Direction Interrégionale de LA REUNION
B.P.4    97491 Ste Clotilde Cedex
Téléphone                02.62.92.11.00
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WTIO20 FMEE 111800 SECURITE STORM WARNING FOR METAREA VIII (S) ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTRE/LA REUNION 11/01/2009 AT 1800 UTC. WARNING NUMBER: 015/05 (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: SUNDAY 11/01/2009 AT 1800 UTC. PHENOMENON: SEVERE TROPICAL STORM 5 (DONGO) 985 HPA POSITION: WITHIN 30 NM RADIUS OF POINT 24.4S / 69.8E (TWENTY FOUR DECIMAL FOUR DEGREES SOUTH AND SIXTY NINE DECIMAL EIGHT DEGREES EAST) AT 1800 UTC MOVEMENT: SOUTH-SOUTH-EAST 13 KT THREAT AREAS: SQUALLY WEATHER EXISTS WITHIN 150 NM RADIUS FROM THE CENTER, EXTENDING UP TO 400 NM IN THE SOUTHEASTERN QUADRANT. STORM WINDS 50 KT AND VERY HIGH SEA WITHIN 15 NM RADIUS FROM THE CENTER. GALE FORCE WINDS 35/45 KT AND VERY ROUGH TO HIGH SEA WITHIN 50 NM RADIUS FROM THE CENTER EXTENDING UP TO 90 NM IN THE SOUTHWESTERN QUADRANT AND UP TO 220 NM IN THE EASTERN SEMI-CIRCLE. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEA WITHIN 110 NM RADIUS FROM THE CENTER EXTENDING UP TO 150 NM IN THE SOUTHWESTERN QUADRANT TO 300 NM IN THE EASTERN SEMI-CIRCLE . STRONG GUSTS UNDER SQUALLS. FORECAST POSITION AND INTENSITY: 12H, VALID 2009/01/12 AT 06 UTC: 26.5S / 70.2E, MAX WIND = 45 KT, MODERATE TROP. STORM. 24H, VALID 2009/01/12 AT 18 UTC: 28.8S / 71.0E, MAX WIND = 40 KT, BECOMING EXTRATROPICAL. OTHER INFORMATIONS: STRONGER WINDS EXTEND FAR FROM THE CENTER IN THE EASTERN SEMI-CIRCLE DUE TO THE GRADIENT EFFECT WITH THE SUBTROPICAL HIGH PRESSURES, AND THE OWN SYSTEM SPEED. DONGO HAS TEMPORARILY STOPPED TO WEAKEN BUT ENVIRONMENTAL CONDITIONS ARE EXPECTED WITHIN THE NEXT HOURS TO BECOME UNFAVOURABLE AGAIN.