What is the typical range for Transport Winds?

What is the typical range for Transport Winds?

• A. 9-20 mph
• B. 1-3 mph
• C. Light and variable
• D. 15-25 mph

Answer: (A)

Transport winds are the winds at the height of the smoke plume that move the smoke and any embers away from the burn area. In a well-planned prescribed fire, you want enough wind to carry the plume downwind so the smoke doesn’t linger over sensitive areas, but not so much wind that the fire becomes hard to control or embers blow far and cause spotting. The typical range is 9-20 mph because it provides a balance: it’s strong enough to effectively transport smoke and embers away from the burn site, helping with air quality and visibility, yet not so strong that it makes ignition, containment lines, or suppression much more difficult. Winds that are too light (1-3 mph or light and variable) won’t move the smoke reliably and can cause smoke to linger or drift unpredictably. Winds that are too strong (15-25 mph) raise the risk of rapid fire spread, difficult control, and spotting.

Transport winds are the winds at the height of the smoke plume that move the smoke and any embers away from the burn area. In a well-planned prescribed fire, you want enough wind to carry the plume downwind so the smoke doesn’t linger over sensitive areas, but not so much wind that the fire becomes hard to control or embers blow far and cause spotting.

The typical range is 9-20 mph because it provides a balance: it’s strong enough to effectively transport smoke and embers away from the burn site, helping with air quality and visibility, yet not so strong that it makes ignition, containment lines, or suppression much more difficult. Winds that are too light (1-3 mph or light and variable) won’t move the smoke reliably and can cause smoke to linger or drift unpredictably. Winds that are too strong (15-25 mph) raise the risk of rapid fire spread, difficult control, and spotting.