Various methods are available for receiving TRS or gale warning forecast.
VHF weather forecast from coast radio station. |
MF-HF radio telephony weather broadcast from met stations. |
MF-HF telex from met stations. |
MF-HF weather fax from met stations. |
EGC messages. |
Navtex. |
Inm-B fax from met stations (paid service). |
Visual observation, by barometric pressure and wind force. |
Pressure below mean | Wind force (Beaufort scale) | Bearing of center from wind direction | Approximate distance |
5mb | > 6 | 12 Points | Within 200nm |
10mb | > 8 | 10 Points | Within 125nm |
20mb | About 12 | 8 Points | Within 75nm |