Since hail can cause the rainfall estimates to be higher than what is actually occurring, steps are taken to prevent these high dBZ values from being converted to rainfall. Hail is a good reflector of energy and will return very high dBZ values. These values are estimates of the rainfall per hour, updated each volume scan, with rainfall accumulated over time. Updated: moments ago Lake Charles, LA (KPLC) -Unsettled weather continues this week across SWLA, morning lows in the low 70s and abundant humidity has conditions ripe for more morning showers and even a few storms. Depending on the type of weather occurring and the area of the U.S., forecasters use a set of rainrates which are associated to the dBZ values. The higher the dBZ, the stronger the rainrate. Typically, light rain is occurring when the dBZ value reaches 20. The scale of dBZ values is also related to the intensity of rainfall. The value of the dBZ depends upon the mode the radar is in at the time the image was created. Large hail rained down on SWLA earlier today. Notice the color on each scale remains the same in both operational modes, only the values change. The other scale (near left) represents dBZ values when the radar is in precipitation mode (dBZ values from 5 to 75). Get live reports, GPS maps and daily updates on current temperature, sun, wind speed and. One scale (far left) represents dBZ values when the radar is in clear air mode (dBZ values from -28 to +28). AccuWeather: Daily Forecast & Live Weather Maps. Each reflectivity image you see includes one of two color scales. Its studios are located in downtown Lake Cha. ![]() The dBZ values increase as the strength of the signal returned to the radar increases. Live TV KPLC Now Playing: 7News Sunrise (On Demand) Originally Aired Today at 2:30 AM A comprehensive first look at local, statewide and national news events is provided by the 7News Morning Team, along with the latest updates on stories and issues that affect the region and up-to-the-minute reports on weather and traffic. Lake Charles, LA current today tonight 73 F C Cloudy Pressure 29. KPLC, is an NBC-affiliated television station located in Lake Charles, Louisiana. So, a more convenient number for calculations and comparison, a decibel (or logarithmic) scale (dBZ), is used. Reflectivity (designated by the letter Z) covers a wide range of signals (from very weak to very strong). "Reflectivity" is the amount of transmitted power returned to the radar receiver. ![]() The colors are the different echo intensities (reflectivity) measured in dBZ (decibels of Z) during each elevation scan.
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