NORMAN — Recently, I sat down with David Andra, Scott Curl and Chris Sohl, three meteorologists at the National Weather Service’s Norman forecast office who were among those working during the tornado outbreak May 3, 1999.
I asked them what were the differences in technology from when you started at the weather service until May 3, 1999? What helped you do your job that day?
A new system
Andra, the science and operations officer, marks 22 years at the weather service next month.
"There were two critical pieces of technology developed between when I started and May 3, 1999,” he said.
One was the Doppler radar, installed across the nation by the National Weather Service in the 1980s and early 1990s.
Second, the Advanced Weather Interactive Processing System, which processes virtually all information they use in making forecasting and warning decisions.
The really interesting part is that this system was introduced into
the Norman office in
late 1997, so they were still "working out
One of those "bugs” was a problem of keeping radar information fresh, Andra said.
It wasn’t updating as quick as it should have.
"So we did a lot of work with developers in the days leading up to May 3 to fix those things not knowing what was just ahead,” Andra said.
"Everything worked very well that day. Everything worked as it should.”
Not only quality but quantity was an issue.
Gained on a DARE
Andra said that before the Advanced Weather Interactive Processing System, or AWIPS, the Norman office had one workstation.
That would have made things difficult on May 3, 1999, with dozens of tornadoes. Instead, there were six stations, and four were dedicated to warnings.