This site is for providing the status of the re-transmission of the Emergency Managers Weather Information Network (EMWIN) from the Oak Ridge Operations Center in Oak Ridge, Tennessee.
The status of the DOE EMWIN transmitter is currently operational.
What is EMWIN?
The
Emergency Manager's
Weather Information Network is a data signal which originates at the
Weather Service Headquarters in Silver Spring, Maryland. It is uplinked to
GOES satellites from the transmission site in Wallops Island, Virginia. The
signal is encoded and modulated for satellite broadcast. The National
Weather Service designation for this data is "EMWIN". The information is
distributed as a signal that allows your personal computer to become a
weather graphics, data, and alarm terminal.
With the appropriate "Windows" software, the information is displayed in
both text and graphical form.
The data
stream includes:
Over 6,500 unique weather products
Severe weather warnings anywhere in the coverage area take priority over all
other transmissions
Local, area, and regional forecasts
Hourly conditions of NWS reporting stations
Weather maps
National radar summaries
Weather satellite photographs
Retransmission:
The retransmission is
received by anyone within range of the signal (generally 40 to 50 miles of
the Buffalo Mt. facility (WinRock) and displayed on their computer, using a
variety of software programs available as freeware or purchased. The radio
signal may be received by several methods, it will require the use of an
appropriate receiver and a demodulator or a commercially available,
integrated EMWIN radio receiver capable of receiving the 9600 baud signal
will be required. The EMWIN data stream is received by the Department of
Energy Oak Ridge Operations Center (OROC) and retransmitted on VHF radio
using a frequency of 164.325 MHz with 80 Watts of power at 9600 baud data
rate.
In May 2000, the Department of Energy began operation of the EMWIN retransmission site in East Tennessee.
Disclaimer:Although the signal is generally receivable within a 50 mile radius of the DOE transmitter site, no guarantee to the ability, quality, strength, or reliability is made by DOE or the NWS.
The EMWIN signal should not be solely relied upon for life safety.