Quincy Vagell
EF4
As others have echoed, if we're looking at the second half of May (which is climatologically favored to be at/near prime chase season), I'd give a slight edge to Denver. Eastern Colorado/western Kansas perform quite regularly this time of the year and access to I-70/I-135 can get you east and south across Kansas fairly quickly. The OK/TX panhandles aren't far away either and they tend to light up around this time as well. Late May is also when the northeastern Colorado upslope period really starts to heat up, as some years will have a lot of activity only a couple of hours away from Denver.
Dallas isn't a bad option either, especially if we're talking about early to mid-May. The issue with Dallas is traffic and that if a target area is in the central Plains, you're going to have to drive several hours to get into position. The other problem with the first half of May is that down periods are more likely, even if that is when North Texas/southern Oklahoma tends to peak with tornado threats. While in Dallas, you'll almost always have to go north to chase, but while in Denver, you may go east, southeast or even north/northeast.
This may not be an option for the OP, but others who may be debating, a larger hub that often gets overlooked in Kansas City. Sure, it's a better option if you're looking to chase between the last week of May and any time in June, rather than earlier in the season, but it seems to be fairly reasonable with prices for flights. Geographically, it's in a prime location if you're chasing in late spring, being only a few hours of most parts of Kansas/Missouri/Nebraska/Iowa. Like the other two cities, there is a lot to due around Kansas City as well, from sporting events to breweries, dining, etc., where there is downtime.
Dallas isn't a bad option either, especially if we're talking about early to mid-May. The issue with Dallas is traffic and that if a target area is in the central Plains, you're going to have to drive several hours to get into position. The other problem with the first half of May is that down periods are more likely, even if that is when North Texas/southern Oklahoma tends to peak with tornado threats. While in Dallas, you'll almost always have to go north to chase, but while in Denver, you may go east, southeast or even north/northeast.
This may not be an option for the OP, but others who may be debating, a larger hub that often gets overlooked in Kansas City. Sure, it's a better option if you're looking to chase between the last week of May and any time in June, rather than earlier in the season, but it seems to be fairly reasonable with prices for flights. Geographically, it's in a prime location if you're chasing in late spring, being only a few hours of most parts of Kansas/Missouri/Nebraska/Iowa. Like the other two cities, there is a lot to due around Kansas City as well, from sporting events to breweries, dining, etc., where there is downtime.