Major Incidents | Operations | Slideshow

Hurricane Harvey

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Two kayakers try to beat the current pushing them down an overflowing Brays Bayou from Tropical Storm Harvey in Houston, Texas, Sunday, Aug. 27, 2017. (Mark Mulligan/Houston Chronicle via AP)

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Residents wade through floodwaters from Tropical Storm Harvey Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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Residents sit on a fence surrounded by floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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A man wades through floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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Residents wade through floodwaters from Tropical Storm Harvey Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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Moses Juarez, left, and Anselmo Padilla wade through floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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A truck pushes through floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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A man wades through floodwaters from Tropical Storm Harvey Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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Residents wade through floodwaters from Tropical Storm Harvey Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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A family evacuates their Meyerland home in Houston, Sunday, Aug. 27, 2017. Rescuers answered hundreds of calls for help Sunday as floodwaters from the remnants of Hurricane Harvey rose high enough to begin filling second-story homes, and authorities urged stranded families to seek refuge on their rooftops. (Mark Mulligan/Houston Chronicle via AP)

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A family evacuates their Meyerland home in Houston, Sunday, Aug. 27, 2017. Rescuers answered hundreds of calls for help Sunday as floodwaters from the remnants of Hurricane Harvey rose high enough to begin filling second-story homes, and authorities urged stranded families to seek refuge on their rooftops. (Mark Mulligan/Houston Chronicle via AP)

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An abandoned vehicle sits in flood waters on the I-10 highway in Houston, Texas, Sunday, Aug. 27, 2017. (AP Photo/LM Otero)

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Wilford Martinez, bottom, grabs the median as he is rescued from his flooded car along Interstate 610 in floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston. The remnants of Hurricane Harvey sent devastating floods pouring into Houston Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/David J. Phillip)

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Two people walk down a flooded section of Interstate 610 in floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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Wilford Martinez, right, is rescued from his flooded car by Harris County Sheriff's Department Richard Wagner along Interstate 610 in floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)

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Houston Police SWAT officer Daryl Hudeck carries Catherine Pham and her 13-month-old son Aiden after rescuing them from their home surrounded by floodwaters from Tropical Storm Harvey Sunday, Aug. 27, 2017, in Houston. (AP Photo/David J. Phillip)

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A man helps a woman in floodwaters from Tropical Storm Harvey Sunday, Aug. 27, 2017, in Houston, Texas. The remnants of Hurricane Harvey sent devastating floods pouring into Houston Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/David J. Phillip)

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Evacuees wade down a flooded section of Interstate 610 as floodwaters from Tropical Storm Harvey rise Sunday, Aug. 27, 2017, in Houston. The remnants of Hurricane Harvey sent devastating floods pouring into Houston Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/David J. Phillip)

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People push a stalled pickup through a flooded street in Houston, after Tropical Storm Harvey dumped heavy rains, Sunday, Aug. 27, 2017. The remnants of Harvey sent devastating floods pouring into Houston on Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/Charlie Riedel)

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After helping the driver of the submerged truck get to safety, a man floats on the freeway flooded by Tropical Storm Harvey on Sunday, Aug. 27, 2017, near downtown Houston. (AP Photo/Charlie Riedel)

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A car is submerged on a freeway flooded by Tropical Storm Harvey on Sunday, Aug. 27, 2017, near downtown Houston, Texas. The remnants of Hurricane Harvey sent devastating floods pouring into Houston on Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/Charlie Riedel)

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People evacuate a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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Julie Rios, left, walks out of their flooded neighborhood with newly-met neighbor Gina Delber, right, as they evacuate their homes that are inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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People evacuate a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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Alexendre Jorge evacuates Ethan Colman, 4, from a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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A Jeep drives through a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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People evacuate a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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People evacuate a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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A man walks to his home in a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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Rain from Tropical Storm Harvey falls as a firefighter is wheeled to a waiting ambulance after he became fatigued while fighting an office building fire in downtown in Houston, Texas, Monday, Aug. 28, 2017. (AP Photo/LM Otero)

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Rain from Tropical Storm Harvey falls as a firefighter is wheeled to a waiting ambulance after he became fatigued while fighting an office building fire in downtown in Houston, Texas, Monday, Aug. 28, 2017. (AP Photo/LM Otero)

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Joe Garcia, right, and his dog Heidi ride in Murphy Fire Department's Todd Herrington's boat after being rescued from his flooded home as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Spring, Texas. (AP Photo/David J. Phillip)

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Joe Garcia carries his dog Heidi from his flooded home as he is rescued from rising floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Spring, Texas. (AP Photo/David J. Phillip)

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John and Cathy Cservek hold their dogs Lacy and Iggy while being rescued from their home as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Spring, Texas. (AP Photo/David J. Phillip)

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Kenny Muzny helps direct a rescue boat to his neighbor's home as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Spring, Texas. (AP Photo/David J. Phillip)

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A stranded boat is towed as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Spring, Texas. (AP Photo/David J. Phillip)

