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You are at: NWS Home » SRH Home » SR Organization » CWWD » Aviation Weather » Aviation Weather
Aviation Verify Program
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| Overview |
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As of January 2001, it became national policy for all offices to use the Aviation Verify program to track verification results. Aviation Verify is a Microsoft Excel application written by Andrew Rorke (LOX). The program evaluates Terminal Aerodrome Forecasts (TAFs) with respect to observed conditions and model output statistics (MOS) from the nested grid model (NGM). This program attempts to verify the TAF in the manner in which a pilot must use it, using operationally significant ceiling and visibility values. Aviation Verify generates verification statistics on a monthly basis, but statistics for any period of time in the Excel data base may be requested. Statistics can be generated for the individual forecaster or the entire office.
How it works
Aviation Verify breaks each TAF into 288 discrete 5-minute blocks. It does the same for corresponding METAR/SPECI observations. When observations are taken at times that do not end in "0" or "5", the times are rounded to values that end in "0" or "5". Observations are then compared to TAFs and MOS guidance, and each 5-minute block is verified separately for ceiling, visibility, flight category, wind direction, wind speed, wind gusts, and weather.
Forecasts within the PROB and TEMPO groups are also verified. Verification statistics are stratified by projection (0-3, 3-6, 6-12, 12-18, and 18-24 hours) and TAF initiation times (0000, 0600, 1200, and 1800 UTC). TAF amendments are not verified.
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| Downloads |
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Aviation Verify program (right click, then "Save As")
- Version 2.1-MAV (Uses AVN MAV Guidance for verification - 2.2mb)
- Compactor (See Readme)
- Version 2.0a (more robust MTR decoder for non-ASOS sites - uses NGM MOS - 2.6mb)
It is highly recommended that you update to this version...be sure to copy the "setup" page from your previous version so you don't lose your local configuration!
Spreadsheet files for use by staff in entering in the shift they worked.
Word Perfect file of this webpage. (right click, then "save target as")
Aviation Verify Quick setup instructions are provided in Appendix.
Aviation Verification VISITview Training Module
Aviation Verify FAQ's
TAFVerlog.tar Updated version of the program that logs forecaster numbers for use with Aviation Verify. A future version of Aviation Verify will automatically ingest the output from this program...it is being held up for the time being by late national requirement changes.
parseMavForTafs.tar Formats Aviation MOS guidance (MAV) into TAF format for use as a first-guess TAF.
See the readme files contained in each tar file for details on running these programs.
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Overview | Downloads | Multiple Forecasts At One Time | Statistics | Output | Quick Set Up
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Last Modified: February, 10, 2004 |
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