Point Forecast Matrices
Issued by NWS Des Moines, IA

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FOUS53 KDMX 181945
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Point Forecast Matrices
National Weather Service Des Moines IA
244 PM CDT Fri Apr 18 2025

IAZ060-190900-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
244 PM CDT Fri Apr 18 2025

Date           04/18/25      Sat 04/19/25            Sun 04/20/25            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                      42          59          44          52          42
Temp          53 52 51 46 42 42 48 55 59 58 50 46 45 44 47 49 51 51 48 47 44 44
Dewpt         46 44 40 36 33 31 32 30 30 31 32 31 31 34 39 43 45 46 46 44 41 40
RH            77 74 66 68 70 65 54 38 33 36 50 55 58 68 74 80 80 83 93 89 89 86
Wind dir      NW NW NW  N  N  N  N  N NE NE NE  E  E  E  E  E  E NE  N NW NW NW
Wind spd      11 10 10  8  8  8  8  9  8  5  5  5  8 10 12 14 16 14 12 11 12 12
Wind gust                                                     26
Clouds        OV OV B2 B1 B1 B1 SC SC SC B2 B1 B1 B2 B2 OV OV OV OV OV B2 B2 B2
PoP 12hr                     10           0           5          90          80
QPF 12hr                      0           0           0        0.76        0.36
Snow 12hr                 00-00       00-00       00-00
Drizzle        S
Rain shwrs                                            L  L  D  D  D  D  C  C
Tstms                                                             C
Wind chill                                                                38 37
Min chill                    36    38                38    39                36


Date           04/21  Tue 04/22/25  Wed 04/23/25  Thu 04/24/25  Fri 04/25/25
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          65      48    76      50    73      53    74      54    71
Temp          58 63   51 50 70 72   58 53 68 68   58 55 70 71   61 57 67 68
Dewpt         43 46   43 45 54 54   49 47 51 51   50 50 55 56   52 52 55 55
PWind dir        NW      SE     S       S     E       E    SE       E    SE
Wind char        GN      LT    GN      LT    LT      LT    GN      GN    GN
Avg clouds    B1 SC   FW FW SC SC   SC SC B1 B1   B1 B1 B1 B1   B1 B1 B2 B1
PoP 12hr         10      20    40      40    40      40    60      50    50
Rain shwrs                S  C  C    C  C  C  C    C  C  C  L    C  C  C  C
Tstms                     S  S  S    C  S     S       S     S    S  S     S

$$
IAZ039-190900-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
244 PM CDT Fri Apr 18 2025

Date           04/18/25      Sat 04/19/25            Sun 04/20/25            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                      39          58          38          50          41
Temp          55 50 48 44 40 39 46 53 56 55 45 40 38 38 46 48 49 46 44 46 44 42
Dewpt         50 46 42 38 35 32 33 30 30 30 31 30 29 33 37 39 42 42 43 44 42 40
RH            83 86 80 79 82 76 60 41 37 38 58 67 70 82 71 71 77 86 96 93 93 93
Wind dir      NW  N NW NW NW NW  N  N  N  N NE NE  E  E  E  E  E  E NE  N NW NW
Wind spd      14 12 11 10  9  8  9 10  9  5  5  5  6 10 13 14 17 16 14 13 13 13
Clouds        OV OV B2 B1 B1 B1 FW FW SC SC SC SC B1 B2 B2 B2 B2 OV OV OV B2 B2
PoP 12hr                     20           0           0          80          90
QPF 12hr                      0           0           0        0.47        0.61
Snow 12hr                 00-00       00-00       00-00
Drizzle        C
Rain shwrs        S                                   C  C  D  D  D  D  L  L  C
Tstms                                                             S
Wind chill                34 33                      32             36    37 35
Min chill              38    32    34          36    31    34    39    34    33