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Volunteer rescue boats make their way into a flooded subdivision to rescue stranded residents as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Spring, Texas. (AP Photo/David J. Phillip)

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Volunteer rescue boats make their way into a flooded subdivision to rescue stranded residents as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Spring, Texas. (AP Photo/David J. Phillip)

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A row of tractors are surrounded by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Spring, Texas. (AP Photo/David J. Phillip)

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In this Sunday, Aug. 27, 2017, photo provided by Trudy Lampson, residents of the La Vita Bella nursing home in Dickinson, Texas, sit in waist-deep flood waters caused by Hurricane Harvey. Authorities said all the residents were safely evacuated from the facility. (Trudy Lampson via AP)

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A man standing in the doorway of his flooded home responds to an evacuation offer in a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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A Coast Guard rescue team evacuates people from a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday, Aug. 28, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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Rain continues to fall in Houston from Tropical Storm Harvey, Monday, Aug. 28, 2017. Floodwaters reached the roof lines of single-story homes Monday and people could be heard pleading for help from inside. (Karen Warren/Houston Chronicle via AP)

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Conception Casa, center, and his friend Jose Martinez, right, check on Rhonda Worthington after her car become stuck in rising floodwaters from Tropical Storm Harvey in Houston, Texas, Monday, Aug. 28, 2017. The two men were evacuating their home that had become flooded when they encountered Worthington's car floating off the road. (AP Photo/LM Otero)

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Rhonda Worthington is lifted into a boat while on her cell phone with a 911 dispatcher after her car become stuck in rising floodwaters from Tropical Storm Harvey in Houston, Texas, Monday, Aug. 28, 2017. (AP Photo/LM Otero)

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Shawn Hagdorn helps to cover the roof of his father's home that was damaged in the wake of Hurricane Harvey, Monday, Aug. 28, 2017, in Rockport, Texas. (AP Photo/Eric Gay)

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Evelyn Perkins inspects her home which was destroyed in the wake of Hurricane Harvey, Monday, Aug. 28, 2017, in Rockport, Texas. (AP Photo/Eric Gay)

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Sgt. Chad Watts, of the Louisiana Department of Wildlife and Fisheries, holds Madelyn Nguyen, 2, after he rescued her and her family by boat from floodwaters of Tropical Storm Harvey, which hit Texas last week as a Category 4 hurricane, in Houston, Monday, Aug. 28, 2017. (AP Photo/Gerald Herbert)

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Rescue boats fill a flooded street as flood victims are evacuated as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Houston. (AP Photo/David J. Phillip)

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Demetres Fair holds a towel over his daughter Damouri Fair, 2, as they are rescued by boat by members of the Louisiana Department of Wildlife and Fisheries and the Houston Fire Department during flooding from Tropical Storm Harvey in Houston, Monday, Aug. 28, 2017. (AP Photo/Gerald Herbert)

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Flood victims wait to unload from the back of a heavy duty truck after being evacuated from their homes as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Houston. (AP Photo/David J. Phillip)

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Volunteers and Harris County Sheriff deputies lift an elderly person on a wheelchair over the flooded C.E. King Parkway under the East Sam Houston North on Monday, Aug. 28, 2017, in Houston. (Steve Gonzales/Houston Chronicle via AP)

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People sleep on the floor at the George R. Brown Convention Center that has been set up as a shelter for evacuees escaping the floodwaters from Tropical Storm Harvey in Houston, Texas, Tuesday, Aug. 29, 2017. (AP Photo/LM Otero)

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William Loosemore works at his smoker as he prepares food for first responders, volunteer and those in need of a meal, Tuesday, Aug. 29, 2017, in Rockport, Texas, where recovery after Hurricane Harvey continues. Loosemore is hoping President Donald Trump will stop by during his visit to Texas. (AP Photo/Eric Gay)

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People line up for food as others rest at the George R. Brown Convention Center that has been set up as a shelter for evacuees escaping the floodwaters from Tropical Storm Harvey in Houston, Texas, Tuesday, Aug. 29, 2017. (AP Photo/LM Otero)

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People rest at the George R. Brown Convention Center that has been set up as a shelter for evacuees escaping the floodwaters from Tropical Storm Harvey in Houston on Tuesday, Aug. 29, 2017. (AP Photo/LM Otero)

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Robert Salgado, 2, sleeps on the floor at the George R. Brown Convention Center that has been set up as a shelter for evacuees escaping the floodwaters from Tropical Storm Harvey in Houston, Texas, Tuesday, Aug. 29, 2017. (AP Photo/LM Otero)

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A man stands in floodwaters from Tropical Storm Harvey as he waits to board a boat to help look for evacuees Tuesday, Aug. 29, 2017, in Kingwood, Texas. (AP Photo/Gregory Bull)

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APTOPIX Harvey

Lauren Durst holds onto her ten-month-old son, Wyatt Durst, as they evacuate from the Savannah Estates neighborhood as Addicks Reservoir nears capacity during Tropical Storm Harvey, Tuesday, Aug. 29, 2017, in Houston. (Michael Ciaglo/Houston Chronicle via AP)

