2024 Climate Records, Near Records

1/17/25 – According to the National Oceanic and Atmospheric Administration (NOAA), 2024 was a year for climate records and near records. 2024 was the:

  • Warmest year in the contiguous United States in 130 years
  • Third wettest year of the climate record in the contiguous United States
  • Second worst year for tornadoes (with 1,735 confirmed to date)
  • Second highest year for billion-dollar weather disasters in 45 years. Twenty-seven cost a total of $182.7 billion (which was the fourth highest price tag on record).
  • Fourth highest year for hurricanes making landfall in the U.S.

Graphic Recap of 2024’s Most Significant Climate and Weather Events

The maps below come from the NOAA’s National Centers for Environmental Information (NCEI). The first shows significant climate events during 2024.

Billion-Dollar Weather and Climate Disasters

The second map shows the location and dates of the 27 billion-dollar disasters.

NOAA says 2024 ranks second highest for number of billion-dollar disasters in a calendar year, one event behind 2023’s record 28 events. The total annual cost in 2024 – $182.7 billion – may rise by several billion as additional costs from identified events are reported.

Since records began in 1980, the U.S. has sustained 403 separate weather and climate disasters where overall damages/costs reached or exceeded $1 billion. All costs are adjusted to 2024 dollars based on the Consumer Price Index (CPI). The total cost of these 403 events exceeds $2.915 trillion.

Since 1980, the U.S. has experienced an average of nine billion-dollar disasters per year. So 2024 tripled the average.

National Centers for Environmental Information

This is also a record 14th consecutive year when the U.S. experienced 10 or more billion-dollar disasters.

Other Stats and Key Points

The average annual temperature of the contiguous U.S. was 55.5°F, 3.5°F above average and the warmest in the 130-year record. 

Seventeen states (Texas, Oklahoma, Minnesota, Wisconsin, Michigan, Indiana, Ohio, Kentucky, Tennessee, West Virginia, Virginia, Pennsylvania, Maryland, New York, Vermont, New Hampshire and Maine) ranked warmest on record while all but two remaining states across the Lower 48 ranked as one of the warmest five years on record.

Annual precipitation for the contiguous U.S. was 31.58 inches, 1.66 inches above average, ranking in the wettest third of the historical record (1895–2024). 

The Atlantic basin saw 18 named tropical cyclones and five landfalling hurricanes during 2024—an above-average season. Hurricane Helene was the seventh-most-costly Atlantic hurricane on record.

The tornado count for 2024 was second highest on record behind 2004 (1,817 tornadoes) with at least 1,735 confirmed tornadoes. When looking at EF-2+ tornadoes, 2024 was the most active year since the historic 2011 season.

Hurricane Helene’s extensive damage topped the list of 27 separate billion-dollar weather and climate disaster events identified during 2024.

Be cautious about generalizing about trends from these numbers. Almost every one of the stats references other record years from decades or even a century ago.

For More Information

For more detailed climate information, check out NOAA’s comprehensive Annual 2024 U.S. Climate Report. For additional information on the statistics provided here, visit NOAA’s Climate at a Glance and National Maps webpages.

Posted by Bob Rehak on 1/17/2025 based on information from NOAA and NCEI

2698 Days since Hurricane Harvey

 

Ramsey, Flickinger Discuss Status of Flood Projects

1/16/2025 – Harris County Precinct 3 Commissioner Tom Ramsey, PE, and Distict E Houston City Council Member Fred Flickinger discussed the status of numerous flood projects at a meeting of the Kingwood Area Republican Women today at the Oakhurst Golf Club.

Ramsey addressing Kingwood Area Republican Women’s Club today.