Date           04/21  Tue 04/22/25  Wed 04/23/25  Thu 04/24/25  Fri 04/25/25
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          61      42    73      48    73      50    74      52    71
Temp          54 58   45 43 65 67   54 49 68 67   54 51 67 68   58 54 66 66
Dewpt         41 42   40 40 51 53   48 45 48 49   47 46 53 54   50 49 54 54
PWind dir        NW       E     S       S    NE       E     E       E     E
Wind char        BZ      LT    GN      LT    GN      LT    GN      GN    GN
Avg clouds    B2 SC   FW FW SC SC   SC SC SC SC   SC B1 B1 B1   B1 B1 B1 B1
PoP 12hr         30      10    40      40    30      40    50      50    40
Rain shwrs     C             C  C    C  C  C  C    C  C  C  C    C  C  C  C
Tstms                        C  S    S  S             S     S    S  S

$$
IAZ048-190900-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
244 PM CDT Fri Apr 18 2025

Date           04/18/25      Sat 04/19/25            Sun 04/20/25            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                      38          59          40          50          41
Temp          53 51 48 43 39 38 46 54 57 57 47 42 40 41 46 48 49 47 45 45 43 42
Dewpt         46 44 39 34 32 31 32 30 30 31 31 31 31 33 38 43 45 46 45 43 41 40
RH            77 77 71 70 76 76 58 40 35 37 53 65 70 73 73 83 86 96100 93 93 93
Wind dir       N  N NW  N  N  N  N  N  N NE NE  E  E  E  E  E  E NE NE  N NW NW
Wind spd      16 11 10  9  9  6  9  9  8  5  5  5  8 10 13 14 16 14 13 12 13 13
Wind gust                                                     26
Clouds        OV OV B2 SC B1 B1 SC SC SC B1 SC B1 B2 B2 B2 B2 OV OV B2 B2 B2 B2
PoP 12hr                      5           0           5          80          90
QPF 12hr                      0           0           0        0.67        0.41
Snow 12hr                 00-00       00-00       00-00
Drizzle        S
Rain shwrs                                            C  C  D  D  D  D  C  C  S
Tstms                                                             S
Wind chill             37                            35 39          39 39 36 35
Min chill              36    32    34          38    33    36          37    34


Date           04/21  Tue 04/22/25  Wed 04/23/25  Thu 04/24/25  Fri 04/25/25
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          64      45    75      48    73      51    73      52    71
Temp          56 61   48 47 69 70   55 51 68 67   55 53 69 68   58 55 66 67
Dewpt         43 46   43 44 55 54   48 46 50 51   49 49 56 56   52 52 56 55
PWind dir        NW      SE     S      SE    NE       E    SE       E    SE
Wind char        GN      LT    GN      LT    GN      LT    GN      GN    GN
Avg clouds    B1 SC   FW FW SC SC   SC SC SC SC   SC B1 B1 B1   B2 B2 B2 B1
PoP 12hr         20      20    40      40    40      40    60      50    50
Rain shwrs     S          S  C  C    C  C  C  C    C  C  C  L    C  C  C  C
Tstms                     S  S  S    S  S     S       S     S    S  S     S

$$
IAZ004-190900-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
244 PM CDT Fri Apr 18 2025

Date           04/18/25      Sat 04/19/25            Sun 04/20/25            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                      32          56          34          54          39
Temp          55 49 43 38 34 32 43 51 55 54 44 39 36 34 46 53 53 47 42 41 40 40
Dewpt         36 30 28 27 26 25 27 27 26 26 28 27 27 28 31 34 38 40 39 38 37 36
RH            49 48 55 64 72 75 53 39 32 34 53 62 69 78 55 48 57 76 89 89 89 85
Wind dir       N  N  N  N  N NW  N  N NW NE  E SE  E  E  E  E  E NE NE  N  N NW
Wind spd      21 18 13 10  8  5  8 10  8  5  6  6  6  8 12 14 16 14 13 12 13 13
Clouds        B2 B2 B1 FW SC FW FW FW FW CL FW FW SC B1 B1 B2 OV OV OV B2 B2 B2
PoP 12hr                      5           0           0          50          70
QPF 12hr                      0           0           0        0.21        0.30
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                  C  C  L  L  C  C  S
Wind chill          36 31 27 26                   30 28             34 34 33 33
Min chill              31    25    29          32    27    31          33    31


