...GUILLERMO WEAKENS FURTHER... ...EXPECTED TO BECOME A DEPRESSION SOON...
As of 5:00 AM HST Mon Jul 19
the center of Guillermo was located near 19.1, -117.8
with movement W at 15 mph.
The minimum central pressure was 1005 mb
with maximum sustained winds of about 40 mph.

Source: Summary for Tropical Storm Guillermo (EP2/EP072021)