Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
420 AM CDT Tue Aug 20 2019

IAZ060-202200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
420 AM CDT Tue Aug 20 2019

Date             Tue 08/20/19            Wed 08/21/19            Thu 08/22/19
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                      90          71          78          59          78
Temp             71 76 86 90 87 80 77 74 71 74 77 78 77 69 65 61 60 69 76 78 75
Dewpt            69 71 74 75 76 75 74 72 71 69 68 65 65 64 61 59 58 60 59 59 60
RH               93 85 68 62 70 85 90 93100 84 74 64 67 84 87 93 93 73 56 52 60
Wind dir         SE  S SW  W NW NW  N  N  N NE NE NE NE NE NE NE NE  E  E  E  E
Wind spd          6  8  8  5  3  2  2  3  4  5  5  5  4  2  3  2  2  4  5  5  5
Wind gust                                      16
Clouds           OV B2 SC SC SC SC B1 OV OV OV OV B2 B2 SC B1 SC B1 SC B1 B1 SC
PoP 12hr                     50          60          90          30          20
QPF 12hr                   0.04        0.26        0.27        0.06        0.03
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C                 C  L  L  D  C  C  C  C  C  C  S  S
Tstms             C                 C  L  L  D  C  C  C  C  C  C  S  S
Heat index             94102 98
Max heat               96   103    95
Svr Tstorm


Date          Fri 08/23/19  Sat 08/24/19  Sun 08/25/19  Mon 08/26/19
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          60    78      61    79      64    83      67    84
Temp          64 60 75 75   65 61 76 77   67 65 79 81   72 68 81 82
Dewpt         59 58 61 61   61 59 62 63   64 64 67 69   68 66 68 69
PWind dir         E     E      SE    SE      SE     S       S    SW
Wind char        LT    GN      LT    GN      LT    GN      LT    LT
Avg clouds    SC SC SC SC   SC B1 B1 B1   SC B1 B1 SC   SC B1 B1 SC
PoP 12hr         10    10      20    20      20    20      40    30
Rain shwrs                      S  S          S  S  S    C  C  C  S
Tstms                           S  S          S  S  S    C  C  C  S

$$
IAZ039-202200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
420 AM CDT Tue Aug 20 2019

Date             Tue 08/20/19            Wed 08/21/19            Thu 08/22/19
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          68          78          55          78
Temp             66 74 81 85 83 77 74 70 68 73 76 78 76 66 61 57 56 69 76 78 75
Dewpt            65 68 71 73 74 72 72 69 66 65 62 59 60 58 56 53 53 57 56 56 57
RH               97 82 72 67 74 85 93 97 93 76 62 52 58 75 84 86 90 66 50 47 54
Wind dir         SE SE  S  W  W NW NW  N  N  N  N  N  N  N NE NE NE  E NE NE NE
Wind spd          6  8  6  5  3  2  2  4  5  6  5  5  5  2  1  1  2  2  4  5  5
Clouds           OV OV B1 B1 FW SC B1 SC B1 B2 B2 B1 B1 SC SC FW SC FW SC SC SC
PoP 12hr                     80          20          40           5           5
QPF 12hr                   0.06           0        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        D  S                 S     C
Tstms             D  S                 S     C
Heat index                92 90
Max heat               85    93    87


Date          Fri 08/23/19  Sat 08/24/19  Sun 08/25/19  Mon 08/26/19
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    77      57    78      61    81      65    83
Temp          60 57 74 74   62 58 76 76   64 62 79 78   68 66 80 81
Dewpt         55 54 58 58   57 55 59 60   60 60 64 66   66 65 66 67
PWind dir         E    SE      SE    SE      SE     S       S    SW
Wind char        LT    LT      LT    GN      LT    GN      LT    LT
Avg clouds    SC SC FW FW   FW SC SC SC   SC SC B1 B1   B1 B1 B1 SC
PoP 12hr          5    10      10    10      20    20      40    30
Rain shwrs                                    S  S  S    C  C  C  C
Tstms                                         S  S  S    C  C  C  C

$$
IAZ048-202200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
420 AM CDT Tue Aug 20 2019

