Aaron Kennedy EF5. Storm spotters have been trained to recognize tornado conditions and report what they see to the National Weather Service. This is one of the more frightening tornado signatures on radar. I've included Skip Talbot's reply below to the original question, as it clearly explains what you're seeing in the signature. But it does help to pinpoint the exact location of the vortex in relation to the rest of the hook structure of this storm. In another life, I might have studied this more and made a career out of it. The mile long Westfield to Charlton tornado has joined the pantheon of significant New England tornadoes that includes the Worcester tornado, Hamden tornado, and Windsor Locks tornado. We just had a few minutes of really intense wind, and wondered if what I saw approaching my area would look like anything here.
Satellite images Hook echoes, debris and damage
debris ball shown as an area of high reflectivity on the end of the hook echo of the parent supercell of the Joplin tornado co-located with a velocity couplet on the right. A tornadic debris signature (TDS), often colloquially referred to as a debris ball, is an area of. A hook echo is a pendant or hook-shaped weather radar signature as part of some supercell thunderstorms. It is found in the lower portions of a storm as air and precipitation flow into a mesocyclone resulting in a curved feature of reflectivity.
The echo is produced by rain, hail, or even debris being wrapped around the surface may be detected as a "debris ball" on the end of the hook.
Severe Weather Tornado Detection
Are you comfortable with looking at RadarScope data and finding hook echoes and areas of rotation? If so, the next step is to learn how to use.
Welcome to Reddit, the front page of the internet. Brooks in . HP supercells instead often have a high reflectivity pendent or front flank notch FFNappearing like a "kidney bean" shape.
Hi Joni, glad you found the information useful and easy to understand! Nov 28, 1, 0 5 55 Overland Park KS vortex-times.
Posted: Mar 4, Here's the WxUnderground "WxUndermap" image from pm showing the classic "hook echo" and "debris ball" just west of Moore as the.
Top Bottom. The right shows a clear base velocity couplet of greens and reds right next to each other and strong rotation in the storm. A mesocylconic tornado can spawn north of the hook in an area with no radar reflectivity I think this is more common actually or even further north of there in the precip core, or back inside of the hook like in many HP's.
Phased array technology can scan an entire storm in less than one minute, allowing forecasters to see signs of developing tornadoes well ahead of current radar technology. Debris balls are seen on radar reflectivity images as a small, roundish area of high reflectivity values.