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National Weather Service
METAR/TAF Information
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Conversion Tools and Aids
METAR/TAF Quick Reference Guide
METAR/TAF Conversions
An updated series of charts and tables, in WordPerfect 6.1 and 5.1 format,
detailing the differences between the Surface Aviation Observation (SAO)
format and the METAR format, are available for FTP DOWNLOAD ONLY
.
The files are in WordPerfect rather than HTML format for a number of
reasons. These METAR technical documents are not intended for the casual
browser but rather are intended to be used by persons to download for later
study and use. WordPerfect is the standard word processing software used
by the NWS. The METAR technical documents contain special emphasis characters
and extensive use of tables that enhance the usefulness of the document.
These features may be lost in any translation to HTML. These documents
lend themselves much better to being maintained in WordPerfect format and
will not be converted to HTML. We apologize for any inconvenience this
may cause. Where we can utilize HTML-formatted files on this page we will,
and where we find the WordPerfect format to be more suitable we will use
that. Thank you for your understanding and continued interest in the page.
METAR to SAO CONVERSION CHARTS and TABLES
-
U.S. METAR/SPECI CODE FORMAT WITH REMARKS in WP
5.1 or WP
6.1 format.
-
KEY TO DECODE AN ASOS (METAR) OBSERVATION in
WP 5.1 or WP
6.1 format.
-
WEATHER PHENOMENA MATRIX in
WP 5.1 or WP
6.1 format.
-
DIFFERENCES BETWEEN METAR AND SAO (MANUAL ONLY) in
WP 5.1 or WP
6.1 format.
-
COMPARISON OF SAO TO METAR in
WP 5.1 or WP
6.1 format.
FAHRENHEIT/CELSIUS CONVERSION CHARTS
-
FAHRENHEIT TO CELSIUS Conversion Chart in
WP 5.1 or WP
6.1 format.
-
TENTH OF DEGREES CELSIUS TO WHOLE DEGREES FAHRENHEIT in
WP 5.1 or WP
6.1 format.
The Weather Calculator
The Weather Calculator,
courtesy of NWSO El Paso, Texas,
includes temperature unit conversions, moisture conversions, pressure conversions,
and wind speed unit conversions.
Weather Parameter Conversion Tables
Conversion tables for
temperature, pressure, wind, etc., from the NWSFO
San Francisco Bay Area office.
Sunrise and Sunset Calculator
Sunrise
and Sunset Calculator from the US
Naval Observatory.
Page Author: A.W. Jarvi, NWS Office
of Systems Operations
