Case Study

24-Hour Dual-Pol Rainfall Accumulations


WOWK_072413_FFW_edWOWK_072413rlx_12hour_edThere’s been a lot of attention paid to the use of dual-pol radar returns during severe weather conditions to identify debris signatures and significant shear. But there is another extremely useful application for the dual-pol data. Now, with the ability to identify different types of hydrometeors, it’s possible to estimate precipitation accumulation with more precision than ever before.

Baron customer station WOWK-TV in Charleston, WV experienced significant flooding in the summer of 2013. During their coverage on July 24, 2013 they cross-referenced their results from the Baron-derived dual-pol 6-hour and 12-hour accumulations data pWOWK_072413rlx_6hour_ed_0roducts with actual rain gauge measurements in the area. They were astounded to discover how close the dual-pol radar results were to true ground conditions. Bryan Hughes, a meteorologist at WOWK, was

extremely impressed. “It was amazing to see how well the dual-pol products verified. Some of the locations are in very rural areas with minimal sensor coverage. But the dual-pol returns verified with all the sensors almost perfectly.”