National Weather Service United States Department of Commerce

Fire Weather Concerns In Southern California; Storm Impacting New England

The combination of gusty offshore winds, dry conditions and warm temperatures will result in a prolonged period of critical and elevated fire weather conditions across southern California this weekend into next week. Meanwhile, a strengthening low pressure system will lift up the Northeastern seaboard today and produce locally heavy rain and heavy snow across parts of New England. Read More >

The National Weather Service will be replacing its web-based radar displays with a new design on December 16th. The current address for this new radar display is:

https://preview-radar.weather.gov

 

NOTE: The existing radar pages (https://radar.weather.gov) remain operational; the preview page should not be used for operational feeds at this time. On December 16th, this web address will use the new display. 

 

The original version of our radar pages is many years old, and utilizes the Adobe Flash software. Flash is being discontinued at the end of the year. The new radar displays are built using HTML 5 and JavaScript, which are used by current browsers.

Highlights of the new display:

  • Web-based and mobile-friendly displays
  • Uses Multi-Radar, Multi-Sensor (MRMS) datasets on an interactive map
  • Ability to download data in KML format
  • Contains several map layers that are Open Geospatial Consortium (OGC) compliant
  • Ability to overlay long-fused (e.g. winter weather) and short-fused (e.g. severe weather) watches, warnings and advisories
  • Inclusion of several high-resolution radar product types

The customized display can be bookmarked for use. As such, there would be no specific web pages for each individual radar. 

We have created a shortcut centered on central Illinois. It is available at: https://go.usa.gov/x7AS6  The different radar products can be selected by clicking on the "BREF.RAW" menu at the top left. 

Following public comment periods over the summer, several fixes were applied to the new display:

  • Inability for some of the the map overlays to render correctly
  • Radar transparency levels when overlaying the watch/warning/advisory displays
  • Descriptions of radar product types have been clarified
  • Creation of GIF images to replace the existing images, for use in other web pages
  • Updated bookmarks to recent on a selected local radar