Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 233, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Aug 20, 2002, 3:46 PM CDT for Marshall County, Maury County, Tennessee. It was in force for 44 min. 3 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
- Aug 20, 2002, 3:46 PM CDT (20:46 UTC)
- Expired
- Aug 20, 2002, 4:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Nashville, TN
- Area
- Whole counties
Counties Marshall County, TN, Maury County, TN
The radar
The Nashville radar (KOHX), 85 km from the middle of the area, began a volume at 20:46 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 |
|---|---|---|---|
| Aug 20, 3:55 PM CDT | Hail 0.75 | Lewisburg, TN | EMA reported dime size hail. |
| Aug 20, 4:30 PM CDT | Thunderstorm Wind 50 E | Columbia, TN | News story concerning trees were blown down at Maury County Park. The park lost 6 Bradford Pear trees. There was damage to other trees in the park. |
| Aug 20, 4:40 PM CDT | Thunderstorm Wind 50 E | Cornersville, TN | Law enforcement reported trees were down. Several small trees near the Cornersville Post Office were heavily damaged. |
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 12:00Z, 8.8 hours before the alert went out and 71 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.
- Mixed-layer CAPE
- 3175 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 719 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- -62 m²/s²
- 0-3 km storm-relative helicity
- -39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 20, 2:32 PM CDT, 1 hour 14 minutes earlier.
Area forecast discussion, Aug 20, 2:32 PM CDT, 1 hour 14 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 230 PM CDT TUE AUG 2002 CURRENT...REMNANTS OF MCS DEPOSITED BOUNDARY WHICH HAS TOUCHED OFF SOME CONVECTION OVER FAR S. THIS WILL DIE OFF THIS EVE BUT WILL MENTION FOR EARLY EVE ZONES. TEMPS IN 85 TO 90 RANGE FOR MOST PART. ASSOCIATED VORT MAX FROM AFOREMENTIONED MCS WILL HOVER NEAR PAH THRU WED MORNING AND THEN MOVE NE. DONT EXPECT CWA TO BE AFFECTED. DRY DAY TOMORROW THEN ISOLATED STUFF THU AS DEEPER MOISTURE COMES INTO PLAY ACCOMPANIED BY WARMER TEMPS AS H5 RIDGE BUILDS. AS FOR TEMPS... WILL BUY THE WARMER ETA MAXS. BNA BB 72/95/73/95 -1-2 CSV BB 67/89/67/89 -1-2 .BNA...NONE. MAG
In the hours before
Local storm report, Aug 20, 3:16 PM CDT, 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE,TN
316 PM CDT TUE AUG 20 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0240 PM COLLINWOOD TN WIND DAMAGE
08/20/02 WAYNE SEVERAL TREES BLOWN DOWN
NEAR COLLINWOOD.
DRMLocal storm report, Aug 20, 3:16 PM CDT, 30 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NASHVILLE,TN
316 PM CDT TUE AUG 20 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0240 PM COLLINWOOD TN WIND DAMAGE
08/20/02 WAYNE SEVERAL TREES BLOWN DOWN
NEAR COLLINWOOD.
REPORTED BY WAYNE COUNTY
HIGHWAY DEPT.
DRMThe office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 2:01 PM CDT | Severe Thunderstorm Warning | OHX | Wayne | 29 min |
| Aug 20, 2:26 PM CDT | Flash Flood Warning | OHX | Wayne | 2 hr |
| Aug 20, 2:30 PM CDT | Severe Thunderstorm Warning | OHX | Wayne | 30 min |
| Aug 20, 3:03 PM CDT | Severe Thunderstorm Warning | OHX | Wayne | 42 min |
| Aug 20, 4:32 PM CDT | Severe Thunderstorm Warning | OHX | Marshall, Maury | 28 min |
| Aug 20, 5:21 PM CDT | Severe Thunderstorm Warning | OHX | Giles | 39 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2002Every 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.