And our squall line is rolling on in to the Alabama side of things gradually now. Severe thunderstorms continue in Southern Tennessee. Meanwhile for places like Nashville, the severe weather threat has ended from this squall line event.
2 AM - Here's a better look at the radar.
2:04 - Some broad rotation with that storm coming out of Booneville. And they do have a "tornado possible" tag on that severe thunderstorm warning. But quarter-sized hail has been observed with these storms, which is the baseline for a severe thunderstorm.
2:08 - Meanwhile that warning to the East that included Giles County has been cancelled now because the storms weakened below severe limits.
2:17 - These severe thunderstorm warnings go for about another 10 minutes. These parts of the line appear to still be capable of severe hail and wind gusts. Although the overall trend is for the line to weaken right now. Not sure if that will last throughout the night or not. The Tornado Watch is set to go until 5 AM, so about two and a half more hours.
2:25 - And the SPC just issued a mesoscale discussion about how the severe weather threat continues, and a new watch may be needed further East and South in Alabama, into Georgia, by the time the current Tornado Watch expires at 5 AM. It is not clear-cut whether the new watch will be another Tornado Watch or a Severe Thunderstorm Watch.
2:28 - And we have a new Severe Thunderstorm Warning for Lawrence and Giles Counties as that bow echo moves toward Pulaski, TN.
2:30 - And a Special Weather Statement has been issued for Eastern Lauderdale County into Limestone County for the potential of 40 mph wind gusts and penny sized hail in thunderstorms. Fun fact: Penny size (3/4 inch) used to be the threshold for a severe thunderstorm. John Gordon, who recently retired from the National Weather Service, helped spin up the NWS Huntsville in 2003, and has recently become one of the regular panelists on Bill Murray and James Spann's Weatherbrains podcast, pushed to get the limit up to one inch in diameter hail, quarter-sized, because we had too many warnings for just penny-sized hail and no other hazard from wind.
Anyway, these strong thunderstorms will impact Athens. But they are under severe limits.
2:34 - That warning that included Florence has been allowed to expire, as the storms weakened.
But something interesting is that some activity is starting to try to organize ahead of the squall line, from Madison back to Cullman even back to Fayette Counties. Like another broken line of showers/maybe storms is trying to form. We'll see what that does.
2:40 - And here is that special balloon data from Birmingham. It shows weak to moderate instability at this point but really strong wind shear, including at the lowest kilometer of the atmosphere, more than enough rotation to support a tornado threat. And still the supercell composite and significant tornado parameter values are at zero. The weak instability is struggling to overcome the capping inversion.
2:44 - And we have a new severe thunderstorm warning that affects from about Florence down to Russellville. It is for the threat of half-dollar sized hail mainly, with a note that wind gusts up to 50 mph are also possible in this storm.
That does include Muscle Shoals, is mainly for Colbert but also includes Northern Franklin and Southern Lauderdale Counties.
2:48 - And this just came from SPC about how we might be in for another round of this Wednesday evening/night. And once again, the best chance of supercells seems to be from Northern Mississippi, far Northwest corner of Alabama up through about the Western half of Tennessee. But you can see, this has the potential to be another widespread outbreak of storms affecting many states, same basic areas as today/tonight's event has.
And of course our threat is still ongoing locally.
At least Tuesday does look sunny with mild temperatures . . .
2:56 - This line has really slowed down and is pushing into Alabama more slowly than I would have expected. If this continues, will be interesting how it affects the impacts as the line of showers/storms moves further into the state later this morning. It is mostly weakening right now.
Well except for that storm coming toward Fayetteville. Will make a new post for that new warning.
Severe Thunderstorm Warning
ALC033-077-310730-
/O.NEW.KHUN.SV.W.0043.250331T0649Z-250331T0730Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Huntsville AL
149 AM CDT Mon Mar 31 2025
The National Weather Service in Huntsville Alabama has issued a
* Severe Thunderstorm Warning for...
Lauderdale County in northwestern Alabama...
Northern Colbert County in northwestern Alabama...
* Until 230 AM CDT.
* At 149 AM CDT, a severe thunderstorm was located 8 miles north of
Cherokee, or 10 miles east of J P Coleman State Park, moving east
at 35 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* Locations impacted include...
Green Hill, Northwest Alabama Regional Airport, Florence, Riverton,
Wright, Oakland, Waterloo, Lexington, Center Star, and Killen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 500 AM CDT for north central
and northwestern Alabama.
