National Weather Service United States Department of Commerce

Useful Links:


NWS Internal Site:


Engineering Handbook 11

ASOS Technician's Home Page


External Links and Resources:


ASOS User's Guide

ASOS User's Guide Appendices

ASOS Data Flow Diagram


Frequently Asked Questions

ASOS Sites

Aviation Surface Weather Observing Network (ASWON)

Aviation Weather Center

Federal Meteorological Handbooks (ICAMS)