6:30 FFH Room 210 informational seminar on the topic of fire. Specifically, wildfires and the Dude Fire occurring in Payson, Arizona.
Photo taken by me
Photo taken by me
Shirley's presentation, a hard hitting one, explored the abiotic and topographic influences on wildfires. Shirley also described the tragic deaths of 6 firefighters in 2010 in her region of training. To begin her presentation Shirley defined wildfires and immediately displayed pictures of succession after a wildfire. For photo on the left she said this, "This is your happy succession. Your roots aren't completely scorched into the ground, this is (the purple flower) Fireweed." We learned a common outcome after wildfires is moonscapes. This is where the roots are completely burned and no life will return to this patch for many years as Shirley said. The next area of Shirley's presentation is the way we fight fires. She went through and listed all the different crews and their equipment, examples being, hand crews, shot crews, Helitack crews, smokejumpers, engine crews, fuel crews, and the flying and dozing crews. Shirley broke down the certain tasks of these highly skilled crews, and even their level of "radness".
In the next part of her presentation, Shirley moved to the role of weather and the weather statistics of the Forest Service's 3rd Region during the Dude Fire in 2010. The 3rd Region, being the Southwest part of the US, consists of mainly Arizona and New Mexico. According to Shirleys anecdote this topic is, "kinda a vibe." Referring to her data on precipitation of that region she said this, "Where Payson is you get a little more annual precip. (precipitation), you are getting into the high desert there." Additional, this region is always in a drought and this year the drought is particularly extreme, Shirley highlighted. The average annual temperature of Arizona was 45.7°F to 76.1° F. Upon showing off pictures of Arizonas gorgeous landscape, Shirley added this remark, "Just so you get a view that Arizona isn't just Cacti, I learned that when I went there." Before moving on to the full story of the events of the Dude Fire, Shirley displayed key terms in evaluating the factors of a wildfire. These include, Synoptic viewing, convection columns, microburst thunderstorms, and the mesoscale which correlates to thermal pushes.
Photo taken by me
Photo taken by me
Photo taken by me
Photo taken by me
Diving deep into the stories of the 6 unfortunate deaths that occurred during the fight of the Dude Fire, we learned about the weather and conditions during this battle. June of 1990 was one of the hottest months in Arizona history, for a normal high of 76 degrees to change to a high 106 degrees in Payson is notable. On June 25th, a thunderstorms occurred mid day. Quickly, a fire was burning 800 hectares or 2000 acres. Strong direct, down-sloped wind fueled the fire even more. A topographic rim was causing heat and moisture to be pushed upwards along the wall of the rim and canyon during the day. An important fact to recall is the fire began producing its own thermal energy, which is a harrowing sign. The convection column hit the atmosphere, and because the atmosphere is colder, it pushed the smoke back towards the ground; this is called "iced out". The affect of this phenomena is explained by Shirley, "when it collapses (the convection column) it creates super high winds, going in basically every direction. In this case, it couldn't go past the rim, so it ended up going right down into Walk Moore which is where the Perryville crew was." Through these awful conditions and bad communication, a crew was forced into their fire shelters and 6 sadly perished in the canyon.
The night of learning started off with me rushing to Shirley's table to make sure I was not missing anything of importance. Shirley did a nice job of offering real firefighting equipment for viewing prior to the presentation. When the presentation began, Shirley was speak a tad dry and timid, but when she got comfortable the experience felt less forced. By getting familiar with wildfires and the effects in can have on the land, we then got to pivot to important natural factors or fires and even how to fight them. This presentation consisted of specific case study, the awful events of the Dude fire in 2010. Weather conditions and the region of the study were evaluated and cited multiple times. Leaving the room was a sense of sadness for the story of the 6 deaths, but also a feeling of alarm for the future of our environment.
I thought Shirley did a great job of presenting. She was very knowledgable on her subject and described terms well. However at times, Shirley would leave, what seemed to be key terms, unexplained. Comprehensible graphs and data table were included. Weather factors and geographical factors were all mentioned and accounted for. Her presentation did not tie back to the concepts we encounter this fall as much as I expected, but maybe I'll see areas of her presentation in our topics in the winter term. The classroom was a tiny bit smushed with all three blocks of APES but we made it work. Now I have all these photos and videos of her presentation to look back on.
Photo taken by me