National Weather Service United States Department of Commerce

Severe Weather in the Plains; Heavy Rainfall in the Ohio and Tennessee Valleys; Heat Wave in the Central U.S.

Numerous severe storms with a potential for severe wind gusts, tornadoes (some potentially strong), and very large hail are expected in parts of the central and northern Plains. Heavy rainfall may bring a flooding threat to parts of the northern Plains and from the Ohio Valley to the Southeast. Fire weather concerns persist in the Four Corners Region. Hot and humid expected in the central U.S.. Read More >

The NWS uses satellite and Internet broadcasts for disseminating the EMWIN datastream. Reception and repeating of all broadcasts requires specialized equipment or software, available commercially (some for FREE). The following vendors supply general off-the-shelf hardware or specialized equipment useful for receiving, rebroadcasting, and using EMWIN data.

Note: A listing here does not imply any particular endorsement by the NWS (disclaimer) as a function or suitability for your purpose of environment.


  • Zephyrus Electronics, Ltd

    171 S. 122 E. Avenue
    Tulsa, OK 74128-2405
    (918) 437-3333 Fax:(918)438-7322
    Contact: Robert Hale
    Zephyrus Website
    Contact page

    EMWIN Hardware and Software. Complete EMWIN solutions. Manufacturer of GOES EMWIN earth station systems with automatic switching between two satellites. Currently developing an EMWIN-N system. EMWIN retransmission processors for wire distribution or VHF broadcast. Frequency agile VHF receivers for high speed satellite and radio use of EMWIN. Allows for live weather data stream into your PC via satellite and radio

  • Weather Message

    Weather Message website

    Offers specialized software to decode and process National Weather Service messages. This software can be used to provide weather information and storm alerts to local governmental agencies, schools, and private groups

  • RealEMWIN

    Skywatch Weather Services
    Skywatch/EMWIN website

    EMWIN Software. EMWIN Internet Data broadcasting and receiving software, Software packages for free Automatic paging of Weather products to your pager from your own computer systems, mailing lists & services

  • Tigertronics

    400 Daily Lane
    P.O. Box 5210
    Grants Pass, Oregon 97527
    (541) 474-6700
    (541) 474-6703 (fax)
    Tigertronics website

    EMWIN hardware. EMWIN Modulators and Demodulators for Satellite and Radio Broadcasts

  • Weather Graphics Technologies,Inc.

    P.O. Box 450211
    Garland, TX 75045
    (888) 388-0070
    (405) 573-0700
    (972) 495-6848 (fax)
    Weather Graphics website

    EMWIN Hardware and Software. Latest version of DIGITAL ATMOSPHERE software. Graphical weather display applications for EMWIN. Turnkey hardware-software packages for receiving, displaying, and use of EMWIN. World Wide Maps and features.