  N  N
Wind spd          5  9  9  8  5  5  5  8  6  4  6  6  6  5  4  5  6 11 12 13  9
Clouds           B2 B2 B1 B1 SC B1 B2 B2 B2 B2 B2 B2 OV OV OV OV B2 SC FW FW FW
PoP 12hr                     30          60          60          70          10
QPF 12hr                   0.20        0.44        0.48        1.00           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        S  C     S  C  C  C  L  C  C  L  L  L  L  L  L
Tstms             S  S     S  C  C  C  L  C  C  C  C  L  L  L  L
Heat index                                        87
Max heat               83    86                83    87


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
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          53    76      53    76      55    76      58    77
Temp          58 54 75 73   57 55 74 72   59 57 74 72   62 59 75 73
Dewpt         53 50 55 55   53 52 55 56   55 54 58 59   55 54 59 59
PWind dir        NW    NW       N     E      SE    SE      SE    SE
Wind char        LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    FW CL FW FW   FW FW FW FW   FW FW SC SC   B1 B1 B1 SC
PoP 12hr          0     5       0     5       5     5      10    10

$$
IAZ048-202200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
451 AM CDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
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          67          85          66          78
Temp             67 75 81 84 81 73 69 67 69 75 83 85 82 74 70 69 66 70 76 78 74
Dewpt            62 66 68 69 71 70 68 66 67 71 73 73 73 70 68 67 66 65 62 58 57
RH               84 74 65 61 72 90 97 97 93 87 72 67 74 87 93 93100 84 62 50 55
Wind dir         SE SE  S  S  S  S SE  E SE  S  S  S  S SW SW NW NW  N  N  N  N
Wind spd          4  8  8  8  5  5  5  6  6  6  8  8  8  5  4  5  6 10 12 11  9
Clouds           B2 B2 B1 B1 SC B1 B2 B2 B2 B2 B2 B1 B2 OV OV B2 B2 SC FW FW FW
PoP 12hr                     30          60          50          70          10
QPF 12hr                   0.33        0.64        0.30        0.56           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C     S  C  C  C  L  C  C  C  C  L  L  L  L
Tstms             C  S     S  C  C  C  L  C  C  C  C  L  L  L  L
Heat index                                     88 92 87
Max heat               85    89                89    93    84


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
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          53    78      53    77      57    78      58    78
Temp          59 54 77 74   58 55 74 74   62 58 75 75   64 59 76 75
Dewpt         53 51 54 55   54 53 58 58   56 55 59 60   55 55 60 60
PWind dir        NW     N      NE     E      SE    SE      SE    SE
Wind char        LT    LT      LT    LT      LT    GN      LT    GN
Avg clouds    FW CL CL FW   FW FW SC SC   SC SC SC SC   B1 B1 B1 B1
PoP 12hr          0     0       5    10       5     5      10    10
Rain shwrs                                                        S
Tstms                                                             S

$$
IAZ004-202200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
451 AM CDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
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                      83          63          78          58          73
Temp             65 74 80 83 79 71 67 65 65 70 75 78 74 67 64 61 58 65 71 73 70
Dewpt            62 66 68 69 70 69 67 65 65 67 70 71 68 66 63 60 58 59 56 55 55
RH               90 76 67 63 74 93100100100 90 84 79 82 97 97 97100 81 59 53 59
Wind dir          S  S NW  E NE NE NE NE  E  E SE SE NW  N NW NW  N  N  N  N  N
Wind spd          5  6  8  6  5  5  5  5  5  6  6  5  5  4  5  6  8 10 12 12  9
Clouds           B1 B1 SC B1 B1 B1 B2 B2 B2 B2 B2 OV OV OV B2 B1 SC FW FW FW FW
PoP 12hr                     30          60          60          70           0
QPF 12hr                   0.04        0.28        0.39        0.31           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        S           C  C  C  L  S  S  L  L  L  L  S  S
Tstms             S           C  C  C  L  S  S  C  C  L  L  S  S


