There were 17 convective periods for July 2004:
Start: 02/17Z End: 02/20Z Flow Regime: Other   radar/wind loop
Start: 03/22Z End: 04/02Z Flow Regime: SW-2    radar/wind loop
Start: 04/22Z End: 05/03Z Flow Regime: SW-2    radar/wind loop
Start: 05/17Z End: 06/00Z Flow Regime: SE-1    radar/wind loop
Start: 06/19Z End: 06/23Z Flow Regime: Other   radar/wind loop
Start: 07/16Z End: 08/01Z Flow Regime: SW-2    radar/wind loop
Start: 11/17Z End: 11/22Z Flow Regime: NW      radar/wind loop
Start: 14/00Z End: 14/06Z Flow Regime: SW-2    radar/wind loop
Start: 15/17Z End: 16/01Z Flow Regime: SW-2    radar/wind loop
Start: 16/17Z End: 16/22Z Flow Regime: SW-2    radar/wind loop
Start: 17/16Z End: 17/20Z Flow Regime: SW-1    radar/wind loop
Start: 18/16Z End: 18/19Z Flow Regime: SW-2    radar/wind loop
Start: 19/11Z End: 19/14Z Flow Regime: SW-1    radar/wind loop
Start: 20/16Z End: 20/23Z Flow Regime: SW-1    radar/wind loop
Start: 27/17Z End: 28/01Z Flow Regime: SW-1    radar/wind loop
Start: 29/14Z End: 29/23Z Flow Regime: SE-2    radar/wind loop
Start: 31/13Z End: 01/03Z Flow Regime: NW      Continued into August   radar/wind loop
 
Start: 02/17Z End: 02/20Z Flow Regime: Other   radar/wind loop
 No peak winds >= 20 knots were reported
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 17 knots from 118 degrees for tower 1102 at 162 feet on 021705Z
 
Start: 03/22Z End: 04/02Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 032200Z   Last at 040050Z
 First peak wind >= 35 knots at 032205Z   Last at 032205Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 36 knots from 326 degrees for tower 1612 at 054 feet on 032205Z
 
Start: 04/22Z End: 05/03Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 042245Z   Last at 050300Z
 First peak wind >= 35 knots at 042300Z   Last at 042325Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 43 knots from 342 degrees for tower 0394 at 060 feet on 042325Z
 
Start: 05/17Z End: 06/00Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 052230Z   Last at 052250Z
 First peak wind >= 35 knots at 052245Z   Last at 052245Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 37 knots from 259 degrees for tower 1612 at 054 feet on 052245Z
 
Start: 06/19Z End: 06/23Z Flow Regime: Other   radar/wind loop
 First peak wind >= 20 knots at 062045Z   Last at 062140Z
 First peak wind >= 35 knots at 062055Z   Last at 062105Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 43 knots from 325 degrees for tower 1012 at 054 feet on 062100Z
 
Start: 07/16Z End: 08/01Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 071755Z   Last at 072350Z
 First peak wind >= 35 knots at 071810Z   Last at 072045Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 46 knots from 288 degrees for tower 0022 at 054 feet on 072035Z
 
Start: 11/17Z End: 11/22Z Flow Regime: NW      radar/wind loop
 First peak wind >= 20 knots at 111750Z   Last at 112025Z
 First peak wind >= 35 knots at 111830Z   Last at 111930Z
 First peak wind >= 50 knots at 111835Z   Last at 111835Z
 Max peak wind reported was 57 knots from 075 degrees for tower 0022 at 054 feet on 111835Z
 
Start: 14/00Z End: 14/06Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 140035Z   Last at 140450Z
 First peak wind >= 35 knots at 140120Z   Last at 140205Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 37 knots from 286 degrees for tower 0019 at 054 feet on 140205Z
 
Start: 15/17Z End: 16/01Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 151720Z   Last at 152230Z
 First peak wind >= 35 knots at 151935Z   Last at 151950Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 45 knots from 223 degrees for tower 0001 at 054 feet on 151950Z
 
Start: 16/17Z End: 16/22Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 161710Z   Last at 162200Z
 First peak wind >= 35 knots at 162035Z   Last at 162045Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 43 knots from 226 degrees for tower 0412 at 054 feet on 162040Z
 
Start: 17/16Z End: 17/20Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 171600Z   Last at 171935Z
 First peak wind >= 35 knots at 171730Z   Last at 171740Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 38 knots from 207 degrees for tower 1007 at 054 feet on 171730Z
 
Start: 18/16Z End: 18/19Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 181600Z   Last at 181855Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 34 knots from 265 degrees for tower 3131 at 204 feet on 181725Z
 
Start: 19/11Z End: 19/14Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 191100Z   Last at 191400Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 27 knots from 207 degrees for tower 3131 at 295 feet on 191330Z
 
Start: 20/16Z End: 20/23Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 201655Z   Last at 201840Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 32 knots from 246 degrees for tower 0211 at 054 feet on 201710Z
 
Start: 27/17Z End: 28/01Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 271935Z   Last at 280000Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 25 knots from 176 degrees for tower 1612 at 054 feet on 271955Z
 
Start: 29/14Z End: 29/23Z Flow Regime: SE-2    radar/wind loop
 First peak wind >= 20 knots at 291740Z   Last at 292300Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 24 knots from 098 degrees for tower 0021 at 090 feet on 292140Z
 
Start: 31/13Z End: 01/03Z Flow Regime: NW       Continued into August   radar/wind loop
 First peak wind >= 20 knots at 311620Z   Last at 312320Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 30 knots from 228 degrees for tower 9404 at 054 feet on 312310Z