Date           04/21  Tue 04/22/25  Wed 04/23/25  Thu 04/24/25  Fri 04/25/25
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          63      43    72      43    70      45    66      48    67
Temp          56 61   47 44 66 67   50 46 65 66   50 48 61 62   52 50 63 63
Dewpt         38 39   39 40 47 44   39 37 40 40   39 41 48 51   48 47 52 50
PWind dir        NW      SE    SW      NW     N       E     E       E     E
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 FW   FW SC SC FW   FW SC SC FW   SC B1 B2 B2   B2 B2 B2 B1
PoP 12hr         20      30    30      20    20      30    60      50    40
Rain shwrs     S          C  C  C    S  S  S  S    S  C  C  L    C  C  C  C
Tstms                     S                           S     S    S

$$
IAZ035-190900-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
244 PM CDT Fri Apr 18 2025

Date           04/18/25      Sat 04/19/25            Sun 04/20/25            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                      34          57          37          51          39
Temp          54 51 45 41 36 34 45 52 56 55 45 40 38 37 46 49 49 46 42 42 41 40
Dewpt         43 38 33 30 29 28 30 29 29 28 29 30 29 31 34 40 42 42 41 40 39 38
RH            66 61 62 65 75 78 55 41 35 35 53 67 70 79 63 71 77 86 96 93 92 92
Wind dir       N  N  N  N  N  N  N  N  N NE  E  E  E  E  E  E  E NE NE  N NW NW
Wind spd      16 13 10  8  5  5  6  9  8  5  4  5  5  6 11 13 14 13 11 10 11 11
Clouds        OV B2 B1 SC SC SC FW FW FW FW FW SC B1 B2 B2 OV OV OV OV OV B2 B2
PoP 12hr                      5           0           0          70          80
QPF 12hr                      0           0           0        0.51        0.40
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                            C  C  L  L  D  D  L  L  S
Tstms                                                             S
Wind chill                30                                        36 36 34 33
Min chill              35    29    32          36    31    34    39    34    32


Date           04/21  Tue 04/22/25  Wed 04/23/25  Thu 04/24/25  Fri 04/25/25
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          63      44    74      45    72      49    70      50    69
Temp          55 61   47 45 67 69   53 47 67 67   53 50 65 65   55 52 65 65
Dewpt         41 43   41 43 51 50   45 41 44 46   46 46 53 54   50 50 54 54
PWind dir        NW      SE    SW      NW    NE       E    SE       E    SE
Wind char        GN      LT    GN      LT    LT      LT    GN      GN    GN
Avg clouds    B1 SC   FW SC SC SC   FW SC SC SC   SC B1 B1 B2   B2 B2 B2 B1
PoP 12hr         20      30    40      30    30      40    60      50    40
Rain shwrs     S          C  C  C    C  S  C  C    C  C  C  L    C  C  C  C
Tstms                     S     S    S                S     S    S  S     S

$$
IAZ094-190900-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
244 PM CDT Fri Apr 18 2025

Date           04/18/25      Sat 04/19/25            Sun 04/20/25            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                      42          59          44          56          42
Temp          55 53 51 47 44 42 49 55 58 57 51 48 46 45 47 53 55 54 50 48 44 43
Dewpt         47 45 43 38 34 32 33 31 31 30 32 33 33 38 44 47 49 49 48 45 42 41
RH            74 74 74 71 68 67 54 40 36 35 48 56 60 76 89 80 80 83 93 89 93 93
Wind dir      NW  N  N  N  N  N  N NE NE NE  E  E  E  E  E  E  E NE NW NW NW  W
Wind spd      12 10 10 10 10 10 10 11 11  9  8  9 10 12 14 16 16 14 13 12 12 12
Wind gust                                                  27 27
Clouds        B2 OV B2 B2 B2 B2 B1 SC B1 OV B2 B2 B2 OV B2 OV B2 OV B2 B2 B2 B2
PoP 12hr                     10          10          20          90          80
QPF 12hr                      0           0        0.03        1.02        0.25
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      C  C  D  D  D  D  D  D  C  C
Tstms                                                       S     C
Wind chill                38 36                      39                   38 36
Min chill                    36    37                38    39                35


