Alert archive / Tennessee / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 124, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Apr 30, 1997, 9:38 PM CDT for Chester County, Tennessee. It was in force for 32 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 30, 1997, 9:38 PM CDT (02:38 UTC)
- Expired
- Apr 30, 1997, 10:10 PM CDT
- In force
- 32 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
County Chester County, TN
The radar
The Memphis radar (KNQA), 115 km from the middle of the area, began a volume at 02:40 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 30, 9:45 PM CDT | Hail 0.75 | Henderson, TN | |
| Apr 30, 9:45 PM CDT | Thunderstorm Wind | Henderson, TN | Several power lines 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
Little Rock, AR (KLZK), launched 00:00Z, 2.6 hours before the alert went out and 138 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2170 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
331 WUUS1 KMEM 010240 RRA SVRMEM TNC023-010310- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MEMPHIS TN 938 PM CDT WED APR 30 1997 THE NATIONAL WEATHER SERVICE IN MEMPHIS TN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1010 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WESTERN TENNESSEE ...CHESTER COUNTY AT 937 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS JUST SOUTHEAST OF MEDON. THIS STORM IS MOVING EAST AT 40 MPH AND WILL MOVE THROUGH HENDERSON BY 950 PM. THIS STORM PRODUCED QUARTER SIZE HAIL IN MEDON AT 935 PM. .WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. &
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 7:56 PM CDT | Severe Thunderstorm Warning | MEG | Shelby | 34 min |
| Apr 30, 8:07 PM CDT | Severe Thunderstorm Warning | MEG | Weakley | 33 min |
| Apr 30, 8:27 PM CDT | Severe Thunderstorm Warning | MEG | Henry | 48 min |
| Apr 30, 8:41 PM CDT | Severe Thunderstorm Warning | MEG | Shelby | 49 min |
| Apr 30, 8:44 PM CDT | Severe Thunderstorm Warning | MEG | Fayette | 31 min |
| Apr 30, 9:01 PM CDT | Severe Thunderstorm Warning | MEG | Hardeman | 49 min |
| Apr 30, 9:54 PM CDT | Severe Thunderstorm Warning | MEG | Hardeman | 31 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1997Every severe thunderstorm warning in 1997
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.