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May 7-28, 2022 | Severe Weather/MCS Sequence


ElectricStorm

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  • Meteorologist

HRRR just looks weird for tomorrow. Here are some hourly consecutive soundings ahead of the developing MCS in the current day 2 high-end enhanced risk. I really don't think these soundings would support a high-end enhanced risk. I suspect HRRR is over-mixing the warm sector, especially considering the strength of the system

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  • Meteorologist

Setting the bar real high for MCS season, but given the prevalence of robust EMLs (see past 6 weeks) and the very warm GoM, the next 2 months should be filled with plenty of crazy MCSs.

This one is special because of how insanely well-defined the MCV was prior to the MCS development. That led to this massive MCS/MCV signature.

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Edited by ClicheVortex2014
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Tomorrow is certainly looking like a pretty big day up north, even if there's little tornado activity the wind threat will be pretty legit. Probably will be a decent QLCS spin up producer as well. 

Looking beyond that, the Day 3 slight risk looks decent, should see some isolated severe potential. That will be my last day here in Norman before heading back home for the summer so we'll see if we can get some action before heading back. Beyond that, we could see some potential MCS setups here over the weekend and into the early parts of next week, so while there's nothing big coming our way, I'm not as pessimistic for this upcoming week as I was a few days ago. Doesn't take much for a small MCS setup to turn into an enhanced risk this time of year so we'll see if we can cash in next week. As long as we don't get anything on 5/19... 

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I need to miss this bullshit later today.

A…..I don’t want to deal with hail and wind

B…..I certainly don’t need the rain.  Just starting to dry out enough to think about planting this weekend.  In spots.

They keep saying James River Valley and East for the storms.  Well, I’m 4 miles west of the James River, so I’m holding them to it!

(Technically I’m in the the JR valley, but shhhhh)

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  • Meteorologist

Amazingly well-defined outflow boundary/warm front in Minnesota. 

CODNEXLAB-GOES-East-regional-midwest-truecolor-19_41Z-20220512_map_-24-1n-5-100.thumb.gif.feb873f04dff5e0fbbad52f2872ef99f.gif

 

Tornado watch coming. "Explosive supercell development", "widespread damaging winds

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  Mesoscale Discussion 0738
   NWS Storm Prediction Center Norman OK
   0247 PM CDT Thu May 12 2022

   Areas affected...much of eastern South Dakota

   Concerning...Severe potential...Watch likely 

   Valid 121947Z - 122215Z

   Probability of Watch Issuance...95 percent

   SUMMARY...Severe storms will develop along the fronts in South
   Dakota later today, and move into eastern South Dakota from the
   southwest. Widespread damaging winds and several tornadoes are
   anticipated.

   DISCUSSION...Surface analysis shows a cold front approaching central
   SD and extending into the NE Panhandle. Meanwhile, a warm front
   extends from near Pierre to south of Aberdeen to Brookings. Visible
   imagery shows substantial towering CU along and south of this area
   where temperatures are rising and MLCAPE is over 3000 J/kg. Midlevel
   lapse rates are very steep, and suggest explosive supercell
   development will be possible from central into northeast SD.
   Low-level shear favors tornadoes near the warm front, and a strong
   tornado will be possible.

   To the south, a line of severe storms is quickly taking shape over
   central NE, and will rapidly move north/northeast across the MO
   River after 21Z. Significant wind damage will be possible into
   southeast SD through evening as storms expand into the most unstable
   air.

 

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  • Meteorologist

If the standards weren't so damn high for 60% wind, today would be a great day for it. But I respect the desire to preserve it for the most serious, high-confidence high-end days. I think that's the better move here.

Edited by ClicheVortex2014
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