&&
LAT...LON 3500 8808 3499 8735 3480 8741 3480 8743
3478 8743 3477 8742 3473 8744 3478 8811
TIME...MOT...LOC 0649Z 273DEG 32KT 3488 8800
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
KTW
Severe Thunderstorm Warning
TNC099-181-310730-
/O.NEW.KOHX.SV.W.0049.250331T0652Z-250331T0730Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
152 AM CDT Mon Mar 31 2025
The National Weather Service in Nashville has issued a
* Severe Thunderstorm Warning for...
Southeastern Wayne County in Middle Tennessee...
Lawrence County in Middle Tennessee...
* Until 230 AM CDT.
* At 152 AM CDT, a severe thunderstorm was located near Collinwood,
or 17 miles south of Waynesboro, moving east at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Lawrenceburg, Loretto, Leoma, Westpoint, Iron City, Collinwood, and
St. Joseph.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 300 AM CDT for Middle
Tennessee.
&&
LAT...LON 3500 8779 3518 8783 3529 8725 3530 8722
3529 8723 3528 8721 3523 8722 3520 8721
3520 8722 3517 8722 3516 8720 3514 8721
3512 8720 3512 8722 3510 8721 3506 8722
3500 8722
TIME...MOT...LOC 0652Z 262DEG 32KT 3508 8771
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
10
Severe Weather Statement
National Weather Service Memphis TN
150 AM CDT Mon Mar 31 2025
MSC117-310700-
/O.CON.KMEG.SV.W.0090.000000T0000Z-250331T0700Z/
Prentiss MS-
150 AM CDT Mon Mar 31 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR PRENTISS COUNTY...
At 149 AM CDT, a severe thunderstorm was located over Wheeler, or
near Booneville, moving east at 40 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Broadcast media.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Thrasher, Blackland, Booneville, Thrashers, Gaston, Geeville, Hobo
Station, Jumpertown, Wheeler, Frankstown, Altitude, Rienzi, and
Baldwyn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 500 AM CDT for northeastern
Mississippi.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
storm shelter or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3453 8839 3453 8873 3454 8874 3460 8873
3460 8872 3467 8872 3476 8862 3476 8836
3475 8835
TIME...MOT...LOC 0649Z 270DEG 34KT 3462 8860
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
AC3
Severe Thunderstorm Warning
TNC007-310745-
/O.NEW.KMRX.SV.W.0034.250331T0649Z-250331T0745Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Morristown TN
149 AM CDT Mon Mar 31 2025
The National Weather Service in Morristown has issued a
* Severe Thunderstorm Warning for...
Bledsoe County in east Tennessee...
* Until 245 AM CDT.
* At 148 AM CDT, a severe thunderstorm was located near Spencer,
moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Melvine, Mount Crest, Pikeville, and Fall Creek Falls State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 700 AM CDT for east
Tennessee.
&&
LAT...LON 3572 8526 3576 8526 3577 8510 3576 8507
3577 8504 3575 8503 3577 8494 3576 8492
3568 8499 3557 8511 3553 8510 3551 8513
3550 8514 3549 8514 3557 8542
TIME...MOT...LOC 0648Z 274DEG 33KT 3571 8541
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
DGS
Severe Weather Statement
National Weather Service Nashville TN
148 AM CDT Mon Mar 31 2025
TNC175-177-185-310700-
/O.CON.KOHX.SV.W.0045.000000T0000Z-250331T0700Z/
Van Buren TN-Warren TN-White TN-
148 AM CDT Mon Mar 31 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR NORTHWESTERN VAN BUREN...NORTHERN WARREN AND WHITE COUNTIES...
At 148 AM CDT, a severe thunderstorm was located 9 miles northeast of
Spencer, moving east at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Sparta, Rock Island State Park, Spencer, McMinnville, Doyle, and Fall
Creek Falls State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for Middle
Tennessee.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3564 8538 3568 8591 3584 8571 3583 8565
3585 8563 3586 8567 3588 8564 3589 8564
3605 8544 3605 8537 3603 8531 3599 8531
3598 8527
TIME...MOT...LOC 0648Z 269DEG 34KT 3584 8535
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
40/Sizemore
Severe Weather Statement
National Weather Service Nashville TN
147 AM CDT Mon Mar 31 2025
TNC003-055-117-310715-
/O.CON.KOHX.SV.W.0047.000000T0000Z-250331T0715Z/
Marshall TN-Giles TN-Bedford TN-
147 AM CDT Mon Mar 31 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR MARSHALL...NORTHEASTERN GILES AND BEDFORD COUNTIES...
At 146 AM CDT, severe thunderstorms were located along a line
extending from 10 miles southeast of Spring Hill to 11 miles east of
Pulaski, moving east at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Belfast, Deason, Frankewing, Shelbyville, Cornersville, Farmington,
Lewisburg, Unionville, and Chapel Hill.