Date             Tue 08/20/19            Wed 08/21/19            Thu 08/22/19
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                      88          66          78          56          78
Temp             69 76 82 88 84 76 72 69 66 73 75 78 75 66 62 58 57 69 76 78 74
Dewpt            69 70 74 76 76 75 72 69 66 68 67 65 64 62 58 56 55 60 59 60 61
RH              100 82 77 68 77 97100100100 84 76 64 69 87 87 93 93 73 56 54 64
Wind dir         SE  S SW  W  N  N  N  N  N NE NE NE NE NE NE NE NE  E  E  E  E
Wind spd          8  8  6  5  3  2  2  4  5  5  5  4  4  2  2  2  2  4  5  5  5
Clouds           OV OV SC SC FW SC B1 OV OV OV OV B2 B2 SC SC SC SC SC SC SC SC
PoP 12hr                     50          50          60          20          10
QPF 12hr                   0.02        0.02        0.10           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C                 S  C  C  C  S  S  S  S
Tstms             C                 S  C  C  C  S  S  S  S
Heat index             88 99 93
Max heat               90    99    89
Svr Tstorm


Date          Fri 08/23/19  Sat 08/24/19  Sun 08/25/19  Mon 08/26/19
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    77      58    79      62    83      65    83
Temp          60 57 75 74   61 59 76 76   64 63 80 81   68 66 80 80
Dewpt         58 56 61 62   60 59 62 63   64 63 68 70   68 66 69 69
PWind dir         E    SE      SE    SE      SE     S       S     W
Wind char        LT    GN      LT    GN      LT    GN      LT    LT
Avg clouds    SC SC SC SC   SC SC B1 B1   SC B1 B2 B1   SC B1 B1 SC
PoP 12hr         10    10      10    20      20    20      40    20
Rain shwrs                         S          S  S  S    C  C  S  S
Tstms                              S          S  S  S    C  C  S  S

$$
IAZ004-202200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
420 AM CDT Tue Aug 20 2019

Date             Tue 08/20/19            Wed 08/21/19            Thu 08/22/19
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          74          52          74
Temp             68 73 81 84 80 72 68 63 60 64 69 73 71 61 56 54 53 65 72 74 71
Dewpt            67 70 73 74 73 69 66 61 57 57 57 56 57 56 53 51 51 55 55 56 57
RH               97 90 77 72 79 90 93 93 90 78 66 55 61 84 90 90 93 70 55 53 61
Wind dir          S  S  W NW  N  N  N  N  N NE NE  N  N  N  N NE NE  E  E  E  E
Wind spd          6  8  6  8  8  6  8  8  6  6  5  5  4  2  2  2  2  5  6  6  5
Clouds           OV B2 B1 B1 SC SC B1 B1 B1 OV B2 B2 SC FW FW FW FW FW FW SC SC
PoP 12hr                     30          20          20           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C                       S
Tstms             C                       S
Heat index             86 91
Max heat               86    91
Svr Tstorm


Date          Fri 08/23/19  Sat 08/24/19  Sun 08/25/19  Mon 08/26/19
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      59    76      62    80      62    80
Temp          57 54 73 73   63 60 73 74   64 62 76 77   66 63 77 77
Dewpt         54 53 58 60   58 58 61 62   61 62 65 69   65 63 64 64
PWind dir         E    SE      SE     S       S     S       S     W
Wind char        LT    GN      GN    GN      GN    GN      LT    LT
Avg clouds    SC FW SC SC   SC B1 B1 B1   SC B2 B2 B1   B1 B1 SC SC
PoP 12hr          5    10      20    20      30    30      40    20
Rain shwrs                   S  S  S          C  C  C    C  C  S  S
Tstms                        S  S  S          C  C  C    C  C  S  S

$$
IAZ035-202200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
420 AM CDT Tue Aug 20 2019

Date             Tue 08/20/19            Wed 08/21/19            Thu 08/22/19
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          64          75          55          77
Temp             69 75 81 87 83 76 71 68 64 68 73 75 75 64 60 57 56 68 75 77 73
Dewpt            68 70 73 75 76 74 71 68 64 63 63 61 62 59 56 53 53 58 58 59 59
RH               97 84 77 68 80 94100100100 84 71 62 64 84 87 86 90 70 55 54 62
Wind dir         SE  S SW NW  N  N  N  N  N NE NE NE NE NE NE NE NE  E  E  E  E
Wind spd          6  8  6  5  3  3  4  6  6  6  6  4  3  2  2  2  2  4  6  5  5
Clouds           OV B1 SC SC SC SC SC OV OV OV B2 B2 B1 FW SC SC SC SC SC SC SC
PoP 12hr                     30          40          50          10          10
QPF 12hr                      0           0        0.05           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C                    C  C  C
Tstms             C                    C  C  C
Heat index             86 96 91
Max heat               88    98    87
Svr Tstorm


