There were 8 convective periods for September 2001:
Start: 02/20Z End: 02/23Z Flow Regime: SW-2    radar/wind loop
Start: 05/01Z End: 05/07Z Flow Regime: SE-1    radar/wind loop
Start: 05/14Z End: 05/20Z Flow Regime: SE-1    radar/wind loop
Start: 20/19Z End: 20/22Z Flow Regime: SW-2    radar/wind loop
Start: 24/15Z End: 25/03Z Flow Regime: SW-2    radar/wind loop
Start: 25/16Z End: 26/02Z Flow Regime: SW-1    radar/wind loop
Start: 28/12Z End: 28/23Z Flow Regime: Other   radar/wind loop
Start: 29/10Z End: 29/13Z Flow Regime: NE      radar/wind loop
 
Start: 02/20Z End: 02/23Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 022100Z   Last at 022230Z
 First peak wind >= 35 knots at 022225Z   Last at 022225Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 36 knots from 101 degrees for tower 1612 at 054 feet on 022225Z
 
Start: 05/01Z End: 05/07Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 050230Z   Last at 050535Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 27 knots from 277 degrees for tower 0421 at 054 feet on 050240Z
 
Start: 05/14Z End: 05/20Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 051730Z   Last at 051750Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 23 knots from 022 degrees for tower 1000 at 054 feet on 051740Z
 
Start: 20/19Z End: 20/22Z 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 19 knots from 153 degrees for tower 1612 at 054 feet on 202035Z
 
Start: 24/15Z End: 25/03Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 241545Z   Last at 250235Z
 First peak wind >= 35 knots at 250055Z   Last at 250125Z
 First peak wind >= 50 knots at 250055Z   Last at 250120Z
 Max peak wind reported was 63 knots from 181 degrees for tower 0512 at 030 feet on 250115Z
 
Start: 25/16Z End: 26/02Z Flow Regime: SW-1    radar/wind loop
 First peak wind >= 20 knots at 251650Z   Last at 252135Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 28 knots from 271 degrees for tower 0311 at 054 feet on 251700Z
 
Start: 28/12Z End: 28/23Z Flow Regime: Other   radar/wind loop
 First peak wind >= 20 knots at 281725Z   Last at 282300Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 24 knots from 026 degrees for tower 0003 at 054 feet on 281735Z
 
Start: 29/10Z End: 29/13Z Flow Regime: NE      radar/wind loop
 First peak wind >= 20 knots at 291100Z   Last at 291245Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 26 knots from 101 degrees for tower 0022 at 054 feet on 291245Z