Tropical Cyclone Weekly Summary #6 (September 8 - 15, 1991) This report is compiled from warnings issued by: National Hurricane Center Central Pacific Hurricane Center Joint Typhoon Warning Center Japanese Meteorological Agency Royal Observatory of Hong Kong Indian Meteorological Service Reunion Meteorological Service (others may be added as they become available) WEEKLY TROPICAL CYCLONE SUMMARY #6: SEPTEMBER 8 - 15, 1991 North Atlantic Basin: Hurricane Claudette: At the start of the summary period, Claudette was east of Bermuda moving north with 90 kt sustained winds. The storm turned east and weakened to a tropical storm on 10 September. The storm continued to move eastward and weaken, as it became extratropical near 34N 34W on 12 September. Tropical Storm Danny: Tropical Depression Seven became Tropical Storm Danny on 8 September. Moving west-northwest, Danny reached a peak intensity of 45 kt on 9 September. The storm proceeded to weaken quickly thereafter, and it degenerated into an open wave near 58W on 11 September. Tropical Storm Erika: Tropical Depression Eight formed on 8 September near 25N 50W. Moving northwest and then north, the system became Tropical Storm Erika the next day. On 10 September, Erika turned east-northeast and accelerated while reaching a peak intensity of 50 kt. Erika passed through the Azores Islands on 11 September, and became extratropical the next day near 37N 25W. While tropical storm force winds were reported from one of the Azores Islands, no reports of damage or casualties have been recieved at this time. Eastern North Pacific Basin (E of 140 Deg. W): Tropical Depression Ten-E: Tropical Depression 10-E formed near 18N 107W on 12 September. Drifting in a northward direction, the system dissipated near 21N 107W on 14 September. Maximum winds in the poorly-organized depression were 30 kt. Central North Pacific Basin (180 Deg. W to 140 Deg. W): No tropical cyclones. Western North Pacific Basin (W of 180 Deg. W): Typhoon Ivy: At the start of the summary period, Typhoon Ivy was south of Japan moving northeast with 105 kt winds. The typhoon turned east-north- eastward and became extratropical near 41N 162E on 10 September. Typhoon Kinna: Tropical Depression 19W formed near 14N 140E on 10 September. Moving northwest, it intensified into Tropical Storm Kinna the next day. Kinna reached typhoon intensity on 12 September, and later that day it turned north and passed over Okinawa. Minimum pressure recorded on the island in the eye was 960 mb. Kinna reached a peak intensity on 90 kt on 13 September, and it turned north-northeast and passed over southwestern Japan later that day. On 14 September, the storm accelerated northeastward and became extratropical near 38N 139E. Typhoon-force winds occurred on Okinawa, and gusts to typhoon force occurred in the Nagasaki-Fukuoka area of Japan. No reports of damage or casualties have been recieved at this time. Tropical Storm Luke: Tropical Depression 20W formed near 17N 141E on 14 September. The system became Tropical Storm Luke the next day. At the end of the summary period, Luke was moving west-northwest with 40 kt winds. Tropical Depression: A tropical depression formed near 16N 133E on 14 September. At the end of the summary period, it was moving west-northwest with 30 kt winds. Tropical Depression: A tropical depression formed near 14N 165E on 15 September. It was moving west with winds of 30 kt. Special Note: At the time of this writing, three storms are in progress in the Western North Pacific. More details will be available in next week's summary. North Indian Ocean Basin: No tropical cyclones. South Indian Ocean Basin (W of 135 Deg. E): Tropical Cyclone 01S: Tropical Cyclone 01S formed on 11 September near 11S 79E. The system drifted erratically while reaching a peak intensity of 40 kt on 12 September. It dissipated the next day near 12S 81E. South Pacific Ocean Basin (E of 135 Deg. E): No tropical cyclones. Disclaimer: While an effort has been made to make sure this information is accurate as possible, it was drawn from operational warnings that may not always agree with the best track information published after the storm is over. Please address any questions or comments by e-mail to: jack@cloud3.met.fsu.edu.