Alert archive / Tennessee / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 141, NWS Atlanta, GA

May 18, 1995Grundy County, Marion County, Sequatchie County, Tennessee

NWS Atlanta, GA issued this severe thunderstorm warning at May 18, 1995, 8:19 PM CDT for Grundy County, Marion County, Sequatchie County, Tennessee. It was in force for 26 min.

The area

The counties it named.

The facts

Issued: May 18, 1995, 8:19 PM CDT (01:19 UTC)
Expired: May 18, 1995, 8:45 PM CDT
In force: 26 min
Issued by: NWS Atlanta, GA
Area: Whole counties

Counties Grundy County, TN, Marion County, TN, Sequatchie County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 1.3 hours before the alert went out and 130 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: 1185 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 942 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 371 m²/s²
0-3 km storm-relative helicity: 460 m²/s²
Significant tornado parameter: 3.0
Supercell composite: 17.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCHA 190118
SVRCHA
TNC061-115-153-190145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHATTANOOGA TN
919 PM EDT (819 PM CDT) THU MAY 18 1995
 
THE NATIONAL WEATHER SERVICE IN CHATTANOOGA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 PM EDT (845 PM CDT)
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST TENNESSEE
 
   ...SOUTHEASTERN GRUNDY COUNTY...NORTHERN MARION COUNTY
   ...SEQUATCHIE COUNTY
 
AT AT 920 PM EDT WEATHER RADAR AT MORRISTOWN INDICATED A SMALL
CLUSTER OF SEVERE THUNDERSTORMS ALONG THE GRUNDY MARION COUNTY
LINE...THE THUNDERSTROMS ARE MOVING TOWARD THE EAST NORTHEAST
AT AROUND 30 MPH.  THE THUNDERSTORMS WILL MOVE INTO SEQUATCHIE
COUNTY WITH 15 MINUTES OR SO.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 18, 7:05 PM CDT	Severe Thunderstorm Warning	FFC	Hamilton	25 min
May 18, 7:41 PM CDT	Severe Thunderstorm Warning	FFC	Bledsoe, Rhea	49 min
May 18, 7:52 PM CDT	Severe Thunderstorm Warning	FFC	McMinn, Meigs	38 min
May 18, 7:59 PM CDT	Severe Thunderstorm Warning	FFC	Bradley	31 min
May 18, 8:46 PM CDT	Tornado Warning	FFC	Van Buren	29 min
May 18, 8:58 PM CDT	Severe Thunderstorm Warning	FFC	Hamilton, Meigs, Rhea	32 min
May 18, 9:09 PM CDT	Severe Thunderstorm Warning	FFC	Bledsoe	36 min
May 18, 9:25 PM CDT	Severe Thunderstorm Warning	FFC	McMinn, Meigs, Rhea	50 min
May 18, 9:31 PM CDT	Tornado Warning	FFC	McMinn	29 min
May 18, 10:24 PM CDT	Severe Thunderstorm Warning	FFC	Hamilton	36 min
May 18, 10:43 PM CDT	Severe Thunderstorm Warning	FFC	Bradley, McMinn, Meigs	32 min
May 18, 10:57 PM CDT	Severe Thunderstorm Warning	FFC	Polk	33 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1995 Every severe thunderstorm warning in 1995

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.