Tucked away in the extreme SE corner of Az is scenic highway 80. It runs for 75 miles NE from Douglas, to finally intersect I-10 just across the border in New Mexico.
The southern section of the road meanders among the jumbled hills and hummocks of the Southern Chiricahua Range. Further north, the Chiricahuas rise to their full powers, filling the western horizon. A short drive to Portal puts you in a large, extremely picturesque amphitheater, ringed by the rugged mountains. I've seen some fantastic sunset light streaming around the peaks. Just add lightnings and you'd really have something!
Further north the road punches through Granite Gap, again offering 'fun' horizons and scenic terrain for your storm photography.
The whole area is lightly traveled, sparsely populated, dark, and staggeringly pretty. The low grasses that are the dominant vegetation make roadside shooting a cinch. Just pull over, aim, and shoot. No need to hunt for a high spot or a break in the trees or bushes. Cell coverage is spotty and help will be hard to find. Make sure your car is in good order!
Stagecoach road / Hwy 86, between Wilcox and Chiricahua National Park is similar in nature to Hwy 80. The Dos Cabezas and Apache Pass areas are scenic high points, but the whole road has great potential. Be sure to take the Apache Pass road to Ft. Bowie. More rugged mountains and endless horizons!