Bulletin 53
IMPORTANT NOTICE
Bulletin 53 amendments have now been incorporated into the full document, The Estimation of Probable Maximum Precipitation in Australia: Generalised Short-Duration Method
Now superseded by a new downloadable document that merges the method and data of Bulletin 53 with amendments such as those issued in December 1996 and January 2003.

Bibliographic Reference:
Bureau of Meteorology (1994)The Estimation of Probable Maximum Precipitation in Australia: Generalised Short-Duration Method , Bulletin 53, AGPS, Canberra, ISBN 0 644 334193, amended December 1996 and January 2003.
Bulletin 53 Amendment December 1996
Changes have been made to the method of deriving the spatial distribution of the probable maximum precipitation and to the list of notable point rainfall events in Australia.
Download the amendment:
- As a PDF file(0.3Mb).
Please Note:
- To access PDF documents, you may download the Adobe Acrobat Reader (available for FREE).
Bulletin 53 Amendments January 2003
The most important modification is the update to Figure 3. Figure 1 has also been amended. Both figures may be downloaded from the links below. Figures 5 to 8 on (the facing) pages 12 and 13 are no longer current and should be so marked.
Downloadable versions of these figures, suitable for printing at A3 size, are available.
Figure 1![]() |
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Figure 3![]() |
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The Percentage Increase in GSDM MAF (Moisture Adjustment Factor) Produced by the Introduction of the Latest 24-hour Persisting Dewpoint Data.
This figure is provided for guidance only and applies strictly to the GSDM. New GSDM PMP estimates should only be made by using the new MAF data rather than by simply making adjustments on the basis of this figure.
Figure 1![]() |
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