June 6th Nebraska Supercells

Nov 30, 2015

Summary:

Chased some supercells that went up too close together to produce any real significant severe weather, but did capture a brief funnel cloud.

Stats:

Tornadoes: 0
Hail: 1.00″ (quarter)
Wind: n/a

The Forecast:

Slowly advancing surface low, lifting warm front with moderate amounts of shear. Cap forecast to be weak meaning initiation could be early with numerous storms firing. Ample clearing would lead to sufficient CAPE values to promote potential significant severe weather with the shear in place.  An outflow boundary from earlier storms would also focus to enhance shear in a localized area. SPC upgraded to enhanced tornado probabilities in the area where CAPE was maximized with shear, and storm coverage would presumably be greatest.
spc20150606

Detailed Account:

Still high on the previous days chase, it was time for me to head back east towards home along with the advancing weather system. This chase originally presented marginal potential, but being somewhat on the way home I always intended to give it a shot. Things began to favorably come together for a bigger day, and with the SPC upgrade to a 10-hatched, excitement was in full swing for potentially another day of tornadoes. We made good time arriving in our target town of Stafford, NE. We did not have long to stop though as storms began firing soon after our arrival, but close by. It was only 2pm and we were excited for a full days chasing.

Moving into position the storms initially displayed nice, discrete structures as they began to mature.
6615-1

Hopes were still high, but the storm was struggling to get truly organized in the low levels, the base displaying more of an elongated shape as opposed to nice and rounded.

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To our dismay, multiple storms began firing all around. The cap was too weak and the CAPE was too high. Storms were going to have a hard time competing for inflow and becoming dominant. I kept up with the initial storm fairly well, staying under the base, which did have a rotating wall cloud for awhile. The roads were quite muddy and slippery though, especially with my over used, bald tires. Progress was slow but fortunately so were storm speeds. I got just ahead of the storm so view its area of interest for awhile. As it approached it made a serious attempt at organizing in the low levels.
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I let it move overhead, and noted a wimpy little funnel cloud that briefly extended from the area of rotation. This was probably more of a shear funnel than anything that stood a chance at being truly tornadic, but at least I was in the right spot.
TheMightyFunnel

After this the storm became embedded in a cluster of storms. Visually I was unimpressed, so I dumped the storm for the most isolated looking storm on radar, which was now tornado warned. Getting into position brought similar structures though. Elongated, HP, mostly featureless storms warned for quarter size hail and radar indicated rotation. I bounced to a couple more storms, almost until dusk. After calling the chase I met back up with Alec and a handful of other chasers for one last dinner in the plains before heading back home. This time of year you never know if it will be your last trek to the plains for the season, so its nice to say goodbye to some of your friends.

On the way home fatigue started kicking in, so I opted to pull over at a rest stop in Iowa and catnap in the back seat. A couple hours later I awoke to the sound of howling wind and thunder as I got overtaken by a squall line. It was kind of nice riding it out in a camping sense, as opposed to what usually happens which is me driving home through it for 4 hours.

Conclusion:

Overall the day was a let down given how favorable it looked for awhile, but I was able to position and play the storms well, so if something happened it would have been a nice show. You can’t really consider the day a bust when you get on supercells and some severe weather.

Map:
6-6map

SPC Reports:

 

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