An Internet home page, using http technology servers, is one method used by the NWS to disseminate the EMWIN data stream. The Interactive Weather Information Network(IWIN) page uses html formating and additional hyperlinks to an EMWIN server that ingests the data. Access to this data, as a linked series of clickable screens, is provided to clients operating web browsers. Graphics or text-only access is provided. FTP access is also available.
While Internet access is convienent, there are times, especially during major weather events, that access may be difficult or impossible due to server overloads.
The IWIN server has been online since September 1995, handling an average load of 1 million connections per day with peak loads of over 2 million connections per day during major weather events.
Using FTP, open iwin.nws.noaa.gov; login as "anonymous", with your e-mail name as password; click on data, and then on graphics or text.
The text subdirectories are organized by WMO heading, and the sub files generally by the heading's CCCC station location code. For CONUS sites, this is usually a "K" plus our 3-character FAA or NWS code, as collated here by site code or WFO code.
Using FTP, open 184.108.40.206/index.html; login as "emwin", and use "emwin" for a password. Read the file index.htm for complete information about downloading and using the EMWIN data.
Testing at this time. For Reliable Access to Live Data, use Satellite Broadcasts and local radio local radio broadcasts of EMWIN data. During major weather events, your connection to the internet and local electric grid may both be affected.
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
1325 East-West Highway
Silver Spring, MD 20910
Page Author: EMWIN Team
Web site owner: NWS/OPS17
Freedom of Information Act (FOIA)