Severe 3/17/21 Severe Weather Outbreak Al/Ms/Tn/Ar nowcast

[HSVweather]

broad rotation Jefferson county

 

[bingcrosbyb]

About to be warned

View attachment 79333
broad rotation Jefferson county

 

[Myfrotho704_]

There’s probably a tor on this

 

[CCAir90]

Can someone explain why Huntsville NWS declined to put all the counties outlined by SPC in the watch? I've noticed this happens from time to time with different offices so just curious

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.

 

[Zander98al]

View attachment 79333
broad rotation Jefferson county

That one's a sneaky one. I'm afraid it's going to tighten up real quick cause it looks primed

 

[Tornadocane]

How the hell is this not warned View attachment 79332

A Tornado Warning was just issued for that cell. It will likely be confirmed.

 

[Zander98al]

My goodness that was quick

 

[Zander98al]

It strengthened again. This ones the real deal. Anybody got some gate to gate shear on it?

 

[Myfrotho704_]

Goodness

 

[Zander98al]

Oh no

 

[Tornadocane]

The Birmingham area may be in big trouble!

 

[WxMan427]

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

 

[Brick Tamland]

TOR Warning southeast of Laurel, MS

 

[Zander98al]

CC on the tornado in MS

 

[WxMan427]

WDAM streaming live: https://www.wdam.com/live/

 

[Myfrotho704_]

Woah

 

[Snowfan]

Confirmed

 

[Myfrotho704_]

That’s possibly a violent tornado radar is far away and CC is that strong

 

[Myfrotho704_]

That’s bad, it’s on tilt 4 and still seen....

 

[Zander98al]

Guys a very bad tornado near selma alabama

 

[Zander98al]

My goodness look at the hook and structure

 

[malak05]

Here's the current observed temps basically green is that warm front and the Warm air rushing upward by this afternoon it should be into parts of GA and around metro and temps should be in the 60s

 

[Myfrotho704_]

My goodness look at the hook and structure View attachment 79355

Fits the environment well, not huge shear/SRH but enough for these small/wound up mesos

 

[HSVweather]

My goodness look at the hook and structure View attachment 79355

Watching the CC for a debri signature.

 

[Brick Tamland]

60/40 tor watch issued for southwest LA extending into southeast TX.

 

[Brick Tamland]

PDS watch coming shortly for Eastern AR, Eastern LA, and Western MS.

 

[Myfrotho704_]

These MS cells are getting scary

 

[Brick Tamland]

This really blew up quickly. It's like someone lit a match and boom.

 

[jackendrickwx]

This is incredible. First 45% in ten years if I’m not mistaken

 

[Myfrotho704_]

SBcape over 3500 in some areas which is more then models had

 

[WxMan427]

is this a bounded weak echo region near selma? or just a blip in reflectivity?

 

[Myfrotho704_]

 

[Arcc]

That area around MS is as bad as Moore and the Guin area.

 

[Myfrotho704_]

 

[HSVweather]

north of Tuscaloosa

 

[Zander98al]

I'm afraid that this tornado will drop if it hasn't already. It'd be a direct hit on selma

 

[RollTide18]

Funnel trying to drop in Selma on live cam on WAKA in Montgomery.

 

[Zander98al]

Funnel trying to drop in Selma on live cam on WAKA in Montgomery.

Link?

 

[jackendrickwx]

 

[RollTide18]

Link?

https://www.alabamanews.net/watch-live/