• Welcome to the Dissemination Systems Branch landing page. From here you can access six tabs down the left edge; Dissemination Home, FAQs, Coverage Comparison, System Comparison, Network Diagram, Dissemination Table, and Acronyms. Picture below is of a tornado funnel cloud touching the surface and picking up dust.
• Down the center of the web page is NWS Office of Dissemination information ending in a link to Weather Ready Nation. And a second paragraph about the Dissemination Systems Branch (DSB) . Following this paragraph are Dissemination Systems. Here are descriptions of the four dissemination systems; NOAA Weather Radio All Hazards, NOAA Weather Wire Service, Emergency Managers Weather Information Network, and the International Services and Communication Systems with two sub-system bullets; G T S Internet File Service, and GeoNetCast- Americas. Each of the description titles for systems and sub-systems are hyper links to the respective URL. Below the last sub-system listed is a table indicating the NOAA Weather Radio transmitter status as of  .
• The right edge of the web page has a general picture depicting a weather feature; a long straight road with dark thunder clouds above and a tornado funnel cloud touching the horizon of the road. Below is a yellow box with various updates; expansion of partial county alerting, links to public information statements, the partial county expansion page, a link to ISCS – 0227 new Micronesia products from the Weather Forecast Office located in Guam. Below this is a table indicating the operational status of the dissemination systems. Finally, a note about the last NWWS transition completed on June 16, 2022.

This information was current on:
 

Welcome to the Frequently Asked Questions (FAQ ) page.

• This page follows the standard setup with nine horizontal tabs under the main National Weather Service title; these tabs are Home, Forecast, Past Weather, Safety, Information, Education, News, Search, and About.
• Under the Home tab on the left is a box to enter your “city”, “state”, or zip-code, then a “GO” button to receive a local forecast. Next to this feature is text box highlighting a weather feature.
• Under the above area on the left is the FAQ title with links to weather dot gov and national weather service dissemination parent pages. There are seven horizontal tabs; DSB Home, Systems, DSB Information, Notices, Contacts, About DSB, and Resources. This is followed by a banner across the middle of the page indicating Frequently Asked Questions and four vertical tabs down the left side; Important Links, Contact Us, Coverage Comparison, and Other Resources; and four horizontal clickable links for NWR FAQs (for NOAA Weather Radio), NWWS FAQs (for NOAA Weather Wire Service), E M W I N FAQs (for Emergency Managers Weather Information Network), and ISCS FAQs (for International Services and Communication Systems).
• Clicking on one of the FAQ links will produce a series of question links down the middle of the page. Clinking the respective FAQ will produce a response box.

• Welcome to the System Coverage Comparison page. This page follows the standard setup with nine horizontal tabs under the main National Weather Service title; these tabs are Home, Forecast, Past Weather, Safety, Information, Education, News, Search, and About.
• Under the Home tab on the left is a box to enter your “city”, “state”, or zip-code, then a “GO” button to receive a local forecast. Next to this feature is text box highlighting a weather feature.
• Under the above is the National Weather Service Dissemination title with the weather dot gov link under. There are seven vertical tabs; DSB Home, Frequently Asked Questions (FAQ), Coverage Comparison; which is highlighted in blue indicating the current webpage, System Comparison, Network Diagram, Dissemination Table, and Acronyms. There are seven horizontal tabs; DSB Home, Systems, DSB Information, Notices, Contacts, About DSB, and Resources. This is followed by a banner across the middle of the page indicating Coverage Comparison.
• Coverage maps are provided in the following order; NOAA Weather Radio propagation, NOAA Weather Wire Service Galaxy-28, EMWIN GOES East and GOES West, and ISCS GeoNetcast for the Americas (GNC-A).
• NOAA Weather Radio propagation coverage based on over 1030 transmitters covers over 95% of the United States including Guam, the Marianas, American Samoa, Puerto Rico, and the Virgin Islands. Alaska coverage is isolated to high population areas and some coastal areas.
• NOAA Weather Wire Service satellite coverage extends over Central and North America, the Caribbean to the West Coast of Greenland, most of the Canadian Archipelago north. West coast of Alaska may require a larger dish to receive the NWWS transmission.
• EMWIN GOES transmission covers the Central Pacific to Central Atlantic and North, Central and South Americas. ISCS GNC-A plot covers North, Central and South Americas, Eastern Pacific to Europe and Africa West Coast. Alaska and Western Northwest territories Canada are outside the marginal reception ring.