Date           04/21  Tue 04/22/25  Wed 04/23/25  Thu 04/24/25  Fri 04/25/25
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          65      49    76      51    73      53    74      55    72
Temp          59 63   52 50 71 70   58 53 69 68   58 55 70 71   61 58 69 68
Dewpt         45 48   46 47 55 54   51 49 54 54   52 52 57 55   55 55 57 55
PWind dir         W       S     S       S     E       E    SE      SE    SE
Wind char        GN      LT    GN      LT    GN      GN    GN      GN    GN
Avg clouds    B1 FW   CL FW FW SC   SC B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1
PoP 12hr         10      20    30      40    50      40    60      50    50
Rain shwrs                S  S  C    C  C  C  C    C  C  C  L    C  C  C  C
Tstms                                C        C             S    S  S  S  S

$$
IAZ017-190900-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
244 PM CDT Fri Apr 18 2025

Date           04/18/25      Sat 04/19/25            Sun 04/20/25            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                      34          55          34          52          38
Temp          51 48 44 39 35 34 43 49 53 52 43 38 35 34 45 49 50 45 41 41 40 39
Dewpt         44 41 36 32 30 28 30 29 29 29 29 28 27 28 33 38 41 41 40 39 38 37
RH            77 77 73 76 82 78 60 46 39 41 57 67 72 78 62 66 71 86 96 92 92 92
Wind dir       N  N NW NW NW NW  N  N  N NE  E  E  E  E  E  E  E  E NE  N  N NW
Wind spd      16 12 12 10  9  8 10 11  9  5  4  5  6  9 12 14 16 14 13 13 13 13
Clouds        OV B2 B2 SC SC SC FW FW CL FW FW FW SC B1 B2 OV B2 OV OV OV B2 B2
PoP 12hr                      5           0           0          60          80
QPF 12hr                      0           0           0        0.38        0.63
Snow 12hr                 00-00       00-00       00-00
Drizzle        S
Rain shwrs                                            S  S  L  L  D  D  L  L  C
Wind chill          38 32 28 28 37                   28 39       39 33 34 32 31
Min chill              31    26    29          33    27    31    38    33    31


Date           04/21  Tue 04/22/25  Wed 04/23/25  Thu 04/24/25  Fri 04/25/25
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          60      41    71      44    69      47    66      49    66
Temp          52 57   44 43 62 65   52 46 64 64   50 48 62 62   53 50 63 63
Dewpt         40 41   38 39 50 50   44 41 44 44   44 43 50 52   50 47 53 52
PWind dir        NW      SE     S       W     N       E     E       E    SE
Wind char        GN      LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    B2 SC   FW SC B1 SC   FW SC SC SC   SC SC B1 B2   B2 B2 B2 B1
PoP 12hr         30      20    40      30    20      30    50      50    40
Rain shwrs     C          S  C  C    C  S  S  S    S  C  C  C    C  C  C  C
Tstms                     S  S  S    S                S     S    S  S     S

$$
IAZ049-190900-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
244 PM CDT Fri Apr 18 2025

