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. The KSAT 12 News Team provides a look at local, regional, statewide and national news events and the latest information on local traffic and weather issues. 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. Additionally, simulated radar is derived from numerical models, and the output may differ from human-derived forecasts. Typically, light rain is occurring when the dBZ value reaches 20. Note: Radar products are designed for optimal performance on modern desktop and mobile browsers, such as Firefox and Chrome. 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. Notice the color on each scale remains the same in both operational modes, only the values change. 104° 78° Precipitation: 0 Wind: 4 mph S Humidity: 58 UV Index: Very High Change Location 7 Day Forecast 0 Interactive Radar Latest Weathercast 0 seconds of 0 secondsVolume 90 00:00 LATEST. The other scale (near left) represents dBZ values when the radar is in precipitation mode (dBZ values from 5 to 75). 80° Cloudy Day 101° Night 77° Excessive Heat Warning San Antonio, TX Forecast Today Hourly Daily Morning 85° 1 Afternoon 97° 2 Evening 89° 12 Overnight 79° 11 Dont Miss Watch: CO. One scale (far left) represents dBZ values when the radar is in clear air mode (dBZ values from -28 to +28). Each reflectivity image you see includes one of two color scales. Weather forecast and conditions for San Antonio, Texas and surrounding areas. The dBZ values increase as the strength of the signal returned to the radar increases. local weather forecast for cities including radar reports and hurricane. So, a more convenient number for calculations and comparison, a decibel (or logarithmic) scale (dBZ), is used. Up to date weather coverage from ABC TVs local affiliate in San Antonio, Texas. Reflectivity (designated by the letter Z) covers a wide range of signals (from very weak to very strong). Hourly 10 Day Radar Severe Canyon Lake, TX Radar Map Rain Frz Rain Mix Snow Canyon Lake, TX Heat Advisory from THU 8:00 PM CDT until FRI 8:00 PM CDT. "Reflectivity" is the amount of transmitted power returned to the radar receiver. Forecast Office located in New Braunfels, Texas, was formerly the San Antonio office. Put our free WeatherStreet weather lookup on your web page.The colors are the different echo intensities (reflectivity) measured in dBZ (decibels of Z) during each elevation scan. The recent installation of the doppler weather radar in Taunton. SAN ANTONIO, TX extended weather forecast SAN ANTONIO, TX 3 hourly weather forecast Highest heat index readings up to 105 early in the evening. Highest heat index readings up to 110.Ĭlear, hot. Partly cloudy in the morning, then clearing. Highest heat index readings up to 110 early in the evening. Partly cloudy in the evening, then becoming mostly cloudy. Mostly cloudy in the morning, then clearing. Highest heat index readings up to 107 early in the evening. Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy after midnight. San Angelo Weather Weather Conditions and Forecast San Antonio. Highest heat index readings up to 109 this afternoon. KSJT Radar Station Based in San Angelo, Texas with Live NexRad Doppler Radar for the San. A slight chance of thunderstorms this afternoon. Partly cloudy this morning, then clearing. 78201 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
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