El Nino Watch

Situation briefing (rules vs AI-polished)

A plain-English summary of ENSO, the forecast, Koh Samui's level, nearby hazards and data gaps, rebuilt every 6 hours.

Data and trust

An automatic briefing assembled from the tracker's own stored data: the official ENSO status and indices with their dates, the forecast probabilities, the Koh Samui level and its main factors, hazards within 800 km plus major (GDACS orange/red) events worldwide, the 5 latest official bulletins, and which sources are failing or stale. It is rebuilt every 6 hours and immediately when the Koh Samui level changes.

Limits. It summarizes; it does not forecast on its own. If a source is stale or missing, the briefing is only as good as what remains; read the "Data gaps" section. The level "UNKNOWN" means data is insufficient, never "safe".

How to read it

  • method = rules: every sentence was built by fixed rules from stored values. No AI.
  • method = llm: the same facts were rewritten by an AI model (ComputeForge) for readability. The AI is told not to add anything, and its text is thrown away automatically if it contains any number that was not in the rules version.
  • `llm_error` explains why the AI version was not used (no key, error, refusal, or a rejected invented number). The rules version is then shown.
  • Every section lists its sources with links; dates are UTC.

Why it matters for Koh Samui

It is the fastest way to know "what changed and does it concern us", and it always states what it does not know (missing factors, stale sources) instead of implying all is well.

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)