north indian ocean cyclone season north indian ocean cyclone season active season annual cycle tropical cyclone formation season official bounds cyclones tend form april december dates conventionally period year tropical cyclones form northern indian_ocean main seas east indian west india official basin releases unofficial advisories average storms form season peaks november cyclones occurring included season depressions tropical cyclones active seasons ocean season caused large loss life storm people killed india tropical cyclone brought metre storm surge numerous salt mines total damages storm amounted billion billion tropical cyclone killed people left fishermen missing eastern bangladesh short lived depression mid october killed people triggering severe flooding november tropical cyclone killed people caused property damage worth million million eastern india additional people killed fishermen listed missing tropical cyclone affected bangladesh season summary storm season developed area low pressure reached peak intensity winds mph making landfall near bangladesh storm dissipated shortly later month short lived storm developed dissipated day land intense storm season formed early june southwestern coast india slowly traveled west remaining relatively weak turning north intensifying storm reached peak intensity winds mph shortly making landfall near indian state cyclone rapidly dissipated day months inactivity storms developed late september october strengthened tropical storms impacted land early november sixth tropical cyclone season developed storm quickly developed reached peak intensity landfall winds mph storm rapidly dissipated day landfall shortly dissipated remnants tropical storm chip triggered development new cyclone storm tracked edge subtropical ridge reaching peak intensity open waters winds mph cyclone entered area higher wind shear shortly rapidly weakened making landfall dissipated bangladesh final cyclone season developed mid december reached peak intensity winds mph weakening strong wind shear landfall december minimal tropical storm shortly dissipating storms severe cyclonic storm bob cyclone region developed tropical disturbance southern bay southeast sri_lanka little development disturbance initially traveled north northeast turning west system slowed near southeastern coast india began turn northeast utc issued shortly declared disturbance developed depression bob second issued later day new circulation associated system developed northeast utc advisory issued time advisory winds estimated mph upgraded bob deep depression time continuing northeasterly track bob gradually intensified neared bangladesh hours designated cyclone strengthened equivalent tropical storm winds reached mph time located south southeast early bob reached peak intensity severe cyclonic storm winds mph barometric pressure mbar hpa assessed storm peaked winds mph equivalent category hurricane saffir simpson hurricane scale eye developed system landfall hours later near making landfall storm quickly weakened dissipating later day ahead storm officials bangladesh relocated estimated people resulting lower loss life bob adversely affected low lying areas destroying homes damaging produced storm surge coastal towns total hectares acres salt fields hectares acres shrimp farms damaged people killed storm injured fatalities occurred island cox district sixteen fatalities occurred fishing vessels sank near additionally estimated fishermen listed missing sea total people affected bangladesh oil tanker anchored near tossed rough seas vessel sustained significant damage large quantities crude oil water hole hull ship ships involved incident owned following impacts storm provided immediate funds rehabilitation efforts government germany provided affected population donated million bangladesh depression area low pressure developed central early day issued advisory system located south briefly monitored system weak depression designating classified tropical cyclone reached peak intensity speed winds mph soon began dissipate increasing vertical wind shear center circulation quickly devoid convection storm weakened tropical storm intensity later day dissipating open waters extremely severe cyclonic storm june area low pressure developed days later issued system better organized early june issued advisory time began monitoring system depression shortly depression upgraded deep depression strengthened cyclonic storm following day small storm moved slowly west weakened wind shear began increase storm weakened tropical storm intensity later day initial final advisory issued system redeveloped advisories resumed day storm gradually intensified moved northwest dvorak satellite intensity estimates june reached corresponding intensity mph marked increase intensity upgrading severe cyclonic storm time storm began turn north accelerate approaching mid level trough storm neared indian coastline eye developed storm strengthened equivalent major hurricane winds reaching mph assessed storm severe cyclonic storm time winds mph barometric pressure mbar hpa slightly weakening early june strengthened attaining peak intensity winds mph landfall near indian state utc storm weakened following landfall issued final advisory later day continued monitor june time weakened depression dissipating tropical cyclone brought large storm surge devastated coastal communities salt mines estimated people killed storm salt workers radio received little warning cyclone large loss life partially attributed