NOAA NWS DOC Skip Naviagation Links



The U.S. government is closed. However, because the information this website provides is necessary to protect life and property, this site will be updated and maintained during the federal government shutdown. For the latest forecasts and weather information, visit weather.gov. To learn more, visit commerce.gov/news/blog.

DCUSND Versions

Version 1.2 Changes

  • changed source code to reflect changes in underlying NAWIPS software.

Version 1.3 Changes

  • added logic to recover properly when wind group is missing from tropopause data section
  • changed source code to reflect changes in underlying NAWIPS software.

Version 1.4 Changes

  • removed obsolete call to uerror from dcusnd.c
  • modified uahylv.f to check heights of certain neighboring levels before using in computation of height value.

Version 1.5 Changes

  • replaced old cloud base height mnemonic CBAS with HBLCS and replaced rivals array element cbas with hblc
  • replaced variable wspdu with rivals array element tiwm (type of instrument for wind measurement)
  • in uaprht.f, changed height range for 700 mb
  • in uastid.f, changed to allow up to 8 characters in station ID
  • in uarpd1.f, added code to decode '51515' regional practice data only if found in Part B of a Region 6 report
  • in ua101g.f and uadtac.f, commented out call to uahyck.f.

Version 1.6 Changes

  • updated land and ship station tables

Page last modified: 10 March 2025.