Welcome! Log In Create A New Profile Recent Posts
Dogwood bloom in Yosemite Valley

The Moon is Waxing Crescent (21% of Full)


Advanced

Re: The Age of Megafires

All posts are those of the individual authors and the owner of this site does not endorse them. Content should be considered opinion and not fact until verified independently.

The Age of Megafires
September 21, 2020 08:19PM
The Age of Megafires: The World Hits a Climate Tipping Point
From Siberia to Australia to the western U.S., massive fires have consumed millions of acres this year and spawned fire-generated tornados and other phenomena rarely seen before. Scientists say the world has entered a perilous new era that will demand better ways of fighting wildfires.
BY ED STRUZIK • SEPTEMBER 17, 2020

... Lightning triggers fires, even as far north as Alaska. But no one dreamed that a thunderstorm could shoot out 65,000 lightning strikes and ignite more than 270 fires as one did in Alaska in 2015. More than five million acres burned that year.

Humans are by far the main cause of fire in California. But it was 12,000 lightning strikes that caused the huge blazes this summer, with lightning triggering 585 fires across the state. Southern California’s most destructive fires used to come in the fall, when the hot, dry Santa Ana winds blew in. In recent years, however, summer wildfires have become more common, as UCLA scientist Alex Hall predicted, leaving the state now facing two damaging fire seasons, created in part by the growing number of lightning strikes.

Like so many aspects of the burgeoning number of wildfires, the increase in lightning is connected to climate change. Lighting increases by about 12 percent for every 1 degree Celsius temperature increase. Simple mathematics, and many studies, suggest that there will be much more lightning in some places as temperatures rise by another 2 or 3 degrees C this century in wildlands that are already severely stressed by drought, disease, and insects such as the mountain pine beetle.

https://e360.yale.edu/features/the-age-of-megafires-the-world-hits-a-climate-tipping-point
Re: The Age of Megafires
September 28, 2020 09:02AM
What is it like to live in Napa these days? You never really get used to the strange sunlight through the smoke. You dread the weather forecast, with its high temps, high winds, and low humidity, And every hour your phone pings with yet another notice from the Office of Emergency Services: new evacuation orders, new evacuation warnings: That's where Mark and Ann, live, that's where Fred lives. I hope Sheldon is OK. They've even evacuated the hospital...

And you think through, one more time, what you would take with you if you have to leave in a hurry...

This is the image from this morning. Heartrending.

https://www.arcgis.com/apps/webappviewer/index.html?id=83d73b75423c4201aecd08e15fa8e6e7&extent=-13659550.3695%2C4639276.2578%2C-13602069.7242%2C4670156.8172%2C102100



Check our our website: http://www.backpackthesierra.com/
Or just read a good mystery novel set in the Sierra; https://www.amazon.com/Danger-Falling-Rocks-Paul-Wagner/dp/0984884963
Re: The Age of Megafires
September 29, 2020 06:33AM
City of Calistoga is now under mandatory evacuation orders. Napa Valley College, where I teach a few classes, is now an emergency shelter for refugees from the fires. 68,000 people in Napa and Sonoma counties have been evacuated.

My own home is fine, the fires are a good ten miles north of us, but so many friends have been affected.



Check our our website: http://www.backpackthesierra.com/
Or just read a good mystery novel set in the Sierra; https://www.amazon.com/Danger-Falling-Rocks-Paul-Wagner/dp/0984884963
Sorry, only registered users may post in this forum.

Click here to login