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June 11-24, 2022 | Northwest Flow Severe Weather/Ring of Fire


ClicheVortex2014

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by the way, HRRR soundings show that the supercell composite parameter is 55 just south of Chicago. The currently tornado-warned storm has moved through O'Hare and Midway, and now to White Sox land.

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Just now, Chinook said:

by the way, HRRR soundings show that the supercell composite parameter is 55 just south of Chicago. The currently tornado-warned storm has moved through O'Hare and Midway, and now to White Sox land.

Was about to say... other than the Chicago supercell, it's missing the cells east of it.

image.thumb.png.a447bb0f7f2b4b6655e5da356de612b2.png

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2 minutes ago, ClicheVortex2014 said:

HRRR-generated sounding for KDAY on the 0z HRRR (hour 0) is looking very rough. Robust 0-3km convective overturning, but moderately steep lapse rates remain above that layer.

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What does that mean in Laymans terms?

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Just now, Michelle said:

What does that mean in Laymans terms?

The storms made the low-levels very stable/dry, but some mid-level instability remains. Given the time of day, it's very questionable whether the low-levels can destabilize. Any other time of year it would be a 'no', but given how much warmth and moisture surrounds us, I think we should be able to recover a bit. But I don't think it'll be enough to warrant an enhanced risk for our area. 

But the new day 1 outlook is due any moment. It'll be interesting to see what SPC thinks.

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Really think the Moderate could trimmed on the northern fringe. Looks like most of the severe threat will stay west/south of Toledo. This line probably will help stabilize us for the most part around here.

Getting ansty with the line coming through.  Should be here within the next 30-45 mins.

 

Edited by NWOhioChaser
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Wilmington dropped the severe thunderstorm watch (which was for round one) and now everyone is freaking out on their Facebook page. “I read we’re getting a massive derecho across the whole state. When’s it coming?” 😆

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1 minute ago, BuckeyeGal said:

Wilmington dropped the severe thunderstorm watch (which was for round one) and now everyone is freaking out on their Facebook page. “I read we’re getting a massive derecho across the whole state. When’s it coming?” 😆

Don't get me started on my peeve...."What about my town?1?!?!" 🙃

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11 minutes ago, ClicheVortex2014 said:

The storms made the low-levels very stable/dry, but some mid-level instability remains. Given the time of day, it's very questionable whether the low-levels can destabilize. Any other time of year it would be a 'no', but given how much warmth and moisture surrounds us, I think we should be able to recover a bit. But I don't think it'll be enough to warrant an enhanced risk for our area. 

But the new day 1 outlook is due any moment. It'll be interesting to see what SPC thinks.

So assuming that western fringe grows or stays strong, does the mid level instability do enough to maintain it into the northern Dayton area/south Dayton?

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5 minutes ago, NWsnowhio said:

Don't get me started on my peeve...."What about my town?1?!?!" 🙃

Oh I troll my friends official TV twitter accounts with variations of that question. Always fun. Never get a response though... it's weird. It's nice because now I have 3 friends that are on Cincinnati and Dayton TV stations. 

West-central Ohio remains in the same position as the previous day 1 outlook. Seems SPC expects sufficient recovery.

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Edited by ClicheVortex2014
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1 minute ago, ak9971 said:

So assuming that western fringe grows or stays strong, does the mid level instability do enough to maintain it into the northern Dayton area/south Dayton?

The thing with elevated instability is that it doesn't produce wind/tornado threat because low-level stability is detrimental to it. It can produce hail though. 

It's all about how well we recover from the storms earlier. That's a huge question mark. Very hard to gauge that.

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8 minutes ago, BuckeyeGal said:

Wilmington dropped the severe thunderstorm watch (which was for round one) and now everyone is freaking out on their Facebook page. “I read we’re getting a massive derecho across the whole state. When’s it coming?” 😆

 

tenor (1).gif

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SPC is hinting at a downstream watch.

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Mesoscale Discussion 1152
   NWS Storm Prediction Center Norman OK
   0805 PM CDT Mon Jun 13 2022

   Areas affected...Northern IN...southern Lower MI...and far northwest
   OH

   Concerning...Severe Thunderstorm Watch 356...

   Valid 140105Z - 140230Z

   The severe weather threat for Severe Thunderstorm Watch 356
   continues.

   SUMMARY...The severe threat will continue spreading southward across
   portions of northern IN, southern Lower MI, and far northwest OH
   this evening. A local spatial extension of Severe Thunderstorm Watch
   356 could eventually be warranted in parts of north-central IN.

   DISCUSSION...A line of convection consisting of multiple different
   modes will advance southward from southern Lower MI into northern IN
   and northwest OH this evening. Over far northwest IN, a persistent
   supercell cluster will continue to pose a risk of damaging gusts,
   though a tornado cannot be ruled out owing to modest low-level
   hodograph curvature and related streamwise vorticity amid recovered
   surface-based inflow. 

   Farther east over northeast IN/south-central Lower Michigan, a
   bowing segment is moving southeastward at around 40 kt, which has
   produced 65-75 mph gusts. Between these two areas of convection, a
   feed of high theta-e air (upper 70s dewpoints and lower 90s
   temperatures) are supporting deepening updrafts along a
   consolidating cold pool along the IN/Lower MI border. 55-65 kt of
   effective bulk shear oriented oblique to the consolidating cold pool
   could favor additional organization/upscale growth with southward
   extent -- especially given the strong surface-based instability
   downstream. 

   Current thinking is that this activity will continue tracking
   south/southeastward this evening, and a spatial extension of Severe
   Thunderstorm Watch 356 could eventually be warranted.

 

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