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This page, its features and contents are largely in a completed state. However, active development is still on going. If you are curious about feature development and want to float an idea past our development staff, we are certainly open to suggestions from our users. The overwhelming majority of the imagery on this page is rendered at a resolution of 900x900 pixels. Because of this we recommend viewing this page at a 16:9 or 16:10 aspect ratio at a resolution of 1920x1080 or greater. A mobile version of this page is still in development.

Product Description

Correlation Coefficient (or CC) is a dual-polarization product made possible by the radar transmitting two pulses; one oriented horizontally and the other vertically. CC is evaluated by comparing the similarity or dissimilarity between pulses or scans meaning this is a product that takes time into consideration. Its uses are many and varied, in some cases requiring a comparison to base velocity or reflectivity for proper analysis. For an in-depth overview of CC, see the following resource from the NWS: Go here

Website Alert Message



Radar Status Message

122 NOUS61 KLWX 271212 FTMLWX Message Date: Oct 27 2025 12:12:39 LWX RADAR WILL BE DOWN FOR MAINTENANCE UNTIL 14Z. TECH:MB

For further information, check the following twitter accounts for periodic updates on product generation status and website improvements; @CoDWXData and @CODMeteorology. Your feedback is always appreciated, so feel free to respond to tweets or send us an email using our Feedback page.

Dual-Pol Radar Site Selection

Change Map Region: CONUS ALASKA HAWAII Addtional Sites: Guam Puerto Rico
Change Map Type: Radar Radar + Warnings

Active Severe Weather Warnings

Click warning for Full Text - Choose from Available Radars to switch site

Type Counties Affected Tornado Status Hail Size Wind Speed Available Radar(s) Issued by Issuance Time Expire Time

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Product Description
Website Alert & Radar Status Message
Radar Selection
Active Warnings
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Missing Data

We were unable to generate this product. This can happen for a number of different reasons. Be sure to check the status of LWX here and/or here. If the site status is normal and this site or product suffers a continuous outage, keep us aware of it by using our Feedback Page.