Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 29, NWS Nashville, TN

April 24, 2002Macon County, Trousdale County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Apr 24, 2002, 10:17 PM CDT for Macon County, Trousdale County, Tennessee. It was in force for 43 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 24, 2002, 10:17 PM CDT (03:17 UTC)
Expired: Apr 24, 2002, 11:00 PM CDT
In force: 43 min
Issued by: NWS Nashville, TN
Area: Whole counties

Counties Macon County, TN, Trousdale County, TN

The radar

The Nashville radar (KOHX), 49 km from the middle of the area, began a volume at 03:19 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

Time	Report	Where	Remark
Apr 24, 10:35 PM CDT	Thunderstorm Wind 62 E	Lafayette, TN	Spotter estimated 70 mph wind gust.
Apr 24, 10:35 PM CDT	Thunderstorm Wind 60 E	Lafayette, TN	Sheriff reported a roof blown off a house on Highland Road and Owens Rd.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 3.3 hours before the alert went out and 59 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 266 J/kg
Mixed-layer CIN: -221 J/kg
Mixed-layer LCL: 1047 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 403 m²/s²
0-3 km storm-relative helicity: 458 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KOHX 250317
SVRBNA
TNC111-169-250400-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1017 PM CDT WED APR 24 2002

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MACON COUNTY IN TENNESSEE
  TROUSDALE COUNTY IN TENNESSEE

* UNTIL 1100 PM CDT

* AT 1008 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES WEST OF LAFAYETTE...MOVING EAST AT 35
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAFAYETTE AROUND 1025 PM CDT
  RED BOILING SPRINGS AROUND 1040 PM CDT

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY
LIGHTNING.

$$

LAT...LON 3659 8624 3641 8626 3636 8584 3657 8575

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 9:09 PM CDT	Severe Thunderstorm Warning	OHX	Smith	21 min
Apr 24, 9:23 PM CDT	Severe Thunderstorm Warning	OHX	Jackson, Putnam	37 min
Apr 24, 9:30 PM CDT	Severe Thunderstorm Warning	OHX	Jackson, Putnam	30 min
Apr 24, 9:56 PM CDT	Severe Thunderstorm Warning	OHX	Perry	34 min
Apr 24, 9:59 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland	31 min
Apr 24, 10:24 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	36 min
Apr 24, 10:45 PM CDT	Severe Thunderstorm Warning	OHX	Jackson	45 min
Apr 24, 11:13 PM CDT	Severe Thunderstorm Warning	OHX	Putnam	47 min
Apr 24, 11:45 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland	45 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2002 Every severe thunderstorm warning in 2002

Sources

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