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
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WTIO22 FMEE 121200 SECURITE STORM WARNING FOR METAREA VII AND METAREA VIII (S) ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTRE/LA REUNION 12/01/2009 AT 1200 UTC. WARNING NUMBER: 018/05 (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: MONDAY 12/01/2009 AT 1200 UTC. PHENOMENON: EXTRATROPICAL DEPRESSION 5 (EX-DONGO) 988 HPA POSITION: 29.0S / 70.3E (TWENTY NINE DECIMAL ZERO DEGREES SOUTH AND SEVENTY DECIMAL THREE DEGREES EAST) AT 1200 UTC MOVEMENT: SOUTH-SOUTH-EAST 8 KT THREAT AREAS: SQUALLY WEATHER EXISTS WITHIN 120 NM RADIUS FROM THE CENTER, EXTENDING UP TO 600 NM IN THE SOUTHEASTERN QUADRANT. STORM FORCE WINDS 50 KT AND VERY HIGH TO HIGH SEAS WINTHIN 120 NM RADIUS FROM THE CENTER IN THE SOUTHERN SEMI-CIRCLE. GALE FORCE WINDS 35/45 KT AND VERY ROUGH TO HIGH SEA WITHIN 100 NM RADIUS FROM THE CENTER EXTENDING UP TO 180 NM IN THE SOUTHEASTERN SEMI-CIRCLE. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEA WITHIN 120 NM RADIUS FROM THE CENTER EXTENDING UP TO 300 NM IN THE SOUTHEASTERN SEMI-CIRCLE . STRONG GUSTS UNDER SQUALLS. FORECAST POSITION AND INTENSITY: 12H, VALID 2009/01/13 AT 00 UTC: 31.2S / 71.4E, MAX WIND = 50 KT, EXTRATROPICAL. 24H, VALID 2009/01/13 AT 12 UTC: 32.9S / 74.2E, MAX WIND = 50 KT, EXTRATROPICAL. OTHER INFORMATIONS: STRONGER WINDS EXTEND FAR FROM THE CENTER IN THE SOUTHERN SEMI-CIRCLE DUE TO THE GRADIENT EFFECT WITH THE SUBTROPICAL HIGH PRESSURES. THE SYSTEM IS TEMPORARILY SLOWING DOWN DUE TO THE HIGH SUB-TROPICAL PRESSURE, IT SHOULD ACCELERATE SOUTHEASTWARDS UP TO 24 HOURS. THEN DONGO IS EXPECTED TO TRACK RAPIDLY SOUTH SOUTHEASTWARDS TOWARDS THE MID-LATITUDES.