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The 15Z and 18Z soundings both had problems. For the 15Z sounding, Tyler (OU) reported a bad temperature sensor, and for the 18Z sounding Kate reported some kind of data lockup at 700mb - both soundings were relaunched. Replaced desiccant in ground check unit after 2317Z sounding.
Isabel left this morning to return home - thanks very much Isabel (her first field project!).