Yep, I can attest to all of that. Being north of the beltway and west of 83 really helps in a lot of marginal storms, especially above 500 ft. Owings Mills and Reisterstown are generally in the same boat as me, with the latter being slightly better. It's a great climo for someone who doesn't want to be too far from the city.
Anyways, this is looking like a solid event for the northern and northwest burbs. Maybe the highest of the season for some of us if we can break 5".