Saturday, December 28, 2024

Tornado Watch



It looks like potentially a long night for some of us, especially in the Western counties of the Tennessee Valley. Anywhere in and near this watch area, be ready to shelter within five minutes if you go under a Tornado Warning polygon. 

Small room on the lowest floor of a sturdy house (NOT a mobile home!), near the center of the building, away from any windows. And cover your body in case of debris as best you can, especially the back of your head and neck. This could turn out to be serious business for some folks, and tornadoes are hard to confirm at night sometimes. Take care of yourself and your loved ones. 

Make sure if you don't have a weather radio, at least Wireless Emergency Alerts will wake you up on a cell phone. If you have a reliable way to get the warning and a decent safety plan as described above, you'll be fine. But don't get caught in a mobile home, and please don't get caught out driving through any severe weather tonight either. Plan stops along your route, even if it's a 24-hour-hour gas station or truck stop, where if you had to, you could get inside for a few minutes. We don't want anybody getting hurt tonight. And we have had plenty of advance notice that conditions are becoming favorable for severe thunderstorms and even tornadoes. So let's respect the risk and get through this night together, much as families get through the God-awful crud that's been going around this holiday season together. If you've had somebody in your family hacking his or her head off with this stuff, you know it's real. And so is this weather. It's not a huge threat, but we have to respect it. It's a reasonable threat for severe winds or a tornado. Numerous tornado warnings are already in effect in Mississippi. 


9:10 PM - We now have a Severe Thunderstorm Warning for Lamar, Pickens, Sumter, Greene, even down to Choctaw Counties with this squall line as it starts to cross the MS/AL state line now. Kevin Laws from the National Weather Service in Birmingham did a great job in writing this warning and emphasizes that considerable damage is possible, even if these all turn out to be damaging straight-line winds. And also threw in a reminder that tornadoes can develop quickly in an environment like this. So in these areas, I would get into that small central room on the lowest floor of a sturdy house or other strong building. Treat it just about like you would a Tornado Warning in this case. 

9:29 - Lamar County has now been upgraded to a Tornado Warning. 


9:34 - And now Marion and Fayette Counties have been put under Severe Thunderstorm Warnings. Please remember that even these straight-line winds in this squall line have the potential to produce significant property damage and/or serious injury. 

TORNADO WARNING MARION COUNTY AL - STARTING NEW POST

SEL2

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Tornado Watch Number 722
   NWS Storm Prediction Center Norman OK
   810 PM CST Sat Dec 28 2024

   The NWS Storm Prediction Center has issued a

   * Tornado Watch for portions of 
     Northern and Central Alabama
     Northeast Mississippi

   * Effective this Saturday night and Sunday morning from 810 PM
     until 400 AM CST.

   * Primary threats include...
     A few tornadoes likely with a couple intense tornadoes possible
     Scattered damaging winds likely with isolated significant gusts
       to 75 mph possible
     Isolated large hail events to 1 inch in diameter possible

   SUMMARY...A line of thunderstorms should continue to pose some
   threat for a few tornadoes and scattered to numerous damaging winds
   as it moves east-northeastward this evening and overnight. Any
   sustained supercell ahead of the line could produce a strong
   tornado, although severe/damaging winds should eventually tend to
   become the main threat overnight.

   The tornado watch area is approximately along and 50 statute miles
   east and west of a line from 20 miles north northeast of Muscle
   Shoals AL to 30 miles southwest of Selma AL. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU2).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Tornado Watch means conditions are favorable for
   tornadoes and severe thunderstorms in and close to the watch
   area. Persons in these areas should be on the lookout for
   threatening weather conditions and listen for later statements
   and possible warnings.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 720...WW 721...

   AVIATION...Tornadoes and a few severe thunderstorms with hail
   surface and aloft to 1 inch. Extreme turbulence and surface wind
   gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean
   storm motion vector 26040.

   ...Gleason

 WOUS64 KWNS 290206
   WOU2

   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH OUTLINE UPDATE FOR WT 722
   NWS STORM PREDICTION CENTER NORMAN OK
   810 PM CST SAT DEC 28 2024

   TORNADO WATCH 722 IS IN EFFECT UNTIL 400 AM CST FOR THE
    FOLLOWING LOCATIONS

   ALC001-007-009-021-033-043-047-057-059-063-065-073-075-077-079-
   083-085-091-093-103-105-107-115-117-119-121-125-127-133-
   291000-
   /O.NEW.KWNS.TO.A.0722.241229T0210Z-241229T1000Z/

   AL 
   .    ALABAMA COUNTIES INCLUDED ARE

   AUTAUGA              BIBB                BLOUNT              
   CHILTON              COLBERT             CULLMAN             
   DALLAS               FAYETTE             FRANKLIN            
   GREENE               HALE                JEFFERSON           
   LAMAR                LAUDERDALE          LAWRENCE            
   LIMESTONE            LOWNDES             MARENGO             
   MARION               MORGAN              PERRY               
   PICKENS              SHELBY              ST. CLAIR           
   SUMTER               TALLADEGA           TUSCALOOSA          
   WALKER               WINSTON             


   MSC013-017-057-081-095-115-117-141-291000-
   /O.NEW.KWNS.TO.A.0722.241229T0210Z-241229T1000Z/

   MS 
   .    MISSISSIPPI COUNTIES INCLUDED ARE

   CALHOUN              CHICKASAW           ITAWAMBA            
   LEE                  MONROE              PONTOTOC            
   PRENTISS             TISHOMINGO          


   ATTN...WFO...BMX...MEG...HUN...




 

   Mesoscale Discussion 2308

   NWS Storm Prediction Center Norman OK

   0659 PM CST Sat Dec 28 2024


   Areas affected...Central/Northern Alabama into extreme southern

   Tennessee


   Concerning...Severe potential...Tornado Watch likely 


   Valid 290059Z - 290230Z


   Probability of Watch Issuance...80 percent


   SUMMARY...Tornado watch will likely be warranted later this evening

   from central Alabama, northward, possibly into extreme southern

   Tennessee.


   DISCUSSION...LLJ continues to strengthen across MS into middle TN

   early this evening. Low-level warm advection is intense ahead of the

   primary squall line, and this is primarily responsible for scattered

   convection that is evolving along the MS/AL border. While the lead

   warm-advection storms are likely a bit elevated, surface dew points

   have risen into the lower 60s as far north as Jackson TN. With time

   lower 60s dew points will surge across the remainder of northern AL.

   While surface-based buoyancy will remain a bit weak across this

   region, intense shear will contribute to the longevity of upstream

   squall line, along with scattered warm advection storms.


   New tornado watch is likely warranted downstream.


   ..Darrow/Gleason.. 12/29/2024

No comments:

Post a Comment

Winter Storm Warning

  URGENT - WINTER WEATHER MESSAGE National Weather Service Huntsville AL 309 AM CST Thu Jan 9 2025 ALZ001>010-016-TNZ076-096-097-092100- ...