The last of the day's sunlight pokes through a monsoon storm building up over the northwest area of the valley, generating lightning strikes but little precipitation, Saturday, July 8, 2017, Tucson, Ariz.
Firefighters from the Tucson Fire Department reduce a family of four from a Toyota sedan that became trapped in flash flood waters on South Houghton Road, just north of Valencia on Friday, July 5, 2013.
Once the pedestrian paths were reopened, the Lyles family walks underneath the West Speedway Boulevard bridge to observe the monsoon storm runoff in the Santa Cruz River on Monday, Sept. 8, 2014.
Stone Ave. underpass at 6th St., gets another car, this time a Cadillac after a heavy storm soaked Tucson's central and southside Sunday around 6pm. The car's driver and his son are at right (they wouldn't give names). There were no injuries and no citation was issued. Photo taken August, 16, 1998.
With the sign saying "Palm Harbor," Art Chase makes his way to his car as the parking lot of Prestige Homes near Drexel and Palo Verde. Photo taken July, 26, 1999.
The Santa Cruz wash near West Congress Street is filled with flowing water after a monsoon storm dumped large amounts of rain over Tucson. Sunday July 15, 2012.
A gust of wind turns a man's umbrella inside out as he fords the flooded gutters of Tyndall Ave. just south of University during a heavy monsoon rain, Thursday, August 14, 2014.
A bolt of lightning slams to earth near a stretch of power lines over El Camino Del Cerro as a series of storm cells dump rain over the Tucson Mountain area of town, Friday, June 10, 2016.
Monsoon runoff collects in the wetlands at the Kino Environmental Restoration Project, near the intersection of South Country Club and East Ajo Way on Tuesday, Aug. 26, 2014.
The remains of an afternoon monsoon storm cell produces a lightning strike in the mountains between Baboquivari and Kitt Peak at sun set, Saturday August 29, 2015.
An afternoon monsoon storm cell generates an intense lightning show with several ground strikes in the area around Gates Pass Rd. and Kinney Rd., Saturday August 29, 2015.
A man takes a picture of the torrents of monsoon storm runoff in the Rillito River near North Craycroft Road south of East River Road on Monday, Sept. 8, 2014.
Eric Johnson, jumps on a raft as friend George Martinez, runs behind him on Monte Vista Drive near Edith Blvd., after an afternoon monsoon flooded many area's in Tucson, Tuesday August 9, 2005.
Mark Cross, in front, and Mario Medina take cover at a bus stop at the intersection of Euclid Avenue and Broadway Boulevard during a monsoon storm. Tuesday July 31, 2007.
A localized downpour hits an area of Tucson north of downtown. Several small but intense cells dropped rain and brought high winds to the area during the first monsoon storm of the season Thursday.
A driver heads south Thornydale Rd crossing a small wash between Cortaro Farms Rd. and Hardy Rd following a monsoon storm that swept down the westside of Oro Valley and Tucson, AZ on July 10, 2018 .
A multi-forked bolt slams to the ground just west of the downtown skyline, part of a monsoon storm that rolled over the area, Wednesday, July 12, 2017, Tucson, Ariz.
While you wait for some summer weather action, check out these photos taken by Arizona Daily Star photographers in the last two decades that show just how powerful and beautiful monsoon season in Tucson can be.
Enjoy this magical time of year. Just remember to stay safe. Seek shelter if you see the big ones coming!