Monsoon storm chances the best in two years?

TUCSON - It's been an abysmal start to monsoon 2020 with Tucson seeing virtually no rain.
It's now late July and we should be close to 2.00" of rain for the month.
You needn't think too far back to remember last monsoon when we also had fairly low rainfall amounts.
Things are about to change.High pressure to our east and a trough of low pressure over California will steer deep tropical moisture into Arizona Thursday through Saturday morning.
Storm chances are 70% both Thursday and Friday an 60%