There were 21 convective periods for August 1997:
Start: 02/20Z End: 03/03Z Flow Regime: SW-2    radar/wind loop
Start: 03/17Z End: 03/22Z Flow Regime: SW-1    radar/wind loop
Start: 04/17Z End: 04/21Z Flow Regime: SW-2    radar/wind loop
Start: 05/16Z End: 05/20Z Flow Regime: SW-2    radar/wind loop
Start: 06/18Z End: 07/00Z Flow Regime: SW-2    radar/wind loop
Start: 07/18Z End: 08/01Z Flow Regime: SW-1    radar/wind loop
Start: 09/13Z End: 09/17Z Flow Regime: SE-1    radar/wind loop
Start: 10/17Z End: 11/00Z Flow Regime: SE-2    radar/wind loop
Start: 11/16Z End: 11/22Z Flow Regime: Other   radar/wind loop
Start: 13/18Z End: 13/22Z Flow Regime: Other   radar/wind loop
Start: 15/17Z End: 15/21Z Flow Regime: Other   radar/wind loop
Start: 17/14Z End: 17/18Z Flow Regime: SE-1    radar/wind loop
Start: 18/16Z End: 18/20Z Flow Regime: SE-1    radar/wind loop
Start: 19/16Z End: 19/21Z Flow Regime: Other   radar/wind loop
Start: 20/20Z End: 21/00Z Flow Regime: SW-2    radar/wind loop
Start: 21/15Z End: 21/20Z Flow Regime: SW-1    radar/wind loop
Start: 22/17Z End: 22/23Z Flow Regime: SW-1    radar/wind loop
Start: 23/19Z End: 24/02Z Flow Regime: SW-1    radar/wind loop
Start: 26/03Z End: 26/08Z Flow Regime: NW      radar/wind loop
Start: 26/22Z End: 27/01Z Flow Regime: NW      radar/wind loop
Start: 31/23Z End: 01/22Z Flow Regime: SE-1    Continued into September   radar/wind loop
 
Start: 02/20Z End: 03/03Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 022005Z   Last at 030205Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 34 knots from 231 degrees for tower 0021 at 204 feet on 030120Z
 
Start: 03/17Z End: 03/22Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 032005Z   Last at 032140Z
 First peak wind >= 35 knots at 032100Z   Last at 032100Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 38 knots from 250 degrees for tower 1102 at 162 feet on 032100Z
 
Start: 04/17Z End: 04/21Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 041830Z   Last at 041940Z
 First peak wind >= 35 knots at 041855Z   Last at 041930Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 42 knots from 310 degrees for tower 1101 at 162 feet on 041925Z
 
Start: 05/16Z End: 05/20Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 051615Z   Last at 052000Z
 First peak wind >= 35 knots at 051820Z   Last at 051820Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 35 knots from 259 degrees for tower 1102 at 204 feet on 051820Z
 
Start: 06/18Z End: 07/00Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 062255Z   Last at 062335Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 25 knots from 220 degrees for tower 0421 at 054 feet on 062310Z
 
Start: 07/18Z End: 08/01Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 072005Z   Last at 072340Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 23 knots from 139 degrees for tower 1007 at 054 feet on 072045Z
 
Start: 09/13Z End: 09/17Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 091535Z   Last at 091535Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 20 knots from 001 degrees for tower 0403 at 054 feet on 091535Z
 
Start: 10/17Z End: 11/00Z Flow Regime: SE-2    radar/wind loop
 First peak wind >= 20 knots at 101940Z   Last at 110000Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 33 knots from 186 degrees for tower 0509 at 054 feet on 102025Z
 
Start: 11/16Z End: 11/22Z 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 19 knots from 072 degrees for tower 1612 at 054 feet on 111845Z
 
Start: 13/18Z End: 13/22Z Flow Regime: Other   radar/wind loop
 First peak wind >= 20 knots at 132050Z   Last at 132120Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 34 knots from 081 degrees for tower 1612 at 054 feet on 132055Z
 
Start: 15/17Z End: 15/21Z Flow Regime: Other   radar/wind loop
 First peak wind >= 20 knots at 151810Z   Last at 152030Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 27 knots from 239 degrees for tower 0403 at 054 feet on 151850Z
 
Start: 17/14Z End: 17/18Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 171515Z   Last at 171635Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 23 knots from 326 degrees for tower 0300 at 054 feet on 171620Z
 
Start: 18/16Z End: 18/20Z Flow Regime: SE-1    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 19 knots from 144 degrees for tower 1007 at 054 feet on 181915Z
 
Start: 19/16Z End: 19/21Z Flow Regime: Other   radar/wind loop
 First peak wind >= 20 knots at 191730Z   Last at 191920Z
 First peak wind >= 35 knots at 191750Z   Last at 191830Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 38 knots from 003 degrees for tower 0003 at 054 feet on 191830Z
 
Start: 20/20Z End: 21/00Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 202100Z   Last at 202310Z
 First peak wind >= 35 knots at 202140Z   Last at 202225Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 46 knots from 302 degrees for tower 0300 at 054 feet on 202220Z
 
Start: 21/15Z End: 21/20Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 211735Z   Last at 212000Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 30 knots from 174 degrees for tower 0003 at 054 feet on 211755Z
 
Start: 22/17Z End: 22/23Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 221935Z   Last at 222050Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 22 knots from 202 degrees for tower 0062 at 204 feet on 221940Z
 
Start: 23/19Z End: 24/02Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 232010Z   Last at 240040Z
 First peak wind >= 35 knots at 232100Z   Last at 232100Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 39 knots from 164 degrees for tower 1000 at 054 feet on 232100Z
 
Start: 26/03Z End: 26/08Z Flow Regime: NW      radar/wind loop
 First peak wind >= 20 knots at 260530Z   Last at 260620Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 24 knots from 001 degrees for tower 0022 at 054 feet on 260550Z
 
Start: 26/22Z End: 27/01Z Flow Regime: NW      radar/wind loop
 First peak wind >= 20 knots at 262200Z   Last at 270025Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 23 knots from 007 degrees for tower 0022 at 054 feet on 262255Z
 
Start: 31/23Z End: 01/22Z Flow Regime: SE-1    Continued into September   radar/wind loop
 First peak wind >= 20 knots at 312300Z   Last at 312350Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 32 knots from 077 degrees for tower 3132 at 295 feet on 312320Z