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Wildland Fire S-190, Introduction to Wildland
Fire Behavior
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• that portion of a fire spreading directly into the wind or
down slope
• that portion of a fire edge opposite the head
• slowest spreading portion of a fire edge. Also called
heel of a fire
Choose matching term
the most critical weather element affecting
wildland fire behavior, the most difficult to
1 fingers of a fire 2
predict, and the most variable in both time
and location is
3 rear of a fire 4 point of origin
Don't know?
point of origin, head, flank, rear, perimeter, fingers, pockets,
parts of a fire
island, spot fire
, the start
the precise location where a competent ignition source came
point of origin into contact with the material first ignited and sustained
combustion occurred
usually rear & upwind
the side of fire having the fastest rate of speed
head of a fire most intensity
downwind
the part of a fire's perimeter that is roughly parallel to the main
direction of spread
flank of a fire
lower flame, greatest variability
where most fire is fought
• that portion of a fire spreading directly into the wind or
down slope
rear of a fire • that portion of a fire edge opposite the head
• slowest spreading portion of a fire edge. Also called
heel of a fire
fire perimeter the entire outer edge or boundary of a fire
the long narrow extensions of a fire projecting from the main
fingers of a fire body
from shifting of winds
unburned indentations in the fire edge formed by fingers or slow
pockets of a fire
burning areas
or long ribbons
safety hazard
island
area of unburned fuel or just got a surface burn inside the fire
perimeter
fire ignited outside the perimeter of the main fire by a firebrand
spot fire
raining embers
smoldering, creeping, running, spotting, torching, crown, flare
fire behavior terms
up, firewhirl, backing, flaming front,
smoldering fire fire burning without flame and barely spreading
fire burning with a low flame and spreading slowly; timber litter
creeping fire
or short grass
running fire fire spreading rapidly with a well defined head
behavior of a fire producing sparks or embers that are carried by
spotting fire the wind and which start new fires beyond the zone of direct
ignition by the main fire; snags produce column of air
the burning of the foliage of a single tree or a small group of
torching fire
trees, from the bottom up
a fire that advances from top to top of trees or shrubs more or
less independent of a surface fire. crown fires are sometimes
crown fire classed as running or dependent to distinguish the degree of
independence from the surface fire; mostly in pine, spruce,
gamble oak
any sudden acceleration in the rate of spread or intensification of
flare up the fire. unlike blowup, a flare-up is of relativity short duration
and does not change existing control plans
Wildland Fire S-190, Introduction to Wildland
Fire Behavior
Save
Students also studied
Flashcard sets Study guides
2425 EMT Sem 1 Final Exam EMT Medical Exam Mississippi Category
136 terms 50 terms 60 terms
finn_summar Preview maddie_borgman Preview Brian_Kamau9
Stretch your brain before your first study session
Learn 1 /7 Study with Learn
• that portion of a fire spreading directly into the wind or
down slope
• that portion of a fire edge opposite the head
• slowest spreading portion of a fire edge. Also called
heel of a fire
Choose matching term
the most critical weather element affecting
wildland fire behavior, the most difficult to
1 fingers of a fire 2
predict, and the most variable in both time
and location is
3 rear of a fire 4 point of origin
Don't know?
point of origin, head, flank, rear, perimeter, fingers, pockets,
parts of a fire
island, spot fire
, the start
the precise location where a competent ignition source came
point of origin into contact with the material first ignited and sustained
combustion occurred
usually rear & upwind
the side of fire having the fastest rate of speed
head of a fire most intensity
downwind
the part of a fire's perimeter that is roughly parallel to the main
direction of spread
flank of a fire
lower flame, greatest variability
where most fire is fought
• that portion of a fire spreading directly into the wind or
down slope
rear of a fire • that portion of a fire edge opposite the head
• slowest spreading portion of a fire edge. Also called
heel of a fire
fire perimeter the entire outer edge or boundary of a fire
the long narrow extensions of a fire projecting from the main
fingers of a fire body
from shifting of winds
unburned indentations in the fire edge formed by fingers or slow
pockets of a fire
burning areas
or long ribbons
safety hazard
island
area of unburned fuel or just got a surface burn inside the fire
perimeter
fire ignited outside the perimeter of the main fire by a firebrand
spot fire
raining embers
smoldering, creeping, running, spotting, torching, crown, flare
fire behavior terms
up, firewhirl, backing, flaming front,
smoldering fire fire burning without flame and barely spreading
fire burning with a low flame and spreading slowly; timber litter
creeping fire
or short grass
running fire fire spreading rapidly with a well defined head
behavior of a fire producing sparks or embers that are carried by
spotting fire the wind and which start new fires beyond the zone of direct
ignition by the main fire; snags produce column of air
the burning of the foliage of a single tree or a small group of
torching fire
trees, from the bottom up
a fire that advances from top to top of trees or shrubs more or
less independent of a surface fire. crown fires are sometimes
crown fire classed as running or dependent to distinguish the degree of
independence from the surface fire; mostly in pine, spruce,
gamble oak
any sudden acceleration in the rate of spread or intensification of
flare up the fire. unlike blowup, a flare-up is of relativity short duration
and does not change existing control plans
