Direction Interrégionale de LA REUNION
B.P.4    97491 Ste Clotilde Cedex
Téléphone                02.62.92.11.00
Fax exploitation      02.62.92.11.48
Fax direction           02.62.92.11.47

WTIO22 FMEE 101200 SECURITE GALE WARNING FOR METAREA VII AND METAREA VIII (S) ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTRE/LA REUNION 10/04/2009 AT 1200 UTC. WARNING NUMBER: 026/12 (SOUTH-WEST INDIAN OCEAN) 10 MINUTES AVERAGE WIND SPEED IN KNOTS (KT) (WIND GUSTS AT SEA MAY BE ABOUT 40% STRONGER THAN THE AVERAGED WIND). MINIMUM SEA LEVEL PRESSURE IN HECTOPASCALS (HPA) (INDICATIVE FIGURE). GALE WARNING BEGINNING OF VALIDITY: FRIDAY 10/04/2009 AT 1200 UTC. PHENOMENON: MODERATE TROPICAL STORM 12 (JADE) 995 HPA POSITION: 25.0S / 52.5E (TWENTY FIVE DECIMAL ZERO DEGREES SOUTH AND FIFTY TWO DECIMAL FIVE DEGREES EAST) AT 1200 UTC MOVEMENT: SOUTH-SOUTH-EAST 11 KT THREAT AREAS: SQUALLY WEATHER EXISTS WITHIN 150 NM RADIUS OF THE CENTER EXTENDING UP TO 450 NM IN THE SOUTHEASTERN SEMI-CIRCLE . GALE FORCE WINDS 35KT AND HIGH SEAS WITHIN 20 NM RADIUS OF THE CENTRE, EXTENDING UP TO 50 NM IN THE SOUTHEASTERN SEMI-CIRCLE. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEAS WITHIN 50 NM RADIUS OF THE CENTER EXTENDING UP TO 80 NM IN THE NORTHEASTERN AND SOUTHWESTERN QUADRANTS, 150 NM IN THE SOUTHEASTERN QUADRANT. STRONG GUSTS UNDER SQUALLS. FORECAST POSITION AND INTENSITY: 12H, VALID 2009/04/11 AT 00 UTC: 27.1S / 54.2E, MAX WIND = 30 KT, BECOMING EXTRATROPICAL. 24H, VALID 2009/04/11 AT 12 UTC: 32.4S / 57.1E, MAX WIND = 40 KT, EXTRATROPICAL. OTHER INFORMATIONS: AFTER A RENEWAL OF ACTIVITY LAST NIGHT, THE SYSTEM STARTS TO UNDERGO WESTERLY WINDSHEAR, AND THE LLCC CENTRE IS EXPOSED WEST OF THE CONVECTION ON THE LAST IMAGERY. THE SYSTEM HAS ACCELERATED TOWARDS THE EXTRATROPICAL LATITUDES AND HAS TRACKED INTO THE 150° OVER THE LAST HOURS. EXTENSION OF STRONG WINDS IS LARGE IN THE SOUTHEASTERN SEMI-CIRCLE DUE TO THE GRADIENT EFFECT WIT THE SUBTROPICAL HIGH PRESSURES.