For Arizona and New Mexico, Climate Change and a Mangled Jet Stream Means Fire Season Now Starts in February

Isleta-Pueblo-Fire

(500 acre wildfire burns near Isleta in New Mexico on February 19th. Image source: KOAT)

It’s late winter in Arizona and New Mexico. Or at least that’s what the calendar says. During this time of year, snow packs should grace the mountain peaks and cool breezes should blow down into the valleys. A train of west coast moisture should be riding over the mountains of California, bringing with it the occasional snow or rainstorm.

Not so this winter. The blocking pattern over the west coast has mostly held strong — pumping warm, dry air up from the southwest. This warm flood has resulted in continued severe drought conditions ranging from Texas through New Mexico, Arizona and Nevada. Most of California still reels under the worst drought seen in at least a century. While according to reports from the US Drought Monitor, New Mexico experienced its driest January on record. And though the 10 month long blocking pattern barring the Pacific moisture flow briefly fluttered in early February, it has since reasserted itself.

Drought monitor west February 18

(Drought Monitor showing 60% of the Western US suffering from some level of drought. Image source: United States Drought Monitor.)

The result, for Arizona and New Mexico, is unprecedented. For all across these states, weather conditions are pointing toward the beginning of an entirely different season. Humidity levels are excessively low. Temperatures are warm or abnormally warm. And abundant dessicated vegetation covers the hills and valleys. It is a set of conditions that usually don’t begin to ramp up until May. The season of burning and of combustive heat — fire season. In February.

0.1 Inches of Rainfall, Brush Fires Encroaching on Cities

One needn’t look too far to find causes for an early emerging fire hazard. The region of Tuscon, for example, only received a tenth of an inch of rainfall throughout the entire month of January. Throughout February, moisture levels have remained exceptionally low with relative humidity often ranging into the single digits. The result is that vegetation which briefly exploded during a period of abnormally intense rainfall this summer has become withered and dessicated, providing ample and highly combustible fuel should any ignition source emerge.

These are the conditions we should expect as a result of human caused climate change — very intense precipitation followed by very intense dryness along with Jet Stream patterns that tend to become stuck as Arctic sea ice loss and polar amplification in the Arctic accelerates.

Arizona New Mexico February

(Smoke from sporadic brush fires visible over regions of central and southern Arizona and New Mexico that are now virtually devoid of any snow pack, even in February. Image source: Lance-Modis/NASA.)

Even worse, the snow packs for the region, which for years have been steadily receding under a regime of increasing temperatures, are now practically non-existent. Snow pack usually aids in the suppression of ridge and mountain fires until late spring by locking in soil moisture, adding moisture to dry air, and creating runoff that is a natural barrier to fires. Not so for 2014 as there is simply no snow pack to speak of.

In addition to the 500 acre Isleta New Mexico fire, such dry conditions have already led to a spate of brush fires that have encroached on major cities in the region, prompting officials to warn of the, above mentioned, very early start to fire season. According to reports from the Arizona Daily Star:

The recent warm weather, dry conditions and a spate of brush fires on the outskirts of major cities of Arizona and New Mexico are prompting warnings that the 2014 wildfire season is already underway.

The result is that fire warnings have been raised as tinder-box conditions of low humidity, temperatures ranging into the upper 70s, strong winds, and amply abundant fuel persist and intensify. And given that the fire risk began in February, we can expect a very, very long fire season ahead.

Winter Fires Ranged from California to the Arctic in 2014

Unfortunately, Arizona and New Mexico were not the only regions suffering from winter fire seasons during early 2014. California, suffering its worst period of drought in at least 100 years, saw a set of powerful fires rage through Colby near Los Angeles in January. Meanwhile, freakish fires burned near the Arctic Circle in Norway just a week later. Now Arizona and New Mexico add an initiation of fire season in February to the unprecedented tally.

Links:

Fire Season Already Underway in Arizona

Isleta Fire Now 466 Acres

United States Drought Monitor

Lance-Modis/NASA

2000 Acre Colby Fire Rages Near Los Angeles in Winter

Arctic Wildfires in Winter

Hat tip to Collapse of Industrial Civilization

Hat tip to Miep

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18 Comments

  1. I read somewhere, I can’t remember where, that last month was the driest January on record in New Mexico.

    Reply
    • Probably Climate Central:

      http://www.climatecentral.org/news/play-it-again-january-continues-globes-warm-trend-17097

      With all that dryness, it doesn’t take much heat to start a fire. Same thing happened in Norway…

      Reply
      • Drought monitor. It’s noted on NOAA too.

        Low snowpack won’t help matters much either. We’re relatively good over here but the western part of the state is low in reserves.

        Reply
        • Fits with the climate model projections for this region…

        • Thanks for the catch on this one. I included it in the article and credited you for your help.

          Also, upon visiting your page I discovered you hadn’t popped up in my feed for a while. Don’t really know why that is the case. But I read a few of your articles and found I enjoyed them very much.

          Hope all is well with you!

        • Thanks!

      • The wordpress feed does not really work as advertised. I have an extensive list of sites I watch and many never appear in my reader so I don’t know how the system really works and why so many article get lost in the shuffle.
        Another funny thing is that I am now getting followers daily who are not real people. Just “spamming followers”.

        Reply
      • It really is a sea of information out there and I’d love to be able to have a program that would collate all the daily essays and articles from the sites I follow, allowing me to search and filter with key words or phrases — sort of like what the NSA is supposedly able to do with its ‘cloud ‘ of collected information. Don’t know if there is such a program out there, but it would make life easier for me for sure… or I could just join the masses and become blissfully unaware. I suppose at some point for the sake of sanity, I should just settle on a handful of sights.
        The cyborg hero of the new Robocop flick is subjected to the downloading into his brain of the entire database of criminal records. The scientists have to lower his dopamine level in order to allow him to cope with the knowledge.

        Reply
  2. Wouldn’t you think that we (In NM) would have lots of newspaper and radio/tv blasts about saving water, etc??? Nope. Not so. So dang odd to live in such a clueless State. Lived here since ’75. Love it but ready to leave it. Ready for the great migration.

    Reply
    • I hear you Lanikk. I will feel really, really guilty when I finish that paper I promised you. The meme will cause all sorts of disruptions and I’m not certain it will be helpful. That said, if I were living in NM, I’d be getting ready to go too. So here I am…

      Reply
  3. Robert, with the drought in the west, we are entering a period when not only NM and AZ will face higher fire danger but CA and much of the Rockies as well, It seems the US Forest service is already considering the fire season started where ever the is not heavy precip that is fallen.

    I blogged on this a couple of days ago.:

    http://a4rglobalmethanetracking.blogspot.com/2014/02/us-drought-impacts-water-security.html

    Reply
  1. For Arizona and New Mexico, Climate Change and a Mangled Jet Stream Means Fire Season Now Starts in February | GarryRogers Conservation and Science Fiction: #EcoSciFi
  2. Sea Ice Loss, Human Warming Places Earth Under Ongoing Fire of Severe Weather Events Through Early 2014, Likelihood of Extremes For Some Regions Increases by 500% | robertscribbler

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