What role has climate change played in western wildfires, active hurricane season? KSAT Explains

Meteorologists Kaiti Blake and Sarah Spivey examine the weather events that have become politically charged

Wildfires burning in the western part of the country and an extremely active hurricane season: these two weather phenomena have become politically charged. Conversations about both have naturally turned into conversations about climate change.

But what role has climate change played in the fires and this hurricane season?


In this week’s episode of KSAT Explains, meteorologists Kaiti Blake and Sarah Spivey explain why the answer to that question is nuanced.

Western Wildfires

You’ve probably seen the images by now. In early September, video and pictures emerged of a creepy, orange glow filling the skies over San Francisco due to smoke from surrounding fires.

Under darkened skies from wildfire smoke, a man crosses Hyde Street with Alcatraz Island and Fisherman's Wharf in the background Wednesday, Sept. 9, 2020, in San Francisco. People from San Francisco to Seattle woke Wednesday to hazy clouds of smoke lingering in the air, darkening the sky to an eerie orange glow that kept street lights illuminated into midday, all thanks to dozens of wildfires throughout the West. The picture was taken in the middle of the day at 12:29 p.m. (AP Photo/Eric Risberg) (Copyright 2020 The Associated Press. All rights reserved)

Wildfires have affected several states this year, but it certainly seems that California has been experiencing the worst of it.

Here’s an overview of the the damage the wildfires have caused in California as of Oct. 7:

  • More than 8,300 wildfires
  • More than 8,600 structures damaged
  • At least 31 people killed
  • Nearly four million acres burned

And the cost of fighting and suppressing wildfires in California is costly. Cal Fire estimates it could cost more than $370 million this year.

That number is part of a troubling trend. Take a look at the chart below to see how much costs to suppress wildfires have increased.

Rising cost of suppressing wildfires. (Copyright 2020 by KSAT - All rights reserved.)

According to the Congressional Research Service, across the United States, ongoing wildfires in 2020 have already surpassed the 10-year annual average.

Acres burned by wildfires in the United States. (Copyright 2020 by KSAT - All rights reserved.)

It’s a serious problem. But what’s making these wildfires worse? And what can be done to ensure improvements in the years to come?

The answer to both of these questions is twofold: both forest management and climate change.

Without proper attention to both issues, the wildfire situation on the West Coast could be repeated and made worse in years to come.

An Active Hurricane Season

For only the second time in history, the 2020 hurricane season has been so active it has exhausted the English alphabet.

The only other time this has happened was in 2005. That was the year of the devastating Hurricanes Katrina, Rita and Wilma.

And while this year has not been as catastrophic as 2005, Hurricanes Hanna, Isaias, Laura and Sally have caused more than $22 billion in damage.

Shawn Pugsley surveys the damage to a private marina after it was hit by Hurricane Hanna, Sunday, July 26, 2020, in Corpus Christi,Texas. Nolan's boat and about 30 others were lost or damaged in the storm. (AP Photo/Eric Gay) (Copyright 2020 The Associated Press. All rights reserved.)

This year is on schedule to be the most active Atlantic Hurricane season on record.

Of these storms, nine have made landfall on the U.S. mainland. And with Hurricane Delta expected to make landfall along the Gulf Coast after this episode debuts, we’ll have the most named storms to ever make landfall on the U.S. mainland in a single season.

Hearing this, it would be easy to attribute the increased activity to climate change. You would be partially correct, but it’s a bit more complicated than that.

What You Can Expect In This Episode of KSAT Explains

  • An explanation of what forest management has to do with the western wildfires
  • A look at how winds, heat and drier conditions contribute to the fires
  • What makes hurricane frequency and intensity more intense

About the Authors:

Kaiti Blake is a child weather-geek-turned-meteorologist. A member of the KSAT Weather Authority, Kaiti is a co-host of the Whatever the Weather video podcast. After graduating from Texas Tech University, Kaiti worked at WJTV 12 in Jackson, Mississippi and KTAB in Abilene.

Sarah Spivey is a San Antonio native who grew up watching KSAT. She has been a proud member of the KSAT Weather Authority Team since 2017. Sarah is a Clark High School and Texas A&M University graduate. She previously worked at KTEN News. When Sarah is not busy forecasting, she enjoys hanging out with her husband and cat, and playing music.