Direction Interrégionale de LA REUNION
B.P.4    97491 Ste Clotilde Cedex
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WTIO24 FMEE 260600 SECURITE STORM WARNING FOR METAREA VII ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTRE/LA REUNION 26/03/2009 AT 0600 UTC. WARNING NUMBER: 009/11 (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). STORM WARNING BEGINNING OF VALIDITY: THURSDAY 26/03/2009 AT 0600 UTC. PHENOMENON: SEVERE TROPICAL STORM 11 (IZILDA) 985 HPA POSITION: 23.8S / 42.6E (TWENTY THREE DECIMAL EIGHT DEGREES SOUTH AND FORTY TWO DECIMAL SIX DEGREES EAST) AT 0600 UTC MOVEMENT: QUASI-STATIONARY THREAT AREAS: SQUALLY WEATHER EXISTS WITHIN 100 NM RADIUS OF THE CENTER, EXTENDING UP TO 200 NM OF THE CENTER IN THE SOUTHERN SMI-CIRCLE. STORM FORCE WINDS 50 KT AND HIGH TO VERY HIGH SEAS CLOSE TO THE CENTER. GALE FORCE WINDS 35/45KT AND VERY ROUGH TO HIGH SEAS WITHIN 15 NM RADIUS OF THE CENTER EXTENDING UP TO 80 NM IN THE SOUTHERN SEMI-CIRCLE. NEAR GALE FORCE WINDS 30KT AND ROUGH TO VERY ROUGH SEAS WITHIN 25 NM RADIUS OF THE CENTER, EXTENDING UP TO 100 NM IN THE SOUTHERN SEMI-CIRCLE. STRONG GUSTS UNDER SQUALLS. FORECAST POSITION AND INTENSITY: 12H, VALID 2009/03/26 AT 18 UTC: 23.8S / 42.2E, MAX WIND = 40 KT, MODERATE TROP. STORM. 24H, VALID 2009/03/27 AT 06 UTC: 23.4S / 41.3E, MAX WIND = 40 KT, MODERATE TROP. STORM. OTHER INFORMATIONS: IZILDA HAS GREATLY WEAKENED WITHIN AN UNFAVORABLE ENVIRONMENT. WINDS EXTENSIONS ARE CALIBRATED THANKS TO RECENT SATELLITE DATA. STRONGER WINDS EXTEND FAR IN THE SOUTH DUE TO THE GRADIENT EFFECT WITH THE SUBTROPICAL HIGH PRESSURES. THE SYSTEME SHOULD TRACK WESTWARDS UNDER THE STEERING INFLUENCE OF THE SUBTROPICAL HIGH PRESSURES.