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New Severe Weather Tracking Layer

by Rory Groves        April 30, 2010  |  9:33 am  |  Category: Latest News | Tips & Tricks

A new layer based on the Mesocyclone Detection Algorithm (MDA) was released today. Mesocyclones indicate areas of rotation inside a thunderstorm, which can be precursors to Wall Clouds and Tornadoes.


This freely available layer to all registered Weather Defender customers provides the following benefits:

  • More accurate and frequent updates concerning rotation inside thunderstorms (precursors to tornadoes)
  • Detailed information about the strength, dimension, and movement of each circulation
  • Historical and future tracks of the circulation for long-lived mesocyclones

Here's how to add this new layer to your map:

1.   Unlock your map by clicking the padlock icon in the upper-right of the Map Layers window
2.   On the main toolbar, click Map > Add Layer
3.   In the Layer Browser, click the Severe Weather category
4.   Find the layer labeled "Meso (MDA)" and click Add To Map



" invaluable resource" for extreme weather

by Rory Groves        January 4, 2010  |  9:59 am  |  Category: Testimonials

"I concur with these testimonials. this year has been the exception as opposed to the norm with respect to weather in Kentucky. When weather events affecting public welfare have occurred they have been on the extreme side whether flooding in August and September or just the past week an EF 2 tornado in Casey County. Weather Defender has been an invaluable resource in bringing all aspects of the dynamic weather picture together to present an ongoing assessment of potentially dangerous weather situations."

Chuck Danison
Shelbyville, Kentucky

Perryville resident protects friends & family outside the range of Tornado Sirens

by Rory Groves        November 23, 2009  |  4:04 pm  |  Category: Testimonials

"We've had 2 tornadoes near Perryville in the last 3-4 years that have impacted many people we've known.  This includes killing 2 people that my wife and I both worked with for many years....  [in another situation] the grandmother of a friend of mine was living in a town that I could see was in the path of a tornado I was tracking in the Weather Defender (confirmed by Local Storm Reports).  She lived in a trailer and was not in an area where sirens were sounded or could be heard.  I called my friend and told her that a tornado was headed for the area in which her grandmother lived and she called her grandmother.  She was able to get out of the trailer and to a safer location.  Fortunately,  the tornado was not on the ground long enough to get to her place, but my call was 15-20 minutes before it would've gotten there.   Fifteen to twenty minutes may not sound like much, but it can mean the difference between life and death when a tornado is in the area.  They were very grateful for my call.

Jamie Robinson
Perryville, Missouri


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