NHC RSS Feed Updates
In response to customer feedback, the National Hurricane Center has updated its RSS feeds to improve
content delivery and to provide more useful information. The changes have been tested and enhanced by working with
several customers and partners who use the National Hurricane Center's data and advisory services. The edited feeds
are effective Wednesday, 17 September 2008.
Graphical Tropical Weather Outlooks: http://www.nhc.noaa.gov/gtwo.xml
Podcasts en Español: http://www.nhc.noaa.gov/audio/index_podcast_sp.xml
Below is a summary of the changes:
1. The per-storm feeds now indicate the status of storm advisories for each of the 5 individual NHC "wallets" for both the
Atlantic and Eastern Pacific basins. If a storm is not active in a particular wallet, the RSS feed will
indicate "No current storm". This change helps prevent RSS readers from displaying old or stale NHC advisory information, a common
2. The 10 per-storm feeds will update on a more consistent basis and will always be available through "auto-discovery" on NHC's main
web page at http://www.nhc.noaa.gov. Most modern web browsers indicate the availability of such RSS feeds by
using the RSS icon .
3. Feeds are now W3 compliant and have been tested with http://validator.w3.org/feed/ to
ensure a wide range of RSS readers can process the xml files. RSS readers will now be able to determine when
NHC content was last updated and when the RSS feed was last published. For example, the previous RSS feeds did not contain the
<pubDate> code...which is needed by RSS feed readers to properly determine the age of the RSS content. Additionally,
appropriate NHC contact information is now provided in the feeds.
4. The per-storm and full basin feeds will contain information for the GIS data files that NHC is producing (see
example feeds below for more information).
5. Feeds will start incorporating more use of the CDATA tags to preserve HTML formatting. This structure can
be seen in the Graphical Tropical Weather Outlooks feeds.
6. New RSS feeds have recently been introduced, such as:
Example Feeds (updated 24 June 2009):
index-at.xml (Atlantic Basin - no current storm)
index-at-sp.xml (Atlantic Basin en Español - active storm)
index-at-sp.xml (Atlantic Basin en Español - no current storm)
index-ep.xml (Eastern Pacific Basin - active storm)
nhc_at1.xml (Atlantic Wallet 1 - Tropical Storm Alex)
nhc_at2.xml (Atlantic Wallet 2 - no current storm)
nhc_at3.xml (Atlantic Wallet 3 - no current storm)
nhc_at4.xml (Atlantic Wallet 4 - no current storm)
nhc_at5.xml (Atlantic Wallet 5 - no current storm)
nhc_ep1.xml (E Pacific Wallet 1 - no current storm)
nhc_ep2.xml (E Pacific Wallet 2 - no current storm)
nhc_ep3.xml (E Pacific Wallet 3 - no current storm)
nhc_ep4.xml (E Pacific Wallet 4 - Hurricane Celia)
nhc_ep5.xml (E Pacific Wallet 5 - Tropical Storm Darby)
gtwo.xml (Graphical Tropical Weather Outlooks)
If you have problems, questions, or feedback regarding the RSS feeds, please send them