RA IV Hurricane Committe, Twenty-sixth session - WMO

APPENDIX III, p. 10
turned sharply to the east and then northeast. The cyclone reached the coast of Mexico as a
depression on 9 October, just north of Mazatlan, and soon dissipated over high terrain. Nora
caused locally heavy rains in the Mexican state of Sinaloa, but there are no reports of damages
or casualties.
Olaf began as a tropical depression on 3 October about 360 miles south-southeast of
Acapulco, Mexico. It strengthened into a tropical storm later that day while moving slowly
northwestward. This motion continued for two days while Olaf gradually strengthened to a
75-mph hurricane on 5 October. Olaf was a hurricane for only a few hours. The storm turned
northward on 6 October and made landfall early on the next day near Manzanillo with winds
estimated at 60 mph. Olaf then dissipated over the high terrain of the Mexican state of Nayarit
on 8 October. The cyclone caused heavy rains in the Mexican states of Jalisco and Guanajuato,
with more than 12,000 homes damaged in Jalisco.
Patricia developed about 460 miles south of Acapulco on 20 October and quickly
intensified into a tropical storm later that day. It moved west-northwestward to northwestward
and strengthened into a hurricane on 21 October. Maximum winds reached 80 mph early on
22 October. Westerly vertical wind shear caused Patricia to weaken to a tropical storm later that
day and, aside from slight re-strengthening on 24 October, slowly weaken over the next several
days. Patricia weakened to a depression on 25 October and a remnant low on 26 October.
The system dissipated later that day about 605 miles south-southwest of Cabo San Lucas.