This is only anecdotal, but one thing I've learned over the last decade is that I need to pay attention to even the "marginal" hatches. I've actually logged the 5 most destructive thunderstorms that have hit my location - these are storms that have damaged or impacted my property in some way (severe/moderate i.e trees down, power line on the ground, home damage etc.).
4 of those storms occured under "marginal" threat hatches for my area, 2 of which accompanied cells that had tornado warning criteria at some point (either before, during or after impacting my property).
I've learned to keep an eye on anything within those risk hatches regardless of risk percentages. I will certainly be watching this closely.