NWS Louisville Reflectivity Cross-Section April 7, 2006

River Flooding Continues in East Florida; Rain and Thunderstorms from the Mid-Atlantic to the Northeast Thursday; Heavy Rain in Puerto Rico

Significant river flooding is forecast along the St. John’s and the Peace rivers through the end of the week as flood waters will be slow to recede. Periods of rainfall and thunderstorms are expected across the Lower Great Lakes, Central Appalachians, Mid-Atlantic and Northeast Thursday and Friday. In Puerto Rico, increased moisture in the Atlantic will produce heavy rainfall for the island. Read More >

NWS Doppler Radar (WSR-88D) Example Products

The image shows a reflectivity cross-section of a supercell thunderstorm on April 7, 2006 from the NWS Louisville Doppler radar. The storm is over 40,000 feet tall. It has a large core of very heavy rain and hail (red and pink colors) within it. A bounded weak echo region (BWER), which denotes the location of the storm's rotating updraft (mesocyclone), is evident. The anvil of the storm is located to the right of the main updraft core aloft, where lighter precipitation and ice crystals are located. A much weaker, smaller thunderstorm is located just to the left of the supercell.