Active NWS Weather Alerts
 - Crockett County, TN  - Decatur County, TN  - Dyer County, TN  - Fulton County, KY  - Gibson County, TN  - Hickman County, KY  - Lake County, TN  - Lauderdale County, TN  - Obion County, TN  - Tipton County, TN

 - Decatur County, TN  - Perry County, TN

 - Crockett County, TN  - Dyer County, TN  - Gibson County, TN  - Haywood County, TN  - Lake County, TN  - Lauderdale County, TN  - Obion County, TN  - Tipton County, TN  - Weakley County, TN

 - Calloway County, KY  - Fulton County, KY  - Graves County, KY  - Hickman County, KY

 - Calloway County, KY  - Fulton County, KY  - Graves County, KY  - Hickman County, KY  - Houston County, TN  - Humphreys County, TN  - Perry County, TN  - Stewart County, TN

GRLevel3 Radar
Storm Total Difference (DSD)

NEXRAD Radar KNQA status: Active [last data 0:04:45 h:m:s ago] as of Tue, 20 Feb 2018 13:27 CST

NWS WSR-88D Transmit/Receive Status

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Radar is in UTC/GMT/Zulu Time:
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Storm Cell Attribute Table for Memphis, Tennessee (KNQA) Radar

Retrieved: Tue, 20 Feb 2018 13:27:59 -0600; Data valid day:  20; Data valid time:  1911Z  (Refresh)
Storm Ident Az/Ran TVS
POSH POH Max Size VIL Max dBZ Height Top Fcst Mvmt
No Thunderstorms in Range of Radar Site
Total number of storm cells on radar:  0;  Number of storm cells on table:  0 Introduction Switch to Text
Algorithms produce this table.  They may misrepresent observed conditions. Contact your local NWS office for verification.

Lightening Strikes

GR3 Radar Icon Legend
GRLevel3 Radar Legend

Clear Air Mode: U.S. radar stations operate in either 'Clear Air Mode' when there is no precipitation in the area or 'Precipitation Mode' when rain is in the area. Radar is at its most sensitive state of operation when in clear air mode. The antenna rotates at its slowest rate permitting the radar to sample a given volume of the atmosphere longer giving it the ability to detect smaller objects than when in precipitation mode. Much of what you see in clear air mode is airborne dust & particulate matter.

Precipitation Mode: Radar doesn't need to be as sensitive as in clear air mode. This is because rainfall provides plenty of returning signals giving you a much cleaner view of any rainfall in the area without all of the clutter seen in clear air mode.

Storm Tracks: The Storm Track Feature allows you to see what direction or track the storm is currently headed to. This feature shows a white line extending out of a little white square box from the center of a storm cell. The "x"'s along this white line indicate every 15 minutes where the center of the storm is forecast to be, based on its current speed and direction. For an example, the 4th "x" shows where the storm will be in an hour given its current tracking. The longer the white line the faster the storm is moving.

Using Zoom: You can easily zoom in by clicking on the "Zoom Button" and then clicking on the map. With every click the map will zoom in more and more. Once zoomed in you can then "Click and Drag" the map. The "Click and Drag" is only available when zoomed in. This feature allows you to zoom right into your own neighborhood. To reset the map to the original viewing level, simply click on the "Unzoom Button".

Note: Typically you will see area temperatures, current earthquakes, and highway markers etc when there is no rainfall in the area. When there is rainfall occurring in the area the map is usually cleared to only show the radar, highways and city names, along with rain related icons like hail and cloud rotation on the map. This is because we don't want to put up anything extra that will obstruct the view of the radar during any rainfall event.