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00000176-d8fc-dce8-adff-faff71c90000Idaho's wildfire season is here, and that means you're going to be hearing a lot of firefighting jargon to describe what's going on.We put together this list of key firefighting terms you're likely to hear in the next few months.GlossaryHotshots: A highly trained hand crew of wildland firefighters that works on the ground to contain a blaze. Crews usually operate in 20-person teams, and are sent in first to deal with the worst fire conditions on short notice. Hotshots have a high level of physical fitness. They can carry up to 50 pounds along with a chainsaw and shovel. There are more than 100 hotshot crews around the country, and the National Interagency Fire Center in Boise coordinates the crews.Hand crew: Wildland firefighters that could have different levels of training. They work on the ground with hand tools like shovels, chainsaws and axes. They dig fire lines (also called "firebreaks") to try and get the fire under control.Smokejumper: An elite firefighter that parachutes into remote wildland fires. They work to suppress and put out fires before they become a bigger problem, and can adapt to quickly changing situations. Smokejumpers have to be fit and highly trained. They carry heavy packs and protective suits and work in mountainous terrain. Idaho has three smokejumping bases in Boise, McCall and Grangeville.Fire lines or firebreaks: Usually about 10-12 feet wide, fire lines are cut with shovels and axes to contain and suppress a blaze. Hand crews -- including hotshots -- will dig lines and clear out brush so the fire will get choked off without fuel.Containment levels: The agency that manages a fire will say how "contained" a fire is. At 100 percent containment a fire isn't out. That means a complete fire line has been dug around the fire. A contained fire can quickly become out of control again with a shift in weather.Controlled fire: This is when a wildfire is considered out. Here's how the BLM office in Idaho Falls describes it: "Think of a container -- say, a mason jar. A fire is contained when it's all 'bottled in,' like in a container. The fire may still be burning, but if a distinct fire line is built around the entire perimeter so that there is no chance for the fire to escape or spot over outside the line, then the fire fighters declare the fire 'contained.' "Human caused: This means someone accidentally or intentionally caused a fire. This could be from a discarded cigarette, a embers from a campfire, or even sparks from a truck along a forested highway. As Smokey says, nine times out of 10, a wildfire is human-caused.Fire danger: This is a rating system from the U.S. Forest Service that helps predict how likely a wildfire could start in an area. It takes into account the weather forecast, terrain and personnel. "Low" means a blaze would likely not spread, while "moderate" means a fire could start but could be contained. "High" to "very high" means fires can catch and spread easily, while "extreme" means the conditions are so difficult and fast-changing that fighting the blaze directly is rare.Red flag warning: These warning are issued by regional National Weather Service offices, and help firefighting management teams understand the weather-related risks for fire starts. Drought and low humidity mixed with windy conditions usually spell a red flag warning. Burning bans sometimes come along with these warnings.Complex: Two or more larger wildfires in the same general area. A complex is managed by a unified team of firefighters.Air attack: Usually used during the initial stages of a small blaze, or as a suppression tool during large fires. Air attacks can drop fire retardant or water to help support hand and engine crews. Multi-engine or heavy air tankers, single-engine air tankers, and helicopters are the three most common types of aircraft that can be used. Multi-engine tankers carry the most retardant, while helicopters (or helitankers) can make more precise but smaller drops.Fire retardant: Also known as slurry, these USDA-approved chemicals are dropped by aircraft over wildfires that management teams believe could grow and become dangerous. It's often used to protect private property. A 2010 ruling from the U.S. District Court in Montana raised questions about its environmental effects.Incident management teams: Operating from level one through five, these teams of firefighters can be sent around the country to suppress fires. Type 1 and 2 IMT's often work on the most difficult and dangerous fires, and can include local firefighting resources.ResourcesWe also pulled together these key resources where you can find up-to-date information about wildfires.The National Interagency Fire Center coordinates fire management teams around the country, and is based in Boise. This year, NIFC predicted a higher level of fire danger in Idaho forests, while the grassland should get a bit of a break.The Bureau of Land Management's site will update Idahoans about fire restrictions on public land.InciWeb updates fire information around the country, giving handy info about road closures during the summer travel season. You'll also find maps, photos, and growth potential for a particular fire.And if you tweet, consider following these organizations and agencies for fire updates in 140 characters.

Scientists Use Computer Models To Help Blaine County Residents After Beaver Creek Fire

Wildfires, Maps
Courtesy of the Idaho Water Science Center
/
USGS

The Beaver Creek wildfire burned 174-square-miles in August and threatened Ketchum and Hailey. After the fire, torrential rains sent mud and rocks down burned mountainsides. Debris hit homes and covered roads.

“Some of these debris flows were 20 to 30 feet thick,” recalls Dave Evetts. He’s the assistant director for hydrologic data at the U.S. Geological Survey’s Idaho Water Science Center in Boise.

Evetts and USGS hydrologist Ken Skinner sit in a conference room looking at computer generated maps that show where the Beaver Creek fire burned. Skinner assessed the potential for future slides in areas that burned this summer and created these maps using computer modeling.  

Skinner says modeling efforts have been conducted on several wildfires mainly in California, Colorado, Arizona and New Mexico.

"This is the first modeling effort done on an Idaho fire," he says.

It takes up to a month to create these models although Skinner and Evetts were slowed down by the 16-day federal government shutdown.

USGS, Hydrologists
Credit Sadie Babits / Boise State Public Radio
Dave Evetts (left) and Ken Skinner (right) have been working to predict where mud and rock slides could happen in Blaine County after the Beaver Creek fire this summer.

Skinner's maps find that areas such as Deer Creek and Greenhorn Gulch are at risk for debris flows when the rains return next year.  

The fire heavily burned in Greenhorn Gulch between Hailey and Ketchum leaving the hillsides bare. Heavy rains this fall sent mud and rock slides down into the gulch. 

“Your danger for these debris flows is still there for up to three years after the burn,” explains Skinner.

That’s the amount of time it usually takes for grasses, trees and other vegetation to get rooted in the soil. So the Skinner’s computer modeling is good for three years.  

Evetts and others have used Skinner’s maps to figure out where to install six precipitation gauges in the spring. Too much water would tip a bucket on the gauge, which would then trigger an alarm and then data would begin to transmit information to agencies like the National Weather Service.

The precipitation network will cost more than $48,000 to install and maintain.  Blaine County's Bureau of Homeland Security and the USGS will share the cost.

Evetts says the gauges will go in each spring and be removed each fall before the snows come for the next year.

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