Wildland fire terms

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Across
  1. 5. the exact spot where a fire starts
  2. 7. where most fire tactics begin, slowest spreading portion of a fire
  3. 8. low flame length and spreading about 2-5 chains/hr
  4. 10. The percentage of water vapor present in the air compared to the maximum amount the air could hold at its current temperature
Down
  1. 1. the fire slowly backs against the wind
  2. 2. sides of a wildfire, Charlie and alpha
  3. 3. how hot of cold the air is
  4. 4. area where you don't want to get a bulldozer trapped at
  5. 6. a tactic used by a type 6 engine if you don't have enough hose and there is a water source near by
  6. 9. determines the direction and spread of a wildfire