With global ocean temperatures already breaking records, federal forecasters confirmed Tuesday that historical weather data will no longer be consulted when attempting to guess what the Pacific Ocean might do next.
The National Oceanic and Atmospheric Administration (NOAA) finalized a guidance update on Tuesday officially deprecating the 20th century as a useful reference point for the upcoming El Niño.
According to the agency's Climate Prediction Center, the analog forecasting method—which attempts to predict future weather by comparing current Pacific sea surface anomalies to historical events like the 1997 or 2015 El Niños—has been formally suspended. Forecasters noted that because anthropogenic warming has raised the global baseline temperature of the ocean to unprecedented levels, consulting past weather patterns is now functionally equivalent to consulting astrology.
We spent four decades calibrating a pristine, peer-reviewed dataset of Pacific sea surface temperatures, and now we are essentially forced to shake a Magic 8 Ball over a boiling pot of water.
The loss of historical predictability has sent ripples through the global financial sector. Munich Re and Swiss Re, which rely on predictable catastrophe cycles to price risk, reported Tuesday that their existing El Niño models are currently yielding a margin of error of roughly one entire hemisphere. Meanwhile, the carbon-credit registry Verra has temporarily frozen the issuance of new forestry offsets, citing an inability to guarantee that any given stand of trees will not spontaneously combust before the fourth quarter of 2025.
Major oil producers remain largely insulated from the forecasting uncertainty. A spokesperson for Chevron confirmed the company's internal modeling has assumed a destabilized, entirely unpredictable Pacific weather system since at least 1989, allowing the firm to comfortably maintain its current deepwater extraction targets regardless of the shifting climate.
The World Meteorological Organization is expected to formally classify the Holocene epoch as a legacy scenario ahead of its next quarterly climate update in Geneva.