National Weather Service United States Department of Commerce

Dangerous Heat Persists in the Southern U.S.;

Heat advisories and Excessive Heat Warnings persist across the Southern Plains and the Lower Mississippi Valley. Conditions should slowly improve in these area by Thursday. Severe storms and localized areas of flash flooding may occur across parts of the mid Mississippi Valley and portions of the southern and central High Plains. Read More >

NWR Specific Area Message Encoding (SAME)

 

Detailed SAME System Specification (pdf file)

You need the free Adobe Acrobat Reader to read pdf files.


Explanation of NWR and SAME

NWR service to a county depends on reliable signal reception, which typically extends in about a 40 mile radius from the transmitter, assuming level terrain. Counties without NWR coverage or partial NWR coverage are indicated. Some counties or parts of counties, especially in mountainous areas, may not have reliable reception due to signal blockages or excessive distance from the transmitter.