Forecast Icons Inaccurate; Forecast Arrows; Clothing Index; Absolute Barometric Pressure - La Crosse Technology 308-1451v2 Instructions Manual

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 When alarm 1 or alarm 2 sounds, press the SNOOZE/LIGHT button once to activate the snooze
feature for 10 minutes.
and the snooze icon Zz will flash when the snooze is active.
 The alarm icon
 Press any button to deactivate the snooze feature.

Forecast Icons Inaccurate

 Weather Forecast Icons: (Sun, Slightly Cloudy, Cloudy, Rainy, or Snow).
These icons forecast the weather in the next 12-24 hours. The forecast icons displayed, predict the
weather in terms of getting better or worse and not necessarily sunny or rainy as each icon indicates.
Note: After set up, disregard readings for weather forecasts for the next 48-60 hours. This will allow
sufficient time for the forecast station to collect air pressure data at a constant altitude and therefore
result in a more accurate forecast.

Forecast Arrows

 WEATHER TENDENCY INDICATOR (Up or Down arrows):
Working together with the weather icons is the Weather Tendency Indicators. When the Indicator
Points Upwards, it means that the Air-pressure is increasing and the weather is expected to improve,
but when Indicator Points Downwards, the Air-pressure is falling and the weather is expected to
become worse.

Clothing Index

 Fisherman: The Fisherman Clothing Icon combinations display based on Outdoor Temperature from
the transmitter on channel 1 only. The Fisherman represents CURRENT TRENDS in Temperature.

Absolute Barometric Pressure

 The forecast station reads Barometric Pressure.
 The numeric pressure value adjusts automatically as the forecast station reads changes in air
pressure.
 Since this number is absolute pressure it may not be the same as a local reporting Station that reads
in relative pressure.
Note: The pressure number cannot be calibrated.
 Absolute Pressure is measured in a vacuum without the influences of terrain, weather, water, foliage
and elevation. The air pressure it would be consistent at every elevation and decrease as it went
higher.
 Relative Pressure is a combination of air pressure and altitude. Relative air pressure will make
readings in local areas relative to each other to allow for proper forecasting.

Absolute Pressure Unit of Measure

Hold the HISTORY button for 5 seconds to switch from InHg (inches or mercury) or hPa (Hectopascal) for
the numeric pressure display and the pressure graph.
 Inches of Mercury is common for weather reports and aviation in the United States.
 Hectopascal is equivalent to millibar and commonly used to measure atmospheric pressure outside
the United States.

Pressure History

Numeric History:
Press and release the HISTORY button to view the past 12-hours of numeric pressure history.
 In the small box to the right of the numeric pressure a number from 0 to -12 will appear.
 0 is current pressure. -1 through -12 reflects the history in one-hour increments.
Note: The history graph and forecast icons will not change when you view pressure history.
12-hour Pressure History Graph
La Crosse Technology, Ltd.
Page 11

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