El Nino Watch
The nearest tropical cyclone reported by GDACS or NASA EONET.
Koh Samui watch
Distance from home to each active cyclone's last reported position.
Limits. The last reported position is used, not the forecast track. Check the TMD for the official track.
None within 800 km: ok. Any cyclone within 800 km: caution. Within 300 km, or an orange/red GDACS alert within 800 km: blocked. Feeds not received recently: unknown. A cyclone signal also marks the first 3 days of the departure windows.
Cyclones reach Samui rarely but hard (Harriet 1962, Gay 1989, Pabuk 2019), mostly October-January. The sea closes before the storm arrives, so the time to leave is while it is still far away.