Data and trust
MODIS Aqua cloud product (about 1:30 pm pass).
Limits. One snapshot a day; the Himawari infrared layer is the live view.
How to read it
Kelvin, 150-350 K: below 220-230 K (about -50 degC) = tall thunderstorm towers.
Why it matters for Koh Samui
El Nino shifts deep thunderstorms from SE Asia toward the central Pacific.
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)