Cluster Of Soundings With Superadiabatic Layers Aloft

Just a reminder that the problems with the RRS sondes have not gone away. There are a number of eastern US soundings this evening with superadiabatic layers aloft, at the top of a moist layer. The sounding from IAD is shown above. Soundings with similar problems were taken at PIT, RNK, GSO, MHK, and even at WAL. I'm not sure what sonde is being flown at WAL, but it too suffered from a wetted temperature sensor and subsequent evaporative cooling..