Inside NOAA's labs, weather and climate became mathematics. A generation of scientists turned forecasting from educated guesswork into a reliable five-day prediction, and a lab in New Jersey built the physical climate models that earned Syukuro Manabe a Nobel Prize. The episode covers Doppler radar, hurricane aircraft, Pacific buoys and the weather balloons every forecast depends on.
Lorenz's chaos theory sets a theoretical limit on weather prediction, though AI models show surprising skill. Rapid hurricane intensification remains largely unsolved, and El Niño forecasts beyond six months have improved only modestly.