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Severe WX March 29-30, 2022 Severe Event
- Thread starter DetectiveWX
- Start date
OHWX97
Member
It tightened up right over Williston.
Austin Dawg
Member
The main storm one looks very scary but these little cells starting to pop up in front of the mainline on the MS/AL state one really have me worried. My mother is right on the state line in Mississippi and she said the local meteorologist was mentioning those individual cells as well. Do you have to wonder if they have enough juice in the atmosphere to produce anything
brianc33710
Member
The watch probs are a lot lower than I expected.
OHWX97
Member
I was noticing those cells too. I honestly wasn't expecting the discrete activity ahead of the line to look quite that impressive today. Absolutely worth keeping a close eye on.
Equus
Member
As has been noted by people way smarter than me the low dews may certainly enhance damaging wind along the strongly forced line due to negative buoyancy strongly favoring downdrafts as the line draws closer, but for isolated cells out ahead, I'd imagine said very limited low level moisture would keep them quite elevated, seeing as they're traveling north with surface flow; they might be capable of downbursts regardless but despite the extremely powerful wind fields I would think tornado threat with the cells around GWX would remain low unless they can take root; if any of these cells hooks to the NE, watch out
OHWX97
Member
The evolution from QLSC spin-ups to more embedded supercell like storm structures have likely been enhancing the tornado risk and will continue to do so if it persists.
Austin Dawg
Member
Storm Prediction Center Mesoscale Discussion 361
Mesoscale Discussion 0361NWS Storm Prediction Center Norman OK
0559 PM CDT Wed Mar 30 2022
Areas affected...Eastern/northeastern Mississippi and far western
Alabama.
Concerning...Tornado Watch 77...80...
Valid 302259Z - 310030Z
The severe weather threat for Tornado Watch 77, 80 continues.
SUMMARY...The damaging wind and tornado threat continues from a line
of storms with embedded supercells.
DISCUSSION...The nature of the line has changed a bit over the past
1 to 2 hours with a less cohesive QLCS and a more embedded cellular
structure. Each of the tornado warnings and more sustained low-level
circulations are associated with taller cores and reflectivity
structures resembling embedded supercells. This change in nature of
the line and a favorable low-level shear environment (0-1 km SRH in
excess of 300 m2/s2 per KGWX VWP) may lead to an increase in tornado
productivity for the next hour or two. Dewpoints are lower across
Alabama, but some low-level moisture increase is expected, and the
environment remains favorable for tornadoes through the evening and
into the overnight hours.
..Bentley.. 03/30/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...BMX...HUN...MEG...JAN...
LAT...LON 32798981 33328947 33828930 34508928 34878911 34928810
34358792 33428802 32988812 32668842 32358914 32408960
32518981 32798981
OHWX97
Member
Those two embedded supercells in Louisiana are extremely concerning. The northern of the two just went tornado warned.
The one over Roseland now has a tornado warning on it.
OHWX97
Member
I see what might be a faint drop on the most recent scan. Lines up well with velocity.
It's clearly a drop. I hope people were in their shelters at the time.