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