National Weather Service United States Department of Commerce

Dangerous Fire Weather Conditions Across Southern California

Dangerous fire-weather conditions are expected across southern California Tuesday through Thursday. Strong winds will impact the Desert Southwest into the Sierra Nevada and southern California, which will increase the potential for downed trees, power outages, and difficult travel. Below normal temperatures are expected over much of the South and East through at least the rest of the week. Read More >

NOAA Weather Radio

National Program

NWR Washington Coverage

Weather.gov > NOAA Weather Radio > NWR Washington Coverage

NWR Coverage

 

 

USA 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  
NWR RSS Feed  NWR RSS Feed