Examples of significant weather phenomena:<br /></p><p><ul><li>Obscured thunderstorm (OBSC_TS)</li><br /></p><p><li>Obscured thunderstorm with hail (OBSC_TSGR)</li><br /></p><p><li>Embedded thunderstorm (EMBD_TS)</li><br /></p><p><li>Embedded thunderstorm with hail (EMBD_TSGR)</li><br /></p><p><li>Frequent thunderstorm (FRQ_TS)</li><br /></p><p><li>Frequent thunderstorm with hail (FRQ_TSGR)</li><br /></p><p><li>Squall line (SQL_TS)</li><br /></p><p><li>Squall line with hail (SQL_TSGR)</li><br /></p><p><li>Tropical cyclone (TC)</li><br /></p><p><li>Severe turbulence (SEV_TURB)</li><br /></p><p><li>Severe airframe icing (SEV_ICE)</li><br /></p><p><li>Severe airframe icing from freezing rain (SEV_ICE_FZRA)</li><br /></p><p><li>Severe mountain wave (SEV_MTW)</li><br /></p><p><li>Heavy dust storm (HVY_DS)</li><br /></p><p><li>Heavy sand storm (HVY_SS)</li><br /></p><p><li>Volcanic ash (VA)</li><br /></p><p><li>Radioactive cloud (RDOACT_CLD)</li><br /></p><p></ul><br /></p>