SGP/EBBR/E26 - Wind Direction Sensor Failure

Apparently, a fairly severe thunderstorm passed over the Cement, OK EBBR
early on May 25, 1994 (around midnight May 24, local time).  The storm
damaged the wind direction sensor and the wind speed sensor.  Wind
Direction and Sigma of Wind Direction data for the period listed 
should be considered incorrect.  The sensors were replaced on May 25, 1994
at 1631.  Old sensor S/N K3038, New sensor S/N K3040.

• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)

• Wind direction vector mean (mV)(wdir_vec_mean_mv)

• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean standard deviation(wdir_vec_std)