![]() ![]() 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. Petersburg, Clearwater, Brandon, and Plant City. Hail is a good reflector of energy and will return very high dBZ values. from SUN 4:00 PM EST until MON 1:00 PM EST, Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM, Tampa Bay waters, Coastal waters from Englewood to Tarpon Springs FL out 20 NM Animated radar view of the Tampa Bay area, including the communities of Tampa, St. These values are estimates of the rainfall per hour, updated each volume scan, with rainfall accumulated over time. Tornado warnings were issued in several counties. 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. (WFLA) Storms caused severe damage in parts of the Tampa Bay area overnight. 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. 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). Hide Caption Click a location below for detailed forecast. One scale (far left) represents dBZ values when the radar is in clear air mode (dBZ values from -28 to +28). Today Tonight Tomorrow Climate Today Clear and dry with highs in the upper 60s to mid 70s. Each reflectivity image you see includes one of two color scales. The dBZ values increase as the strength of the signal returned to the radar increases. 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). Map time: Tue 11:18:39 GMT-0800 (Pacific Standard Time) Weather Underground’s WunderMap provides interactive weather and radar Maps for weather conditions for locations worldwide. The interactive map makes it easy to navigate around. "Reflectivity" is the amount of transmitted power returned to the radar receiver. See the latest Tampa, FL RealVue weather satellite map, showing a realistic view of Tampa, FL from space, as taken from weather satellites. The colors are the different echo intensities (reflectivity) measured in dBZ (decibels of Z) during each elevation scan.
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