20 years ago today, Hurricane Katrina made landfall in New Orleans, Louisiana. It remains the costliest natural disaster in U.S. history.
At the time, I was working here at KPRC 2. I remember the forecast, the landfall, and the stories that unfolded with striking clarity. I shared those memories on air, and if you have a couple of minutes, I invite you to press play below and watch.
While Hurricane Katrina never struck Houston directly, it cast a long shadow over our city. Just one month later, when Hurricane Rita aimed at the Texas coast, the fear from Katrina was still raw.
Forecasting Rita was a challenge, not because of the storm itself, but because of what people had just witnessed in New Orleans. Despite Houston’s very different geography, the images of flooded homes and desperate rescues were impossible to forget.
That fear drove an estimated three and a half million people to flee the Houston area. Highways became parking lots, families ran out of gas in the sweltering heat, and tragically, more lives were lost in the evacuation than in the storm itself.
I sat down with Mark Sloan, Harris County’s Emergency Management Coordinator, who worked both hurricanes, Katrina and Rita. We both agree: Katrina shaped the Rita evacuation, and we lost control of the message.
Press play to hear his perspective and see what Houston looked like 20 years ago.
It was 20 years ago. Hurricane Rita, a Category 5 storm in the Gulf of Mexico, was moving north, and for those who remember, it felt like everyone evacuated.
“It was an interesting time, because we had just gone through Katrina and were sheltering thousands of evacuees here,” Sloan recalled. “The traffic… people were reacting to what had happened in New Orleans. They were trying to save themselves. But we created another disaster within a potential disaster.”
The images on TV told the story: highways jammed, cars at a standstill, millions trying to leave at once. I asked him what was going through his mind as he saw everything unfold.
“We needed to get people to a safe location,” Sloan said. “But we really didn’t have a true hurricane evacuation plan at the time. That was the first time it was implemented, voluntary or mandatory evacuations. But everybody left almost at the same time. Three million people got on the roads, all trying to protect themselves and their families.”
It was chaos. People outside of evacuation zones in Katy, Tomball, and The Woodlands also hit the road.
“People were running out of fuel,” Sloan added. “Vehicles were stranded. We couldn’t get first responders to those who needed help. The lessons we learned led to changes. By Hurricane Ike, evacuations were staged, calmer, and far more effective. People understood the process, and it worked well.”
Looking back 20 years later, the evacuation maps themselves were new and confusing. Residents weren’t sure what their color zones were. That confusion, paired with the fear of Katrina, shaped the largest and most chaotic evacuation in U.S. history!
Sloan remembers one of the biggest challenges during Rita was the evacuation map itself.
“One of the cue cards showed that if you lived in the blue area, you needed to leave. But defining that blue area hadn’t been done; it was just a visual,” he recalled. “People asked, ‘How far from the coast am I? Do I evacuate?’ And the truth is, we weren’t just evacuating the blue. We evacuated the yellow and purple, too. And many people couldn’t even tell the colors apart. It was a lesson we’ll never forget. Even 20 years later, it’s a reminder for families to have a plan, protect their property, and never forget about their pets.”
Because of those lessons from Rita, the system has been completely redesigned. Today, Houston’s evacuation map is based on color-coded ZIP codes, making it much clearer who should leave and when. Evacuation routes are staged, supported with gas stations, traffic control, and emergency responders, ensuring families have a safer, smoother way out when the next storm comes. When Hurricane Ike was headed our way, the evacuation was smoother and safer.
Rice University conducted a study after the storm and found, if your neighbor evacuated, you left too.
The overall takeaway is simple: know your zone, know your plan, and stay ready. Hurricanes will always come and go, but the lessons of Katrina and Rita remind us that how we respond can save lives. And because history is the greatest teacher, that’s something worth remembering not just 20 years later, but every hurricane season.