Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 230, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Aug 20, 2002, 2:01 PM CDT for Wayne County, Tennessee. It was in force for 29 min. 1 report 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, 2:01 PM CDT (19:01 UTC)
- Expired
- Aug 20, 2002, 2:30 PM CDT
- In force
- 29 min
- Issued by
- NWS Nashville, TN
- Area
- Whole counties
County Wayne County, TN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 20, 2:40 PM CDT | Thunderstorm Wind 50 E | Collinwood, TN | TDOT reported several trees were blown down. |
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, 7.0 hours before the alert went out and 146 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
The text
As transmitted, in the capitals the NWS used until 2016.
785 WUUS54 KOHX 201901 SVRBNA TNC181-201930- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NASHVILLE TN 200 PM CDT TUE AUG 20 2002 THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN WAYNE COUNTY IN TENNESSEE * UNTIL 230 PM CDT * AT 151 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES NORTHEAST OF COLLINWOOD...OR 9 MILES SOUTHEAST OF WAYNESBORO. THE STORM WAS NEARLY STATIONARY. * THE SEVERE THUNDERSTORM WILL BE NEAR... COLLINWOOD AROUND 230 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. $$ 13
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, 9:31 AM CDT, 4 hours 30 minutes earlier.
Area forecast discussion, Aug 20, 9:31 AM CDT, 4 hours 30 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 930 AM CDT TUE AUG 2002 REMNANTS OF DYING MCS ABOUT TO HEAVE LAST BREATH. THIS FEATURE COULD DEPOSIT BOUNDARY LATER TODAY FOR PLATEAU AND S...AND BNA SOUNDING VERY UNSTABLE. WILL UPDATE ZONES TO INCREASE POPS SOME AREAS AND LOWER OTHERS. .BNA...NONE. MAG
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 3:46 PM CDT | Severe Thunderstorm Warning | OHX | Marshall, Maury | 44 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.