The relative frequency of cumulonimbus clouds at the Nevada test site as a function of K-value

"The K-value is a familiar index used as a guide for predicting the occurrence of thunderstorms in the conterminous United States and has become established as an initial state and predicted parameter in the teletype and facsimile products of the National Meteorological Center. DaiIy K-values were generated from the Yucca RAOBs as a cumulonimbus predictor for the Nevada Test Site (NTS). The K-values from this developmental data set were used to derive a probabilistic prediction curve in order to have a forecast suitable for comparison with another routinely used index (i .e., Randerson Z-index [IJ) forecast. The purpose of this report is to share this adaptation of the K-value to the NTS with Western Region meteorologists"--Introduction. R.F. Quiring. Includes bibliographical references (page 3). 1977 NWS (National Weather Service) WR (Western Region) Library Public Domain 1931