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 091200 SECURITE NEAR GALE WARNING FOR METAREA VII AND METAREA VIII (S) ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTRE/LA REUNION 09/04/2009 AT 1200 UTC. WARNING NUMBER: 022/12 (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). NEAR GALE WARNING BEGINNING OF VALIDITY: THURSDAY 09/04/2009 AT 1200 UTC. PHENOMENON: TROPICAL DEPRESSION 12 (EX-JADE) 999 HPA POSITION: WITHIN 20 NM RADIUS OF POINT 22.6S / 50.2E (TWENTY TWO DECIMAL SIX DEGREES SOUTH AND FIFTY DECIMAL TWO DEGREES EAST) AT 1200 UTC MOVEMENT: SOUTH-SOUTH-EAST 3 KT THREAT AREAS: SQUALLY WEATHER EXISTS WITHIN 90 NM RADIUS OF THE CENTER EXTENDING UP TO 400 NM IN THE NORTHEASTERN QUADRANT AND UP TO 500 NM IN THE SOUTHEASTERN QUADRANT. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEAS WITHIN 30 NM RADIUS OF THE CENTER EXTENDING UP TO 80 NM IN THE SOUTHWESTERN QUADRANT AND UP TO 135 NM IN THE SOUTHEASTERN QUADRANT AND LOCALLY REACHING GALE FORCE WINDS 35/40 KT AND VERY ROUGH TO HIGH SEAS WITHIN 60 NM RADIUS OF THE CENTER IN THE SOUTHERN SEMI-CIRCLE. STRONG GUSTS UNDER SQUALLS. FORECAST POSITION AND INTENSITY: 12H, VALID 2009/04/10 AT 00 UTC: 24.1S / 50.9E, MAX WIND = 25 KT, TROP. DISTURBANCE. 24H, VALID 2009/04/10 AT 12 UTC: 25.5S / 52.7E, MAX WIND = 30 KT, BECOMING EXTRATROPICAL. OTHER INFORMATIONS: THE SYSTEM IS EXPECTED TO KEEPS ON TRACKING GLOBALLY SOUTHEASTWARDS SPEEDING UP TOWARDS A POLAR TROUGH WHICH WILL PROGRESSIVELY TAKING PLACE OF THE SUBTROPICAL HIGH PRESSURE BELT. WITHIN THE NEXT 24 HOURS, WINDS ARE EXPECTED TO WEAKEN NEAR TH CENTER BUT REMAIN STRONG (LOCALLY REACHING GALE FORCE WINDS) IN THE SOUTHERN SEMI-CIRCLE DUE TO THE GRADIENT EFFECT WITH THE SUBTROPICAL HIGH PRESSURES. IT SHOULD BEYOND TAU 36 MAKING ITS EXTRATROPICAL TRANSITION, WINDS COULD STRENGHTEN AGAIN AS THE LOW MERGE WITH THE POLAR TROUGH.