Date           04/18/25      Sat 04/19/25            Sun 04/20/25            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                      37          58          39          51          40
Temp          54 50 47 42 39 37 46 53 56 55 45 41 40 39 46 48 49 48 44 45 42 41
Dewpt         48 45 41 36 33 31 32 30 30 30 30 30 29 33 38 41 44 44 43 44 40 39
RH            80 83 79 79 79 79 58 41 37 38 55 65 64 79 73 77 83 86 96 96 93 92
Wind dir       N  N NW  N  N  N  N  N  N NE NE NE  E  E  E  E  E  E NE NW NW NW
Wind spd      17 12 10  9  8  8  9 10  8  5  4  5  6 10 13 16 17 14 13 11 13 13
Clouds        OV OV B2 B1 B1 B1 SC FW SC SC B1 B1 B2 B2 B2 B2 B2 OV OV B2 B2 B2
PoP 12hr                     20           0           5          80          90
QPF 12hr                      0           0           0        0.57        0.55
Snow 12hr                 00-00       00-00       00-00
Drizzle        C
Rain shwrs        S                                   C  C  D  D  D  D  L  L  S
Tstms                                                             S
Wind chill                33                         33             37 39 35 33
Min chill              36    30    32          36    32    35          36    32


Date           04/21  Tue 04/22/25  Wed 04/23/25  Thu 04/24/25  Fri 04/25/25
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          62      42    74      48    72      50    74      51    70
Temp          55 58   45 44 67 68   54 49 67 66   53 51 68 68   57 53 66 66
Dewpt         42 44   41 41 54 54   47 45 50 50   48 47 54 54   50 50 54 54
PWind dir        NW      SE     S       S    NE       E    SE       E    SE
Wind char        GN      LT    GN      LT    LT      LT    GN      GN    GN
Avg clouds    B1 SC   FW FW SC SC   SC SC SC SC   B1 B1 B1 B1   B2 B2 B1 B1
PoP 12hr         20      20    40      40    30      40    50      50    40
Rain shwrs     S          S  C  C    C  C  C  C    C  C  C  C    C  C  C  C
Tstms                     S  S  S    S  S     S       S     S    S  S

$$
IAZ086-190900-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
244 PM CDT Fri Apr 18 2025

Date           04/18/25      Sat 04/19/25            Sun 04/20/25            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                      44          60          44          56          44
Temp          60 56 52 51 46 44 50 56 59 58 51 48 47 45 49 51 55 55 51 51 48 45
Dewpt         52 48 45 42 39 36 36 33 32 32 33 34 34 40 44 47 49 51 51 49 46 43
RH            75 74 77 71 76 73 58 42 36 37 50 58 60 82 83 86 80 86100 93 93 93
Wind dir       W NW NW  N  N  N  N  N NE NE NE NE  E  E  E  E  E  E SW  W  W  W
Wind spd      16 13 11 10  9  9 10 10  9  8  6  8 10 12 14 16 17 14 13 12 13 14
Wind gust                                                  26 27 25 24    24
Clouds        B2 OV OV B2 B2 B2 B1 SC B1 B2 B2 B2 B2 B2 B2 B2 B2 OV B2 B2 B2 B2
PoP 12hr                      5          10          20          90          90
QPF 12hr                      0           0        0.01        1.01        0.47
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      S  S  L  L  D  D  D  D  C  C  S
Tstms                                                    S  S     C
Wind chill                                                                   39
Min chill                    38    37                39                      38


Date           04/21  Tue 04/22/25  Wed 04/23/25  Thu 04/24/25  Fri 04/25/25
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          63      45    77      52    74      53    76      55    73
Temp          56 61   49 48 71 72   58 54 70 69   58 55 72 72   61 57 70 69
Dewpt         44 47   44 44 56 56   53 50 54 54   52 51 57 55   54 53 58 56
PWind dir         W      SE     S       S     E       E    SE      SE    SE
Wind char        GN      LT    GN      LT    GN      LT    GN      GN    GN
Avg clouds    B1 SC   FW FW FW SC   SC SC SC SC   B1 B1 B1 B1   B1 B1 B1 B1
PoP 12hr         20      10    30      40    40      40    50      50    50
Rain shwrs     S             S  C    C  C  C  C    C  C  C  C    C  C  C  C
Tstms                                C        C             S    S  S     S

$$