Are Fire Shelters Always Necessary?
This article (below) was written by Lisa Loncar, an Engine Operator in West Virginia. Lisa has some thoughts on how we view and use Fire Shelters. Lisa wrote down her thoughts and shared them with the Wildland Fire Lessons Learned Center so we could share them with our audience. This is the field speaking. This is the model for dialogue.
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We (Wildland Fire Lessons Learned Center) chose to include this recent video from the 2016 Canyon Fire as food for thought related to Lisa's piece. Please leave comments. [youtube https://www.youtube.com/watch?v=4yY-cFoIYfM&w=560&h=315 ] Be sure to read the report: Canyon Fire Entrapment
Are Fire Shelters Always Necessary?
And other thoughts and questions
By Lisa Loncar Supervisory Fire Engine Operator, White Sulfur Springs Ranger District, Monongahela National Forest, West Virginia Although the fire shelter has proved to be a useful and effective tool when used as intended, are there times when we can forego wearing one? Throughout my career I have spoken to many firefighters who have differing opinions about fire shelters. Generally, there are two camps: one feels we should definitely wear them, and the other feels we don’t need to ever wear them. Of course there are also “in-betweens,” folks who feel that wearing a fire shelter should be a personal choice, not a standard policy. I was on a fire in Virginia this past fall and had an opportunity to have a discussion with one of the Division Supervisors about this very topic. His feeling is one that falls in the middle. He thought it makes sense to wear fire shelters only when needed. For example (my example): If the fire is contained and it has started raining, will continue to rain for several days, but due to the large size of the fire we still need to get out on the line—can we ditch the ole’ shelter? I mainly work on an Engine. There are plenty of times I have (and witnessed many others who also have) walked into the black on a contained fire a chain+ from my truck without my fire line pack, let alone my shelter—albeit I always seem to throw on the brain bucket. I take this calculated risk based on experience. Yes, I know that one of the common denominators on tragedy fires is the mop-up phase. So I guess the question to ask is: Am I just being complacent or am I really using my fire behavior knowledge? I should probably also mention that on an active fire I rarely ever walk ten feet from my Engine without throwing on my pack and shelter. My Thoughts on Safety Zones I am briefly going to move to an important side topic: Safety Zones. I know there are some newer calculations for a safety zone right now, but I am going to bring up the one most of us know, which is loosely four times the size of the flame height in all four directions from our person. The math starts getting out of hand when you start adding up all of your crew and equipment. I’m more interested in the safety zone as it pertains to fire behavior than the actual dimensions. I believe that “true” safety zones are only relevant in surface fires with a particular flame height. I have not completed any scientific calculations; this is purely observation. What I mean here is, once a fire reaches the crown we cannot make safety zones large enough. Well, that’s not really true. We can; but we usually don’t. If you don’t like my logic, do some math. First, think about how many people are on one Division and all the equipment that goes with it, then do the calculation (use the function in Behave 5.0 if you hate math). You will learn just how large an area needs to be to be considered a “safety zone,” not a “deployment zone.” Now if you use the more current math, you might be even more alarmed. Also, we know that as we move along the line we need more than one safety zone. So I ask, how many acres are we really going to take out to create a safety zone? I should also mention that most of our safety zones are actually created when the fire is just a surface fire. Pros and Cons of Fire Shelters Okay, now back to fire shelters. This topic of fire shelter use has many pros and cons, and possesses many questions. Because I cannot conceive them all, I will only address a few here. A few of the questions I ask myself about fire shelters, in no particular order:- Can we be “trusted” to take our shelter on and off at the appropriate times? What are the appropriate times?
- Would we remember to put it back in our packs under times of stress?
- Are we willing to allow people to make their own choice? Can we really make our own choice? (Peer pressure not only exists but is alive and well—from the “newbie’s” up through the “old dogs.”) Given the aftermath of a fatality fire will our families be willing to accept our choice?
- Are fire shelters just a crutch at this point?
- Why don’t we pay attention to fire behavior and punt at a time we know we can’t catch it (yes we know this), instead of not only putting people in harm’s way, but allowing them to believe they can “catch it”?
We (Wildland Fire Lessons Learned Center) chose to include this recent video from the 2016 Canyon Fire as food for thought related to Lisa's piece. Please leave comments. [youtube https://www.youtube.com/watch?v=4yY-cFoIYfM&w=560&h=315 ] Be sure to read the report: Canyon Fire Entrapment
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