On August 19, 1940, F. W. Reichelderfer, Chief of the Bureau, signed an Administrative Circular declaring that all communications given a wide distribution would be designated "Circular Letters" in order to clear the confusion over its definition from previous years. Such letters may contain announcements of certain events or general information to Bureau personnel that may be of a temporary nature. Circular Letters are numbered serially followed by a dash and the last two numerals of the calendar year of issue. Circular Letters were signed by the Chief or Acting Chief of the Bureau and were dispersed to all first-order stations.
The NOAA Central Library maintains a collection of Circular Letters from August 15, 1940 through 1966, but the collection is not complete and is missing one or more issues in certain years. An Alphabetical Index to Circular Letters (1940-1952) is included as a finding aid. Only Circular Letters that were still in effect as of January 1, 1953 are included in this index. After 1953, the first Circular Letter in each year includes a Table of Contents listing the Circular Letters still in effect as of that date.
NOTE:Articles are in PDF format and require the free Adobe reader.
Select the year of the issue of Circular Letters that you wish to view from the menu below, then press the "View Report" button.
Funding for the digitization these reports was provided by the NOAA Climate Database Modernization Program (CDMP), National Climatic Data Center, Asheville, NC.
Please credit the NOAA Central Library Data Imaging Project when using this resource.
If you have questions or comments concerning this resource, or you need further assistance, please contact:
Library.Reference@noaa.gov, 301-713-2600 ext. 157.