Date          Fri 08/23/19  Sat 08/24/19  Sun 08/25/19  Mon 08/26/19
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    77      59    78      62    82      64    82
Temp          59 56 75 74   62 59 74 76   65 63 77 80   68 65 80 79
Dewpt         57 55 60 62   60 58 62 64   63 62 67 70   68 64 67 68
PWind dir         E    SE      SE    SE       S     S       S     W
Wind char        LT    GN      LT    GN      GN    GN      LT    LT
Avg clouds    SC SC SC SC   SC B1 B1 B1   SC B1 B2 B1   B1 B1 B1 SC
PoP 12hr         10    10      20    20      30    30      40    20
Rain shwrs                      S  S          C  C  S    C  C  S  S
Tstms                           S  S          C  C  S    C  C  S  S

$$
IAZ094-202200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
420 AM CDT Tue Aug 20 2019

Date             Tue 08/20/19            Wed 08/21/19            Thu 08/22/19
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          71          80          61          77
Temp             73 78 84 88 88 79 77 75 71 77 80 78 75 69 66 65 61 70 76 77 74
Dewpt            72 72 73 74 76 75 74 73 71 70 70 69 67 67 65 63 61 62 62 63 63
RH               97 82 70 63 68 88 90 94100 79 72 74 76 93 97 93100 76 62 62 69
Wind dir         SE  S SW SW SW NW  W NE NE NE NE NE NE NE NE NE NE  E  E  E  E
Wind spd          6  8 11  8  2  2  2  2  6  5  5  5  4  4  3  4  5  5  8  6  5
Wind gust                                   16 17
Clouds           OV B2 B1 FW FW SC SC B2 OV OV OV B2 OV B2 B2 B1 B2 B2 B2 B2 B1
PoP 12hr                     60          90          90          50          40
QPF 12hr                   0.36        0.45        0.51        1.53        0.63
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        L  S              L  D  D  L  C  C  C  C  C  C  C  C  C  C  S
Tstms             L  S              L  D  D  L  C  C  C  C  C  C  C  C  C  C  S
Heat index             90 98 99
Max heat               92   102    96          85    83
Svr Tstorm


Date          Fri 08/23/19  Sat 08/24/19  Sun 08/25/19  Mon 08/26/19
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    78      62    78      64    83      66    83
Temp          65 61 76 76   65 62 76 77   66 65 79 80   71 66 81 81
Dewpt         62 60 65 65   63 60 64 65   65 64 70 71   69 66 69 70
PWind dir         E     E      SE    SE      SE     S       S    SW
Wind char        LT    GN      LT    LT      LT    GN      LT    LT
Avg clouds    B1 B1 B1 SC   SC B1 B1 B1   SC SC B1 SC   SC SC SC SC
PoP 12hr         20    10      20    20      20    20      30    30
Rain shwrs     S  S             S  S          S  S  S    S  C  C  S
Tstms          S  S             S  S          S  S  S    S  C  C  S

$$
IAZ017-202200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
420 AM CDT Tue Aug 20 2019

Date             Tue 08/20/19            Wed 08/21/19            Thu 08/22/19
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          62          76          52          77
Temp             65 74 83 85 82 73 69 65 62 67 73 76 74 62 57 54 53 68 74 77 73
Dewpt            64 68 71 73 73 71 69 64 61 59 58 55 56 55 54 51 51 55 53 54 55
RH               97 82 67 67 74 93100 97 97 75 59 48 53 78 90 90 93 63 48 45 53
Wind dir         SE  S SW NW NW  N  N  N  N  N  N  N  N  N  N  N NE  E  E  E  E
Wind spd          5  8  6  6  4  3  5  5  5  6  5  5  4  2  1  2  2  3  4  5  4
Clouds           OV B2 B1 SC SC B1 SC SC B1 OV B2 B2 B1 FW FW FW SC FW FW SC SC
PoP 12hr                     40          20          20           0           0
QPF 12hr                   0.01           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C
Tstms             C
Heat index             88 92 87
Max heat               88    92    84
Svr Tstorm


