I live about an hour south of the unit. We had a massive heat wave in July with very little rain. The monsoons are just now arriving. Not looking promising for strong monsoon rains the rest of summer but there will still be some. However last summer and winter had record moisture so I assume there should be some decent water on the ground still come September. Not sure how familiar you are to Az elk hunting but water is VERY important. I would focus on e-scouting water sources that look promising, and then arrive a few days early to check them for water level and elk sign. Find glassing points so you can see if anything is coming in to water and from what direction. Once you find water sources that are being hit good, chase bugles in the morning and sit water all afternoon. (If your dad wants the best chances of getting that bull of a lifetime he needs to be in the field for as much time as possible especially since y’all are DYI-ing it) Some water tanks will have stick blinds already, but bring along a pop up blind. The elk won’t move far from water that time of year and herd bulls will even come to drink during the middle of the day. If it’s a warm September with little to no rain, water will be even more important. A lot of the AZ giants you see on the internet are killed over water