NWS Doppler Radar SRM 4-Panel March 2, 2012

Severe Weather and Heavy Rainfall from the High Plains to the Ohio Valley; Heat Continuing in the Central Plains and Southeast

A stationary front will be the focus for daily showers and thunderstorms capable of widely scattered flash flooding and severe weather from the High Plains to the Ohio Valley. Monsoonal thunderstorms could cause local flash flooding across the Southwest and the Great Basin. Dangerous heat continues across the Central Plains and Southeast. Many areas will see their hottest temperatures of the year. Read More >

NWS Doppler Radar (WSR-88D) Example Products

A 4-panel of storm-relative motion (SRM) velocity data at 4 different elevation angles from the KLVX WSR-88D Doppler Radar. SRM data depicts estimated velocity values relative to entities moving through their environment (e.g., the wind a thunderstorm "feels" as it moves). Green (red) colors depict winds moving toward (away from) the radar location (at Ft. Knox for KLVX radar).

At left is a 4-panel SRM display that matches the 4-panel reflectivity display on the sample Doppler radar data page from the tornadic supercell thunderstorm over south-central Indiana on March 2, 2012. In the top left panel, a tight, strong, cyclonic (counterclockwise) rotational couplet (low-level mesocyclone) is evident in northwest Clark County where an EF3-EF4 tornado occurred. Higher up in the storm, SRM showed a deep-layered mesocyclone (top right, bottom right), with storm-top divergence at lower left.