Date          Fri 08/23/19  Sat 08/24/19  Sun 08/25/19  Mon 08/26/19
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    77      57    78      60    81      63    82
Temp          58 54 74 73   61 58 76 76   62 61 76 77   67 64 79 78
Dewpt         53 53 55 57   57 56 57 59   60 61 63 65   66 64 65 65
PWind dir         E    SE      SE    SE       S     S       S     W
Wind char        LT    GN      LT    GN      GN    GN      LT    LT
Avg clouds    SC FW FW SC   SC SC B1 SC   SC B1 B2 B1   B1 B1 B1 SC
PoP 12hr          5     5      20    20      20    30      40    20
Rain shwrs                      S  S          S  C  S    C  C  S  S
Tstms                           S  S          S  C  S    C  C  S  S

$$
IAZ049-202200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
420 AM CDT Tue Aug 20 2019

Date             Tue 08/20/19            Wed 08/21/19            Thu 08/22/19
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          66          77          54          76
Temp             67 73 82 86 83 74 72 67 66 71 75 77 75 64 59 55 55 68 75 76 73
Dewpt            67 69 73 74 75 73 72 67 66 66 65 63 62 59 57 53 53 57 57 57 58
RH              100 87 74 68 77 97100100100 84 71 62 64 84 93 93 93 68 54 52 59
Wind dir         SE  S SW  W NW NW  N  N  N  N  N  N  N  N NE NE NE  E  E  E  E
Wind spd          8  8  6  5  2  2  2  3  5  5  5  4  3  2  2  1  2  3  4  5  3
Clouds           OV OV SC SC FW SC B1 B2 OV OV B2 B2 B1 SC SC SC SC SC SC SC SC
PoP 12hr                     80          40          50          10          10
QPF 12hr                   0.09           0        0.05           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        D  S                 C  C  C  S  S
Tstms             D  S                 C  C  C  S  S
Heat index                94 90
Max heat               87    95    86
Svr Tstorm


Date          Fri 08/23/19  Sat 08/24/19  Sun 08/25/19  Mon 08/26/19
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          54    76      56    77      60    80      63    83
Temp          58 55 74 73   59 57 74 75   63 61 77 77   67 64 80 79
Dewpt         56 54 59 60   58 56 60 61   61 61 66 67   66 64 68 68
PWind dir         E     E      SE    SE      SE     S       S    SW
Wind char        LT    LT      LT    LT      LT    GN      LT    LT
Avg clouds    SC SC SC SC   SC SC B1 SC   SC B1 B2 B1   B1 B1 B1 SC
PoP 12hr         10    10      10    10      20    20      40    30
Rain shwrs                                    S  S  S    C  C  C  S
Tstms                                         S  S  S    C  C  C  S

$$
IAZ086-202200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
420 AM CDT Tue Aug 20 2019

Date             Tue 08/20/19            Wed 08/21/19            Thu 08/22/19
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          71          81          60          79
Temp             71 75 83 89 86 78 75 72 72 76 80 81 76 70 65 63 60 71 77 79 76
Dewpt            69 70 73 75 76 74 73 72 71 69 69 67 66 64 62 59 58 60 60 60 61
RH               93 84 72 64 72 88 94100 97 79 69 63 71 81 90 87 93 68 56 52 60
Wind dir         SE SE SW SW  W SW  N NW  N  N  N  N NE NE NE NE NE NE  E  E  E
Wind spd          8  8 11  8  3  2  2  2  3  5  5  5  3  3  3  3  3  3  5  5  5
Wind gust                                      16
Clouds           OV OV B1 SC FW SC SC B1 B2 B2 OV B2 B2 B2 B1 SC B1 B1 B1 SC SC
PoP 12hr                     80          50          70          30          30
QPF 12hr                   0.66        0.02        0.20        0.05        0.09
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        D  C                 C  L  L  C  C  C  C  C  C  C  C  S  S
Tstms             D  C                 C  L  L  C  C  C  C  C  C  C  C  S  S
Heat index             89 99 96
Max heat               90    99    93          85    85
Svr Tstorm


Date          Fri 08/23/19  Sat 08/24/19  Sun 08/25/19  Mon 08/26/19
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    79      59    79      62    83      66    85
Temp          63 59 76 75   64 59 77 77   65 63 80 80   69 67 83 82
Dewpt         59 58 60 61   60 57 62 62   63 62 66 68   67 66 68 69
PWind dir         E     E       E    SE      SE     S       S    SW
Wind char        LT    LT      LT    LT      LT    GN      LT    LT
Avg clouds    SC SC SC SC   SC SC B1 SC   SC SC B1 SC   SC SC SC SC
PoP 12hr         20    20      10    10      20    20      40    30
Rain shwrs        S  S                        S  S  S    S  C  C  S
Tstms             S  S                        S  S  S    S  C  C  S

$$



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