P3.5 A COMPARISON OF ATMOSPHERIC PROFILES USING A TWELVE CHANNEL MICROWAVE PROFILING RADIOMETER AND RADIOSONDES DURING LOW CEILING EVENTS

When considering ways to improve short-term forecasts of low ceiling and visibility (C&V) conditions, the availability of new technology providing frequently updated information about the thermodynamic state of the boundary layer and lower free atmosphere becomes of interest. Among the important parameters to consider when determining the likelihood of fog or a low ceiling forming are the evolving stability conditions and vertical distribution of moisture in the lower atmosphere. Once clouds have formed, the amount of cloud water and its vertical distribution are also important parameters.