Broadcasting the NWS Emergency Managers Weather Information Network in Denver, Colorado
Page last updated: September 10, 2008
Download RealEMWIN Configuration Files
(updated September 2007)
The Emergency Managers Weather Information Network (EMWIN) is an affordable system that provides a variety of methods for accessing and delivering weather products (warnings, watches, advisories, forecasts, graphical images, etc.) and other critical emergency information. The central system is supported by NOAA's National Weather Service and was developed in partnership with the Federal Emergency Management Agency (FEMA) and other public and private organizations. EMWIN can be tailored to the needs of local emergency managers including multi-agency interoperable communications. The goal of the EMWIN-Denver project to optimize these capabilities.
EMWIN-Denver is a cooperative venture between Colorado North Central Region local emergency managers, the Urban Drainage and Flood Control District (UDFCD), and the National Weather Service. UDFCD, Xcel Energy and the Denver Public Works Department-Wastewater Management Division provided initial local funding for this project. Department of Homeland Security (DHS) grant funds were used to acquire software licenses and radio receiver equipment for 31 sites. The satellite downlink, Internet gateway and radio relay equipment are located at the Adams County Sheriff's Office with facility oversight provided by the Adams County Office of Emergency Management. The rebroadcast station in Commerce City is provided as a public service of Xcel Energy. Technical support is provided by volunteer Ham radio operators who participate in RACES--the Radio Amateur Civil Emergency Service.
To utilize this signal, you need an IBM-compatible computer running Windows 98 or higher, a VHF radio or scanner capable of receiving the FM data transmission on 163.325 MHz, a 9600 baud EMWIN demodulator, and software. There are no recurring costs. Depending on your distance from the rebroadcast transmitter, a vertically polarized outside antenna (scanner or 2-meter amateur radio type) may be required. Generally, the signal is useful within a 35 to 40 mile radius of downtown Denver.
An Internet connection will also be provided to authorized users as a backup or primary connection to the EMWIN-Denver datastream. A public website will also be maintained. Interagency messages between local emergency managers will not be available to the public.
Special software from commercial sources is required. Weather Message, RealEMWIN and InterWARN are the most common software applications. Earlier software versions may be obtained at no cost, but they lack many useful features. Receiving equipment is also available from commercial sources.
EMWIN Receiver Costs
A typical EMWIN receiver station will probably cost $1500-$2000. With some ingenuity the cost may be less.
The total cost is in the equipment. Receiving the signal is free, both from the satellite and the rebroadcast. Once the station is on the air, all a listener will need to receive weather information is a scanner and a soundcard-equipped computer. Of course, an external demodulator and digital-ready scanner (i.e., one with a discriminator tap) will provide the best results.
|Dave Baca||Xcel Energy|
|Ben Baker4||ARES Arapahoe County|
|Ray Bartik2,3,4||Skywarn Systems, Inc.|
|Deanne Criswell||Aurora Emergency Management|
|Todd Fields||Northglenn Communications|
|Bob Glancy||National Weather Service|
|Rob Greer3||Aurora IT|
|Henry Guerra||Aurora Fire Department|
|Art Hostman4||ARES Adams County|
|Rich Kaizen||Denver Emergency Management|
|Laura Kautz||Federal Heights Communications|
|Scott Kellar||North Central Region & Arapahoe County|
|Jim Kubitschek4||ARES Boulder County|
|Chad Kudym3,4||Urban Drainage and Flood Control District|
|Jim Lancy||Arvada Emergency Management|
|Eric Lessard||City of Boulder Public Works|
|David Markham4||ARES State Coordinator/Cunningham Fire District|
|Rebecca Martinez||Brighton Emergency Management|
|Ed Mildenberger4||ARES/RACES Adams County|
|Larry Mooney||National Weather Service|
|Rick Newman1||Adams County Emergency Management|
|Gregory Palmer||Arapahoe County Emergency Management|
|Artie Sandman3||Adams County IT|
|Carol Small||Jefferson County Emergency Management|
|Rocco Snart||Jefferson County Emergency Management|
|Kevin Stewart3,4||Urban Drainage and Flood Control District|
|David Tomalak4||National Weather Service|
|Bob Wold||Colorado Division of Emergency Management|
|3 IT Subcommittee|
|4 Technical Support|
April 29, 2003 request letter (Jim Lancy) Final Equipment Request List
NCR EMWIN Receiver Distribution List
|Adams County||Clear Creek County||Golden||Thornton|
|Arapahoe County||Commerce City||Greenwood Village||Westminster|
|Arvada||Denver, City & County||Jefferson County||Wheat Ridge|
|Boulder, City & County||Elbert County||Littleton||Colorado DEM|
|Broomfield, City & County||Federal Heights||Northglenn||University of Colorado|
|Castle Rock||Gilpin County||Sheridan||Xcel Energy|
To be determined...
|National Weather Service EMWIN|
|National Weather Service -- Denver/Boulder Forecast Office|
|UDFCD ALERT System -- Real-Time Flood Detection and Current Weather Conditions|