This includes Interstate 65 between mile markers 11 and 34.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for Middle
Tennessee.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3541 8699 3541 8696 3545 8695 3545 8692
3553 8685 3564 8682 3568 8652 3564 8646
3565 8642 3562 8640 3532 8642 3536 8649
3535 8653 3537 8659 3533 8660 3531 8668
3525 8675 3526 8683 3515 8683 3515 8695
TIME...MOT...LOC 0646Z 259DEG 38KT 3563 8680 3523 8684
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
10
Severe Thunderstorm Warning
TNC031-061-175-177-310745-
/O.NEW.KOHX.SV.W.0048.250331T0646Z-250331T0745Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
146 AM CDT Mon Mar 31 2025
The National Weather Service in Nashville has issued a
* Severe Thunderstorm Warning for...
Van Buren County in Middle Tennessee...
Southern Warren County in Middle Tennessee...
Southeastern Coffee County in Middle Tennessee...
Grundy County in Middle Tennessee...
* Until 245 AM CDT.
* At 146 AM CDT, severe thunderstorms were located along a line
extending from near Spencer to 16 miles west of Pikeville to near
Manchester to near Tullahoma, moving southeast at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Monteagle, Altamont, Gruetli-Laager, Spencer, Coalmont, Palmer,
Fall Creek Falls State Park, Hillsboro, Pelham, Tracy City, Viola,
Beersheba Springs, McMinnville, Arnold AFB, Manchester, and Fiery
Gizzard State Park.
This includes Interstate 24 between mile markers 114 and 134.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 300 AM CDT for Middle
Tennessee.
&&
LAT...LON 3524 8584 3522 8587 3531 8594 3537 8616
3567 8581 3580 8555 3579 8552 3581 8552
3580 8536 3582 8527 3571 8528 3557 8542
3553 8561 3549 8554 3543 8554 3538 8549
3532 8556 3529 8571 3524 8569 3522 8574
TIME...MOT...LOC 0646Z 302DEG 29KT 3581 8540 3564 8548 3550 8601 3541
8618
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
40/Sizemore
Severe Weather Statement
National Weather Service Nashville TN
145 AM CDT Mon Mar 31 2025
TNC003-015-031-177-310700-
/O.CON.KOHX.SV.W.0046.000000T0000Z-250331T0700Z/
Warren TN-Coffee TN-Bedford TN-Cannon TN-
145 AM CDT Mon Mar 31 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR SOUTHWESTERN WARREN...COFFEE...SOUTHEASTERN BEDFORD AND
SOUTHWESTERN CANNON COUNTIES...
At 145 AM CDT, severe thunderstorms were located along a line
extending from 10 miles west of McMinnville to Lynchburg, moving east
at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Morrison, Tullahoma, Beechgrove, Raus, Summitville, Manchester,
Normandy, Wartrace, Centertown, Shelbyville, Bell Buckle,
McMinnville, and Arnold AFB.
This includes Interstate 24 between mile markers 96 and 118.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for Middle
Tennessee.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3537 8653 3556 8640 3573 8610 3572 8577
3547 8593 3535 8606 3536 8616 3534 8620
3534 8626 3535 8624 3537 8628 3538 8625
3539 8628 3540 8626 3541 8625 3541 8629
3536 8633 3535 8641 3532 8642
TIME...MOT...LOC 0645Z 272DEG 25KT 3568 8596 3529 8636
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
10
Severe Weather Statement
National Weather Service Memphis TN
140 AM CDT Mon Mar 31 2025
MSC003-141-310700-
/O.CON.KMEG.SV.W.0089.000000T0000Z-250331T0700Z/
Tishomingo MS-Alcorn MS-
140 AM CDT Mon Mar 31 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR NORTHERN TISHOMINGO AND EASTERN ALCORN COUNTIES...
At 139 AM CDT, a severe thunderstorm was located near J P Coleman
State Park, moving east at 50 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...
Bacon Springs, Iuka, Oldham, Doskie, J P Coleman State Park,
Strickland, Pineflat, Blythe Crossing, Biggersville, Jobes, Hinkle,
Glen, Hazard Switch, Walker Siding, Kendrick, Burnsville, Holts Spur,
Farmington, Corinth, and Leedy.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for west
Tennessee. A Tornado Watch also remains in effect until 500 AM CDT
for northeastern Mississippi.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
storm shelter or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3477 8811 3477 8858 3495 8860 3500 8846
3499 8838 3500 8835 3500 8820 3497 8819
3496 8817 3492 8815 3489 8810
TIME...MOT...LOC 0639Z 266DEG 42KT 3490 8811
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
DNM