The trace of weather data from LSC for Wed. Feb 5, 2008 indicates rising pressures and falling temperatures. As of 10:30 PM, the temperature is already -3 F, colder than the overnight low of 2 F the previous morning. The pressure trace shows a rise in pressure to about 1015 mb currently from about 10 mb from 1005 mb at midnite the previous evening. (Note however that the pressure values are low compared to other stations, indicating possible problems with the barometer). In the bottom panel, sustained winds (blue) and gusts (purple) become calmer and calmer as the high pressure moves in.
Wednesday, February 4, 2009
Cold air and high pressure
The trace of weather data from LSC for Wed. Feb 5, 2008 indicates rising pressures and falling temperatures. As of 10:30 PM, the temperature is already -3 F, colder than the overnight low of 2 F the previous morning. The pressure trace shows a rise in pressure to about 1015 mb currently from about 10 mb from 1005 mb at midnite the previous evening. (Note however that the pressure values are low compared to other stations, indicating possible problems with the barometer). In the bottom panel, sustained winds (blue) and gusts (purple) become calmer and calmer as the high pressure moves in.
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