Direction Interrégionale de LA REUNION
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WTIO24 FMEE 260000 SECURITE STORM WARNING FOR METAREA VII ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTRE/LA REUNION 26/03/2009 AT 0000 UTC. WARNING NUMBER: 008/11 (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 0000 UTC. PHENOMENON: SEVERE TROPICAL STORM 11 (IZILDA) 974 HPA POSITION: 23.6S / 43.0E (TWENTY THREE DECIMAL SIX DEGREES SOUTH AND FORTY THREE DECIMAL ZERO DEGREES EAST) AT 0000 UTC MOVEMENT: EAST 3 KT THREAT AREAS: SQUALLY WEATHER EXISTS WITHIN 80 NM RADIUS OF THE CENTER, EXTENDING UP TO 100 NM OF THE CENTER IN THE SOUTHERN SMI-CIRCLE. STORM FORCE WINDS AND HIGH SEAS WITHIN 20 NM RADIUS OF THE CENTER. GALE FORCE WINDS 35/45KT AND VERY ROUGH TO HIGH SEA WITHIN 60 NM RADIUS OF THE CENTER EXTENDING UP TO 90 NM IN THE SOUTHWESTERN QUADRANT. NEAR GALE FORCE 30KT AND ROUGH TO VERY ROUGH SEA WITHIN 90 NM RADIUS OF THE CENTER, EXTENDING UP TO 150 NM IN THE SOUTHWESTERN QUADRANT. STRONG GUSTS UNDER SQUALLS. FORECAST POSITION AND INTENSITY: 12H, VALID 2009/03/26 AT 12 UTC: 23.5S / 42.5E, MAX WIND = 55 KT, SEVERE TROP. STORM. 24H, VALID 2009/03/27 AT 00 UTC: 23.2S / 41.9E, MAX WIND = 50 KT, SEVERE TROP. STORM. OTHER INFORMATIONS: IZILDA HAS CLEARLY SLOWN DOWN ESATWARDSAND IS EXPECTED TO RECURVE SOON WEST-NORTHWESTWARDS UNDER THE STEERING INFLUENCE OF THE SUBTROPICAL HIGH PRESSURES REBUILDING IN ITS SOUTHWEST. NORTHWESTERLY VERTICAL WIND SHEAR HAS STOPPED DEVELOPPMENT OF THE SYSTEM, THE EYE HAS DISAPEARED ON THE SATELLITE IMAGERY. STRONGESTS WINDS EXTEND FAR IN THE SOUTHWEST DUE TO THE GRADIENT EFFECT WITH THE SUBTROPICAL HIGH PRESSURES.