Severe WX April 12-15th, 2018 Severe Potential

[Kory]

Keeping my eye on that storm. It is pretty organized.

 

[Bama Ravens]

Seems like this will be one of these days with spin ups that come and go.

 

[JayF]

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
1234 PM CDT SAT APR 14 2018

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
Northwestern Walker County in central Alabama...
South central Winston County in northwestern Alabama...

* Until 115 PM CDT

* At 1234 PM CDT, a severe thunderstorm capable of producing a
tornado was located near Nauvoo, or near Carbon Hill, moving
northeast at 35 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.

* Locations impacted include...
Carbon Hill, Kansas, Nauvoo, Poplar Springs, Camp McDowell, Smith
Lake, Coon Creek, Lupton, Curtis Crossroads, Seymour Branch and
Black Pond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3387 8753 3393 8760 3410 8733 3395 8723
TIME...MOT...LOC 1734Z 240DEG 29KT 3394 8749

TORNADO...RADAR INDICATED
HAIL...<.75IN

 

[akt1985]

Seems like this will be one of these days with spin ups that come and go.

I like what the NWS office in St. Louis does and doesn’t issue a tornado warning for every single spin up in a squall line but in their severe thunderstorm warnings mention that the squall line could produce brief, spin up tornadoes without warning and to treat it like a tornado warning. That cuts down on the false alarm ratio.

 

[Equus]

Tuscaloosa County tornado warning now too. Had a strong couplet briefly. This is quite the impressive line

 

[Xtreme Weather]

 

[JayF]

The Tornado watch for E Mississippi has been canceled.

 

[buckeye05]

Tuscaloosa County tornado warning now too. Had a strong couplet briefly. This is quite the impressive line

Yeah saw that, was pretty bright several scans ago. I’d be a little concerned if I was in Tuscaloosa or Northport.

 

[Bama Ravens]

BMX has cancelled all tornado warnings in its CWA as of now.

 

[Kory]

Sirens going off still. Students are running to the shelters. I left my rickety apartment and opted for the shelter too.

 

[MichelleH]

New tornado warning for Hale County, AL until 1:45 pm

 

[MichelleH]

http://www.spc.noaa.gov/products/md/md0256.html

Mesoscale Discussion 0256
NWS Storm Prediction Center Norman OK
1241 PM CDT Sat Apr 14 2018

Areas affected...southeast Mississippi through southwest and and
north central Alabama

Concerning...Tornado Watch 47...48...

Valid 141741Z - 141915Z

The severe weather threat for Tornado Watch 47, 48 continues.

SUMMARY...Threat for damaging wind and a few tornadoes will persist
this afternoon with greatest threat next few hours from southeast MS
through western and north central AL. A severe storm might also
occur just north of the current WW and affect a small part of the
Huntsville county warning area...primarily Cullman county.

DISCUSSION...Line of storms with embedded bowing segments and
mesovortices from north central AL through southeast MS and
southeast LA continues east at around 30 kt. VWP data show mostly
unidirectional wind profiles, but 0-1 km hodographs and effective
bulk shear remain supportive of organized structures. Some temporary
lowering of dewpoints has occurred in eastern portion of the WW due
in part to mixing as well as advection of dry air to the east. This
along with expansion of cirrus canopy suggest the boundary layer
will probably not destabilize sufficiently to support much deep
convection away from the squall line. Other storms with some
supercell characteristics are developing in proximity to the warm
front over northern AL and may move a county or two north of current
WW.

 

[Equus]

That new tornado warning in Hale appears to be for a small isolated cell out ahead of the line. Very interesting

 

[SilentShadow87]

Looking like EF2 damage out of Mountainburg based on weak houses being completely demolished and cars tossed off roads.

 

[akt1985]

Seems the line has gone into a lull now that it has reached I-65.

 

[bwalk]

Seems the line has gone into a lull now that it has reached I-65.

Agreed. There has been almost no movement eastward in the last hour. Kind of strange. At 3 pm the leading edge of storms was just west of Selma. Here at 4pm the line has still not reached Selma (unless my GRLevel3 is not loading updates).

WSFA just sent a push notification hinting the severe threat was increasing?

 

[Gus]

Seems the all day rain kept the severe WX out of the North Alabama area. I for one am grateful. 4 Insurance claims for hail is enough.

 

[akt1985]

With no severe weather warnings in the past hour and a half in Alabama, one has to wonder if the SPC will bother issuing a tornado watch for the eastern part has to state.

 

[RollTide18]

With no severe weather warnings in the past hour and a half in Alabama, one has to wonder if the SPC will bother issuing a tornado watch for the eastern part has to state.

Well there looks to be some rotation in the Chilton, Autauga, Coosa area, may need to watch for a quick spin up.

 

[Jason Ledbetter]

Tornadoe warning near Cleburne co Al.