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
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          51    73      52    73      57    74      59    74
Temp          55 52 71 70   57 54 70 71   60 58 72 71   63 60 72 72
Dewpt         50 48 53 56   52 52 56 58   56 54 59 60   57 56 60 61
PWind dir        NW    NW       E     S      SE     S       S     S
Wind char        LT    LT      LT    LT      LT    GN      GN    GN
Avg clouds    FW CL CL FW   FW FW SC SC   SC B1 B1 B1   B1 B1 B1 B1
PoP 12hr          0     0       5    10       5    10      20    30
Rain shwrs                                                  S  C  C
Tstms                                                       S  S  S

$$
IAZ035-202200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
451 AM CDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
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                      83          67          82          62          76
Temp             68 76 81 83 80 73 69 68 69 74 80 82 79 71 68 64 62 69 74 76 72
Dewpt            61 66 68 69 71 69 68 67 67 69 71 72 72 69 66 64 61 62 59 57 57
RH               78 71 65 63 74 87 97 97 93 84 74 72 79 93 93100 97 78 59 52 59
Wind dir          S  S  S  S SE SE SE SE SE SE  S  S  S SE  W NW  N  N  N  N  N
Wind spd          5 10  9  6  5  8  5  6  6  6  6  6  6  5  4  6  5 11 12 12  8
Clouds           B2 B1 B1 SC SC B1 B2 B2 B2 B2 B2 B2 OV OV OV B2 B1 FW FW FW FW
PoP 12hr                     30          60          60          70           5
QPF 12hr                   0.16        0.62        0.26        0.70           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  S     S  C  C  C  L  C  C  L  L  L  L  C  C
Tstms             C  S     S  C  C  C  L  C  C  C  C  L  L  C  C
Heat index                                        87
Max heat               84    87                85    88


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
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          53    76      53    76      57    76      59    77
Temp          58 54 74 73   59 55 73 73   62 58 74 73   64 60 75 74
Dewpt         52 49 54 56   52 52 57 57   56 54 59 60   56 55 60 61
PWind dir        NW    NW       E    SE      SE    SE      SE     S
Wind char        LT    LT      LT    LT      LT    GN      GN    GN
Avg clouds    FW CL CL FW   FW FW SC SC   SC SC SC SC   B1 B1 B1 B1
PoP 12hr          0     0      10    10       5    10      10    30
Rain shwrs                                                        C
Tstms                                                             S

$$
IAZ094-202200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
451 AM CDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
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                      89          70          89          68          82
Temp             70 78 85 89 86 77 74 72 72 79 87 89 85 77 72 70 68 73 79 82 77
Dewpt            65 68 69 71 71 71 70 69 70 71 71 72 71 71 70 69 68 68 65 60 58
RH               84 71 59 56 61 82 87 90 93 77 59 57 63 82 93 97100 84 62 47 52
Wind dir          S  S  S  S  S SE  S  S  S  S  S  S  S SW SW SW  W  N  N  N  N
Wind spd          5  8 10 10  9  6  6  6  6  8 10 11  9  9  8  8  6 10 11 12  9
Clouds           B2 B2 B1 B1 SC B1 B2 B1 B2 B2 B1 B1 B1 B2 OV OV OV B1 SC FW FW
PoP 12hr                     50          40          40          70          20
QPF 12hr                   0.14        0.33        0.09        0.64           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  S     S  S  C  C  C  C  C  C  C  L  L  L  L  S  S
Tstms             C  S     S  S  C  C  C  C  C  C  C  L  L  L  L  S  S
Heat index                95 91                92 95 90
Max heat               90    96    88          94    97    89          82    83


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
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          55    79      55    80      58    79      59    80
Temp          61 56 78 77   61 57 77 76   64 59 76 76   64 60 78 77
Dewpt         54 52 51 52   53 52 55 54   55 55 57 57   57 56 58 59
PWind dir         N     N      NE     E      SE    SE      SE    SE
Wind char        LT    LT      LT    LT      LT    GN      LT    GN
Avg clouds    FW CL CL FW   FW FW SC SC   SC SC B1 SC   SC SC SC SC
PoP 12hr          0     0       0     5       5     5       5     5

$$
IAZ017-202200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
451 AM CDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
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          65          79          61          74
Temp             65 73 80 82 79 71 68 65 66 71 77 79 76 69 66 64 61 67 73 74 71
Dewpt            62 65 67 69 71 69 67 65 66 68 71 72 72 68 66 63 61 62 59 56 56
RH               90 76 65 65 77 93 97100100 90 82 79 87 97100 97100 84 62 53 59
Wind dir          S  S  S SW SW  E  S  E  E SE  S  S SE  E NW NW NW  N  N NW NW
Wind spd          6  9  9  6  4  5  5  5  5  5  6  6  4  6  5  6  8 11 13 12 10
Clouds           B2 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 OV OV OV B2 B1 FW FW FW FW
PoP 12hr                     30          60          60          70           5
QPF 12hr                   0.13        0.31        0.42        0.72           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        S  S     S  C  C  C  L  C  C  L  L  L  L  C  C
Tstms             S  S     S  C  C  C  L  C  C  C  C  L  L  C  C


