This example is from a shallow supercell case. The cell exhibited weak but grdually increasing Vrot, but Vrot was generally less than 30 knots. AzShear (pictured) and TORP were useful in capturing the uptick in rotational intensity. The decision to issue a tornado warning was made around or just prior to 2215z (but AWIPS hiccups prevented it from going out until closer to 2225z). The decision to warn was aided by a rotational signature in AvShear (the image below is from 2228z, not the time that aided warning decision) and TORP increasing to between 40-50%. A tornado was reported around 2230z.

-Orange Lightning