PHOENIX — Firefighters responded to numerous house and tree fires caused by lightning strikes throughout the Phoenix area Wednesday night.

Monsoon storms moved in from the east shortly before 8 p.m., bringing heavy rain and gusty winds to parts of the Valley.

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As north Phoenix, Paradise Valley and Scottsdale were under a severe thunderstorm warning, Phoenix fire crews said they contained three lightning-caused fires. 

Two of the fires were in Paradise Valley. At Scottsdale Road and Vista Drive, a backyard palm tree caught fire when lightning hit it. Another strike caught brush on fire near Doubletree Ranch Road and Tatum Boulevard, firefighters said. 

Another house fire near Tatum Boulevard and Greenway Road was also caused by lightning. Crews said that fire was non-emergent. 

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After the severe thunderstorm warning expired at 9:45 p.m., a flash flood warning went into effect for Scottsdale, Paradise Valley and downtown Scottsdale until 2 a.m.

The National Weather Service in Phoenix said floodwaters are moving down Indian Bend Wash through Paradise Valley and Scottsdale, and some roadways along the wash may become flooded.

Another flash flood warning is in effect until 1:15 a.m. for Phoenix, Glendale, Peoria, Surprise, El Mirage, Youngtown, Sun City and Sun City West.