• Thumbnail for Hook echo
    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...
    12 KB (1,331 words) - 23:12, 24 May 2025
  • Thumbnail for Rear flank downdraft
    flank downdraft often shows up brightly as a hook on weather radar images, producing the characteristic hook echo, which often indicates the presence of a...
    9 KB (1,036 words) - 01:11, 28 September 2024
  • Thumbnail for Supercell
    around the north and northwest side of the updraft base, producing a "hook echo" that indicates the presence of a mesocyclone. This "dome" feature appears...
    55 KB (6,725 words) - 20:20, 27 May 2025
  • Thumbnail for Line echo wave pattern
    serial derecho has developed or is likely to develop soon, much as a hook echo indicates the same for a tornado. A LEWP, according to the NWS, is defined...
    4 KB (418 words) - 16:57, 22 May 2024
  • Thumbnail for Tornado
    radar by recognizing patterns in velocity and reflectivity data, such as hook echoes or debris balls, as well as through the efforts of storm spotters. There...
    119 KB (12,560 words) - 04:29, 25 May 2025
  • Thumbnail for 1953 Waco tornado
    detected a hook echo in association with the parent supercell. This was one of the first times that radar linked tornadogenesis with hook-echo signatures...
    13 KB (1,311 words) - 07:44, 24 May 2025
  • Thumbnail for Convective storm detection
    watches and convective outlooks in 1952. In 1953 it was confirmed that hook echoes are associated with tornadoes. By recognizing these radar signatures...
    36 KB (4,280 words) - 06:13, 25 January 2025
  • Thumbnail for 2013 Moore tornado
    tornado debris signature one mile in diameter within the accompanying hook echo, as the tornado crossed into portions of south Oklahoma City in northern...
    82 KB (7,808 words) - 03:42, 24 May 2025
  • Thumbnail for Bow echo
    storm detection Derecho Gustnado Hook echo Mesoscale convective system Outflow boundary Rear-inflow jet Tornado Bow Echo Prototype Klimowski, Brian A.;...
    9 KB (977 words) - 21:51, 10 February 2025
  • Thumbnail for Descending reflectivity core
    descent of DRCs has been associated with the formation and evolution of hook echoes, a key radar signature of supercells, suggesting a complex interplay...
    15 KB (1,675 words) - 03:29, 26 March 2025
  • Thumbnail for 2011 Super Outbreak
    NWS Service Assessment Archived June 1, 2020, at the Wayback Machine HookEcho.com Tornado Outbreak Overview Archived May 3, 2011, at the Wayback Machine...
    210 KB (20,393 words) - 18:58, 30 May 2025
  • Look up hook in Wiktionary, the free dictionary. A hook is a tool with a curved end. Hook may also refer to: Hook#Variations for similar tools Hook hand...
    5 KB (705 words) - 20:59, 27 March 2025
  • Thumbnail for Greensburg tornado
    associated with a parent supercell. Several minutes later, a bounded weak echo region (BWER) was present on radar, located on the supercell's northern flank...
    99 KB (10,033 words) - 17:52, 29 May 2025
  • Thumbnail for Tornado debris signature
    typical debris ball shown as an area of high reflectivity on the end of the hook echo of the parent supercell of the 2011 Joplin tornado co-located with a velocity...
    8 KB (734 words) - 17:37, 25 May 2025
  • Thumbnail for Lubbock tornado
    (4.8 km) east of the city limits. This, along with the detection of a hook echo on radar, prompted the Lubbock Weather Bureau office to issue a tornado...
    43 KB (5,437 words) - 02:28, 20 May 2025
  • Thumbnail for Joplin tornado
    A radar image of the supercell that produced the tornado shows both a distinctive "hook echo" (left) and an impressive velocity signature (right)....
    85 KB (8,518 words) - 21:03, 30 May 2025
  • Thumbnail for 1974 Xenia tornado
    tornado, broadcasting the radar image of the supercell with a pronounced hook echo on the rear flank of the storm several minutes before it struck. The storm...
    23 KB (2,444 words) - 00:35, 26 May 2025
  • Thumbnail for 2011 Smithville tornado
    off its foundation in Smithville, radar image showing the supercell and hook echo of the storm that produced the Smithville tornado, with a debris ball...
    25 KB (2,834 words) - 06:58, 28 May 2025
  • technology being less developed than now, the storm had a well defined hook echo on radar imagery, a signature often correlated with tornadic supercells...
    27 KB (3,188 words) - 03:21, 24 May 2025
  • Thumbnail for 2024 Barnsdall–Bartlesville tornado
    near Barnsdall, where it produced EF4-rated damage to homes. Bottom: The hook echo of the tornado seen on NEXRAD radar as it moved through Barnsdall and...
    24 KB (2,165 words) - 20:14, 12 May 2025
  • Jim (April 9, 2015). "On this Date in 1953, First Documented Tornado Hook Echo Captured on Radar". Illinois State Climatologist. Retrieved March 29,...
    39 KB (1,350 words) - 22:23, 6 May 2025
  • Thumbnail for 2011 El Reno–Piedmont tornado
    the newer mesocyclone coalesced, and the radar detection of a bounded weak echo region within the storm indicated that its updraft intensified during this...
    49 KB (5,022 words) - 00:12, 16 May 2025
  • Thumbnail for 2009 Goshen County tornado
    doppler weather radar. By the time all of the instruments were set up, the hook echo of the supercell was located 21 miles (34 km) to the southwest. The Doppler...
    8 KB (743 words) - 23:27, 3 May 2025
  • Thumbnail for 1953 Waco tornado outbreak
    advances in understanding the link between tornadoes and radar-detected hook echoes. It also generated support for improved civil defense systems, the formation...
    52 KB (2,614 words) - 03:11, 24 May 2025
  • tornadoes. It was with those data he confirmed in a 1981 article that the hook echo is an excellent clue on a weather radar for the development of tornadoes...
    7 KB (626 words) - 02:26, 3 August 2024
  • Thumbnail for Tornado vortex signature
    the advent of dual-polarization. Convective storm detection Hook echo Bounded weak echo region (BWER) Warning Decision Training Branch, Cooperative Institute...
    7 KB (717 words) - 16:01, 4 March 2025
  • Thumbnail for 2025 St. Louis tornado
    shortly after touching down as seen on WSR-88D reflectivity and velocity, exhibiting a hook echo, tornado vortex signature, and tornado debris signature...
    24 KB (2,530 words) - 00:06, 29 May 2025
  • Thumbnail for Mesocyclone
    form in the front flank of squall lines), and may be distinguished by a hook echo rotation signature on a weather radar map. Visual cues such as a rotating...
    20 KB (2,372 words) - 07:20, 26 April 2025
  • Thumbnail for 1995 Mayfest Storm
    moved into southeastern Parker County, it exhibited a hook echo and a pronounced bounded weak echo region on weather radar imagery. Hail began to fall from...
    17 KB (1,971 words) - 03:22, 24 May 2025
  • Hook is a 1991 American fantasy adventure film directed by Steven Spielberg and written by James V. Hart and Malia Scotch Marmo. It stars Robin Williams...
    51 KB (4,894 words) - 07:16, 30 May 2025