Please consult your device documentation for instructions. On mobile devices, you can save the bookmark as an easy-access icon similar to other apps. View Normal Image Size Street Level Radar National Radar 2 U.S. For example, if you select "Weather for a location," then select a location, the bookmark will return to your location on your next visit. United States Extra High Resolution Doppler Radar Loop. You may bookmark the URL to return later to the same view with the selected settings. Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities Paducah Weather Radar Now Rain Snow Ice Mix United States Weather Radar Kentucky Weather Radar More Maps Radar. The URL will automatically update as you select the view and settings. Image is what it can look like when there is no precipitation but significant ground clutter. Subtract 7 hours to get PDT and 8 hours to get PST. This view is similar to a radar application on a phone that provides radar, current weather, alerts and the forecast for a location. Slower loading but features more detail and capabilities. This view combines radar station products into a single layer called a mosaic and storm based alerts. This view provides specific radar products for a selected radar station and storm based alerts. 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.This site is organized into views that provide relevant radar products and weather information for a common task or goal. 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. 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. 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). 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. National Oceanic and Atmospheric Administration National Weather Service Honolulu, HI 2525 Correa Rd Suite 250 Honolulu. These dopplar radars give the National Weather Service Forecast Office in Honolulu both reflectivity and velocity data about storms affecting the area. The dBZ values increase as the strength of the signal returned to the radar increases. One each on Kauai and Molokai, and two on the Big Island of Hawaii. 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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