National Weather Service says "unprecedented" Harvey flooding is "beyond anything experienced"
Rescuers were fielding thousands of calls from people trapped in Houston Sunday as torrential rain from deadly Hurricane Harvey caused “catastrophic flooding” in the city and across southeast Texas.
"This event is unprecedented & all impacts are unknown & beyond anything experienced," the National Weather Service said Sunday morning.
Heavy rain continued to pour over Houston early Sunday afternoon, with some downtown areas knee-deep in water, and portions of highways completely flooded with as much as 10 feet of water.
"We have had an unprecedented amount of water,” Houston Mayor Sylvester Turner said at a news conference Sunday.
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