The UN weather body on Wednesday expressed concern over the potential impact of the coronavirus pandemic on weather observations, noting that much of its data comes from commercial airlines whose flights have dramatically declined in much of the world.

“At this time, the adverse impact of the loss of observations on the quality of weather forecast products is still expected to be relatively modest,” said Lars Peter Riishojgaard, a director in the Earth System Branch of the World Meteorological Organization (WMO).

“However, as the decrease in the availability of aircraft weather observations continue and expands, we may expect a

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