Meteorological history Cyclone Erica

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map plotting track , intensity of storm, according saffir–simpson scale


the origins of cyclone erica can traced tropical low developed within monsoonal trough near tiwi islands on 13 february. 2 days later, low moved inland near western australia–northern territory border. after passing south of alice springs, low turned east , entered coral sea on 3 march 2003. strong wind shear separated convection system @ time. however, shear weakened next day. lower shear, low able intensify , @ 0630 utc on 4 march, joint typhoon warning center (jtwc) issued tropical cyclone formation alert. despite center of storm being elongated, conditions further development present. @ 0600 utc bureau of meteorology in australia upgraded low category 1 cyclone , gave name erica.


as erica moved towards south , subsequently north, cyclone strengthened, becoming equivalent tropical storm according jtwc 1500 utc on 5 march. erica later attained maximum sustained winds of 105 km/h (65 mph 1-minute sustained). system began move against direction of wind shear environment, , lost of organization. on 7 march @ 2230 utc, erica lost cyclone status , degenerated tropical low. remnant circulation moved northeast, , wind shear conditions abated. result, erica began gain signs of organization. @ time remnants moved towards southeast result of upper-level trough developing on australia.



cyclones erica (left) , eseta (right) on march 11.


the area of low pressure gained sufficient shower activity , organization renamed tropical cyclone @ 1800 utc on 10 march while located southwest of solomon islands capital of honiara. erica gradually intensified, attaining equivalent category 1 hurricane on saffir–simpson hurricane scale (sshs) moving southeast @ slow pace, erica began accelerate due influence of weak mid–level ridge east. continuing intensify, cyclone reached peak intensity on 13 march minimum barometric pressure of 915 mbar (27.0 inhg), , peak winds of 260 km/h (150 mph 1-minute sustained). eye of cyclone began shrink in diameter , become symmetrical. later on 13 march, erica began parallel western coast of new caledonia while maintaining strong intensity, before crossing extreme southern end of island @ caledonian island commune of l Île-des-pins.


after passing island, erica accelerated , began rapidly weaken in presence of strong wind shear. result, cyclone began phase of extratropical transition paced southeast. on 15 march, erica completed transition. remnant low continued east-southeast, before meteorological service of new zealand limited office @ wellington, new zealand (tcwc wellington) issued last advisory on erica @ 1800 utc on 16 march.








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