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National Ceiling and Visibility (NCV) Analysis Product
Data Mining Tool
Outreach / Education
The NCV product is a frequently updated representation of current ceiling and visibility conditions derived from METAR (ASOS) stations and GOES satellite information. The products ceiling and visibility fields are derived through nearest neighbor interpolation of METAR data. This interpolation process, in effect, stretches limited-area METAR observations across the broader domain between stations while an accompanying process accounts for terrain effects on ceiling height. The resulting field helps to visualize the likely conditions at range from METARS.
Product information and survey access
Point of Contact
Document (e.g. PDD)
Comment Start Date:
0000-00-00 Comment End Date: 0000-00-00
Approved for Operational Implementation
FAA Safety Risk Management process approved this for operational use with certain risk mitigations. Aviation Services is working with the FAA and NCAR to implement those mitigations.
Last edit date to this meta-data: 2017-12-15