As we saw spring type storms move through the area, we learned that Tulsa is in the process of installing new tornado sirens.
The ones targeted to be upgraded date back to the mid 1980's.
"The new sirens are what we call omnidirectional and so they have fewer moving parts and the advantage of modern technology and they will push the signal out about 6,200 feet or a little over a mile where the other ones were about a mile,” says Tulsa County Emergency Management Director Roger Jolliff.
"You've got to take one down to put another one up but again they are trying to keep that window very narrow so we can get the sirens back up and be at 100%. This is something that we have been very conscientious about for a long time," says Jolliff.
Crews are replacing 60 of the 87 sirens and doing it in three phases.