Strong March winds have caused the National Weather Service to issue red flag warnings for the western half of the state due to high fire danger, a meteorlogist in Norman said. The wind in the Oklahoma City area is expected to increase after noon, said Christine Riley, meteorologist in Norman. Three elements make conditions dangerous for wildfires: low humidity, temperatures at 64 degrees or higher and strong wind. The temperature in Oklahoma City was 61 degeres at 11 a.m.