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(updated August 06, 2008)
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30 June 2008
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On 03 September 2008, The AWC will begin issuing the Graphical Airman’s Meteorological Advisory (G-AIRMET) as an operational product. See Technical Information Notice 08-40 and Supplement for details.
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27 August 2007
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NWS is seeking comments on Experimental version of the National Ceilings and Visiblity Analysis (NCVA). See PNS Announcement or for more information Click here ...
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17 March 2008
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The NWS will update Aviation Weather Advisory Plotting Chart Reference Points on Tuesday, April 15 2008 at 1500 UTC. See TIN Announcement and Supplement for details.
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28 January 2008
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The issue times for the High and Mid level Significant Weather progs will change effective 12Z, 06 February, 2008. Please see Table(High) and Table(Mid) for details.
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17 July 2007
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PNS announcement for upcoming changes to Domestic, Gulf of Mexico, and Carribean Area Forecasts effective 17 January 2008. Please see AviationWeather.gov/notify/17jan08.php for examples.
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14 September 2007
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NWS will cease producing TWEB forecasts 30 September 2007. See Service Change Notice 07-44 for details.
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12 July 2007
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AWC seeking administrators and programmers to work on ADDS and supporting systems. For more information and links to vacancy announcements, Click here ...
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02 July 2007
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Experimental Graphical AIRMET (G-AIRMET) “Ceiling & Visibility”, and “Mountain Obscuration” will be made available for review for the period July 2 through August 31, 2007. More info ....
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15 June 2007
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PNS announcement for upcoming changes to Domestic, Gulf of Mexico, and Carribean Area Forecasts effective 17 July 2007. Please see AviationWeather.gov/notify/17jul07.php for examples.
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07 December 2006
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TIN announcement for the GTG product update The update scheduled for January 8 2007 has been postponed until further notice.
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06 December 2006
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A new icing product (CIP-SEV) has been made operational, see the icing page and its FYI/Help for more details. In addition, a site update has been released. Please see the information page for more details.
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20 April 2006
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Link provided to Space Weather Prediction Center’s (SWPC) experimental Space Weather for Aviation Service Providers on “Aviation Testbed” page.
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21 February 2006
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Users will notice a change in the appearance of the radar displays. ADDS uses images prepared by the National Weather Service, and the appearance and utility of these images have changed. More information about this change can be found here.
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31 January 2006
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Augustine Volcano - See WFO Anchorage Coordination Page for details.
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27 September 2005
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The Winds and Temperatures Aloft (FBWinds) bulletins “FOR USE” times were changed to cover the gap between the issuance time of the bulletins and the starting time of the initial period. Please see Technical Implementation Notice 05-54 for details.
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20 September 2005
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A proposed update to the left menu has been moved as the default. To view the old layout, select the 'View old menu' option at the bottom of the left menu. This proposed update is intended to improve navigation between the ADDS and AWC sites. Please provide comments by sending an email.
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23 August 2005
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A proposed update to the left menu is available for review and comment. To view, select the 'View new menu' option at the bottom of the left menu. This proposed update is intended to improve navigation between the ADDS and AWC sites. Please provide comments by sending an email.
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June 30, 2005
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As of 30 June 2005, the NWS Aviation Weather Center has begun issuing Significant Weather forecast information (SIGWX) in BUFR format. Please see Technical Implementation Notice 05-17 for details.
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May 17, 2005
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On 1300 UTC Tues 17 May 2005 the communications header designations for US produced SIGMETS, AIRMETS and Area Forecasts changed to comply with WMO convenctions.
If you rely on the header information to access these products, this could impact your ability to receive these products.
Click here for details on the change.
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