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Old 06-21-2014, 08:24 PM   #4
capewx
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Default Barometric Pressure Forecast accuracy

Due to constant weather changes Barometric Pressure Forecasts have very limited short term accuracy with decreasing accuracy the longer the time frame you go out. Its almost impossible to tell exactly what the pressure will read at a certain time on a certain day. The forecast tendency may be close for short duration time periods, but to say a week from now at 3 pm the pressure will be at 30.30 (example) is impossible.
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