Smoke Impact Codes

Code Description
1 No Visual Impairment
Slight Odor of Smoke
2 Visible smoke present
Odor may or may not be present
3 Visible smoke with some visual impairment
Visibility greater than 500 feet
4 Visual impairment
Visibility 500 feet or less intermittently (for periods of one to two minutes)
5 Heavy smoke
Poor visibility
steadily 100 to 500 feet
6 Heavy smoke
Visibility less than 100 feet
7 Very heavy smoke
No Visibility