Book 99 Brush Fire Operations Flashcards
Book 99 Brush Fire Operations -
The fire shelter is made of aluminum foil bonded to a fiberglass cloth with a nontoxic, high temperature adhesive.
Reference
Book 99 Brush Fire Operations -
The foil will reflect 95 percent of a flame front’s radiant heat. The remaining five percent is absorbed by the shelter. The inside the shelter will increase gradually. With prolonged exposure, temperatures can exceed 150* F. Humans can survive these temperatures - - dry saunas often reach 190* F. Stay calm and stay in the shelter.
Reference
Book 99 Brush Fire Operations -
Deployment sites should be free of fuels. Begin scraping away what fuels there are. Clear an area _ by _ feet (larger, time permitting) down to mineral soil. A clear area will minimize flame contact with the shelter and the chances of fuels smoldering nearby or underneath the shelter.
4 by 8 feet
Book 99 Brush Fire Operations -
Our fuels can be classified in three basic categories:
- Grasses and weeds (Light Fuels)
- Coastal sage scrub (Moderate Fuels)
- Mixed chaparral (Heavy Fuels)
Book 99 Brush Fire Operations -
Strong winds = Rapid fire spread, spot fires likely, and eddies must be considered.
Stable air = Predictable fire behavior; stable air can be recognized by poor visibility at low levels (smog, fog), stratus-type clouds, steady winds, and smoke columns that drift apart after limited rise.
Unstable air = Danger in the form of unpredictable fire behavior, fire whirlwinds, etc. Unstable air can be identified by vertically-developing cumulus clouds, tall smoke columns, dust devils, clear air, and gusty winds.
reference
Book 99 Brush Fire Operations -
The Brush Clearance Program is administrated by the Brush Clearance Unit of the Fire Prevention Bureau. Each year, on April 1st, an information letter is mass-mailed to the owners of property in the Mountain Fire District and the Mount Washington. The letter explains the City’s brush clearance requirements, the responsibility of the property owner to maintain their property in a safe condition, and asks property owners to clear the hazardous brush before May 1st.
Reference
Book 99 Brush Fire Operations -
Fix wing air tankers are not effective and will not fly during periods of high winds.(__ MPH)
40+ MPH