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Tn Valley Severe Weather


jaxjagman
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17 hours ago, jaxjagman said:

Not sure about that,storm mode looks like it should last until we start to lose diurnal heating ,severe should last until then at least..IMO

Yeah, I see what you're seeing upon further review (hence, the post edit). Looking at the latest HRRR, I think western middle TN needs to definitely keep their guard up through 4/5 pm CT as there may be a few cells that pull a repeat of what was happening near Sharon earlier. I’m hoping things start to improve tonight, especially the further east you go from metro, but the window is probably longer than I initially suspected. A few hours ago, I was still thinking the storm mode was too messy but it sure seems we're seeing greater instability. I’m not liking these latest trends…

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Severe Weather Statement
National Weather Service Paducah KY
158 PM CST Sat Dec 9 2023

KYC219-092015-
/O.CON.KPAH.TO.W.0060.000000T0000Z-231209T2015Z/
Todd KY-
158 PM CST Sat Dec 9 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM CST FOR SOUTHERN
TODD COUNTY...

At 158 PM CST, a confirmed large and extremely dangerous tornado was
located just west of Guthrie, or 8 miles northeast of Clarksville,
moving northeast at 45 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed tornado.

IMPACT...You are in a life-threatening situation. Flying debris may
         be deadly to those caught without shelter. Mobile homes
         will be destroyed. Considerable damage to homes,
         businesses, and vehicles is likely and complete destruction
         is possible.

The tornado will be near...
  Guthrie around 205 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, 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 3665 8710 3664 8710 3664 8734 3669 8733
      3682 8706
TIME...MOT...LOC 1958Z 247DEG 39KT 3665 8725

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...<.75 IN
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BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Paducah KY
159 PM CST Sat Dec 9 2023

The National Weather Service in Paducah has issued a

* Tornado Warning for...
  Southern Todd County in south central Kentucky...

* Until 230 PM CST.

* At 159 PM CST, a confirmed large and extremely dangerous tornado
  was located 4 miles west of Guthrie, or 8 miles northeast of
  Clarksville, moving northeast at 40 mph.

  This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

  HAZARD...Damaging tornado.

  SOURCE...Radar confirmed tornado.

  IMPACT...You are in a life-threatening situation. Flying debris
           may be deadly to those caught without shelter. Mobile
           homes will be destroyed. Considerable damage to homes,
           businesses, and vehicles is likely and complete
           destruction is possible.

* The tornado will be near...
  Guthrie around 205 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, 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 3675 8706 3664 8706 3664 8731 3670 8732
      3682 8706 3677 8705
TIME...MOT...LOC 1959Z 245DEG 36KT 3666 8725

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...<.75 IN
 
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 Mesoscale Discussion 2305
   NWS Storm Prediction Center Norman OK
   0159 PM CST Sat Dec 09 2023

   Areas affected...Western/central KY...Western/middle TN...Northwest
   MS...Eastern AR...Northwest AL

   Concerning...Tornado Watch 714...

   Valid 091959Z - 092130Z

   The severe weather threat for Tornado Watch 714 continues.

   SUMMARY...The threat for a few tornadoes and isolated severe
   wind/hail will continue through the afternoon, with storm coverage
   expected to increase with time.

   DISCUSSION...A broken line of supercells is ongoing early this
   afternoon from western TN into eastern AR, with occasional rotating
   cells noted within a larger storm cluster across western KY. A
   supercell cluster currently approaching the TN/KY border produced an
   earlier apparent tornado in northwest TN, with another tornado
   recently noted just southwest of the KHPX radar. The other cells
   along the broken line will continue to pose a threat of all severe
   hazards as they move east-northeastward. These cells are ongoing
   along and just ahead of a composite outflow boundary/cold front that
   will continue to move eastward this afternoon. Deep-layer flow
   parallel to the boundary may encourage an increase in storm coverage
   and a transition to more of a mixed mode with time, though embedded
   supercells will likely continue to be possible through the
   afternoon, with all severe hazards possible. 

   The greatest short-term tornado threat (including the potential for
   a strong tornado) will likely continue to be focused from far
   northwest MS into western/middle TN, southern KY, and eventually
   extreme northwest AL, where the most favorable overlap of
   low-level/deep-layer shear (including 0-1 km SRH of 150-250 m2/s2
   noted on regional VWPs and objective mesoanalyses) and instability
   (MLCAPE of 1000-1500 J/kg) will persist this afternoon, prior to the
   arrival of the front. This area is being upgraded to an Enhanced
   Risk (driven by 10% tornado probabilities) in the upcoming 20Z
   outlook. Also, downstream watch issuance will likely be needed later
   this afternoon, as storms approach a larger portion of middle TN
   into northwest AL.
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Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0203 PM CST Sat Dec 09 2023

   Valid 092000Z - 101200Z

   ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS OVER WESTERN
   AND MIDDLE TENNESEE...AND SMALL PARTS OF NORTHERN MISSISSIPPI AND
   FAR SOUTHERN KENTUCKY...

