## Understanding Radar Map Views To track storms effectively, it helps to understand the different views available on the radar interface: * **Base Reflectivity:** This is the standard view used to detect precipitation. It measures the energy reflected back to the radar. Light green indicates light rain or drizzle, yellow and orange represent moderate rain, and dark red or purple indicates heavy downpours, thunderstorms, or potential hail. * **Composite Reflectivity:** This view displays the maximum reflectivity detected across all vertical levels of the atmosphere. It is useful for spotting developing storms before they produce heavy rain at ground level. * **Storm Relative Velocity:** This view measures the speed and direction of winds relative to the storm's movement. Meteorologists use velocity data to detect rotation, which can indicate the development of tornadoes or severe straight-line winds. ## Key Indicators of Severe Weather

When tracking storms in East Tennessee, look for these common visual cues on the radar: * **Hook Echoes:** A hook-shaped extension on the edge of a storm cell on a reflectivity map often indicates rotation and a potential tornado. * **Bow Echoes:** A line of thunderstorms that bows outward like an archer's bow suggests strong, damaging straight-line winds. * **Hail Cores:** Intense, localized areas of dark purple or pink on the reflectivity scale often signify hail. ## Alternative Ways to Monitor Local Weather While the NWS website offers the most direct data, you can also track local storms through:

* **Local News Outlets:** Television stations in the Tri-Cities market broadcast live radar updates during severe weather events, often featuring commentary from local meteorologists who can interpret the radar data in real-time. * **Mobile Weather Apps:** Many free and paid applications display the KMRX radar feed with GPS overlays, allowing you to track your exact location relative to approaching storms. * **NOAA Weather Radio:** During power outages or internet disruptions, a battery-powered NOAA weather radio receives emergency broadcasts and alerts directly from the NWS. ## Verifying Radar Information Radar data can sometimes experience delays or anomalies, such as ground clutter or beam blockage due to the mountainous terrain of East Tennessee. To ensure accuracy: * Cross-reference radar images with official NWS watches, warnings, and advisories. * Monitor local storm reports to confirm what is actually hitting the ground. * Never rely solely on radar images to make safety decisions; always prioritize active weather warnings issued for Sullivan County and the surrounding areas.