Chase Log: June 14th, 2007
Click on any of the SPC products below (Convective Outlooks, Watches, or MCDs) to see the SPC's "Severe Thunderstorm Events" page pertaining to this event.
Total Distance: 200 miles
Target Area: Near Lawton, OK
Chase Area: Near Cyril, OK
Maximum SPC Risk category: Slight
Watches:
Mesoscale Discussions (MCDs):
Marginal, marginal, marginal. Flow at all levels was leak, but there was some decent directional shear north of an outflow boundary that stalled near the Red River. Though most parameters were weaker this day compared to the previous, including CAPE and shear, I still held out a little hope for a non-supercell tornado threat owing to the presence of low-level CAPE (>150 j/kg 0-3km CAPE) and low-level vorticity in vicinity of a weak surface low S of Lawton and a couple of outflow boundaries.
Cells developed near the outflow boundary, but it was very evident that the shear was just too weak for an organized severe threat. A funnel cloud was apparently reported with a storm near Lawton, but, by the time we got a good view of it southwest of Chickasha, it was quite outflow-dominant. We watched the storms for about 15 minutes, then decided it was a lost cause. More storms developed across much of the area, and we did see a couple of interesting lowerings with storms closer to Norman. Overall, though, it played it pretty close to what we were expecting, which was pretty much nothing. Perhaps we were a little aggressive in chasing this day, but it was relatively close to home and there did seem to be a non-supercell tornado threat.
