Tropical Cyclone Weekly Summary #12 (October 20 - 27, 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
Mauritius Meteorological Service
(others may be added as they become available)
WEEKLY TROPICAL CYCLONE SUMMARY #12: OCTOBER 20 - 27, 1991

North Atlantic Basin:

Tropical Depression Ten: Tropical Depression Ten formed near 14N 44W on
24 October. Moving westward, the system dissipated the next day near 14N
49W. Maximum winds in the poorly-organized depression were 25 kt.

Hurricane Grace: A low pressure system started forming near 27N 65W on
25 October. Moving north and then northwest, the system developed into a
subtropical storm on 26 October. Further organization occurred, and the
storm acquired tropical characteristics on 27 October and was named Grace.
Hurricane intensity was reached later the same day. At the end of the sum-
mary period, Grace was moving north between Bermuda and the United States
with 65 kt winds. Tropical storm force winds with gusts up to 53 kt were
reported on Bermuda during Grace's development. However, there are no re-
ports of damage or casualties at this time.

Eastern North Pacific Basin (E of 140 Deg. W): No tropical cyclones.

Central North Pacific Basin (180 Deg. W to 140 Deg. W): No tropical cyclones.

Western North Pacific Basin (W of 180 Deg. W):

Typhoon Ruth: Tropical Depression 25W started forming near 9N 145E on 20
October. The depression intensified into Tropical Storm Ruth the next day
as it moved basically west-northwest. Typhoon intensity was reached on 22
October. Moving west to west-northwest for the rest of the summary period,
Ruth continued to strengthen to a peak intensity of 140 kt on 24 October. A
slow weakening then occurred until Ruth hit Luzon Island in the Philippines
on 27 October with winds near 90 kt. So far, there is an unconfirmed report
that 3 people were killed on Luzon. At the end of the summary period, Ruth
was moving west across Luzon with 85 kt winds.

North Indian Ocean Basin: No tropical cyclones.

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:

jack@cloud3.met.fsu.edu.

Past copies of the Tropical Cyclone Weekly Summary can be obtained via e-
mail. Please send an e-mail message if you are interested.