PHOENIX (3TV/CBS 5) - A line of surprisingly strong storms swept through the Phoenix area Monday afternoon, spawning a funnel cloud in Paradise Valley and then causing the roof of a gas station to collapse in Glendale.

[WATCH: Storm causes gas station roof to collapse in Glendale]

It started in the north Valley when the storm cell formed and it dumped lots of hail and heavy rain. Roads in the area of Loop 101 and State Route 51 looked like it had snowed. Drivers took it slow while on the freeway. Some even pulled over and waited the storm out.

[WATCH: Line of thunderstorms sweeps down Phoenix area]

[WATCH: Funnel cloud in Paradise Valley, hail in East Valley]

[PHOTOS: Surprise storm brings rain, hail in north Phoenix, Scottsdale]

The National Weather Service said up to a quarter-size hail was possible. The line of severe thunderstorms moved south in central and eastern parts of the Valley, bringing heavy rain and lots of hail. Some city streets flooded with so much wet weather in a short amount of time.

[WATCH: Hail in north Phoenix and Scottsdale]

[RADAR: Check storm activity in your area]


A little more than an hour after the Phoenix area got walloped, the roof of a gas station in Glendale collapsed. It happened at 67th Avenue and Bell Road. While there were cars that were damaged, no injuries were reported. 

[WATCH: Rain, hail causes gas station roof to collapse in Glendale]

“I was just writing in my notebook and then I blinked and, out of nowhere, I heard a crash,” said 8-year-old Ava Ramos, who was in the back of a GMC truck that was crushed at the gas station. Her dad had to squeeze her out after their sunroof shattered and water came poured into the truck. The National Weather Service says the weight of the rain and hail is likely to blame for the collapse.


The storm caught some off-guard at Camelback Mountain. Firefighters say a family with small children were making their way down the mountain when the storm came through. They got cold with all the rain and hail and needed the help of rescuers. Firefighters are warming them up before walking them down. When Arizona's Family news chopper was over the mountain, there was so much water, a waterfall formed. 


With temperatures in the 60s, the hail won't stay around for long. That means lots of water will be on the roads for most of the evening. Arizona's Family news chopper spotted multiple areas where drivers were going through flooded streets, including near Lincoln Drive and Shea Boulevard and Camelback Road south of Camelback Mountain.

[WATCH: Storm dumps hail on Phoenix area]

While hail gets all the headlines, there's been a lot of rain. Falcon Field has already received 3/4 of an inch of rain. The area of Tatum and Shea boulevards has received nearly half an inch.

[HOW MUCH: Check latest rainfall totals here]

The National Weather Service issued a severe thunderstorm warning to include Mesa, Scottsdale and Tempe that lasted until 3:30 p.m. Another severe thunderstorm warning was issued for Chandler, Gilbert and Tempe that expired at 4:30 p.m.


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