Among the projects they covered were:

  • Taylor Gully Improvements/Woodridge Village Detention
  • Kingwood Diversion Ditch Improvements/Upstream Detention
  • Additional Floodgates for Lake Houston
  • Legal Changes Governing Pre-Release of Water from Lakes
  • Edgewater Park
  • Dredging
  • Medians
  • Flood Tunnels
  • Subsidence

Below are the highlights. They also discussed other issues such as median maintenance, vine control, crime, taxes, government waste, elections and more. But I will focus primarily on infrastructure issues related to flooding – especially Taylor Gully and Woodridge Village, because of pending approvals this month.

Taylor Gully/Woodridge Village

After Perry Homes clearcut approximately 270 acres in Montgomery County, hundreds of Kingwood homes flooded twice in 2019 along Taylor Gully. Taylor Gully runs through the northern part of Kingwood from Kingwood Park High School to White Oak Creek.

Taylor Gully/Woodridge Village

Harris County Flood Control District (HCDFC) began working on mitigation plans in 2021 and presented preliminary recommendations to the community in December, 2022.

The county had high hopes for funding from the Texas General Land Office (GLO) and U.S. Department of Housing and Urban Development (HUD), but those ran into a potential snag. Taylor Gully improvements fit within available HUD funding, but Woodridge Village (the former Perry Homes Property) did not. HCFCD hoped to build more stormwater detention basin capacity on Woodridge to help control Taylor Gully expenses downstream.

Regardless HCFCD pressed forward. They combined the two projects. And according to HCFCD, both now fit with available funding capacity (see “above the line” list on page 2) of the list being presented to Commissioners Court next week on 1/23/25.

The county purchased Woodridge Village in February 2021. Shortly thereafter, HCFCD began an excavation and removal (E&R) contract to get a “head start” on the basins. Indeed, the head start brought the total stormwater detention on the site almost to Atlas-14 standards.

However, HCFCD was forced to terminate the E&R contract before the basins could be completed. That was to comply with HUD requirements while HUD considered the grant application.

This is potentially great news for the people who live in Sherwood Trails, Elm Grove, Mills Branch and Woodstream.

Watch commissioner’s court closely next Thursday. The Kingwood area drainage study named this project as one of the two most important in Kingwood.

Kingwood Diversion Ditch and Upstream Detention

The Kingwood Diversion Ditch was the other of the two most important projects. The Diversion Ditch takes floodwaters out of Bens Branch, which runs diagonally through the center of Kingwood from St. Martha Catholic Church to River Grove Park.

Improving the Diversion Ditch would reduce flood risk for hundreds of homes and apartments, Kingwood High School, Town Center, and Kings Harbor. Both Bens Branch and the Diversion Ditch currently have a two-year level of service. That means they have a 50% chance of coming out of their banks in any given year.

The District started preliminary engineering in mid-2021. HCFCD will finally present that report to Commissioners Court on February 6, 2025.

Ramsey estimated today that the project could cost $60 million. However, he also indicated that U.S. Congressman Dan Crenshaw “got us enough money so we can do the final engineering.”

Eric Heppen, Precinct 3 engineer, later stated that once Commissioners Court approves the preliminary report, it will be made public.

Flickinger emphasized that he is talking with Montgomery County, trying to get them to retain more of their floodwaters. He raised concerns about a new 200,000 sq. ft. convention center planned for US59 at Valley Ranch. “That will generate a lot of runoff that could come down to us, unless we work together to find a way to hold that water up there.”

Houston City Council Member Fred Flickinger at same meeting.

Additional Floodgates for Lake Houston

Shortly after Harvey, many people pinned their flood-mitigation hopes on additional floodgates for the Lake Houston dam. The idea: to lower the lake faster when it becomes certain that a storm will flood the area. The existing gates have 1/15th the capacity of Lake Conroe’s. So Lake Houston must start releasing far earlier in advance of storms than Lake Conroe. And by the time Lake Houston is lowered, storms can veer away, wasting valuable water.

So Conroe tends to hold its water back until it is absolutely certain. At that point, it has no other choice than to release water at high rates that flood people downstream.

Being able to lower Lake Houston faster would let Lake Conroe release earlier and slower, smoothing out flood peaks downstream.

