Short Simple Video on Nat'l Weather Service's New "Dual-Pol Radar" - how it benefits YOU

All National Weather Service offices in the U.S. will upgrade their Doppler radar to dual-polarization radar. Here’s why that will provide better forecasts. 
1) With the dual-pol upgrade, meteorologists will be able to transmit and receive information in both horizontally and vertically in the atmosphere.
2) These upgrades will improve the accuracy and identification of precipitation types, precipitation estimates, and even be able to view tornadoes better.
3) These upgrades will continue across the United States and all offices should have the dual polarization technology installed by May 2013.

Credit: EARTH and SKY.com: http://earthsky.org/earth/nws-upgrades-to-dual-polarization-radar-for-better-look-at-precipitation-tornadoes