Alert archive / Tennessee / Excessive Heat Warnings in 2023

Excessive Heat Warning 2, NWS Nashville, TN

June 29, 202310 counties in Tennessee

NWS Nashville, TN issued this excessive heat warning at Jun 29, 2023, 1:49 PM CDT for 10 counties in Tennessee. It took effect at Jun 30, 2023, 11:00 AM CDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 29, 2023, 1:49 PM CDT (18:49 UTC)
In effect from
Jun 30, 2023, 11:00 AM CDT
Expired
Jun 30, 2023, 8:00 PM CDT
In force
9 hr
Issued by
NWS Nashville, TN

Counties Dickson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lawrence County, TN, Lewis County, TN, Montgomery County, TN, Perry County, TN, Stewart County, TN, Wayne County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.8 hours before the alert went out and 94 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 2023-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 466 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2023-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.19395878Sfc1 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
466 J/kg
Mixed-layer CIN
-317 J/kg
Mixed-layer LCL
1302 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 11:30 AM CDTSevere Thunderstorm WarningOHXRobertson, Sumner45 min
Jun 29, 11:54 AM CDTSpecial Weather StatementOHXMontgomery51 min
Jun 29, 12:15 PM CDTSpecial Weather StatementOHXDavidson, Sumner, Wilson45 min
Jun 29, 12:25 PM CDTSevere Thunderstorm WarningOHXDavidson, Sumner, Wilson24 min
Jun 29, 12:43 PM CDTSpecial Weather StatementOHXCheatham47 min
Jun 29, 1:06 PM CDTAreal Flood AdvisoryOHXMontgomery, Robertson3 hr
Jun 29, 1:09 PM CDTAreal Flood AdvisoryOHXSumner, Wilson3 hr
Jun 29, 1:33 PM CDTSevere Thunderstorm WarningOHXCannon, Rutherford, Williamson27 min
Jun 29, 1:48 PM CDTSevere Thunderstorm WarningOHXMarshall, Maury, Williamson27 min
Jun 29, 1:56 PM CDTSevere Thunderstorm WarningOHXBedford, Coffee, Marshall, Rutherford34 min
Jun 29, 2:11 PM CDTSevere Thunderstorm WarningOHXBedford, Marshall, Maury34 min
Jun 29, 2:54 PM CDTSpecial Weather StatementOHXLewis36 min
Jun 29, 2:58 PM CDTSpecial Weather StatementOHXStewart32 min
Jun 29, 3:11 PM CDTSpecial Weather StatementOHXLawrence34 min
Jun 29, 3:15 PM CDTSevere Thunderstorm WarningOHXGiles, Lawrence45 min
Jun 29, 3:23 PM CDTSevere Thunderstorm WarningOHXStewart37 min
Jun 29, 3:28 PM CDTSevere Thunderstorm WarningOHXLawrence, Wayne47 min
Jun 29, 3:57 PM CDTSevere Thunderstorm WarningOHXGiles, Lawrence33 min
Jun 29, 4:15 PM CDTSevere Thunderstorm Warning Considerable damage threatOHXLawrence15 min

Nearby

Excessive Heat Warnings in Tennessee, 2023Every excessive heat warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.