AN AFOS Q-VECTOR PROGRAM UTILIZING RDDEL FORECAST DATA

The vertical motion field is an important "bottom line" in any operational weather forecast as it is directly related to cloud cover and precipitation area and intensity. In day-to-day forecasting, vertical motion is often inferred from National Meteorological Center (NMC) model guidance using subjective interpretation of vorticity and temperature advection fields. Unfortunately, these two factors are often of opposite sign making even qualitative evaluation of vertical motion difficult. 1988 National Meteorological Center (NMC) NWS (National Weather Service) NWC (National Water Center) Library Public Domain 1931