Ramsey estimated the cost of 11 new floodgates that could release 80,000 cubic feet per second at $150 million. He said the final engineering should be completed this year. He also said that bidding and construction could start in 2026.

Legal Changes Governing Pre-Release of Water

Flickinger addressed a related legal issue. State law limits the release of water from lakes; it must be only for defined beneficial uses and flood control is not one of them.

So, Flickinger is working with State Rep. Charles Cunningham to change that and increase the limit. “Bottom line,” he said, “is that we need to release more water sooner rather than holding it back until we’re adding to the crest of the flood.”

Flickinger is also working with the San Jacinto River Authority on these changes.

Edgewater Park

After Harvey, the County acquired land on the northeast corner of the West Fork and US59, which will turn into Edgewater Park. It will also connect the Houston Parks Board’s West Fork Greenway with the Spring Creek Nature Trail. Ramsey said the plans will be made public very soon. After the meeting, Precinct 3 engineer Eric Heppen confirmed the plans were 99% complete.

Ramsey said, “Soon, you’ll be able to go from Kingwood to Tomball and not cross a road.” That should be a tremendous draw for hikers and bikers and the entire area.

Dredging

Flickinger discussed two aspects of dredging not covered in last night’s post. First, he is seeking additional funding to continue the current program while the dredge is on the lake. Second, he feels opportunities exist to increase efficiency.

I asked what he meant by that. FEMA restrictions on the funds currently being used limit the dredging to “pre-Harvey” conditions. That means, Callan Marine, the contractor, must dredge to different depths to match the exact bottom profile that existed before Harvey. And that requires repositioning the dredge more than if you were just dredging to a uniform depth across wide areas.

The search for additional funding has led Flickinger to the City, the Coastal Water Authority (CWA) and former State Representative Dan Huberty. Huberty was appointed to the board of CWA last last year by Houston Mayor John Whitmire.

Medians

Several people from the audience questioned Flickinger about the medians along Kingwood Drive. He touted the success of his first Median Madness event in November 2024 and announced another on February 22, 2025. Mark your calendar now.

More than 50 volunteers participated in the last vine-cutting extravaganza. He hopes for many more volunteers this time.

Flood Tunnels

The county is getting ready to launch the next phase of its flood tunnel study. Ramsey emphasized that there isn’t enough room in Harris County to poke enough holes in the ground to solve all of our flooding problems. He sees tunnels that carry floodwater from strategic locations as essential parts of the solution.

Eric Heppen, Ramsey’s engineer said that by burying the 40 foot tunnels 80 feet underground, you can double the conveyance in some watersheds, sidestep environmental issues, and avoid having to condemn property.

But many issues have yet to be worked out. For instance, will tunnels be constructed to relieve 2-year, 5-year, 10-year, 25-year or 50-year flooding? More to follow when details become available.

Subsidence

Harris County estimates the area east of Lake Houston will grow by 18,000 homes in the next 10 years. But there currently are no plans to provide them with surface water. So, they will pump groundwater. That means subsidence. And subsidence means flooding, according to Ramsey. He pointed to Conroe as an example. The City’s groundwater pumping has caused subsidence as far south as Harris County.

Posted by Bob Rehak on 1/16/25

2697 Days since Hurricane Harvey

New West Fork Dredging Program Off to Fast Start

1/15/25 – The City of Houston’s latest West Fork Dredging Program appears to be off to a fast start. Dredging began about a month ago and has already filled up approximately 10 percent of the placement area. The program was originally estimated to last two years.

Before it’s all over, Callan Marine, the contractor, will dredge 876,672 cubic yards of West Fork sediment from 181 acres near the mouth of the West Fork in Lake Houston.

Shortly after sunrise yesterday, Callan Marine’s General Pershing Dredge lifted its bit out of the water temporarily as the dredge was repositioned. Note the FM1960 bridge downstream in the upper right.

