National Weather Service United States Department of Commerce

Heavy Rainfall and Flooding Concerns in the Southwest; Coastal Low to Impact the East Coast

Deep tropical moisture will lead to widespread showers and thunderstorms capable of producing flash flooding through early next week over the Southwest and Four Corners. A coastal storm is expected to develop off the southeast U.S. coast tonight and is expected to strengthen and bring flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

NOAA Weather Radio

National Program

NWR Coverage Maps

Weather.gov > NOAA Weather Radio > NWR Coverage Maps

Click on a state to view coverage.

Coverage is affected by many factors.

Read the Coverage Map Notes below to understand these factors on the state and individual maps.

Map of USA

Coverage Map Notes

The coverage statistics and maps are calculated using a computer model and station data, assuming ideal conditions. Actual coverage may be 5 to 10 percent below the computer-predicted coverage due to the following factors:

  • The computer model is sensitive to antenna performance. Antenna performance depends on local conditions, which can cause signals to have stronger levels in some directions than others.
  • The placement of NWR antennas is dictated by the tower owner, which may result in a less-than-ideal setup.
  • Nearby structures or bodies of water may interfere with antenna performance.
  • In some cases, antennas may be intentionally adjusted to be "directional" to improve coverage in a specific area at the expense of others.
  • Variations in local site conditions can affect the performance of an individual transmitter and antenna, resulting in less-than-predicted or expected coverage.
  • Seasonal environmental conditions, such as icing or heavy rain, can impact the performance of a transmitter station and its components, particularly those exposed to continuous weather.
  • The coverage maps are displayed in a single-color format, which corresponds to an estimated signal level.
    A signal level greater than 18 dBuV indicates reliable coverage.
Link to Alabama Map Link to American Somoa Map Link to Washington Map Link to Idaho Map Link to Oregon Map Link to California Map Link to Nevada Map Link to Arizona Map Link to New Mexico Map link to Utah Map link to Colorado Map Link to Wyoming Map Link to Montana Map Link to Marianas Map Link to Guam Map Link to Hawaii Map Link to Puerto Rico Map Link to Virgin Islands Map Link to Texas Map Link to Oregon Map Link to Kansas Map Link to Nebraska Map Link to South Dakota Map Link to North Dakota Map Link to Minnesota Map Link to Iowa Map Link to Missouri Map Link to Arkansas Map Link to Louisiana Map link to Delaware Map Link to New Jersey Map Link to Wisconsin Map Link to Illinois Map Link to Mississippi Map Link to Tennessee Map Link to Kentucky Map Link to Indiana Map Link to Michigan Map Link to Ohio Map Link to Georgia Map Link to South Carolina Map Link to North Carolona Map Link to Virginia Map Link to West Virginia Map Link to Maryland Map Link to Delaware Map Link to Pennsylvania Map Link to New Jersey Map Link to New York Link to New York Link to Vermont Link to New Hampshire Link to Connecticut Link to Massachusetts Link to Rhode Island Link to Rhode Island Link to Maine Link to Alaska North Central Link to Alaska Link to Alaska South Central Link to Alaska South East Link to District of Columbia Link to Florida Map
NWR RSS Feed  NWR RSS Feed