Two tornadoes confirmed by National Weather Service survey teams

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The day after severe storms battered parts of the Houston area, the teams found evidence of at least two tornadoes that hit Humble and Montgomery.

HUMBLE, Texas — The National Weather Service confirmed Sunday that at least two tornadoes touched down in the Houston area late Saturday night and early Sunday morning, according to findings from survey teams.

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EF-1 damage was found near Humble and EF-0 damage near Montgomery. The survey teams continued Sunday to investigate other areas.

Scientists use the Fujita scale to measure tornado damage intensity. An EF-0 means winds were between 40 and 72 mph, and an EF-1 tornado has winds between 73 and 112 mph.

Multiple buildings were destroyed and damage was widespread in the Humble area.

Humble Police Chief Ken Theis said a tornado hit downtown Humble at about 1:30 a.m. and moved northward causing significant damage to multiple businesses and residents.

In Montgomery, the storms ripped roofs off of businesses and homes, some of them under construction just northeast of downtown.

RELATED: Buildings destroyed, multiple trees down from suspected tornado in Humble

The storms formed as a warm front moved northward across the Houston area Saturday, prompting multiple severe thunderstorm, tornado, and flash flood warnings across the region.

Power outages from the storms continued into Sunday afternoon for thousands of customers.