Alert archive / Tennessee / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 229, NWS Memphis, TN

October 24, 2001Carroll County, Madison County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Oct 24, 2001, 5:55 PM CDT for Carroll County, Madison County, Tennessee. It was in force for 50 min. 3 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Oct 24, 2001, 5:55 PM CDT (22:55 UTC)
Expired: Oct 24, 2001, 6:45 PM CDT
In force: 50 min
Issued by: NWS Memphis, TN
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Carroll County, TN, Madison County, TN

The radar

The Memphis radar (KNQA), 119 km from the middle of the area, began a volume at 22:58 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
Oct 24, 6:00 PM CDT	Thunderstorm Wind	Mc Kenzie, TN	The roof to a business was ripped off. Several trees were knocked down.
Oct 24, 6:10 PM CDT	Thunderstorm Wind	Jackson, TN	Several trees fell on a house.
Oct 24, 6:15 PM CDT	Hail 0.75	Huntersville, 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.

Issued	Product	Office	Lasted
Oct 24, 1:45 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.9 hours before the alert went out and 159 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 753 J/kg
Mixed-layer CIN: -148 J/kg
Mixed-layer LCL: 825 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

353 
WUUS54 KMEG 242257
SVRMEM
TNC017-075-113-242345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
555 PM CDT WED OCT 24 2001

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CARROLL COUNTY IN NORTHWEST TENNESSEE
  EASTERN HAYWOOD COUNTY IN SOUTHWEST TENNESSEE
  MADISON COUNTY IN SOUTHWEST TENNESSEE

* UNTIL 645 PM CDT.

* AT 553 PM CDT...WEATHER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS FROM NEAR MCKENZIE TO HUMBOLDT TO                    
  DANCYVILLE...MOVING EAST AT 55 MPH. TREES HAVE BEEN REPORTED WITH 
  THESE STORMS.

* CITIES IN THE PATH OF THIS STORM THROUGH 645 PM CDT INCLUDE...
  CEDAR GROVE...MIDDLE FORK...
  CLARKSBURG...HUNTINGDON...
  BUENA VISTA...BRUCETON...
  JACKSON... 

.THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER IN A STURDY BUILDING.

.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.

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

LAT...LON 3615 8865 3585 8876 3568 8909 3543 8932
          3546 8879 3577 8857 3587 8827 3616 8820

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 Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 24, 3:40 PM CDT, 2 hours 15 minutes earlier.

Area forecast discussion, Oct 24, 3:40 PM CDT, 2 hours 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEMPHIS TN
340 PM CDT WED OCT 24 2001

THE STRONG COLD FRONT CURRENTLY APPROACHING OUR NW COUNTIES WILL
MOVE THROUGH THE ENTIRE CWA FROM NOW THROUGH LATE EVENING. A LINE OF
TSTMS WILL FOLLOW THE FRONT FROM W TO E THROUGH THE EVENING. EXPECT
AN ABRUPT DROP IN TEMPS BEHIND THE FRONT LATER TNT.

THE REST OF THE FCST PERIOD LOOKS DRY WITH COOLER THAN NORMAL TEMPS.

PRELIM VALUES
MEM 47/63/38/63 5000
MKL 44/60/33/60 8000
JBR 43/61/35/62 1000
TUP 49/65/36/62 5000

.MEG...WIND ADVISORY ALLOWED TO EXPIRE.

012

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 4:40 PM CDT	Severe Thunderstorm Warning	MEG	Lake	35 min
Oct 24, 4:52 PM CDT	Severe Thunderstorm Warning	MEG	Dyer	38 min
Oct 24, 4:58 PM CDT	Severe Thunderstorm Warning	MEG	Lauderdale, Tipton	47 min
Oct 24, 5:09 PM CDT	Severe Thunderstorm Warning	MEG	Obion, Weakley	51 min
Oct 24, 5:12 PM CDT	Severe Thunderstorm Warning	MEG	Shelby	63 min
Oct 24, 5:19 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Gibson	41 min
Oct 24, 5:19 PM CDT	Severe Thunderstorm Warning	MEG	Haywood	41 min
Oct 24, 5:40 PM CDT	Severe Thunderstorm Warning	MEG	Fayette	50 min
Oct 24, 5:55 PM CDT	Severe Thunderstorm Warning	MEG	Haywood	50 min
Oct 24, 6:01 PM CDT	Severe Thunderstorm Warning	MEG	Henry	29 min
Oct 24, 6:06 PM CDT	Severe Thunderstorm Warning	MEG	Hardeman	39 min
Oct 24, 6:21 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Henderson	39 min
Oct 24, 6:37 PM CDT	Severe Thunderstorm Warning	MEG	McNairy	38 min
Oct 24, 6:47 PM CDT	Severe Thunderstorm Warning	MEG	Decatur, Hardin	43 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2001 Every severe thunderstorm warning in 2001

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.