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

WTIO24 FMEE 121200 SECURITE GALE WARNING FOR METAREA VII ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTRE/LA REUNION 12/04/2007 AT 1200 UTC. WARNING NUMBER: 004/15 (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). GALE WARNING BEGINNING OF VALIDITY: THURSDAY 12/04/2007 AT 1200 UTC. PHENOMENON: EXTRATROPICAL DEPRESSION 15 1000 HPA POSITION: 36.0S / 46.0E (THIRTY SIX DECIMAL ZERO DEGREES SOUTH AND FORTY SIX DECIMAL ZERO DEGREES EAST) AT 1200 UTC MOVEMENT: SOUTH-EAST 23 KT THREAT AREAS: SQUALLY WEATHER EXISTS LOCALLY WITHIN 150 NM RADIUS OF THE CENTER, EXTENDING UP TO 500 NM IN THE SOUTHEASTERN SEMI-CIRCLE. GALE FORCE WINDS 35/40 KT AND VERY ROUGH TO HIGH SEAS WITHIN 50 NM RADIUS FROM THE CENTER. NEAR GALE FORCE WINDS AND ROUGH TO VERY ROUGH SEAS WITHIN 80 NM FROM THE CENTER, EXTENDING LOCALLY UP TO 300 NM IN THE SOUTHEASTERN SECTOR. SRONG GUSTS UNDER SQUALLS. FORECAST POSITION AND INTENSITY: 12H, VALID 2007/04/13 AT 00 UTC: 41.0S / 53.0E, MAX WIND = 40 KT, EXTRATROPICAL. 24H, VALID 2007/04/13 AT 12 UTC: 46.5S / 61.0E, MAX WIND = 40 KT, EXTRATROPICAL. OTHER INFORMATIONS: THIS SYSTEM TRACKS QUICKLY SOUTHEASTWARDS THANKS TO A TRANSIENT TROUGH IN THE SOUTH, WITHIN A STRONGLY NORTHWESTERLY WINDSHEAR ENVIRONMENT. THE LOW LEVEL CLOCKWISE CIRCULATION IS ASYMMETRICAL AND STRONG WINDS EXTEND FAR IN THE SOUTH-EST DUE TO THE GRADIENT WITH THE SUBTROPICAL HIGH PRESSURES. EXTENSION WINDS IS MEASURED THANKS TO RECENT SATELITE DATA. THIS IS THE LAST WARNING ISSUED ON THIS SYTEM WHICH KEEPS ON BEING MONITORED THANKS TO THE WARNINGS FQIO20.