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People wade through chest deep water down Pine Cliff Drive as Addicks Reservoir nears capacity due to near constant rain from Tropical Storm Harvey, Tuesday, Aug. 29, 2017 in Houston. (Michael Ciaglo/Houston Chronicle via AP)

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Steven Hathaway searches for people to help in an apartment complex as floodwaters from Tropical Storm Harvey rise Tuesday, Aug. 29, 2017, in Kingwood, Texas. (AP Photo/Gregory Bull)

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Jannett Martinez holds her cat Gigi as she rides a boat out of her neighborhood which was inundated after water was released from nearby Addicks Reservoir when it reached capacity due to Tropical Storm Harvey on Tuesday, Aug. 29, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)

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Interstate 10 is closed due to floodwaters from Tropical Storm Harvey Tuesday, Aug. 29, 2017, in Houston. (AP Photo/David J. Phillip)

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Interstate 69 is covered by floodwaters from Tropical Storm Harvey Tuesday, Aug. 29, 2017, in Humble, Texas. (AP Photo/David J. Phillip)

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Water is released from Lake Conroe Tuesday, Aug. 29, 2017, in Conroe, Texas. (AP Photo/David J. Phillip)

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Donated items sit in a loading dock are as volunteers works to organize the items donated for Hurricane Harvey victims, Tuesday, Aug. 29, 2017, in Dallas, Texas. (AP Photo/Tony Gutierrez)

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Chris Gutierrez, second from right, helps his grandmother, Edelmira Gutierrez, down the stairs of their flooded house and into a waiting fire department truck in the Concord Bridge neighborhood as Addicks Reservoir surpasses capacity due Tropical Storm Harvey, Tuesday, Aug. 29, 2017, in Houston. (Michael Ciaglo/Houston Chronicle via AP)

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Kathryn Loder sorts donated clothing at George R. Brown Convention Center in Houston as Tropical Storm Harvey inches its way through the area on Tuesday, Aug. 29, 2017. ( Elizabeth Conley/Houston Chronicle via AP)

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Volunteer Elizabeth Hill, 8, plays with evacuee Skyler Smith, 7, at a shelter at St. Thomas Presbyterian Church in west Houston as Tropical Storm Harvey continues to affect the area Tuesday, Aug. 29, 2017. (Jay Janner/Austin American-Statesman via AP)

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In this photo provided by Beulah Johnson, evacuees sit in the bleachers at the Bowers Civic Center in Port Arthur, Texas, Wednesday, Aug. 30, 2017, after floodwaters caused by Tropical Storm Harvey inundated the facility overnight. Authorities said it's not clear where the evacuees will go. (Beulah Johnson via AP)

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In this photo provided by Beulah Johnson, evacuees sit in the bleachers at the Bowers Civic Center in Port Arthur, Texas, Wednesday, Aug. 30, 2017, after floodwaters caused by Tropical Storm Harvey inundated the facility overnight. Authorities said it's not clear where the evacuees will go. (Beulah Johnson via AP)

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In this photo provided by Beulah Johnson, people inside the Bowers Civic Center in Port Arthur, Texas, Wednesday, Aug. 30, 2017, are surrounded by floodwaters caused by Tropical Storm Harvey that overcame the facility that was being used as a shelter for those seeking refuge from the storm. Authorities said it's not clear where the evacuees will go. (Beulah Johnson via AP)

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People evacuate a neighborhood inundated after water was released from nearby Addicks Reservoir when it reached capacity due to Tropical Storm Harvey on Wednesday, Aug. 30, 2017, in Houston. (AP Photo/Charlie Riedel)

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Barry Horvitz embraces his wife Kim while standing outside their home after removing items damaged by floodwaters from Tropical Storm Harvey on Wednesday, Aug. 30, 2017, in Houston. (AP Photo/David J. Phillip)

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Tammy Dominguez, left, and her husband, Christopher Dominguez, sleep on cots at the George R. Brown Convention Center where nearly 10,000 people are taking shelter after Tropical Storm Harvey, Wednesday, Aug. 30, 2017, in Houston. They have been at the shelter since evacuating Houston's Northside on Sunday. (Michael Ciaglo/Houston Chronicle via AP)

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Mike Bialka holds a cigar as he makes his way through floodwaters from Tropical Storm Harvey to help a friend secure his home Wednesday, Aug. 30, 2017, in Kingwood, Texas. (AP Photo/Gregory Bull)

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Floodwaters fill the road running through the Lakes On Eldridge North subdivision in the aftermath of Tropical Storm Harvey on Wednesday, Aug. 30, 2017, in Houston. (Brett Coomer/Houston Chronicle via AP)

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A man talks with officers at a roadblock less than three miles from the Arkema Inc. chemical plant Thursday, Aug. 31, 2017, in Crosby, Texas. The Houston-area chemical plant that lost power after Harvey engulfed the area in extensive floods was rocked by multiple explosions early Thursday, the plant's operator said. The Arkema Inc. plant had been left without refrigeration for chemicals that become volatile as the temperature rises. (AP Photo/Gregory Bull)