what does the meteorological history tell us about this cyclone?
It formed on August 20. On August 23 it became a tropical depression. On August 25 it became a tropical storm and on August 27 it became a typhoon.
Typhoon Omar
Typhoon Omar originated from a tropical disturbance that was first noted on August 20 over the open Pacific Ocean, which exhibited persistent convection, or thunderstorms. During this early phase, two tropical cyclones dissipated and another became extratropical across the western Pacific basin; this caused the monsoon trough, which spawned most of the storms in the basin, to realign in a more climatologically appropriate manner. According to the Japan Meteorological Agency (JMA), Omar developed into a tropical depression at 1800 UTC on August 23. The Joint Typhoon Warning Center (JTWC) assessed a slower pace of strengthening, issuing a tropical cyclone formation alert at 2100 UTC before initiating advisories on Tropical Depression 15W on August 24.

As the depression traveled generally westward, the JTWC upgraded it to Tropical Storm Omar on August 25, and the JMA followed suit on the next day. Omar began to slow as it tracked westward. Outflow from nearby Tropical Storm Polly to the 
when did typhoon omar take place? In 1992. where did it start? From the monsoon trough in the western Pacific Ocean. what lead it to become a typhoon? Development of a high pressure ridge as Omar moved away from another typhoon. what is a typhoon? It is a mature tropical cyclone that develops between 180° and 100°E in the Northern Hemisphere. do basins need to be monitored during a cyclone? Yes, as most of them form in one of the seven tropical cyclone basins.
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Typhoon Omar [SEP] Meteorological history
Typhoon Omar originated from a tropical disturbance that was first noted on August 20 over the open Pacific Ocean, which exhibited persistent convection, or thunderstorms. During this early phase, two tropical cyclones dissipated and another became extratropical across the western Pacific basin; this caused the monsoon trough, which spawned most of the storms in the basin, to realign in a more climatologically appropriate manner. According to the Japan Meteorological Agency (JMA), Omar developed into a tropical depression at 1800 UTC on August 23. The Joint Typhoon Warning Center (JTWC) assessed a slower pace of strengthening, issuing a tropical cyclone formation alert at 2100 UTC before initiating advisories on Tropical Depression 15W on August 24.