There were 16 convective periods for July 1999:
Start: 30/18Z End: 01/02Z Flow Regime: SW-2    Continued from June   radar/wind loop
Start: 01/22Z End: 02/02Z Flow Regime: SE-1    radar/wind loop
Start: 02/10Z End: 03/01Z Flow Regime: SE-1    radar/wind loop
Start: 03/09Z End: 03/18Z Flow Regime: SE-1    radar/wind loop
Start: 09/22Z End: 10/00Z Flow Regime: SW-2    radar/wind loop
Start: 10/16Z End: 10/19Z Flow Regime: SE-1    radar/wind loop
Start: 12/18Z End: 12/21Z Flow Regime: SW-2    radar/wind loop
Start: 14/18Z End: 14/19Z Flow Regime: SE-1    radar/wind loop
Start: 19/15Z End: 19/20Z Flow Regime: SW-2    radar/wind loop
Start: 20/15Z End: 20/19Z Flow Regime: Missing radar/wind loop
Start: 21/21Z End: 22/07Z Flow Regime: NW      radar/wind loop
Start: 24/17Z End: 24/22Z Flow Regime: SW-2    radar/wind loop
Start: 25/21Z End: 25/23Z Flow Regime: SW-2    radar/wind loop
Start: 26/18Z End: 26/22Z Flow Regime: NW      radar/wind loop
Start: 27/15Z End: 28/00Z Flow Regime: NW      radar/wind loop
Start: 30/16Z End: 30/21Z Flow Regime: SW-2    radar/wind loop
 
Start: 30/18Z End: 01/02Z Flow Regime: SW-2    Continued from June   radar/wind loop
 First peak wind >= 20 knots at 010000Z   Last at 010140Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 24 knots from 177 degrees for tower 0020 at 145 feet on 010000Z
 
Start: 01/22Z End: 02/02Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 012305Z   Last at 020055Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 31 knots from 188 degrees for tower 0021 at 204 feet on 020020Z
 
Start: 02/10Z End: 03/01Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 021200Z   Last at 022345Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 28 knots from 113 degrees for tower 0022 at 054 feet on 022110Z
 
Start: 03/09Z End: 03/18Z Flow Regime: SE-1    radar/wind loop
 First peak wind >= 20 knots at 031150Z   Last at 031730Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 30 knots from 104 degrees for tower 0062 at 204 feet on 031155Z
 
Start: 09/22Z End: 10/00Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 092200Z   Last at 092305Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 29 knots from 259 degrees for tower 1612 at 054 feet on 092200Z
 
Start: 10/16Z End: 10/19Z 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 18 knots from 059 degrees for tower 1007 at 054 feet on 101810Z
 
Start: 12/18Z End: 12/21Z 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 032 degrees for tower 1612 at 054 feet on 121920Z
 
Start: 14/18Z End: 14/19Z 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 004 degrees for tower 0418 at 054 feet on 141850Z
 
Start: 19/15Z End: 19/20Z 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 119 degrees for tower 1612 at 054 feet on 191750Z
 
Start: 20/15Z End: 20/19Z Flow Regime: Missing 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 18 knots from 230 degrees for tower 3132 at 295 feet on 201605Z
 
Start: 21/21Z End: 22/07Z Flow Regime: NW      radar/wind loop
 First peak wind >= 20 knots at 220455Z   Last at 220610Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 30 knots from 345 degrees for tower 0021 at 204 feet on 220455Z
 
Start: 24/17Z End: 24/22Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 241915Z   Last at 242200Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 24 knots from 208 degrees for tower 0415 at 054 feet on 241915Z
 
Start: 25/21Z End: 25/23Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 252100Z   Last at 252215Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 23 knots from 183 degrees for tower 3131 at 204 feet on 252215Z
 
Start: 26/18Z End: 26/22Z Flow Regime: NW      radar/wind loop
 First peak wind >= 20 knots at 261900Z   Last at 262045Z
 First peak wind >= 35 knots at 261930Z   Last at 262040Z
 First peak wind >= 50 knots at 262025Z   Last at 262030Z
 Max peak wind reported was 57 knots from 273 degrees for tower 0061 at 204 feet on 262025Z
 
Start: 27/15Z End: 28/00Z Flow Regime: NW      radar/wind loop
 First peak wind >= 20 knots at 271700Z   Last at 271915Z
 No peak winds >= 35 knots were reported
 No peak winds >= 50 knots were reported
 Max peak wind reported was 24 knots from 076 degrees for tower 0714 at 054 feet on 271755Z
 
Start: 30/16Z End: 30/21Z Flow Regime: SW-2    radar/wind loop
 First peak wind >= 20 knots at 301825Z   Last at 302030Z
 First peak wind >= 35 knots at 301915Z   Last at 301915Z
 No peak winds >= 50 knots were reported
 Max peak wind reported was 36 knots from 166 degrees for tower 1000 at 054 feet on 301915Z