Alert archive / Tennessee / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 21, NWS Nashville, TN

March 1, 20174 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 1, 2017, 11:27 AM CST for 4 counties in Tennessee. It was in force for 48 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 1, 2017, 11:27 AM CST (17:27 UTC)
Expired
Mar 1, 2017, 12:15 PM CST
In force
48 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Giles County, TN, Lawrence County, TN, Marshall County, TN, Wayne County, TN

The radar

The Northeast Alabama radar (KHTX), 87 km from the middle of the area, began a volume at 17:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Mar 1, 11:47 AM CSTHAIL 1Loretto, TNRECEIVED A REPORT OF QUARTER SIZE HAIL IN LORETTO. TIME WAS RADAR ESTIMATED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 5.5 hours before the alert went out and 104 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2017-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 694 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2017-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 361 square meters per square second.1939587897117136156Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
694 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
842 m above ground
0-6 km bulk shear
82 kt
0-1 km storm-relative helicity
361 m²/s²
0-3 km storm-relative helicity
344 m²/s²
Significant tornado parameter
1.6
Supercell composite
9.1

Open this sounding in Storm Lab

The text

As transmitted.

872 
WUUS54 KOHX 011727
SVROHX
TNC055-099-117-181-011815-
/O.NEW.KOHX.SV.W.0021.170301T1727Z-170301T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
1127 AM CST WED MAR 1 2017

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Southeastern Wayne County in Middle Tennessee...
  Southern Marshall County in Middle Tennessee...
  Southern Lawrence County in Middle Tennessee...
  Giles County in Middle Tennessee...

* Until 1215 PM CST

* At 1127 AM CST, severe thunderstorms were located along a line
  extending from 13 miles west of Lewisburg to 7 miles west of
  Pulaski to 11 miles west of Loretto, moving east at 65 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, Pulaski, Loretto, Ardmore, Cornersville, St. Joseph,
  Elkton, Minor Hill, Lynnville, Goodspring, Leoma, Westpoint,
  Frankewing, Iron City and Prospect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3501 8778 3523 8735 3541 8711 3541 8664
      3537 8662 3536 8660 3533 8660 3531 8668
      3525 8675 3526 8683 3499 8684
TIME...MOT...LOC 1727Z 269DEG 58KT 3537 8697 3518 8713 3504 8758 

HAIL...0.75IN
WIND...60MPH
 
$$

10
2 follow-up statements
581 
WWUS54 KOHX 011748
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
1148 AM CST WED MAR 1 2017

TNC181-011758-
/O.CAN.KOHX.SV.W.0021.000000T0000Z-170301T1815Z/
Wayne TN-
1148 AM CST WED MAR 1 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WAYNE COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area therefore the warning has been cancelled.

LAT...LON 3501 8758 3514 8752 3521 8733 3534 8698
      3541 8686 3541 8664 3537 8662 3536 8660
      3533 8660 3531 8668 3525 8675 3526 8683
      3499 8684
TIME...MOT...LOC 1748Z 246DEG 36KT 3540 8672 3525 8689 3503 8749 

$$

TNC055-099-117-011815-
/O.CON.KOHX.SV.W.0021.000000T0000Z-170301T1815Z/
Marshall TN-Lawrence TN-Giles TN-
1148 AM CST WED MAR 1 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CST
FOR SOUTHERN MARSHALL...SOUTHERN LAWRENCE AND GILES COUNTIES...

At 1148 AM CST, severe thunderstorms were located along a line
extending from near Lewisburg to 9 miles northeast of Pulaski to near
Loretto, moving northeast at 40 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...
Lawrenceburg, Pulaski, Loretto, Ardmore, Cornersville, St. Joseph,
Elkton, Minor Hill, Goodspring, Leoma, Frankewing and Prospect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3501 8758 3514 8752 3521 8733 3534 8698
      3541 8686 3541 8664 3537 8662 3536 8660
      3533 8660 3531 8668 3525 8675 3526 8683
      3499 8684
TIME...MOT...LOC 1748Z 246DEG 36KT 3540 8672 3525 8689 3503 8749 

HAIL...1.00IN
WIND...60MPH
 
$$

10
340 
WWUS54 KOHX 011801
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
1201 PM CST WED MAR 1 2017

TNC055-099-117-011815-
/O.CON.KOHX.SV.W.0021.000000T0000Z-170301T1815Z/
Marshall TN-Lawrence TN-Giles TN-
1201 PM CST WED MAR 1 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CST
FOR SOUTHEASTERN MARSHALL...SOUTHEASTERN LAWRENCE AND GILES
COUNTIES...

