ZME Science
No Result
View All Result
ZME Science
No Result
View All Result
ZME Science

Home → Other → Offbeat

The hot world of the fire tornadoes

They're big, they're bad, and they'll burn your house down.

Mihai AndreibyMihai Andrei
March 8, 2011 - Updated on February 22, 2019
in Offbeat
A A
Share on FacebookShare on TwitterSubmit to Reddit

RelatedPosts

No Content Available

Sometimes, nature just goes crazy and mixes fire and tornadoes. Fire tornadoes are a real thing and they’re scary as hell.

The Douglas Complex fires in 2013 caused fire whirls on Rabbit Mountain. Image credits: Oregon Department for Forestry.

Fire whirls, fire devils, or even firenadoes, as they are known, are not at all as uncommon as you might think. Still, they are extremely rarely documented because they tend to appear in forest wildfires more often than in urban fires. As the saying goes, if a fire tornado erupts in the middle of the forest, does it still scare someone?

Most photos of fire tornadoes are from far away… can you guess way? Fire whirl at Great Dismal Swamp Refuge (VA). Image credits: U.S. Fish and Wildlife Service.

Fire tornadoes are pretty much what you would expect from them; in certain specific conditions, a fire can acquire vertical vorticity (tendency to spin) and form a whirl. The formed tornado is usually 10-50 meters tall and only a few meters wide, but it has a significant destructive potential, not only because of the wind, but because it can spread the fire even further, and it’s extremely unpredictable. However, they can grow up to gargantuan sizes, more than half a kilometer, with winds of over 150 km/h. Usually, they last only a few minutes, but there have been reported cases with fire tornadoes lasting almost an hour. The important thing here is that the fire itself causes the whirl — it’s not like a pre-existing whirl simply catches on a fire, it’s the fire that promotes this phenomenon.

An unexpected firenado develops at a Belgian festival. Image credits: Barry Mulling.

True fire tornadoes are quite rare, much more so than fire whirls. But when they do strike, they strike with incredible voracity. In order to imagine just how deadly a fire tornado can be, we would have to go back in time, to an earthquake that took place in 1923, in Japan. The earthquake led to a huge fire that in turn, created a fire tornado. It took the tornado just 15 minutes to kill 38.000 people. Another remarkable example dates from 1926, when lightning struck an oil storage facility near San Luis Obispo, California. Many fire whirlwinds were produced, wreaking havoc on the facility. More recently, the 2017 Port Hills fires in Christchurch also created several fire tornadoes.

A small experimental fire tornado; via Giphy.

Researchers have tried to develop models to predict the emergence of fire whirls. Robert Meroney, from the Colorado State University, built an experimental fire tornado (needless to say, don’t try it at home) and predicted, to some extent, their development. However, fire tornadoes remain a rather erratic phenomenon, with little in the way of predictability.

Even experienced firefighters are sometimes taken by surprise by them, as was the case with this fellow, who had to run and jump in a river to escape one.

Tags: fire tornadofire whirl

ShareTweetShare
Mihai Andrei

Mihai Andrei

Dr. Andrei Mihai is a geophysicist and founder of ZME Science. He has a Ph.D. in geophysics and archaeology and has completed courses from prestigious universities (with programs ranging from climate and astronomy to chemistry and geology). He is passionate about making research more accessible to everyone and communicating news and features to a broad audience.

Related Posts

No Content Available

Recent news

The Worm That Outsourced Locomotion to Its (Many) Butts

May 16, 2025

The unusual world of Roman Collegia — or how to start a company in Ancient Rome

May 16, 2025
Merton College, University of Oxford. Located in Oxford, Oxfordshire, England, UK. Original public domain image from Wikimedia Commons

For over 500 years, Oxford graduates pledged to hate Henry Symeonis. So, who is he?

May 16, 2025
  • About
  • Advertise
  • Editorial Policy
  • Privacy Policy and Terms of Use
  • How we review products
  • Contact

© 2007-2025 ZME Science - Not exactly rocket science. All Rights Reserved.

No Result
View All Result
  • Science News
  • Environment
  • Health
  • Space
  • Future
  • Features
    • Natural Sciences
    • Physics
      • Matter and Energy
      • Quantum Mechanics
      • Thermodynamics
    • Chemistry
      • Periodic Table
      • Applied Chemistry
      • Materials
      • Physical Chemistry
    • Biology
      • Anatomy
      • Biochemistry
      • Ecology
      • Genetics
      • Microbiology
      • Plants and Fungi
    • Geology and Paleontology
      • Planet Earth
      • Earth Dynamics
      • Rocks and Minerals
      • Volcanoes
      • Dinosaurs
      • Fossils
    • Animals
      • Mammals
      • Birds
      • Fish
      • Amphibians
      • Reptiles
      • Invertebrates
      • Pets
      • Conservation
      • Animal facts
    • Climate and Weather
      • Climate change
      • Weather and atmosphere
    • Health
      • Drugs
      • Diseases and Conditions
      • Human Body
      • Mind and Brain
      • Food and Nutrition
      • Wellness
    • History and Humanities
      • Anthropology
      • Archaeology
      • History
      • Economics
      • People
      • Sociology
    • Space & Astronomy
      • The Solar System
      • Sun
      • The Moon
      • Planets
      • Asteroids, meteors & comets
      • Astronomy
      • Astrophysics
      • Cosmology
      • Exoplanets & Alien Life
      • Spaceflight and Exploration
    • Technology
      • Computer Science & IT
      • Engineering
      • Inventions
      • Sustainability
      • Renewable Energy
      • Green Living
    • Culture
    • Resources
  • Videos
  • Reviews
  • About Us
    • About
    • The Team
    • Advertise
    • Contribute
    • Editorial policy
    • Privacy Policy
    • Contact

© 2007-2025 ZME Science - Not exactly rocket science. All Rights Reserved.