2015 03 17 2200Z Radiosonde Launch Report

It was partly cloudy with patches of low level stratus. The wind was mild (around 5 mph) at the surface. The weather was fair in general. The radiosonde was launched at 22.00Z. The ascent rate was around 5 m/s. The boundary layer extended to around 780 mb only, then the atmosphere turned from neutral to stable. The atmosphere was quite stable overall. Winds below 600 mb were mild (from 2 to 12 m/s) and the directions varied quite a bit. Strong westerlies at more than 30 kts was observed above 600 mb. Note that in raw data the sonde started to fall (possibly due to balloon popped) at around 100 mb before I terminated the observation.  

Written by Joseph Lee, 18 March 2015