   ...SUMMARY...
   Several tornadoes, scattered large hail and areas of damaging winds
   are expected through the afternoon into the evening from portions of
   the Ohio and Tennessee Valleys southward to the Lower Mississippi
   Valley and middle Gulf Coast.

   ...Lower MS Valley into much of TN and southern KY...
   Tornado probabilities have been increased within an Enhanced Risk
   for the unfolding tornado situation over western into Middle TN and
   far southern KY, and extending into northern MS. 

   Cells have remained discrete and are currently within a developing
   instability plume, adjacent to an area of enhanced low-level shear
   over Middle TN, southern KY and northern MS. The combination of
   favorable storm mode, and fully-effective 0-1 SRH of 150-200 m2/s2
   will pose a damaging tornado risk through the late afternoon. The
   greatest threat area may remain relatively concentrated due to the
   cooler air mass to the east, but an isolated strong tornado or two
   is possible.
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7 minutes ago, jaxjagman said:
Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0203 PM CST Sat Dec 09 2023

   Valid 092000Z - 101200Z

   ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS OVER WESTERN
   AND MIDDLE TENNESEE...AND SMALL PARTS OF NORTHERN MISSISSIPPI AND
   FAR SOUTHERN KENTUCKY...

   ...SUMMARY...
   Several tornadoes, scattered large hail and areas of damaging winds
   are expected through the afternoon into the evening from portions of
   the Ohio and Tennessee Valleys southward to the Lower Mississippi
   Valley and middle Gulf Coast.

   ...Lower MS Valley into much of TN and southern KY...
   Tornado probabilities have been increased within an Enhanced Risk
   for the unfolding tornado situation over western into Middle TN and
   far southern KY, and extending into northern MS. 

   Cells have remained discrete and are currently within a developing
   instability plume, adjacent to an area of enhanced low-level shear
   over Middle TN, southern KY and northern MS. The combination of
   favorable storm mode, and fully-effective 0-1 SRH of 150-200 m2/s2
   will pose a damaging tornado risk through the late afternoon. The
   greatest threat area may remain relatively concentrated due to the
   cooler air mass to the east, but an isolated strong tornado or two
   is possible.

Should have been issued hours ago....just saying

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BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Nashville TN
409 PM CST Sat Dec 9 2023

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Central Davidson County in Middle Tennessee...
  East central Dickson County in Middle Tennessee...
  Central Cheatham County in Middle Tennessee...
  South central Robertson County in Middle Tennessee...

* Until 445 PM CST.

* At 409 PM CST, a confirmed large and extremely dangerous tornado
  was located near White Bluff, or 8 miles southwest of Ashland City,
  moving east at 40 mph.

  This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

  HAZARD...Damaging tornado.

  SOURCE...Radar confirmed tornado.

  IMPACT...You are in a life-threatening situation. Flying debris
           may be deadly to those caught without shelter. Mobile
           homes will be destroyed. Considerable damage to homes,
           businesses, and vehicles is likely and complete
           destruction is possible.

* The tornado will be near...
  Ashland City around 415 PM CST.
  Joelton around 430 PM CST.

Other locations impacted by this tornadic thunderstorm include Beaman
Park, Whites Creek, and Bells Bend.

This includes the following highways...
 Interstate 40 between mile markers 201 and 211.
 Interstate 65 between mile markers 85 and 97.
 Interstate 24 between mile markers 30 and 49.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, 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 3638 8673 3634 8672 3633 8670 3632 8670
      3632 8668 3617 8662 3608 8724 3621 8727
      3644 8678
TIME...MOT...LOC 2209Z 249DEG 35KT 3619 8716

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...<.75 IN
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Quote

..TORNADO EMERGENCY FOR GALLATIN AND HENDERSONVILLE...

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CST FOR
NORTHEASTERN DAVIDSON...SOUTHERN SUMNER AND NORTHWESTERN WILSON
COUNTIES...
        
At 452 PM CST, a confirmed large and destructive tornado was located
over Hendersonville, or 10 miles southwest of Gallatin, moving east
at 40 mph.

 

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