National Weather Service United States Department of Commerce

Severe Weather and Flood Potential for the East; Fire Weather Concerns for the Southwest and Alaska

Severe thunderstorms and heavy rainfall will affect the eastern portions of the country today. Across the Pacific Northwest and northern Plains, showers with the chance for severe thunderstorms later today. For the Southwest and southern portions of Alaska, fire weather concerns expected today and could extend into the holiday weekend. Rip currents are possible for the east coast and Puerto Rico. Read More >

NWR Coverage

 

 


USA MAP

WZ2522 KEC91 WXK88 WXM34 WWH27 WWF94 KIG98 WXL95 KIH37 WWF97 WXL97 WWH28 WNG559 WNG560 KHB30 WXL85 WNG596 WXL98 KIH32 WZ2509 KEC42 WNG674 KIH33 WXL96 WWF80 WNG697 WWF95 Nevada Coverage Map Washington Coverage Map Idaho Coverage Map


 

Coverage Map Notes

The coverage statistics and maps are calculated using a computer model and station data assuming ideal conditions. Coverage may be 5 to 10 percent below the computer predicted coverage for the following reasons:

  • The computer model is sensitive to antenna performance. Antenna performance is a function of local conditions, causing signals to be stronger signal level in some directions than others.
  • Placement of NWR antennas is dictated by the tower owner, which may result in a less than ideal set up.
  • The antenna may be affected by nearby structures or bodies of water.
  • In some special instances, the antenna may have been intentionally adjusted to be "directional" and provide better coverage to a specific area to the detriment of other areas.
  • Because of variations in local site conditions, the performance of an individual transmitter and antenna may be less than predicted or expected.
  • Seasonal environmental conditions, such as icing or heavy rain, affect performance of a transmitter station and its various components, particularly those subject to continuous weather exposure.
  • The coverage maps are shown in a single color format, which relates to an estimated signal level.
    • White: Signal level of greater than 18dBuV: Reliable coverage