MAY 24TH NEW MEXICO: SUNSET SUPERCELL & POWER FLASHES

 
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Supercell when we first got on it northwest of Carlsbad, NM.  Notice all of the inflow stingers into the storm!  Only one out there.

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Wall cloud forming on the storm at 8:54pm MT.

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Fully mature wall cloud, likely gusting out on the left but holding together on the right with a bowl shaped lowering.

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Look closely: Very low bowl lowering on the right-center of the wall cloud.  Close to this point, we observed power flashes from the right side of the wall cloud/mesocylcone.  May have been a tornado, but not confirmed.

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Another shot of the storm and more of the very good structure.

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View of the wall cloud, lowering, and storm structure at 9:04pm...right near sunset.  Still a big cone shaped lowering in the center.

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Awesome mothership after sunset!  The storm really was starting to gust out here and losing the wall cloud, but taking on amazing structure with strong outflow winds.

STORM REPORTS:

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140524_rpts_filtered

STORM PREDICTION CENTER OUTLOOKS:

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MAY 24, 2014 CHASE LOG: SOUTHEAST NEW MEXICO

Written by Rich Hamel: (http://www.bostonstormchaser.com/)

  A long, slow motion kind of day that looked like it was going to be a bust but ended with a bang! We left Lubbock in heavy rain around noon after doing a Weather 101 class, with Ft. Stockton as our target to play storms as they came north and hit the outflow boundary that had been surging southward from the overnight convection. The first issue we could see was that the boundary had already surged past I-20, though it was forecast to retrograde as the day progressed.

Elevated storms were already underway as we got to Odessa and we passed just to the north of a big left-moving hail storm as we headed west. We were posed with a number of different options: Head northwest to Carlsbad, NM into the area with the best overall conditions and where HRRR was predicting large isolated supercells just before dusk, or head to Ft. Stockton to intercept the tail end of the elevated storms that had gone severe, or target an area more to the southwest. We deferred the decision and headed to Monahans and waited….. then we repositioned to Pecos and waited…. and watched as one of the storms to the east went tornado warned and looked nasty on radar, with a big hook echo wrapping into the outflow boundary.

So, we waited some more since we had no chance of getting to the eastern storms and nothing much was happening in the west, though HRRR still had two big tail end supercells at the end of what later was forecast as a big linear complex. With nothing doing east, we decided to head to Carlsbad, NM again so we’d be in position if the model did verify, and if not, it was progress back towards the hotel.

As we crossed into New Mexico again, things were just starting to percolate, so we stopped in Carlsbad and….. waited again. Finally KABOOM!! A whole series of storms fired along the mountains, and, just as HRRR predicted, there were two big supercells at the tail end just to our west. With darkness falling we first headed south towards the tail end storm, but once we got a glimpse of the cell just to our west we decided we had to target that one and u-turned and headed north out of Carlsbad. As we headed up Rt. 285 we could see the huge base of the storm to our west with scud rapidly rising into the base, a developing wall cloud and numerous inflow “stingers” feeding into the storm. After hundreds of miles of maneuvering through west Texas and southeast New Mexico, we ended up on the exact same road we’d watched the storm of the day on the day before! What are the odds of that? This time though, the storm was a monster classic supercell that meant business and was coming directly at us. As dusk set in, the storm developed a big low hanging wall cloud and then we observed several power flashes right in the front region of the wall cloud, though it was impossible in the failing light to see if it was a tornado that was causing the damage.

We continued to watch the storm as it closed on our location and developed a big beaver tail inflow band, took on awesome spaceship like structure, and was throwing lightning bolts everywhere, but it was now also clearly becoming a high-precipitation storm with baseball sized hail reported. As the storm was almost on top of us, it was time to move and intercept the southern storm before it crossed the road. We headed back south towards Carlsbad and then Loving, while the storm became a behemoth to our west with a perfect eagle-claw radar return, a 75 dbz core (amongst the strongest cores I’ve seen on radar, VIL’s maxed out, 3-4” diameter hail, and on radar 3 maxed out velocity markers)! Clearly not a storm we had any interest of getting run over by! We continued southeast out of Loving and stopped to get a view, but sadly it was now completely dark and we were too close to the front flank core to get a good look at the structure. We watched lightning flying around the anvil for a few minutes, and then it was time to get out ahead of the cores and start the 4 hour trip to Lubbock.

A great finale to the day! Mileage for the day was 525 for a tour total of 2663.