contractors wanted continue making profits inform workers approaching storm region witnessed cyclones weaker result vulnerability local population disaster management administration power supply numerous residences lost storms high winds microwave tower collapsed causing widespread disruption hundreds power transmission towers fell causing estimated loss billion people injured storm animals killed structures damaged destroyed affected area damages amounted billion billion month insurance companies lost approximately billion million remnants storm produced heavy rains pakistan people wake storm provided rehabilitation affected population government denmark contributed funds relief efforts government deployed approximately medical teams affected areas local aid amounting billion million provided assist victims deep depression bob june began monitoring depression central tracking west depression intensified deep depression peaking winds mph minimum pressure mbar hpa utc june deep depression landfall near shortly weakened depression dissipated early following day depression late september area low pressure developed east west oriented surface trough located west mumbai india system gradually intensified moved slowly west early september issued advisory winds peaked mph located area moderate wind shear storm quickly weakened dissipated early october deep depression october began monitoring tropical depression located southwest mumbai depression briefly classified deep depression winds mph minimum pressure mbar hpa moved west northwest shortly reaching peak intensity depression weakened advisory issued day storm open waters deep depression bob october began monitoring tropical depression eastern coast india depression remained relatively weak winds peaking mph storm landfall near early october depression dissipated shortly landfall heavy rains produced depression damaged property hour rainfall totals reached localized areas triggering flash floods areas severely impacted system week earlier schools government offices closed morning october overflow dam inundated power house forcing officials shut plant numerous highways closed flowing water following day water level dam continued rise leading evacuation nearly residents area flooding depression resulted fatalities cyclonic storm began monitoring area low pressure october low traveled northwest little development october issued system better organized wind shear increased advisory issued day minimal convection storm intensified past mph system traveled northeast weakened strong wind shear october storm fell tropical storm status landfall near area landfall early june storm dissipated shortly landfall storm neared land officials evacuated hundreds residents coastal areas low intensity storm damage reported land light rain fell offshore people reported missing contact lost numerous fishing vessels people ships missing ships capsized crew swam shore boat carrying people missing fishermen reported missing later swam shore immediately dispatched search rescue ships naval helicopters find missing people deep depression bob early october began monitoring tropical depression located south southeast depression strengthened deep depression later day winds peaking mph undergoing weakening trend depression dissipated day near coastline outer bands depression produced light rainfall coast severe cyclonic storm bob november area low pressure developed trough moving northwest low gradually developed issued early november day advisory issued brief period rapid development took place storm strengthened category status shortly making landfall near reached peak intensity winds mph time classified cyclone severe cyclonic storm reported wide eye rapid weakening followed shortly landfall storm dissipated early november major crop losses property damage fatalities reported affected areas fatalities east hundreds trees power lines fallen acres km2 homes damaged waves produced storm recorded storm dropped rainfall excess region damages storm estimated million million severe cyclonic storm bob tropical storm chip dissipated vietnam november remnants chip crossed november entered system moved edge subtropical ridge area strong wind shear turning northwest low entered area lower wind shear began better organized november issued issuing advisory early november northeast reached peak intensity november winds mph shortly reaching peak intensity cyclone entered area strong wind shear caused convection associated storm center caused rapidly weaken making landfall west bangladesh dissipated november tropical cyclone produced storm surge inundated coastal areas bangladesh killing people leaving missing winds mph heavy rains impacted large area country large area rice lost flooding numerous homes buried mud total families left homeless homes sustained severe damage estimated people affected severe cyclonic storm december broad area low pressure developed near southern india area moderate wind shear december issued system drifted northwest days later advisory issued large cyclone slowly organized intensified turned north december storm reached peak intensity winds mph turned west area higher wind shear cyclone gradually weakened traveled landfall country december winds mph dissipated later day landfall tropical storm known damage reported remnants storm sank ship killing fishermen season effects table storms landfall deaths additional indirect example indirect death traffic accident storm related
1998 North Indian Ocean cyclone season