National Weather Service United States Department of Commerce

NOUS41 KWBC 021720
Public Information Statement 20-50
National Weather Service Headquarters Silver Spring, MD
120 PM EDT Thu Jul 2 2020

To: Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
Other NWS Partners and NWS Employees
From: Michelle Hawkins, Chief Severe, Fire, Public, and Winter Weather Services Branch
Subject: Seeking comments through August 2, 2020 on on proposed replacement of RIDGE I radar webpage with RIDGE II radar webpage

The National Weather Service (NWS) is proposed to replace the Radar Integrated Display with Geospatial Elements (RIDGE) Radar Version I webpage with the Version lI webpage. NWS was soliciting comments on the proposed RIDGE II radar webpage until August 2, 2020.

RIDGE I operational URL:
RIDGE II preview URL**:

**At this time the URL was only intended for users to provide feedback. Users should not set up operational feeds from it.**

The RIDGE Version II would replace RIDGE Version I of FLASH with HTML5 and Javascript with a web-based and mobile-friendly display that uses Multi-Radar Multi-Sensor (MRMS) datasets on an interactive map containing Open Geospatial Consortium (OGC) compliant layers. Along with the included radar products, users would also have the ability to display NWS long- and short-fused Watches, Warnings, and Advisories.

The web map is optimized for small and large screen devices. Users can bookmark a particular perspective of the map or select and save the perspective of a particular radar. As a result, there would no longer be a need for the individual web pages that display specific Weather Surveillance Radar-1988 Doppler (WSR-88D) products. These webpages (ex.; where ‘aaa’ is the 3-letter identifier of the radar) will be discontinued along with RIDGE I.

For further details, please see the Product Description Document:
The preview geoTIF images can be accessed at:

If approved for replacement, the NWS will issue a Service Change Notice (SCN) detailing when the RIDGE II webpage will be supported operationally. The SCN would also specify the transition period from RIDGE I to RIDGE II. At that point, the current RIDGE I webpage ( would run in-parallel with the new RIDGE II webpage for 75 days to enable users to transition to RIDGE II. At the end of the 75 days RIDGE II will replace RIDGE I.
The NWS is evaluating all comments during this past period and determining any additional and immediate need for changes, based on public feedback.

For questions regarding the information in this notice, please contact:
Greg Schoor
NWS Severe Weather Services Program Leader
Norman, OK 73072
IDP GIS Support Team
Silver Spring, MD
NWS Public Information Notices are online at: