Weekly Tropical Cyclone Summary #1 (August 4-11, 1991)
JACK
GREETINGS! THIS IS THE FIRST OF (HOPEFULLY, TIME AND CIRCUMSTANCES
PERMITTING) MANY WEEKLY UPDATES ON WORLD-WIDE TROPICAL CYCLONE ACTIVITY.
THE PURPOSE IS TO GIVE A BRIEF OVERVIEW OF EACH STORM AS IT OCCURS. (SEE
THE DISCLAIMER AT THE END OF THE SUMMARY.) ACTIVITY WILL BE BROKEN DOWN BY
VARIOUS OCEAN BASINS.
This report is compiled from warnings issued by:
National Hurricane Center
Central Pacific Hurricane Center
Joint Typhoon Warning Center
Japanese Meteorological Agency
Indian Meteorological Service
Reunion Meteorological Service
(others may be added as they become available)
WEEKLY TROPICAL CYCLONE SUMMARY #1: AUGUST 4 - 11, 1991
North Atlantic Basin: No Tropical Cyclones.
Eastern North Pacific Basin (E of 140 Deg. W):
Hurricane Fefa: After peaking at 105 kt before the week began, Fefa
weakened to 70 kt as it crossed into the Central Pacific Basin on 5 August.
Hurricane Guillermo: Tropical Depression 8E formed on 4 August near 13N
100W. It intensified into Tropical Storm Guillermo the same day as it moved
west-northwest. Hurricane intensity was reached on 5 August as indicated by
reports from the NOAA research aircraft involved in the TEXMEX experiment.
Peak intensity of 70 kt was reached on 6 August as the storm turned west.
Guillermo weakend to a tropical storm on 7 August, and to a tropical
depression on 9 August. Dissipation occurred near 15N 133W on 10 August.
Tropical Storm Hilda: Tropical Depression 9E formed near 13N 102W on 8
August. It became Tropical Storm Hilda on 9 August while moving west-north-
west. Winds peaked at 55 kt on 11 August.
Central North Pacific Basin (180 Deg. W to 140 Deg. W):
Hurricane Fefa: Fefa crossed into the Central Pacific on 5 August on a
westward track with winds weakening to 70 kt. Continued weakening followed,
with Fefa becoming a tropical storm on 6 August and a depression on 7
August. Fefa dissipated near the Hawaiian Is. on 8 August, but not before
bringing 5 in. of rain to Hilo and reports of tropical storm force wind
gusts from several areas.
Western North Pacific Basin (W of 180 Deg. W):
Tropical Storm Doug: Tropical Depression 10W formed near 27N 160E on 8
August. Moving northwest, it intensified into Tropical Storm Doug on 9
August with winds peaking at 35 kt. The system weakened to a depression as
it recurved northeastward on 10 August. The system became extratropical on
11 August near 39N 160E.
Tropical Storm Ellie: A tropical depression formed near 23N 160E on 10
August. Moving west-northwest, it became Tropical Storm Ellie on 11 August.
As of this writing, maximum winds are 50 kt.
Tropical Depression 12W: A tropical depression formed near 16N 124E on
11 August. As of this writing, maximum winds are 30 kt.
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: