A South Dakota supercell thunderstorm Monday evening provided a spectacular view.

The lone supercell formed just after 5 p.m. MDT near a stretch of Interstate 90 between Sturgis and Rapid City, the state's second-largest city.

What set this supercell apart from others earlier in the spring was its slow movement. For three hours, this supercell sagged slowly south at 5 mph.

It was a photographer's dream.

(MORE: Supercell GIFs | Drone Flies Inside a Supercell)

Photos posted to The Weather Channel Facebook page show the spectacular structure of what appeared to be a high-precipitation  (HP) supercell, one in which the updraft becomes wrapped in rain.

(MORE: Learn About Supercells)

One photo from Natasha Middle Last vividly depicts the supercell's rain and hailshaft against a backlit sky. 

The supercell produced golf ball- to tennis ball-size hail near the towns of Tilford, Piedmont and Black Hawk, northwest of Rapid City, before sagging west.

No tornadoes were reported, but a funnel cloud was sighted near Piedmont. 

Typical of slow-moving HP supercells, flash flooding eventually developed. 

Widespread 2-5 inch rain totals, with locally higher amounts, caused Box Elder and Elk creeks to flood Monday night. 

MORE ON WEATHER.COM: Rapid City, South Dakota Supercell Photos - June 1, 2015