Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 49, NWS Memphis, TN

April 24, 2002Shelby County, Tennessee; Crittenden County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Apr 24, 2002, 8:49 PM CDT for Shelby County, Tennessee; Crittenden County, Arkansas. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 24, 2002, 8:49 PM CDT (01:49 UTC)
Expired
Apr 24, 2002, 9:45 PM CDT
In force
56 min
Issued by
NWS Memphis, TN
Area
Counties, with a storm outline in the text

Counties Crittenden County, AR, Shelby County, TN

The radar

The Memphis radar (KNQA), 23 km from the middle of the area, began a volume at 01:49 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 24, 7:45 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.8 hours before the alert went out and 57 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 2002-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1586 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 2002-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.1939587897Sfc1 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
1586 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
1113 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.5

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMEG 250149
SVRMEM
ARC035-TNC157-250245-

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

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CRITTENDEN COUNTY IN EASTERN ARKANSAS
  SHELBY COUNTY IN SOUTHWEST TENNESSEE

* UNTIL 945 PM CDT.

* AT 845 PM CDT...WEATHER RADAR INDICATED A SEVERE THUNDERSTORM 7
  MILES SOUTHWEST OF GILMORE...MOVING SOUTHEAST AT 40 MPH.

* CITIES IN THE PATH OF THIS STORM THROUGH 945 PM CDT INCLUDE...
  TURRELL...
  GILMORE...
  JERICHO...
  MEMPHIS...
  FRAYSER...
  MILLINGTON...
  ELLENDALE...
  BARTLETT...
  LAKELAND...

.A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...A
SEVERE THUNDERSTORM CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY.

.DESTRUCTIVE HAIL IS POSSIBLE WITH THIS STORM. IF YOU ARE IN THE 
PATH OF THIS STORM...MOVE TO A STURDY SHELTER

LAT...LON 3546 9044 3529 9050 3506 8963 3533 8964

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 7:13 PM CDTSevere Thunderstorm WarningMEGObion32 min
Apr 24, 7:48 PM CDTTornado WarningMEGDyer, Lake27 min
Apr 24, 8:16 PM CDTTornado WarningMEGDyer29 min
Apr 24, 8:31 PM CDTSevere Thunderstorm WarningMEGCarroll29 min
Apr 24, 8:38 PM CDTSevere Thunderstorm WarningMEGCrockett, Gibson, Madison37 min
Apr 24, 8:42 PM CDTSevere Thunderstorm WarningMEGCrockett, Gibson, Madison33 min
Apr 24, 8:57 PM CDTSevere Thunderstorm WarningMEGShelby48 min
Apr 24, 9:11 PM CDTSevere Thunderstorm WarningMEGCarroll, Haywood, Henderson, Madison49 min
Apr 24, 9:36 PM CDTSevere Thunderstorm WarningMEGChester, Decatur39 min
Apr 24, 9:55 PM CDTSevere Thunderstorm WarningMEGHardin, McNairy65 min
Apr 24, 7:26 PM CDTSevere Thunderstorm WarningMEGCraighead, Poinsett34 min
Apr 24, 8:00 PM CDTSevere Thunderstorm WarningMEGPoinsett45 min
Apr 24, 9:41 PM CDTSevere Thunderstorm WarningMEGLee49 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2002Severe Thunderstorm Warnings in Arkansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.