Hadn't thought of that. Just checked the data from my weather station, and there's a definite spike, followed by a drop. 30.16 inHg just before, 30.19 spike fo

Hadn't thought of that. Just checked the data from my weather station, and there's a definite spike, followed by a drop. 30.16 inHg just before, 30.19 spike followed by an immediate drop to 30.14, then basically normalized again.