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June 4-10, 2022 | Severe Storms (Quasi-zonal regime)


ClicheVortex2014

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Yeah I'm somewhat concerned with the tornado threat. Storm mode looks kinda favorable, surface winds may be more backed than it was looking yesterday. One big thing going against the threat, aside from the kinda modest low-level shear, is the kinda skinny instability profile.

Like Reed, I could see an enhanced risk for tornadoes but not hatched. If more/fatter instability verifies, maybe then.

floop-hrrr-2022060815.refcmp.us_ov.gif

Edited by ClicheVortex2014
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No enhanced risk with the 1630z update

DAY 1 CONVECTIVE OUTLOOK    
NWS STORM PREDICTION CENTER NORMAN OK  
1141 AM CDT WED JUN 08 2022  
  
VALID 081630Z - 091200Z  
  
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE  
MIDWEST/OHIO VALLEY AND ARKLATEX/DEEP SOUTH...  
   
..SUMMARY  
  
SCATTERED SEVERE THUNDERSTORMS ARE EXPECTED ACROSS THE OHIO  
VALLEY/MIDWEST AND FROM THE SOUTHERN GREAT PLAINS ACROSS THE DEEP  
SOUTH.  
   
..OHIO VALLEY/MIDWEST INCLUDING INDIANA/OHIO/KENTUCKY  
  
THE REMNANTS OF AN MCS CONTINUE TO WEAKEN AND PROGRESS EASTWARD NEAR  
THE LOWER WABASH RIVER VICINITY ALONG THE ILLINOIS/INDIANA BORDER. A  
GENERAL TREND OF ABATING CLOUD COVER PRECEDES THE REMNANT MCS/MCV  
WITH AMPLE INSOLATION IN VICINITY OF A WEST/EAST-ORIENTED FRONT THAT  
WILL SPREAD NORTHWARD TODAY AS A WARM FRONT. MIDDLE/UPPER 60S F  
SURFACE DEWPOINTS WILL ACCOMPANY THIS NORTHWARD-SHIFTING FRONT,  
WHICH WILL CONTRIBUTE TO 2000+ J/KG MLCAPE ACROSS KENTUCKY INTO THE  
SOUTHERN HALVES OF INDIANA/OHIO.   
  
UPPER-AIR ANALYSIS/OBSERVATIONAL DATA SAMPLED RELATIVELY STRONG  
LATE-SPRING MID/HIGH-LEVEL WINDS ACROSS THE GREAT LAKES/MIDWEST THIS  
MORNING, AND THE SOUTHERN EDGE OF THESE STRONGER WINDS WILL OVERLIE  
THE AFOREMENTIONED CORRIDOR IN VICINITY OF THE WARM FRONT AND  
DEEPENING SURFACE WAVE. SEVERAL SUPERCELLS ARE EXPECTED TO DEVELOP  
ACROSS THE REGION THIS AFTERNOON. ENLARGED HODOGRAPHS INCLUDING THE  
POSSIBILITY OF 100-150 M2/S2 0-1 KM SRH COULD POTENTIALLY YIELD A  
FEW TORNADOES IN ADDITION TO SCATTERED DAMAGING WINDS AND SOME HAIL.  
THE SEVERE STORM RISK WILL LIKELY PERSIST EASTWARD TOWARD THE UPPER  
OHIO VALLEY THROUGH EVENING. 

 

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1 hour ago, Gerb131 said:

timmer likes central Indiana to western sw oh for an enhanced tor risk 

It's probably one of the rare times Reed Timmer will mention Ohio in a video. And yet, still a 5% risk by the SPC for tornadoes.

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Here we go

image.png.c5adcd33fe8f3e4e8c582317981d35de.png

  Mesoscale Discussion 1089
   NWS Storm Prediction Center Norman OK
   1238 PM CDT Wed Jun 08 2022

   Areas affected...The Ohio River Valley

   Concerning...Severe potential...Tornado Watch likely 

   Valid 081738Z - 081945Z

   Probability of Watch Issuance...80 percent

   SUMMARY...The potential for severe weather, including a few
   tornadoes, will increase in the coming hours for portions of the
   Ohio River Valley. A watch will likely be needed to address this
   potential.

   DISCUSSION...Afternoon observations show a surface low gradually
   deepening as it translates east towards the OH River Valley region.
   Ahead of this low, a surface warm front is identified in both
   surface observations as well as GOES visible imagery in the form of
   a northward-advancing cumulus field. A diffuse, but discernible,
   cold front is also noted advancing eastward with the low. Although
   instability north of this boundary remains marginal, daytime heating
   (modulated to a degree by cloud cover) and northward advection of
   mid/upper 60s dewpoints have bolstered MLCAPE values to near 1000
   J/kg. This instability is sufficient for deep convection (evidenced
   by a few ongoing thunderstorms along the front) despite some
   lingering inhibition. The northward advance of the warm front should
   allow favorable buoyancy to spread as far north as the lower half of
   IN/OH by mid/late afternoon.

