Air Pressure History (Electronic Barometer With Barometric Pressure Trend) - La Crosse Technology Weather Station Instruction Manual

Once the weather tendency indicator has registered a change in air pressure, it will remain permanently visualized on
the LCD.

AIR PRESSURE HISTORY (ELECTRONIC BAROMETER WITH BAROMETRIC PRESSURE TREND)

The third section of the LCD also shows the relative air pressure value and the air pressure history.
Air pressure over the last 24 hours
The bar chart indicates the air pressure history trend over the last 24 hours in 7 steps, 0h, -3h, -6h, -9h, -12h, -18h, and
-24h. The "0h" represents the current full hour air pressure recording. The columns represent the "hPa" (0, ±2, ±4, ±6)
at specific time. The "0" in the middle of this scale is equal to the current pressure and each change (±2, ±4, ±6)
represents how high or low in "hPa" the past pressure was compared to the current pressure.
If the bars are rising it means that the weather is getting better due to the increase of air pressure. If the bars go down,
it means the air pressure has dropped and the weather is expected to get worse from the present time "0h".
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