Using cell-based VIL density to identify severe-hail thunderstorms in the central Appalachians and middle Ohio Valley

Details

• Alternative Title:
  Using cell-based vertically integrated liquid density to identify severe-hail thunderstorms in the central Appalachians and middle Ohio Valley
• Personal Author:
  Belk, Nicole M. ; Wilson, Lyle D.
• Corporate Authors:
  United States, National Weather Service,
• NOAA Program & Office:
  NWS (National Weather Service) ; ER (Eastern Region)
• Description:
  "Vertically integrated liquid (VIL) as an indicator of thunderstorm severity has been studied by researchers since the early 1970s (Greene and Clark 1972). With the arrival of the WSR-88D radar, VIL became operationally available at offices with warning responsibility as a tool for gauging the potential severity of thunderstorms. VIL density has also been shown to be useful in efforts to identify thunderstorms that have a high potential for producing severe hail (Troutman and Rose 1997, Amburn and Wolf 1997). However, for severe hail producing thunderstorms, a threshold VIL density was shown to be more consistent from season to season, and day to day than a threshold VIL (Amburn and Wolf 1997). A threshold VIL density that could be used operationally at NWSFO Charleston WV was desired. However, previous studies done in different geographical areas have shown some variation in specific threshold grid-based VIL density values, with positive but differing amounts of success. With this in mind, a local study of VIL density was undertaken at the National Weather Service Forecast Office (NWSFO) Charleston WV, using data from the KRLX WSR-88D located in Ruthdale, 6 miles south of Charleston"--Introduction.
• Content Notes:
  Nicole M. Belk and Lyle D. Wilson.
  
  "October, 1998."
  
  System requirements: Adobe Acrobat Reader.
  
  Includes bibliographical references (page 5).
  
  
• Keywords:
  Forecasting Hail Hailstorms Methodology Radar Meteorology Severe Storms Weather Forecasting Radar Meteorology Severe Storms Weather Forecasting
• Series:
  Eastern Region technical attachment (National Weather Service (U.S.))   no. 1998-09
• Document Type:
  Technical Attachment
• Place as Subject:
  Ohio River Valley ; Appalachian Mountains
• Rights Information:
  Public Domain
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:0f7f2d9d876be9b1a9a33fa3a5dcba0178361e97c5e52f7c280f1c0ae2a09969
• Download URL:
  https://repository.library.noaa.gov/view/noaa/6685/noaa_6685_DS1.pdf
• File Type:
  [PDF - 136.95 KB ]