Precautionary Use Statement: This product is for flight planning
purposes only and should always be used in combination with ceiling and
visibility (C&V) information from official sources such as METARs, AIRMETs,
TAFs and Area Forecasts. CVA (Ceiling and Visibility Analysis) is intended to
aid situational awareness with a quick-glance visualization of current C&V
conditions across an area or along a route of flight. CVA derives C&V for
areas between METAR stations so may, as a function of distance from a METAR,
misrepresent actual conditions. See the Help Page for additional information
on CVA use and limitations.
National Weather Service is seeking comments on the
of the National Ceiling and Visibility Analysis (NCVA) on or around March 31, 2020.
Regional Ceiling and Vis Plots
Click on site name to access regional plot