Seems pandemic times directly impact accuracy of extended weather forecasts. Who knew commercial air traffic accounted for 700,000 meteorological reports a day? Few realize commercial airliners collect and relay data on air pressure, humidity, air temperature and wind speed as the fly their route. 50-75% fewer commercial flights a day translates to a huge gap in weather data available to forecasters. One – three day predictions remain relatively accurate. Notable inaccuracy plagues four – fourteen day forecasts.