What is the effect of higher line intensity on suppression operations?

• A. It reduces the need for lookout points.
• B. It only affects the color of smoke.
• C. Higher line intensity increases hazard and complicates suppression.
• D. It makes mop-up unnecessary.

Answer: (C)

Higher line intensity means the fire edge is hotter with longer flame lengths, more radiant heat, and a greater potential for spotting. This raises the hazards for crews along the line and makes suppression work harder because flames can threaten the line, ignite fuels ahead of it, and make direct attack riskier. As a result, lookout points and close coordination become more important to detect new fires early and keep crews safe, and mop-up becomes more time-consuming because hot spots and hidden pockets of burning material require longer cooling and patrol. The effect isn’t limited to smoke color, and mop-up remains a necessary step; high intensity simply compounds the risk and effort involved in suppression.