Data collected using Doppler radar polarimeteric technology are objectively analyzed by complex precipitation algorithms to produce very accurate estimates of accumulated precipitation at each grid point. For your convenience, these high-resolution data are displayed on Google Maps so you can pan and zoom. The Google Map is also clickable to reveal the exact estimate at any given point. Our maps will display on any mobile device, including smartphones and tablets, though you may notice a better visual presentation and optimal performance from a desktop computer.
Click anywhere on the map for a rainfall estimate.
Note: The 48-hour and 72-hour precipitation accumulation maps are updated once daily, whereas the hourly to 24-hour maps are updated hourly. Snow Accumulation Map