It is a glitch, I've reset it now. For the last few months the station here has been giving false readings when the wind gets over 50 knots, hopefully we will get it sorted soon. The true value would be more like 55-60 knots in the gusts, we had about 10 minutes of strong wind. Its dropped back down now but still gusting to 40 knots. Pressure down to 982.2 mb, still dropping.