Home > Alerts
Experimental XML Feeds and Web Displays of Watches, Warnings,
and Advisories
The RSS and CAP feeds presented on this page are expected to be phased out and replaced by those available here by December of 2009. Please update your bookmarks and feed readers!
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NOAA's National Weather Service offers several XML services
|Forecasts||Watch/warnings||Current Observations||Tropical Cyclone Advisories||Storm Prediction Center Forecast Products||Change Notices|
This page provides access to NWS watches, warnings, advisories, and
other similar products several different formats. Select a state
or product name to view a list of active alerts in your web browser.
These files are updated about every two minutes.
About HTML/Web
Use html to view the information using your web browser. Select any
state to see a complete of alerts for that state.
About RSS
RSS is an XML based document format for syndicating news and other
timely news-like information. It provides headlines, URLs to the
source document and brief description information in an easy to understand
and use format. RSS based "News Readers" and "News
Aggregators" allow the display of RSS headlines on workstation
desktops. Software libraries exist to read the RSS format and present
RSS headlines on webpages and other online applications.
These NWS supplied RSS documents use the RSS 2.0 format. Each
RSS item links to the html/web documents described above. Additional
technical information is available from the following non-US Government
website:
RSS
2.0 Specification
A non-US Government maintained list of RSS readers, aggregators
and related software:
RSS
Software
About CAP/XML
Common Alertings Protocol (CAP) is an non-proprietary standard data
format for the interchange of hazard warning and reports. More information
on CAP can be found at the CAP information:
The
CAP: What, Why and How
Technical information about CAP is available from this non-US
Government maintained website:
CAP
Working Documents
NWS Alert CAP messages contain the county FIPS code
information for the affected county in the cap:geocode tags. Additional
cross references to NWS forecast zones is available.
A list of possible data that is populated in the <cap:event> field
is available.
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