alu

又是兩個擾動只是這次是南北對勢，今年已經有多組同時形成兩個擾動、颱風、颶風或旋風是因為聖嬰年還是其他原因只得以後專業人是好好研究:funk::dizzy:

甜心

:)目前正值南半球春末夏初的時節它們的風季正要展開，不過這隻必竟是屬於春季擾動侵襲陸地機率應該還不是很高。

t02436

JTWC評級Low

B. TROPICAL DISTURBANCE SUMMARY:
      (1) AN AREA OF CONVECTION HAS PERSISTED NEAR 7.9S 174.3E,
APPROXIMATELY 615 NM NORTH-NORTHWEST OF NADI, FIJI. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY REVEALS GOOD MID-LEVEL TURNING,
HOWEVER, THE LOW-LEVEL STRUCTURE IS BROAD. A 140237Z NOAA-19 89GHZ
IMAGE FURTHER CONFIRMS THIS AND INDICATES SHALLOW BANDING WRAPPING
INTO A WEAKLY DEFINED LOW-LEVEL CIRCULATION CENTER. RECENT ASCAT
IMAGERY SUGGESTS AN ELONGATED CIRCULATION WITH WEAK PERIPHERAL
WINDS. UPPER-LEVEL ANALYSIS INDICATES A FAVORABLE ENVIRONMENT WITH
RADIAL OUTFLOW AND LOW VERTICAL WIND SHEAR. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL
PRESSURE IS ESTIMATED TO BE NEAR 1006 MB. THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS LOW.