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 101800 SECURITE NEAR GALE WARNING FOR METAREA VII AND METAREA VIII (S) ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTRE/LA REUNION 10/04/2009 AT 1800 UTC. WARNING NUMBER: 027/12 (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 SEAS LEVEL PRESSURE IN HECTOPASCALS (HPA) (INDICATIVE FIGURE). NEAR GALE WARNING BEGINNING OF VALIDITY: FRIDAY 10/04/2009 AT 1800 UTC. PHENOMENON: TROPICAL DEPRESSION 12 (EX-JADE) 997 HPA POSITION: WITHIN 30 NM RADIUS OF POINT 25.7S / 53.6E (TWENTY FIVE DECIMAL SEVEN DEGREES SOUTH AND FIFTY THREE DECIMAL SIX DEGREES EAST) AT 1800 UTC MOVEMENT: SOUTH-EAST 12 KT THREAT AREAS: SQUALLY WEATHER EXISTS WITHIN 120 NM RADIUS OF THE CENTER EXTENDING UP TO 300 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 100 NM FROM THE CENTER IN THE SOUTHWESTERN AND THE NORTHEASTERN QUADRANTS AND UP TO 250 NM IN THE SOUTHEASTERN QUADRANT AND LOCALLY REACHING GALE FORCE WINDS 35/40 KT AND HIGH SEAS UP TO 150 NM FROM THE CENTER IN THE SOUTHEASTERN QUADRANT. STRONG GUSTS UNDER SQUALLS. FORECAST POSITION AND INTENSITY: 12H, VALID 2009/04/11 AT 06 UTC: 28.8S / 55.5E, MAX WIND = 30 KT, BECOMING EXTRATROPICAL. 24H, VALID 2009/04/11 AT 18 UTC: 33.2S / 57.2E, MAX WIND = 40 KT, EXTRATROPICAL. OTHER INFORMATIONS: THE SYSTEM HAS ACCELERATED TOWARDS THE EXTRATROPICAL LATITUDES. EXTENSION OF STRONG WINDS IS LARGE IN THE SOUTHEASTERN SEMI-CIRCLE DUE TO THE GRADIENT EFFECT WIT THE SUBTROPICAL HIGH PRESSURES. WINDS SHOULD TEMPORARELY STRENGHTEN ON AND AFTER THE EXTRATROPICAL TRANSITION BUT THE LOW IS EXPECTED TO DISSIPATE BAYOND TAU 60 MERGING IN A POLAR TROUGH.