Explain the reading

Nice app but...........Why dont you explain the reading within the app so you can see this info below the reading. With this info it would be a 5 star app.

Barometric Reading
- Forecast
Over 30.20"
Rising or steady
- Continued fair
Slowing falling
- Fair
Rapidly falling
- Cloudy, Warmer

29.80" to 30.20"
Rising or steady
- Same as present
Slowing falling
- Little change
Rapidly falling
- Precipitation likely

Under 29.80"
Rising or steady
- Clearing, cooler
Slowing falling
- Precipitation
Rapid falling
- Storm

Im lost without a city about a Barometer for iPhone & iTouch