Thursday, March 14, 2024

Severe T-Storm Warning


The warning has also been reissued to the West including places like Moulton, Trinity, and Decatur. 

Instead of making new posts, think will just post updates here. 


10:48 PM - a very small warning polygon has been issued to include Town Creek now too. In some ways, county-based warnings had their advantages back in the day. Took the special weather statement polygons off to avoid confusion. Because the map just gets too cluttered with multiple polygons that way. 


10:56 PM - And here's another one. These storms decided not to wait on the main squall line later tonight or in the morning. 

Actually no, that is a mistake . . . that popped up on Twitter out of order, and I posted before double-checking. Let's do a radar reset. 




10:59 - All right, so we really only have the severe thunderstorm hugging the Madison/Lincoln County line, extends across the state line, and then the storm back in Lawrence County that ended up with two polygons, includes Town Creek and Moulton, storm moving generally toward Decatur and Trinity. 


11:02 PM - This storm that is moving up into Tennessee now carries a tag noting that a tornado could possibly develop, as the storm is showing some rotation on radar. The rotation is broad, but it is a better safe than sorry thing. 


11:07 - The main squall line is several hours to our West. By daybreak or so we should be dealing with it, at least Western counties of North Alabama and into Tennessee. 


11:17 PM - The warning for Decatur and nearby communities has been reissued. The one in Tennessee has been let go, although they have a special weather statement still in effect for strong winds, but below severe limits. 


11:20 - And now we have a separate warning polygon for that storm over Courtland. 


11:22 - And now actually a new warning has come out in Tennessee, for communities like Pulaski, Cornersville, Frankewing, and Belfast. This is a pretty rural area of Tennessee, but hey, those people need to know too. Some of them probably have enough sense (and enough funds) to have a storm shelter. This only looks like straight-line winds though. Things were a little suspicious around Hazel Green earlier, some rotation showing up. But that weakened and the storm passed. 

11:32 - That TN storm now has confirmed hail of quarter size, inch in diameter. The winds up to 60 mph are estimated from radar. The warning has been extended to include parts of Lincoln and Moore Counties. 


The tan polygons you see (I turned those back on) are Special Weather Statements. They indicate storms that are strong enough to take note of but not at the criteria for a Severe Thunderstorm Warnings. Severe thunderstorm warnings are issued when a storm is thought to be an immediate threat to life and property because of damaging winds or large hail. Special Weather Statements just let you know that some significant weather is going on but is not bad enough to issue a Warning for. That even happens with winter weather, like if there's a chance of a little snow in the Winter but not enough to need any kind of watch, warning, or advisory.

Of course the Severe Thunderstorm Warnings are the yellow polygon boxes. 

Even in these special weather statements, winds may gust up to 50 mph. 

 Severe Thunderstorm Warning

ALC089-TNC103-150415-
/O.NEW.KHUN.SV.W.0014.240315T0343Z-240315T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Huntsville AL
1043 PM CDT Thu Mar 14 2024

The National Weather Service in Huntsville Alabama has issued a

* Severe Thunderstorm Warning for...
  Northern Madison County in north central Alabama...
  Southern Lincoln County in Middle Tennessee...

* Until 1115 PM CDT.

* At 1043 PM CDT, a severe thunderstorm was located near Ardmore, or
  11 miles northwest of Meridianville, moving east at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage
           to roofs, siding, and trees.

* Locations impacted include...
  Fayetteville, Meridianville, Moores Mill, Hazel Green, New Market,
  Harvest, Lincoln, Elkwood, Plevna, and Belleview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3517 8642 3490 8635 3486 8678 3499 8678
      3499 8679 3501 8680 3505 8680
TIME...MOT...LOC 0343Z 257DEG 24KT 3498 8674

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

RSB

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