Meteorological history Cyclone Komen

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


the monsoon spawned low pressure area on july 25 on extreme northern bay of bengal , along southern coast of bangladesh. low wind shear , abundant convection south of developing circulation, system organized. @ 03:00 utc on july 26, india meteorological department (imd) classified system depression, while circulation stationary near southern coast of bangladesh. land interaction , unfavorable phase of madden julian oscillation prevented further strengthening, despite warm water temperatures of 31 °c (88 °f). on july 27, american-based joint typhoon warning center (jtwc) began monitoring depression after convection organized further, amplified outflow. still embedded within monsoon, depression remained stationary 2 days on southern bangladesh. jtwc issued tropical cyclone formation alert late on july 28, due increasingly defined circulation.


on july 28, system began moving more south , southeast, although movement slow, possibly affected monsoon depression on western india. imd described track unique , taking semi-circular path on northeast bay of bengal. @ 00:00 utc on next day, imd upgraded depression deep depression, , 3 hours later jtwc classified system tropical cyclone 02b, located 135 km (85 mi) southwest of chittagong, bangladesh. tropical upper tropospheric trough northeast imparted dry air, otherwise, conditions favorable. ridge on myanmar turned system north on july 29. during day, circulation elongated , exposed convection, while thunderstorms in southern periphery organized spiral rainbands. @ 18:00 utc on july 29, imd upgraded system cyclonic storm komen, 1 of 4 storms of such intensity in july since 1965; typically, low pressure areas form in month in extreme northern periphery of bay of bengal, allowing little time develop on waters, , impeded wind shear.


late on july 29, jtwc estimated komen attained peak 1 minute sustained winds of 75 km/h (45 mph), based on estimates satellite imagery. storm approached bangladesh, circulation remained broad of convection in southern periphery, although radar imagery coast indicated there formative eye feature in storm s center. @ 06:00 utc on july 30, imd estimated peak 3 minute winds of 75 km/h (45 mph). between 14:00–15:00 utc day, komen made landfall on bangladesh west of chittagong, , jtwc discontinued advisories once storm ashore. komen weakened turned northwest through bangladesh, steered ridge on tibet north. on july 31, system crossed indian state of west bengal weakened depression. track shifted west-southwest until komen weakened remnant low on august 2 on jharkhand.








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