Pictures Taken 1/14/25

Yesterday morning, the Callan dredge was anchored off Atascocita Point. Just three weeks ago, it began across the river in Kingwood. The pictures below tell the story.

Looking N. Atascocita Point on left and Kingwood on far side of river. Can you spot the Kings Point water tower?

Callan will pump slurry to the placement area through that winding 18″ pipe in the photo above. It goes approximately four miles to an area near the Luce Bayou Interbasin Transfer Canal. See pictures below.

The Amazing Maze

There, Callan separates the water from sand and silt with an ingenious maze. The twists and turns in the maze slow the water down, so sediment drops out of suspension.

Water comes in at the upper right and exits near the same point. Note how the sediment is higher on the wall near the entry, then tapers off. To visually estimate percentage of completion, compare levels on both sides of the diagonal berm in right foreground.

The 35-acre pond currently in use is surrounded by berms approximately 6-8 feet tall that contain the slurry. Callan has room at this same site to build another pond of approximately the same size. The two together will total 70 acres.

Cleared but unfinished area in foreground will contain a second pond. Luce Interbasin Transfer Canal on right.
Notice how bulldozers have built small temporary walls that channel the slurry away from areas where fill has already reached the full height of the berms.
When filled, this area will be high and hard enough to build new homes on.

Bulldozers spread the sediment out in layers that allow excess water to drain out or evaporate. One dredging expert told me that when dry, the sediment will be hard enough to support foundations and homes.

Small, low temporary berms within the placement area concentrate the slurry where workers want it to go.

Water that Doesn’t Evaporate Returns to the Lake

The pictures below track the movement of water within the placement area.

Slurry shoots in from the dredge almost 4 miles away.
Then bulldozers spread out and compact the dirt.
Water that doesn’t evaporate eventually makes its way through the maze back to the two pipes (center at bottom)
Boards in front of the exit pipes control the level of water in the pond and the rate of outflow.
After dirt is separated from the water, any remaining water that doesn’t evaporate re-enters Lake Houston (upper left).

Comparison with December

To see how much progress Callan has made, compare the pictures above with the one below taken, just three weeks ago.

Progress as of 12/21/24.

Beneficial Use

I wonder if that return channel will become a ready-made detention basin when the landowner develops the site. This is an ingenious example of “beneficial use” – turning a problem into a solution.

Up the Down Escalator

Nevertheless, there is a cost associated with dredging. Funding for the program comes from FEMA via U.S. Congressman Dan Crenshaw. The City will use money left over from previous West Fork Mouth Bar dredging. Crenshaw secured $125 million in federal funding to cover dredging, including phases already completed.

Some of the sediment shown above comes from natural erosion. Some also comes from upstream sand mining.

With 20 square miles of sand mines in a 20-mile reach of the West Fork between I-45 and US59, the average width of exposed sediment during floods is one mile.

Sometimes I compare flooding issues to trying to walk up a down escalator.

In this case, we’ve failed to establish an effective regulatory regime based on a comprehensive set of best management practices for sand mines. And the public is paying the price in terms of increased flood risk and mitigation costs.

If you haven’t already written the TCEQ to register your concerns about their proposed (but inadequate) best management practices for sand mining, please do so. The public comment period ends on January 24. This post contains more about the problems with the TCEQ’s proposed BMPs. Texans for Responsible Aggregate Mining has even bigger concerns which I posted about yesterday.

Please mail your concerns to Jess Robinson, MC 175, Office of Legal Services, Texas Commission on Environmental Quality, P.O. Box 13087, Austin, Texas 78711-3087. Or you may submit them electronically.  Comments must be received by 11:59 p.m. on January 24, 2025, and should reference “APO BMP List Proposal.”

So far, only a handful of people have registered public comments. So please help.

Posted by Bob Rehak on 1/15/25

2696 Days since Hurricane Harvey

The thoughts expressed in this post represent opinions on matters of public concern and safety. They are protected by the First Amendment of the US Constitution and the Anti-SLAPP Statute of the Great State of Texas.