NWR Transmitter Propagation (original) (raw)
Severe Thunderstorms and Excessive Rainfall in the Southern Plains Today
Heavy to excessive rainfall may produce additional flash flooding today across parts of the southern Plains where the greatest risk is along the Red River Valley into western Arkansas. Scattered severe thunderstorms are possible today from north central Texas into the ArkLaTex Region. Large to very large hail, damaging winds, and tornadoes are all possible, with some strong-tornado potential.Read More >
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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.
- Signal level of greater than 18dBuV: Reliable coverage
Transmitter Status
| Legend | |
|---|---|
| Normal |  |
| Degraded |  |
| Out of Service |  |
Areas Receiving Alert Tones
Coverage Area
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