At 1200 PM CST, severe thunderstorms were located along a line
extending from 6 miles southwest of Shelbyville to near Petersburg to
7 miles northeast of Lexington, moving east at 65 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...
Pulaski, Ardmore, Elkton, Minor Hill, Goodspring, Frankewing and
Prospect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3500 8738 3514 8729 3527 8699 3532 8683
      3537 8662 3536 8660 3533 8660 3531 8668
      3525 8675 3526 8683 3499 8684
TIME...MOT...LOC 1800Z 269DEG 58KT 3540 8651 3525 8668 3503 8728 

HAIL...1.00IN
WIND...60MPH
 
$$

10

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 28, 11:02 PM CSTTornado WarningOHXStewart23 min
Mar 1, 5:27 AM CSTSpecial Weather StatementOHXHickman, Houston, Humphreys, Montgomery, Stewart48 min
Mar 1, 5:54 AM CSTSevere Thunderstorm WarningOHXDickson, Hickman, Houston, Humphreys, Montgomery, Perry and 1 more36 min
Mar 1, 6:04 AM CSTSevere Thunderstorm WarningOHXHickman, Lewis, Perry41 min
Mar 1, 6:24 AM CSTSevere Thunderstorm WarningOHXCheatham, Davidson, Dickson, Hickman, Houston, Humphreys and 3 more36 min
Mar 1, 6:26 AM CSTSevere Thunderstorm WarningOHXMontgomery, Robertson34 min
Mar 1, 6:55 AM CSTSevere Thunderstorm WarningOHXDavidson, Robertson, Rutherford, Sumner, Trousdale, Williamson and 1 more35 min
Mar 1, 7:03 AM CSTTornado WarningOHXDavidson, Rutherford, Williamson, Wilson27 min
Mar 1, 7:26 AM CSTSevere Thunderstorm WarningOHXCannon, Clay, DeKalb, Jackson, Macon, Rutherford and 4 more34 min
Mar 1, 7:28 AM CSTTornado WarningOHXSmith, Wilson32 min
Mar 1, 7:49 AM CSTTornado WarningOHXClay, Macon26 min
Mar 1, 7:52 AM CSTTornado WarningOHXDeKalb, Putnam, Smith23 min
Mar 1, 7:58 AM CSTSevere Thunderstorm WarningOHXCannon, Clay, DeKalb, Jackson, Macon, Overton and 5 more32 min
Mar 1, 8:12 AM CSTTornado WarningOHXJackson, Overton, Putnam33 min
Mar 1, 8:17 AM CSTSpecial Weather StatementOHXLewis28 min
Mar 1, 8:20 AM CSTSevere Thunderstorm WarningOHXClay, Cumberland, DeKalb, Fentress, Jackson, Overton and 3 more25 min
Mar 1, 8:43 AM CSTSevere Thunderstorm WarningOHXCumberland, Fentress, Overton, Pickett, Putnam, White36 min
Mar 1, 8:45 AM CSTSpecial Weather StatementOHXLewis45 min
Mar 1, 9:42 AM CSTSpecial Weather StatementOHXHickman, Lewis33 min
Mar 1, 9:46 AM CSTSpecial Weather StatementOHXCannon, Rutherford44 min
Mar 1, 9:57 AM CSTAreal Flood AdvisoryOHXLewis, Perry, Wayne2 hr
Mar 1, 10:18 AM CSTSpecial Weather StatementOHXCannon, White42 min
Mar 1, 10:18 AM CSTSevere Thunderstorm WarningOHXLawrence, Wayne42 min
Mar 1, 10:22 AM CSTSpecial Weather StatementOHXMarshall38 min
Mar 1, 10:35 AM CSTSevere Thunderstorm WarningOHXBedford, Marshall, Maury, Rutherford, Williamson25 min
Mar 1, 10:59 AM CSTSpecial Weather StatementOHXMarshall46 min
Mar 1, 11:03 AM CSTSevere Thunderstorm WarningOHXLawrence, Wayne27 min
Mar 1, 11:43 AM CSTSpecial Weather StatementOHXBedford, Coffee47 min
Mar 1, 12:13 PM CSTSevere Thunderstorm WarningOHXGiles21 min
Mar 1, 12:18 PM CSTSpecial Weather StatementOHXCumberland27 min
Mar 1, 12:42 PM CSTSpecial Weather StatementOHXGrundy33 min
Mar 1, 12:46 PM CSTSevere Thunderstorm WarningOHXCoffee, Grundy29 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2017Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.