• Welcome to the Dissemination System Comparison page. This page follows the standard setup with nine horizontal tabs under the main National Weather Service title; these tabs are Home, Forecast, Past Weather, Safety, Information, Education, News, Search, and About.
• Under the Home tab on the left is a box to enter your “city”, “state”, or zip-code, then a “GO” button to receive a local forecast. Next to this feature is text box highlighting a weather feature.
• Under the above is the National Weather Service Dissemination title with the weather dot gov link under. There are seven vertical tabs; DSB Home, Frequently Asked Questions (FAQ), Coverage Comparison; which is highlighted in blue indicating the current page, System Comparison highlighted in blue for the current webpage, Network Diagram, Dissemination Table, and Acronyms. There are seven horizontal tabs; DSB Home, Systems, DSB Information, Notices, Contacts, About DSB, and Resources. This is followed by a banner across the middle of the page indicating System Comparison.
• A box containing the four system linkable acronyms with the respective definitions is in the middle; NWR, NWWS, EMWIN, and ISCS.
• A 5-column table follows the box with each system in a column across the top and method of dissemination down the leftmost column.
• Satellite Dissemination is available in NWWS, EMWIN, and ISCS.
• Radio Broadcast is only available from NOAA Weather Radio.
• Internet Push is available only from NWWS.
• Internet Pull is available from EMWIN and ISCS.
• eMail dissemination is not available from any of the four dissemination systems.
• Direct dissemination to social media is not available from any of the four dissemination systems.
• Interactive Webpages is offered from EMWIN and ISCS where the webpages allow products to be downloaded by clicking on the product files.
• United States National Products, alerts and warnings are available from all dissemination systems.
• International Products are available over EMWIN and ISCS.
• Image products are available over EMWIN and ISCS.
• Below the table are comparative descriptions for each dissemination system; Geo Coverage, Receiving System, Access Constraints, Estimated one-time cost, Recurring costs and any supplemental information.
• These descriptions are in the same dissemination system order; NWR, NWWS, EMWIN, and ISCS.

Welcome to the Dissemination Network Diagram page.

• This page follows the standard setup with nine horizontal tabs under the main National Weather Service title; these tabs are Home, Forecast, Past Weather, Safety, Information, Education, News, Search, and About.
• Under the Home tab on the left is a box to enter your “city”, “state”, or zip-code, then a “GO” button to receive a local forecast. Next to this feature is text box highlighting a weather feature.
• Under the above is the National Weather Service Dissemination title with the weather dot gov link under. There are seven vertical tabs; DSB Home, Frequently Asked Questions (FAQ), Coverage Comparison, System Comparison, Network Diagram; which is highlighted in blue indicating the current webpage, Dissemination Table, and Acronyms. There are seven horizontal tabs; DSB Home, Systems, DSB Information, Notices, Contacts, About DSB, and Resources. This is followed by a banner across the middle of the page indicating User Alert Modes.
• A diagram of boxes and lines connecting to a list of user modes is in the middle. User modes include satellite, Internet, and radio.
• Satellite reception mode is available from EMWIN with 1-meter dish, NWWS and NWS SBN/NOAAPORT Galaxy-28 via 1.8 meter dish or greater, and GNC-A ISCS with a 1-meter dish.
• Internet reception mode is available from EMWIN, NWWS Open Interface, and ISCS GIFS.
• Radio reception is only from NOAA Weather Radio; however in some areas EMWIN users are able to rebroadcast over specific VHF.
• See Dissemination Table (left side tab) for additional information.

Welcome to the Dissemination Table page

• This page follows the standard setup with nine horizontal tabs under the main National Weather Service title; these tabs are Home, Forecast, Past Weather, Safety, Information, Education, News, Search, and About.
• Under the Home tab on the left is a box to enter your “city”, “state”, or zip-code, then a “GO” button to receive a local forecast. Next to this feature is text box highlighting a weather feature.
• Under the above is the National Weather Service Dissemination title with the weather dot gov link under. There are seven vertical tabs; DSB Home, Frequently Asked Questions (FAQ), Coverage Comparison, System Comparison, Network Diagram, Dissemination Table; which is highlighted in blue indicating the current webpage, and Acronyms. There are seven horizontal tabs; DSB Home, Systems, DSB Information, Notices, Contacts, About DSB, and Resources. This is followed by a banner across the middle of the page indicating Dissemination Table.
• Below this is a seven column table with modes down the left column and a column for each dissemination system; NWR, NWWS, EMWIN, ISCS, F T P Anonymous, anDSB N / NOAAport.
• Satellite mode; NWWS S B N / NOAAport Channel 201, EMWIN GOES Channels 20, 21 and 22, ISCS GNC-A Channels listed, anDSB N / NOAAport Channels 101 to 108.
• Internet mode; may be available of local WFO webpage, NWWS Open Interface one-way chatroom, EMWIN FTP server, ISCS GIFS, FTP Anonymous server.
• FM Radio mode; NWR frequencies between 162 point 400 and 162 point 550 mega hertz, EMWIN rebroadcast may be available over 163 point 300, 163 point 325, 163 point 350, 168 point 7125 or 168 point 8125 mega hertz.
• Used for Emergency Alert System activation mode; NWR , NWWS , anDSB N / NOAAport
• CAP formatted digital messaging mode; only over S B N / NOAAport