Aerial view of the Whitewater-Baldy Complex Fire, Wunderphoto submitted by AZMountaineer21.

By Dr. Jeff Masters 
31 December 2012

The 2012 U.S. fire season was the 3rd worst in U.S. history, with 9.2 million acres burned – an area larger than the state of Maryland. Since the National Interagency Fire Center began keeping records in 1960, only two years have seen more area burned – 2006, when 9.9 million acres burned, and 2007, when 9.3 million acres burned. Although the 2012 fire season was close to a record for most acreage burned, the total number of fires – 55,505 – was the lowest on record, going back to 1960, said scientists at a December 2012 press briefing at the American Geophysical Union meeting in San Francisco. The average U.S. fire size in 2012 was the highest on record. A September 18, 2012 report, The Age of Western Wildfires, published by the non-profit research group Climate Central, found that the number of large and very large fires on Forest Service land is increasingly dramatically. Compared to the average year in the 1970s, during the past decade there were seven times as many fires larger than 10,000 acres each year, and nearly five times as many fires larger than 25,000 acres. On average, wildfires burn twice as much land area each year as they did 40 years ago, and the burn season is two and a half months longer than 40 years ago. The increase in large fires is correlated with rising temperatures and earlier snow melt due to climate change, but fire suppression policies which leave more timber to burn may also be a factor.

The Top 5 U.S. Wildfires of 2012
Whitewater-Baldy Complex Fire, New Mexico: Largest fire in New Mexico history

The Whitewater-Baldy Complex Fire started as two fires that merged, both caused by lightning. The Whitewater fire was first detected on May 16th, and the smaller Baldy fire was detected a few days earlier on May 9th. These fires then merged on May 24th and together burned a total of 297,845 acres until it was 100% contained on July 23th. Mid-July rain showers helped fire crew contain this fire. This fire was difficult to contain due to rugged terrain with gusty winds, and relative humidity less than 3%. The fire consumed timber, mixed conifer, poderosa pine, pinon/juniper, and grasses. The suppression costs of the Whitewater-Baldy Complex Fire surpassed $23 million, according to the GACC. This is the largest fire in New Mexico history, which surpassed the previous record of 150,000 acres consumed by the Las Conchas Fire in 2011. […]

The Exceptional U.S. Wildfire Season of 2012



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