National Weather Service United States Department of Commerce

Early Season Heat; Late Season Snow

An early season heat wave will consume a good portion of the Eastern U.S. today through the weekend, including the Northeast, Mid-Atlantic and Ohio Valley. Numerous record high temperatures are likely and heat advisories are in effect for Boston, New York City and Philadelphia. A late season snow will impact the central Rockies and several inches of snow are possible in the Denver metro area. Read More >

NWR Specific Area Message Encoding (SAME)


Detailed SAME System Specification (pdf file)

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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.