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Invest 93W and Invest 91S on the map, 26/09utc




WESTERN NORTH PACIFIC. INVEST 93W.

AN AREA OF CONVECTION (INVEST 93W) HAS PERSISTED NEAR 8.3N  156.4E, APPROXIMATELY 1390 KM EAST-SOUTHEAST OF GUAM. ANIMATED  ENHANCED INFRARED SATELLITE IMAGERY (EIR) AND A RECENT SCATTEROMETRY  PASS DEPICT A TROPICAL WAVE WITH WINDS 15-20 KT. ENVIRONMENTAL  ANALYSIS INDICATES A MARGINALLY FAVORABLE ENVIRONMENT FOR  DEVELOPMENT WITH ROBUST POLEWARD OUTFLOW ALOFT AND WARM (29-30C) SEA  SURFACE TEMPERATURES, OFFSET BY HIGH (30-35KT) VERTICAL WIND SHEAR.  NVGM, CMC, GFS AND ITS ENSEMBLES ARE IN GOOD AGREEMENT THAT 93W WILL  WILL TRACK WEST-NORTHWESTWARD AND CONSOLIDATE IN THE VICINITY OF  GUAM OVER THE NEXT 48 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE  ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED  TO BE NEAR 1008 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A  SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.
AN AREA OF CONVECTION (INVEST 93W) HAS PERSISTED NEAR 8.3N 156.4E, APPROXIMATELY 1390 KM EAST-SOUTHEAST OF GUAM. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY (EIR) AND A RECENT SCATTEROMETRY PASS DEPICT A TROPICAL WAVE WITH WINDS 15-20 KT. ENVIRONMENTAL ANALYSIS INDICATES A MARGINALLY FAVORABLE ENVIRONMENT FOR DEVELOPMENT WITH ROBUST POLEWARD OUTFLOW ALOFT AND WARM (29-30C) SEA SURFACE TEMPERATURES, OFFSET BY HIGH (30-35KT) VERTICAL WIND SHEAR. NVGM, CMC, GFS AND ITS ENSEMBLES ARE IN GOOD AGREEMENT THAT 93W WILL WILL TRACK WEST-NORTHWESTWARD AND CONSOLIDATE IN THE VICINITY OF GUAM OVER THE NEXT 48 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1008 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.

INVEST 93W. GFS HINTS AT CONSOLIDATION AT +72H.


 

SOUTHERN HEMISPHERE/SOUTH INDIAN OCEAN. INVEST 91S. BULLETIN(ABIO) UPDATED AT 25/18UTC.

THE AREA OF CONVECTION (INVEST 91S) PREVIOUSLY LOCATED  NEAR 10.9S 92.1E IS NOW LOCATED NEAR 10.1S 92.3E, APPROXIMATELY 550  KM WEST-NORTHWEST OF COCOS ISLAND, AUSTRALIA. ANIMATED ENHANCED  INFRARED SATELLITE IMAGERY (EIR) AND A 251557Z METOP-C ASCAT PASS  DEPICT FLARING CONVECTION WRAPPING INTO A BROAD LOW-LEVEL  CIRCULATION CENTER (LLCC). ENVIRONMENTAL ANALYSIS INDICATES  MARGINALLY FAVORABLE CONDITIONS WITH LOW TO MODERATE (10-20KT) VWS,  WARM (28-29C) SEA SURFACE TEMPURATURES, OFFSET SLIGHTLY BY A  DECREASED UPPER-LEVEL OUTFLOW. GLOBAL MODELS ARE IN GOOD AGREEMENT  THAT THE SYSTEM WILL TRACK WEST-SOUTHWESTWARD AND WILL MARGINALLY  DEVELOP WITH GFS BEING THE MOST AGGRESSIVE MODEL. MAXIMUM SUSTAINED  SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL  PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. THE POTENTIAL FOR THE  DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24  HOURS REMAINS LOW.
THE AREA OF CONVECTION (INVEST 91S) PREVIOUSLY LOCATED NEAR 10.9S 92.1E IS NOW LOCATED NEAR 10.1S 92.3E, APPROXIMATELY 550 KM WEST-NORTHWEST OF COCOS ISLAND, AUSTRALIA. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY (EIR) AND A 251557Z METOP-C ASCAT PASS DEPICT FLARING CONVECTION WRAPPING INTO A BROAD LOW-LEVEL CIRCULATION CENTER (LLCC). ENVIRONMENTAL ANALYSIS INDICATES MARGINALLY FAVORABLE CONDITIONS WITH LOW TO MODERATE (10-20KT) VWS, WARM (28-29C) SEA SURFACE TEMPURATURES, OFFSET SLIGHTLY BY A DECREASED UPPER-LEVEL OUTFLOW. GLOBAL MODELS ARE IN GOOD AGREEMENT THAT THE SYSTEM WILL TRACK WEST-SOUTHWESTWARD AND WILL MARGINALLY DEVELOP WITH GFS BEING THE MOST AGGRESSIVE MODEL. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW.

INVEST 91S. GFS DOES NOT DEPICT SIGNIFICANT DEVELOPMENT AT +36H.



Rédigé par PATRICK HOAREAU le Friday, November 26th 2021 à 12:30