• Hello, please take a minute to check out our awesome content, contributed by the wonderful members of our community. We hope you'll add your own thoughts and opinions by making a free account!

4/11/20 - 4/13/20 Severe Weather Outbreak

I don’t like the fact that these individual cells are popping up, theres only weak surface based instability but shear is so strong that anything could easily spin up, hrrr is handling this poorly, watch these individual cells out ahead
 
Last edited:
God this is the weirdest storm it’s like I’m in a strong tropical storm with sustained winds over 50 and sheets of rain. I actually think the flood watch could verify this time and the moderate risk for flooding makes sense now.
 
GSP 10:50pm Disco:
Highlights Bolded


.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
s of 1030 pm...QLCS is organizing from AL into far southern
middle TN at this time, and this will be the main "show` in terms of
the severe weather potential over our area as it moves quickly
E/NE...likely pushing into far western portions of the CWA by around
06Z. Strong low level warm advection has squeezed residual in-situ
cold air damming to a small area along the eastern Blue Ridge
escarpment, and even this will likely erode in due time. Per the
latest SPC Mesoanalysis...weak surface-based instability as
developed into the upper Savannah River Valley, while sbCAPE > 1000
J/kg has...alarmingly...developed north of the ATL metro area.
Strong southerly flow and steepening lapse rates responding to
strengthening deep-layer forcing will continue to draw this
instability northeastward into the forecast area over the next 3 to
6 hours...ahead of the QLCS. Shear parameters will be through the
roof during this time as 60-70 kt LLJ translates across the
area...supporting outrageous (> 500) values of 0-1 km SRH.
Considering the expected degree of instability, this is looking more
like a "QLCS with embedded supercell structures" type of event,
rather than the "low-topped QLCS with mesovortex" events that we`re
used to. That being the case, the SRH parameters are downright
scary, and portend the potential for a strong/damaging tornado or
two. Swaths of downburst damage also appear likely...if based on
nothing else than good old-fashioned convective mixing.
 
mcd0373.gif
 
Are these storms that strong that the thunder we are hearing near Atlanta is from them? The radar shows rain headed my way ( Lawrenceville, east of Atlanta) and its sprinkling and feels like I'm at the beach when I step out. I hope everyone stays safe tonight!
 
You must log in or register to reply here.
Back
Top