   Aloft, a seasonally strong upper-jet is supporting 40-50 knots of
   effective bulk shear both along the warm front and across the warm
   sector to the south. Considerable veering in the lowest 2-3 km is
   noted in regional VWPs within the warm frontal zone with a nearly
   unidirectional flow field above this layer. This hodograph structure
   will support the potential for supercells that may pose all hazards,
   especially along the surface warm front and near the surface low
   where low-level SRH will be maximized and storm residence time may
   be adequate to realize the favorable environment. Initially discrete
   storms appears likely with a gradual transition to clusters and/or a
   few line segments possible as storms interact along the boundary
   (though when this transition will occur this afternoon/evening is
   uncertain). Regardless, the increase in severe potential is
   sufficient to warrant a watch in the coming hours.

 

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2 minutes ago, StormfanaticInd said:

Actually feels like a severe weather day outside today

Yeah I'd be far more concerned if I didn't think so little of the ceiling of the tornado threat. Hopefully I'm right about that. You don't get favorable storm mode very often around here. 

Edited by ClicheVortex2014
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21 minutes ago, ClicheVortex2014 said:

Here we go

image.png.c5adcd33fe8f3e4e8c582317981d35de.png

  Mesoscale Discussion 1089
   NWS Storm Prediction Center Norman OK
   1238 PM CDT Wed Jun 08 2022

   Areas affected...The Ohio River Valley

   Concerning...Severe potential...Tornado Watch likely 

   Valid 081738Z - 081945Z

   Probability of Watch Issuance...80 percent

   SUMMARY...The potential for severe weather, including a few
   tornadoes, will increase in the coming hours for portions of the
   Ohio River Valley. A watch will likely be needed to address this
   potential.

   DISCUSSION...Afternoon observations show a surface low gradually
   deepening as it translates east towards the OH River Valley region.
   Ahead of this low, a surface warm front is identified in both
   surface observations as well as GOES visible imagery in the form of
   a northward-advancing cumulus field. A diffuse, but discernible,
   cold front is also noted advancing eastward with the low. Although
   instability north of this boundary remains marginal, daytime heating
   (modulated to a degree by cloud cover) and northward advection of
   mid/upper 60s dewpoints have bolstered MLCAPE values to near 1000
   J/kg. This instability is sufficient for deep convection (evidenced
   by a few ongoing thunderstorms along the front) despite some
   lingering inhibition. The northward advance of the warm front should
   allow favorable buoyancy to spread as far north as the lower half of
   IN/OH by mid/late afternoon.

   Aloft, a seasonally strong upper-jet is supporting 40-50 knots of
   effective bulk shear both along the warm front and across the warm
   sector to the south. Considerable veering in the lowest 2-3 km is
   noted in regional VWPs within the warm frontal zone with a nearly
   unidirectional flow field above this layer. This hodograph structure
   will support the potential for supercells that may pose all hazards,
   especially along the surface warm front and near the surface low
   where low-level SRH will be maximized and storm residence time may
   be adequate to realize the favorable environment. Initially discrete
   storms appears likely with a gradual transition to clusters and/or a
   few line segments possible as storms interact along the boundary
   (though when this transition will occur this afternoon/evening is
   uncertain). Regardless, the increase in severe potential is
   sufficient to warrant a watch in the coming hours.

 

Wow fun evening ahead.

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Lots of clouds around today...and a nice breeze. Still feels soupy out. Maybe we can get a good storm up this way. Would be nice to break our stormless streak. But more concerned for SW Ohio. Looks like the biggest threat might be hail again?

Edited by NWOhioChaser
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maybe somebody put dry ice next to the thermometer at Defiance (1 degree). It's a slightly messed up METAR:

METAR: KDFI 081753Z AUTO 11008KT FEW037 SCT120 M17/ A2986 RMK AO2 SLP121 T1172 58024 TSNO $

 

a bit chilly at defiance.jpg

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16 minutes ago, i70split said:

Just got a severe thunderstorm warning for where I am in Northern Morgan County Indiana. Radar indicated hazard of quarter sized hail. Thundering now, let you all know if anything interesting happens 

Only heavy straight down rain here, not even a gust of wind. Watching it on radar the core of the cell seemed to turn to the SE as it got to me. Done raining here for now 

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