Tropical Cyclone Weekly Summary #10 (October 6 - 13, 1991)
JACK
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 #10: OCTOBER 6 - 13, 1991
North Atlantic Basin: No tropical cyclones.
Eastern North Pacific Basin (E of 140 Deg. W):
Hurricane Kevin: At the start of the summary period, Kevin was moving
west-northwest with 80 kt winds. A re-intensification followed, and winds
increased to 100 kt on 7 October. From that point, the storm slowly weaken-
ed as it continued west-northwest to northwest. On 9 October, Kevin crossed
into the Central Pacific Basin with 70 kt winds. As far as it can be deter-
mined, Kevin is the longest lived East Pacific hurricane in terms of time
spent east of 140W.
Hurricane Linda: At the start of the summary period, Linda was moving
west with winds weakening to 65 kt. Both the motion and the weakening con-
tinued, with Linda weakening to a tropical storm on 7 October and to a
tropical depression on 10 October. The weak depression turned west-south-
west on 11 October and dissipated near 19N 130W on 13 October.
Hurricane Marty: Tropical Depression 15E formed near 13N 98W on 8 Oc-
tober. It became Tropical Storm Marty later the same day. Moving west-
northwestward, Marty reached hurricane intensity on 10 October. Maximum
winds were 70 kt on 10-11 October. On 12 October, Marty stalled near 18N
109W and weakened to tropical storm intensity. At the end of the summary
period, Marty was drifting slowly northward with 45 kt winds.
Central North Pacific Basin (180 Deg. W to 140 Deg. W):
Hurricane Kevin: Long-lived Hurricane Kevin entered the Central Pacific
Basin on 9 October with 70 kt winds. Kevin weakened to tropical storm in-
tensity later that day as it moved along a west-northwest to northwest
track. Kevin weakened to a depression on 11 October, and it finally dis-
sipated near 25N 147W on 12 October.
Western North Pacific Basin (W of 180 Deg. W):
Typhoon Orchid: Typhoon Orchid was moving west with 100 kt winds at the
start of the summary period. Orchid proceeded to turn northwest on 7 Oc-
tober and north on 8 October while peaking in intensity at 115 kt. Orchid
recurved to the northeast on 9 October while slowly weakening. Movement af-
ter recurvature was slow, as the storm did not accelerate northeastward un-
til 13 October. Slow weakening followed the recurvature, and Orchid dropped
below typhoon intensity on 12 October. At the end of the summary period,
Orchid was moving rapidly northeastward east of Japan with 55 kt winds.
Typhoon Pat: Tropical Storm Pat had 50 kt winds and a west-northwest
course at the start of the summary period. Rapid strengthening then took
place as Pat reached typhoon intensity the next day and peaked at 120 kt on
8 October. During this time, Pat turned northwest and then north. Pat moved
north to north-northwest while slowly weakening during 9-11 October. Pat
turned north-northeast on 12 October, and then accelerated northeastward on
13 October while dropping below typhoon intensity. At the end of the sum-
mary period, Pat was moving rapidly northeastward with 50 kt winds.
North Indian Ocean Basin:
Tropical Depression: A tropical depression formed in the Bay of Bengal
near 20N 89E on 13 October. Moving north-northeast, it weakened to a low
pressure area near 22N 90E later the same day. Maximum winds in the poorly-
organized depression are not known for certain, but they are believed to
have been 25 kt.
South Indian Ocean Basin (W of 135 Deg. E): No tropical cyclones.
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:
Past copies of the Tropical Cyclone Weekly Summary can be obtained via e-
mail. Please send an e-mail message if you are interested.