HSVweather
Member
broad rotation Jefferson county
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Severe 3/17/21 Severe Weather Outbreak Al/Ms/Tn/Ar nowcast
- Thread starter SD
- Start date
broad rotation Jefferson county
bingcrosbyb
Member
There’s probably a tor on this 
CCAir90
Member
If you're referring to the rectangular (parallelogram, you nerds) box vs the counties, the box is the Aviation Warning that's included with all SVR/TOR Watches. The "offset" is likely due to tilted updrafts, anvils, etc.
Z
Zander98al
Guest
That one's a sneaky one. I'm afraid it's going to tighten up real quick cause it looks primed
Tornadocane
Member
A Tornado Warning was just issued for that cell. It will likely be confirmed.
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Zander98al
Guest
My goodness that was quick 
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Zander98al
Guest
It strengthened again. This ones the real deal. Anybody got some gate to gate shear on it?
Goodness 
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Zander98al
Guest
Oh no
Tornadocane
Member
The Birmingham area may be in big trouble!
Mesoscale Discussion 0202
NWS Storm Prediction Center Norman OK
1202 PM CDT Wed Mar 17 2021
Areas affected...Portions of southeast Mississippi and southwest
Alabama
Concerning...Tornado Watch 29...
Valid 171702Z - 171800Z
The severe weather threat for Tornado Watch 29 continues.
SUMMARY...A strong tornado threat will increase from Wayne county,
Mississippi to Marengo and Wilcox counties in Alabama over the next
1-2 hours.
DISCUSSION...Shower activity through the morning has continued to
deepen and a strong storm has developed in Jones County, MS. This
storm has quickly exhibited low-level rotation which is indicative
of the favorable low-level shear profile in this region. SPC
mesoanalysis shows an area of 300 to 400 m2/s2 of 0-3km SRH in this
region which is a result of southeasterly surface winds in local
observations in this area and a 50 knot south-southwesterly
low-level jet around 1.5km to 2km sampled by the KMOB and KDGX VWP.
The ongoing storm in this region in addition to any subsequent
development could pose a significant tornado threat given the
aforementioned favorable low-level shear profile and STP values
around 2 to 3.
..Bentley/Grams.. 03/17/2021
NWS Storm Prediction Center Norman OK
1202 PM CDT Wed Mar 17 2021
Areas affected...Portions of southeast Mississippi and southwest
Alabama
Concerning...Tornado Watch 29...
Valid 171702Z - 171800Z
The severe weather threat for Tornado Watch 29 continues.
SUMMARY...A strong tornado threat will increase from Wayne county,
Mississippi to Marengo and Wilcox counties in Alabama over the next
1-2 hours.
DISCUSSION...Shower activity through the morning has continued to
deepen and a strong storm has developed in Jones County, MS. This
storm has quickly exhibited low-level rotation which is indicative
of the favorable low-level shear profile in this region. SPC
mesoanalysis shows an area of 300 to 400 m2/s2 of 0-3km SRH in this
region which is a result of southeasterly surface winds in local
observations in this area and a 50 knot south-southwesterly
low-level jet around 1.5km to 2km sampled by the KMOB and KDGX VWP.
The ongoing storm in this region in addition to any subsequent
development could pose a significant tornado threat given the
aforementioned favorable low-level shear profile and STP values
around 2 to 3.
..Bentley/Grams.. 03/17/2021
B
Brick Tamland
Guest
TOR Warning southeast of Laurel, MS
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Zander98al
Guest
CC on the tornado in MS
WDAM streaming live: https://www.wdam.com/live/
Woah
Confirmed
That’s possibly a violent tornado radar is far away and CC is that strong 
That’s bad, it’s on tilt 4 and still seen....
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Zander98al
Guest
Guys a very bad tornado near selma alabama