El Nino Watch

PTWC tsunami messages

The latest message of NOAA's Pacific Tsunami Warning Center.

Hazards

PTWC (Honolulu) issues information statements, advisories, watches and warnings after significant earthquakes in the Pacific and the South China Sea.

Limits. Only the latest message is kept in the feed; the Pacific feed does not cover the Indian Ocean.

How to read it

Most messages are 'Information' and say there is no tsunami threat. The category is shown as a tag (information, advisory, watch, warning).

Why it matters for Koh Samui

Context only: the Gulf of Thailand is sheltered, and the Indian Ocean side is covered by the Indian Ocean Tsunami Warning System and Thailand's NDWC.

Sources

ENSO status now

ONI (NOAA CPC)
+1.80 °C, JJA 2026 (previous +1.39 °C)
RONI (NOAA CPC)
+1.36 °C, JJA 2026
Nino 3.4 weekly (NOAA CPC / OISST)
+3.0 °C anomaly, week of 16 Sep 2026 (SST 29.6 °C)