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
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          51    74      51    75      55    75      57    75
Temp          56 52 72 71   55 54 72 72   58 57 73 72   62 58 73 71
Dewpt         51 49 55 55   53 52 56 58   55 54 59 60   55 55 60 60
PWind dir        NW    NW       E    SE      SE    SE      SE     S
Wind char        LT    LT      LT    LT      LT    GN      GN    GN
Avg clouds    FW CL FW FW   FW FW FW SC   SC SC SC B1   B1 B1 B1 B1
PoP 12hr          0     0       5    10       5    10      10    30
Rain shwrs                                                        C
Tstms                                                             S

$$
IAZ049-202200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
451 AM CDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
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          67          83          65          77
Temp             65 74 81 84 80 72 70 68 68 74 81 83 79 72 69 67 65 70 75 77 73
Dewpt            62 65 66 68 69 69 67 65 67 70 72 73 73 70 68 66 65 64 62 59 58
RH               90 74 60 59 69 90 90 90 97 87 74 72 82 93 97 97100 81 64 54 59
Wind dir         SE  S  S  S  S  S  S  E SE SE  S  S  S SW SW  W NW  N  N  N  N
Wind spd          5  9  9  9  6  5  5  6  6  6  8  8  6  9  5  6  8 10 12 12 10
Clouds           B2 B2 B1 B1 SC B1 B2 B2 B2 B2 B2 B1 B2 OV OV OV B2 SC SC FW FW
PoP 12hr                     30          60          50          70          10
QPF 12hr                   0.26        0.75        0.59        0.62           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C     S  C  C  C  L  C  C  C  C  L  L  L  L
Tstms             C  S     S  C  C  C  L  C  C  C  C  L  L  L  L
Heat index                                        89
Max heat               84    87                85    89


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
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          52    76      52    76      55    76      57    77
Temp          58 53 74 72   56 54 74 73   60 57 74 73   62 58 75 73
Dewpt         53 50 55 55   53 51 56 57   54 54 58 59   54 54 59 59
PWind dir        NW    NW      NE     E      SE    SE      SE    SE
Wind char        LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    FW CL CL FW   FW FW SC SC   FW SC SC SC   B1 B1 B1 B1
PoP 12hr          0     0       5     5       5     5       5    10

$$
IAZ086-202200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
451 AM CDT Sun Aug 20 2017

Date             Sun 08/20/17            Mon 08/21/17            Tue 08/22/17
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                      89          68          88          69          81
Temp             68 78 86 89 83 74 72 70 71 78 86 88 84 78 73 71 69 74 79 81 77
Dewpt            62 67 69 68 68 69 68 67 68 71 72 71 72 71 70 69 68 68 65 61 59
RH               81 69 57 50 61 84 87 90 90 79 63 57 67 79 90 93 97 82 62 51 54
Wind dir         SE  S  S  S  S  S  S SE SE  S  S  S  S SW SW SW  W NW  N  N  N
Wind spd          5  6  9 11  8  6  5  5  6  8 10 10  9  9  9  8  8 10 12 12 10
Clouds           B2 B2 B1 B1 SC B1 B2 B2 B2 B2 B1 B1 B1 B2 OV OV OV B1 SC FW FW
PoP 12hr                     60          60          40          70          20
QPF 12hr                   0.14        0.34        0.25        0.50        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        L  C  S  S  C  C  C  L  C  C  C  C  L  L  L  L  S  S
Tstms             L  C     S  C  C  C  L  C  C  C  C  L  L  L  L  S  S
Heat index                                     93 94 90
Max heat               91    94    83          94    96    88          82    83


Date          Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
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          55    79      54    79      55    79      57    80
Temp          61 56 78 76   60 56 76 75   60 57 77 75   63 58 78 76
Dewpt         54 51 52 53   53 52 54 55   55 53 56 56   54 54 56 57
PWind dir        NW     N       N    NE       E    SE      SE    SE
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW CL CL FW   FW FW FW FW   FW SC SC SC   SC B1 SC SC
PoP 12hr          0     0       0     5       5     5       5     5

$$



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