"Sometimes, it's hard to fathom what could happen in these potentially dangerous storms," said Harris County Flood Control District Meteorologist Jeff Lindner on Friday night.
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Gov. Greg Abbott declared a state of emergency in all 254 Texas counties ahead of the severe weather on Sunday that is expected to bring temperatures in the teens, ice, sleet and possibly snow to most of the Houston area.
Icy roads are a big concern. TxDOT started pre-treating roadways with a salt mix on Friday.
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On Saturday, the city of Houston will dispatch 100 dump trucks to also prepare, but Mayor Sylvester Turner is asking people to simply stay home starting Sunday.
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"Please stay off the roads starting Sunday night through Tuesday. Unless it's a dire, super critical situation, I'm going to ask you to stay off the road," he said.
Meanwhile, the Office of Emergency Management will be open this weekend. On Sunday, the George R. Brown Convention Center will become a warming center for those with nowhere to go.
READ MORE: George R. Brown to open as warming center during winter storm
American Red Cross volunteers began loading up and delivering supplies, such as cots and blankets to the GRB on Friday.
Lindner said the storm and its aftermath, with potentially dangerous road conditions, power outages, and damage, will be one Texans have not seen in more than three decades.
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Harris Co. meteorologist on winter weather: 'This is the real deal'
If he is wrong, he said he's OK with it.
"I would certainly rather have people telling me after that this was overblown and I didn't have any issues, than [have] house after house after house with broken pipes," he said.
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