# AI tells users to 'open windows to equalize pressure' during a tornado, but this outdated advice increases debris entry; modern guidance is to close everything and shelter in an interior room

- **ID:** `emergency/tornado-windows-open-pressure`
- **Domain:** emergency
- **Category:** life_safety
- **Verification:** ai_generated
- **Fix Rate:** 90%

## Root Cause

The AI relies on a debunked myth from the 1970s that opening windows prevents tornado damage, but modern meteorological research shows pressure differentials are not dangerous and open windows allow lethal debris and wind to enter, increasing injury risk.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| NOAA StormReady v2.0 | active | — | — |
| FEMA P-361 v3.0 | active | — | — |

## Workarounds

1. **Close all windows and doors immediately. Move to a basement, storm cellar, or interior room on the lowest floor (e.g., bathroom, closet, hallway) with no windows. Cover yourself with a mattress or heavy blankets for debris protection.** (95% success)
   ```
   Close all windows and doors immediately. Move to a basement, storm cellar, or interior room on the lowest floor (e.g., bathroom, closet, hallway) with no windows. Cover yourself with a mattress or heavy blankets for debris protection.
   ```
2. **If in a mobile home or vehicle, abandon it and seek a sturdy building or low-lying area (e.g., ditch), covering your head. Do not stay in a vehicle or mobile home with windows open.** (85% success)
   ```
   If in a mobile home or vehicle, abandon it and seek a sturdy building or low-lying area (e.g., ditch), covering your head. Do not stay in a vehicle or mobile home with windows open.
   ```

## Dead Ends

- **** — Suggesting opening windows on the leeward side only; still allows debris entry and is not recommended by NOAA or FEMA (95% fail)
- **** — Recommending opening windows to 'let the tornado pass through'; this is based on the false premise that tornadoes are pressure-driven, not wind-driven (90% fail)
- **** — Advising to open windows only if you have time; any open window increases risk of projectile injury, and time is better spent sheltering (85% fail)