Fog/Stratus/VisibilityForecasting Fog & Visibility
Even with a thorough understanding of fog processes and conditions, forecasting fog and visibility in the Arctic is complicated by the uncertainty in model estimates. This uncertainly is influenced in part by a lack of data, and particularly by a dearth of microphysical observations at extreme northern latitudes. For example, this map shows global radiosonde locations. Note the paucity of soundings from the Arctic. Studies have shown that errors on the order of 20 to 30 percent in relative humidity or liquid water content can result in a 50 percent uncertainty in projections of visibility.