Welcome to the CIWS Website Select a web display from the links below (password required): CIWS Live Website CIWS Website Archives To request an account, use the: Account Request Form

Permission to further distribute the CIWS images must be obtained from the FAA CIWS Product Team and MIT Lincoln Laboratory.

Website Updates

• January 8, 2010
  - Added the option to view an outline of the radar no-coverage areas while Satellite is on. This option can be found by right click on the Satellite button.
  - Added warning when website is simultaneously open in multiple browser windows or tabs (see Known Issues).
  Known Issues:
  - Opening the site in multiple browser windows can cause changes to settings in one window to be applied to other windows in unexpected ways.
  - Using the browser's "Back" button while interacting with the site may put the site in an inconsistent state.
  
  
• August 24, 2009
  - Added server-side configs, allowing users to save their settings on the server, and then access them across different computers and browsers.
  - Improved login session handling. Added "Log Out" link.
  
  
• April 24, 2009
  - Added "My Overlays" tab under Overlay settings, allowing arbitrary point overlays to be added to the map.
  Fixed:
  - When many overlays were added (over 100 or 200), all overlays would disappear. Now, a message is displayed when a user tries to go over the overlay limit. The limit depends on which overlays are added, and will exceed 150 overlays in most cases.
  
  
• November 13, 2008
  - Precip phase information added to both real-time and forecast images. It is automatically displayed as part of the Winter Precip product.
  - Archives now available for over 5 months of past weather. Archive page background changed to make it noticeably different from the Live page.
  - Major Roads overlays added for the 50 US States. (See "Roads" category under Overlays -> Browse..)
  Fixed:
  - Beginning 11/3/2008, archive times from 11/2/2008 and older were wrong by one hour due to a bug involving daylight-savings-time.
  - The site loads without any overlays appearing either on the map or in the Overlays dialog.
  
  
• August 18, 2008
  - Radar data loss layer added to show which radars are currently unavailable. It can be disabled by going to 'View' in the top menu.
  - Storm Motion product now only shows storm extrapolated positions (cyan lines) when map is zoomed in so that map is less cluttered when zoomed out.
  - Available overlays updated (56-day update).
  - Safari browser now supported.
  
  
• July 31, 2008
  - Lakes, rivers, and Canadian boundaries have been added to the default "Boundaries" overlay.
  - The currently-selected home can now be seen in the top menu and in the Accuracy settings dialog.
  - Archive storage has been increased to 3 weeks (was previously 2 weeks).
  
  
• June Release, 2008
  - Expanded coverage to include the CONUS (Continental United States)
  - Increased product resolution (.5 nmi)
  - Archive playback capability with the same interface and products as the live version of the site
  - Ability to view all products from the same window
  - Ability to pause, step through, and animate the images at different speeds
  - An improved Overlay interface
  - Ability to add overlays to the forecast
  - Expanded past weather loop to 2 hours
  
  
• Previous Version History
  

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• Send all comments and questions to wxwebmaster@ll.mit.edu. If a more immediate response is needed, please call the Site Operations Center at 1-800-570-4851.