There were 21 convective periods for August 1998:
Start: 01/18Z End: 01/20Z Flow Regime: SW-2    radar/wind loop
Start: 02/07Z End: 02/09Z Flow Regime: SW-2    radar/wind loop
Start: 02/16Z End: 03/05Z Flow Regime: SW-2    radar/wind loop
Start: 03/20Z End: 03/23Z Flow Regime: SW-2    radar/wind loop
Start: 04/16Z End: 05/05Z Flow Regime: Other   radar/wind loop
Start: 05/16Z End: 06/00Z Flow Regime: SW-2    radar/wind loop
Start: 06/16Z End: 06/21Z Flow Regime: SW-2    radar/wind loop
Start: 07/14Z End: 07/18Z Flow Regime: SE-1    radar/wind loop
Start: 10/15Z End: 11/00Z Flow Regime: Other   radar/wind loop
Start: 12/01Z End: 12/08Z Flow Regime: SW-2    radar/wind loop
Start: 13/02Z End: 13/06Z Flow Regime: SW-2    radar/wind loop
Start: 13/19Z End: 13/23Z Flow Regime: SW-2    radar/wind loop
Start: 14/18Z End: 14/21Z Flow Regime: SW-2    radar/wind loop
Start: 17/11Z End: 17/20Z Flow Regime: SE-1    radar/wind loop
Start: 18/08Z End: 18/15Z Flow Regime: SE-1    radar/wind loop
Start: 19/08Z End: 20/03Z Flow Regime: SE-1    radar/wind loop
Start: 20/11Z End: 20/19Z Flow Regime: SE-2    radar/wind loop
Start: 21/03Z End: 21/16Z Flow Regime: SE-1    radar/wind loop
Start: 21/22Z End: 22/05Z Flow Regime: SE-1    radar/wind loop
Start: 22/13Z End: 23/02Z Flow Regime: SE-1    radar/wind loop
Start: 23/19Z End: 23/22Z Flow Regime: NE      radar/wind loop
 
Start: 01/18Z End: 01/20Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 011855Z   Last at 011925Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 32 knots from 051 degrees for tower 0805 at 054 feet on 011855Z
 
Start: 02/07Z End: 02/09Z Flow Regime: SW-2    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 131 degrees for tower 0022 at 054 feet on 020815Z
 
Start: 02/16Z End: 03/05Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 021940Z   Last at 030435Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 22 knots from 004 degrees for tower 0022 at 054 feet on 030430Z
 
Start: 03/20Z End: 03/23Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 032000Z   Last at 032210Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 22 knots from 033 degrees for tower 0300 at 054 feet on 032105Z
 
Start: 04/16Z End: 05/05Z 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 039 degrees for tower 0511 at 030 feet on 041705Z
 
Start: 05/16Z End: 06/00Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 051800Z   Last at 052355Z
 First peak wind >= 35 knots at 051855Z   Last at 051855Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 42 knots from 354 degrees for tower 1000 at 054 feet on 051855Z
 
Start: 06/16Z End: 06/21Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 061745Z   Last at 061950Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 32 knots from 169 degrees for tower 0805 at 054 feet on 061750Z
 
Start: 07/14Z End: 07/18Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 071530Z   Last at 071655Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 22 knots from 298 degrees for tower 0714 at 054 feet on 071655Z
 
Start: 10/15Z End: 11/00Z Flow Regime: Other   radar/wind loop
 First peak wind >= 20 knots at 101605Z   Last at 102220Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 26 knots from 357 degrees for tower 0714 at 054 feet on 101950Z
 
Start: 12/01Z End: 12/08Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 120455Z   Last at 120455Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 21 knots from 252 degrees for tower 0421 at 054 feet on 120455Z
 
Start: 13/02Z End: 13/06Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 130300Z   Last at 130530Z
 First peak wind >= 35 knots at 130335Z   Last at 130340Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 38 knots from 241 degrees for tower 0022 at 054 feet on 130335Z
 
Start: 13/19Z End: 13/23Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 131955Z   Last at 132150Z
 First peak wind >= 35 knots at 131955Z   Last at 132110Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 43 knots from 352 degrees for tower 3132 at 295 feet on 132045Z
 
Start: 14/18Z End: 14/21Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 141850Z   Last at 142035Z
 First peak wind >= 35 knots at 141940Z   Last at 142000Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 49 knots from 351 degrees for tower 1007 at 054 feet on 141940Z
 
Start: 17/11Z End: 17/20Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 171205Z   Last at 171855Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 23 knots from 211 degrees for tower 0003 at 054 feet on 171205Z
 
Start: 18/08Z End: 18/15Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 181255Z   Last at 181415Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 30 knots from 117 degrees for tower 0019 at 054 feet on 181255Z
 
Start: 19/08Z End: 20/03Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 191000Z   Last at 200240Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 29 knots from 037 degrees for tower 1007 at 054 feet on 191755Z
 
Start: 20/11Z End: 20/19Z Flow Regime: SE-2    radar/wind loop
 First peak wind >= 20 knots at 201225Z   Last at 201900Z
 First peak wind >= 35 knots at 201505Z   Last at 201900Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 41 knots from 087 degrees for tower 0394 at 060 feet on 201725Z
 
Start: 21/03Z End: 21/16Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 210405Z   Last at 211600Z
 First peak wind >= 35 knots at 210415Z   Last at 211430Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 37 knots from 126 degrees for tower 3131 at 204 feet on 210615Z
 
Start: 21/22Z End: 22/05Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 212220Z   Last at 220320Z
 First peak wind >= 35 knots at 220220Z   Last at 220225Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 40 knots from 135 degrees for tower 0398 at 060 feet on 220220Z
 
Start: 22/13Z End: 23/02Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 221530Z   Last at 230050Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 27 knots from 013 degrees for tower 0019 at 054 feet on 221940Z
 
Start: 23/19Z End: 23/22Z Flow Regime: NE      radar/wind loop
 First peak wind >= 20 knots at 232055Z   Last at 232155Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 21 knots from 025 degrees for tower 0300 at 054 feet on 232155Z