The NOWRAD Radar Summary
maps are meant to help you track storms
more quickly and accurately. These maps consist of echo top heights, cell movement indicators, tornado and severe thunderstorm watch boxes
, and the NEXRAD
Storm Table information overlaid onto the mosaic radar imagery
. The radar summary
graphics display cell movement and direction by arrows, with speed in knots
, and the echo top heights in hundreds of feet. An 'NA' on the chart indicates that the radar report
from that station was 'Not Available', and 'NE' shows that the radar
was seeing 'No Echos'. Severe weather watch boxes
are also plotted - red boxes indicate a Tornado Watch has been issued for the area, and a blue box indicates a Severe Thunderstorm Watch
is in effect for the area.
storm Table data includes the following criteria:
algorithms detect a three dimensional rotating section of a storm that is an indicator of severe weather
Tornadic vortex signature (TVS)
Potential tornadic activity is detected by the NEXRAD
algorithms within the mesocyclone.
algorithms are detecting the probability of hail within the storm.
Hook Echo (HOOK)
The radar observation
(ROBs) is detecting a hook echo, which is an indicator for potential tornadoes.
and tornado watches issued by the Storm Prediction Center in Norman, OK.