Goofy behind the scenes vlog inside the May 2020 Storm chasing season and how I chase with as little social interactions as possible during the Covid19 pandemic. Big supercells amped to drop tornadoes resembling tiny saggy nipples has been the May theme.
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PECOS HANK T SHIRTS & MUGS
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CLEAR SLOT or Rear Flank Downdraft clear slot...
Often you'll hear storm chasers call out a "clear slot" but many times these features are difficult to make out in their videos. In this video you can see time lapses of clear, classic clear slots. When a Rear Flank Downdraft (RFD) is forced down the backside of the storm it often surges forward and around the mesocyclone. This air often cuts into the storm base and if the air is relatively dryer, it forces out a clear slot or notch into the base. When storm chasers see this, it hints that a tornado could occur soon. Our view is from the south or west looking north or east. Watch how the circulation north of the clear slot appears to intensify as the clear slot cuts into the rain free base. Of course in high precipitation storm modes, these features become more difficult to decipher.
ANTICYCLONIC TORNADO...
As the RFD clear slot cuts into the base, notice the slight anticyclonic circulation on the viewing side of the clear slot. This is the vicinity were anticyclonic tornadoes are most likely to form. Most tornadoes are cyclonic though.
More info later...