Register: Code Table D-10: Significant Weather Phenomena
stable
URI: http://codes.wmo.int/49-2/SigWxPhenomena
The items within this code table are the types of weather phenomena of significance to aeronautical operations – as used in SIGMET and AIRMET reports and specified in Technical Regulations, Volume II (WMO-No. 49), Part II, Appendix 6, [C.3.1.] 1.1.4.
Contents
| Notation | Name | Description | Status |
|---|---|---|---|
| EMBD_TS | Embedded thunderstorm | stable | |
| EMBD_TSGR | Embedded thunderstorm with hail | stable | |
| FRQ_TS | Frequent thunderstorm | stable | |
| FRQ_TSGR | Frequent thunderstorm with hail | stable | |
| HVY_DS | Heavy dust storm | stable | |
| HVY_SS | Heavy sand storm | stable | |
| OBSC_TS | Obscured thunderstorm | stable | |
| OBSC_TSGR | Obscured thunderstorm with hail | stable | |
| RDOACT_CLD | Radioactive cloud | stable | |
| SEV_ICE | Severe airframe icing | stable | |
| SEV_ICE_FZRA | Severe airframe icing from freezing rain | stable | |
| SEV_MTW | Severe mountain wave | stable | |
| SEV_TURB | Severe turbulence | stable | |
| SQL_TS | Squall line | stable | |
| SQL_TSGR | Squall line with hail | stable | |
| TC | Tropical cyclone | stable | |
| VA | Volcanic ash | stable |