Alert archive / Tennessee / Tornado Warnings in 2002

Tornado Warning 10, NWS Memphis, TN

April 28, 2002Obion County, Tennessee

NWS Memphis, TN issued this tornado warning at Apr 28, 2002, 2:42 AM CDT for Obion County, Tennessee. It was in force for 33 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 28, 2002, 2:42 AM CDT (07:42 UTC)
Expired
Apr 28, 2002, 3:15 AM CDT
In force
33 min
Issued by
NWS Memphis, TN
Area
Counties, with a storm outline in the text

County Obion County, TN

The radar

The Paducah radar (KPAH), 79 km from the middle of the area, began a volume at 07:44 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

TimeReportWhereRemark
Apr 28, 3:14 AM CDTHail 0.75Union City, TN

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 28, 2:00 AM CDTTornado WatchSPC5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 7.7 hours before the alert went out and 192 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, Little Rock, AR at 00:00Z on 2002-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1817 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2002-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 480 square meters per square second.1939587897117Sfc1 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
1817 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
653 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
480 m²/s²
0-3 km storm-relative helicity
529 m²/s²
Significant tornado parameter
6.4
Supercell composite
25.1

Open this sounding in Storm Lab

The text

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

172 
WFUS54 KMEG 280742
TORMEM
TNC131-280815-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
241 AM CDT SUN APR 28 2002

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  OBION COUNTY IN NORTHWEST TENNESSEE

* UNTIL 315 AM CDT.

* AT 240 AM CDT...WEATHER RADAR INDICATED A DEVELOPING TORNADO 5
  MILES NORTHWEST OF SAMBURG...MOVING EAST AT 50 MPH.

* CITIES IN THE PATH OF THIS TORNADO THROUGH 315 AM CDT INCLUDE...
  SAMBURG...
  CLAYTON...
  WOODLAND MILLS...
  UNION CITY...

.IF YOU ARE NEAR THE PATH OF THIS TORNADO...TAKE COVER IN AN INTERIOR
ROOM ON THE LOWEST FLOOR. PROTECT YOUR BODY FROM FLYING DEBRIS.

.STAY TUNED TO THIS NATIONAL WEATHER SERVICE BROADCAST FOR THE LATEST
UPDATES AND INFORMATION.

LAT...LON 3651 8938 3634 8939 3636 8899 3652 8891

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 2:31 AM CDTTornado WarningMEGLake29 min
Apr 28, 3:14 AM CDTTornado WarningMEGWeakley46 min
Apr 28, 3:23 AM CDTTornado WarningMEGDyer52 min
Apr 28, 3:34 AM CDTTornado WarningMEGHenry41 min
Apr 28, 3:56 AM CDTTornado WarningMEGGibson49 min
Apr 28, 4:23 AM CDTTornado WarningMEGCarroll47 min
Apr 28, 3:38 PM CDTSevere Thunderstorm WarningMEGDecatur37 min

Nearby

Tornado Warnings in Tennessee, 2002Every tornado warning in 2002Tornadoes 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.