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
| Name | Notation | Description | Types | Status |
|---|---|---|---|---|
| Embedded thunderstorm | EMBD_TS | Concept | stable | |
| Embedded thunderstorm with hail | EMBD_TSGR | Concept | stable | |
| Frequent thunderstorm | FRQ_TS | Concept | stable | |
| Frequent thunderstorm with hail | FRQ_TSGR | Concept | stable | |
| Heavy dust storm | HVY_DS | Concept | stable | |
| Heavy sand storm | HVY_SS | Concept | stable | |
| Obscured thunderstorm | OBSC_TS | Concept | stable | |
| Obscured thunderstorm with hail | OBSC_TSGR | Concept | stable | |
| Radioactive cloud | RDOACT_CLD | Concept | stable | |
| Severe airframe icing | SEV_ICE | Concept | stable | |
| Severe airframe icing from freezing rain | SEV_ICE_FZRA | Concept | stable | |
| Severe mountain wave | SEV_MTW | Concept | stable | |
| Severe turbulence | SEV_TURB | Concept | stable | |
| Squall line | SQL_TS | Concept | stable | |
| Squall line with hail | SQL_TSGR | Concept | stable | |
| Tropical cyclone | TC | Concept | stable | |
| Volcanic ash | VA | Concept | stable |