PSA 4/23/2026: Using the 5-3-1 Visibility Method During a Fire
- asalas843
- 46 minutes ago
- 1 min read
The Las Vegas Fire Department wants to share an important reminder about protecting your health during wildfire season.
Wildfires can quickly fill the air with smoke, ash, and harmful particles—even miles away from the flames. When official air quality updates aren’t immediately available, the 5-3-1 Visibility Method can help you make quick safety decisions.
Check your visibility:
5 miles or more (clear view):Air quality is likely fair, but smoke can still shift quickly. Stay alert.
3–5 miles (light haze):Air quality is moderate. Smoke is present—limit long outdoor activities, especially for children, older adults, and people with breathing conditions.
1–3 miles (noticeable smoke, reduced clarity):Air quality is unhealthy for sensitive groups. Reduce time outside. Avoid exercise outdoors.
Less than 1 mile (heavy smoke, hard to see far):Air quality is unhealthy to hazardous.Stay indoors. Close all windows and doors. Use air filtration if possible.
During wildfire smoke events:
If you smell strong smoke or see ash falling, take precautions immediately—even if visibility seems okay
Use a properly fitted N95 mask if you must go outside
Keep indoor air as clean as possible (recirculate AC, avoid burning candles or cooking that adds smoke)
Check official alerts when available for evacuation or health guidance
See the attached map to estimate distances to familiar landmarks in your area and apply the 5-3-1 method more accurately. https://nmtracking.doh.nm.gov/WildFireSmoke/
In New Mexico, wildfire smoke can travel far and change rapidly with the wind. If the view disappears, it’s a warning sign—protect yourself and your family. If you can’t see it clearly, don’t breathe it deeply.