The National Weather Service’s Riverton Office will be flying blind beginning Monday and continuing for about two weeks. National Weather Service Director Jack Hayes says the doppler radar serving western and central Wyoming will be enhanced with the latest dual-polarization technology resulting in better estimation of precipitation amount, size, and type. Hayes says it can also detect the presence of airborne tornado debris, giving a forecaster a high degree of confidence that a damaging tornado is occurring. This, he says, helps a forecaster confirm and track the location of a tornado, which is especially helpful at night when tornadoes are difficult to spot with the human eye. Forecasting weather for western Wyoming during the upgrade will be uninterrupted since observations are made using a link with the radar at the Pocatello Weather Service Office. Forecasting in Central Wyoming, however, will be dependent on reports from spotters during the two-week period.