Mercer County WV Severe Thundestorm Warning - Prob Severe Quick Jump!

I issued a Severe Thunderstorm Warning for Mercer County WV, due to a combination of increasing high reflectivity aloft, as well as the Prob Severe model showing a quick jump from 26% at 2031 UTC to 63% at 2034 UTC. These values were not high, but the jump combined with the high reflectivity aloft lead me to issue the warning. The warning was issued at 2039 UTC. Update: 1.75" hail was reported in Mercer County at 2040 UTC. Not much lead time on that storm. JJW