Alert archive / Tennessee / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 9, NWS Nashville, TN

July 28, 1986Franklin County, Lincoln County, Moore County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 28, 1986, 6:01 PM CDT for Franklin County, Lincoln County, Moore County, Tennessee. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Jul 28, 1986, 6:01 PM CDT (23:01 UTC)
Expired
Jul 28, 1986, 7:00 PM CDT
In force
59 min
Issued by
NWS Nashville, TN
Area
Whole counties

Counties Franklin County, TN, Lincoln County, TN, Moore County, TN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.0 hours before the alert went out and 107 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, Nashville Metro, TN at 12:00Z on 1986-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1525 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 1986-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.1939Sfc1 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
1525 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
901 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
191 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Jul 28, 12:06 PM CDT, 5 hours 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  NASHVILLE TN
1200 PM CDT MON JUL 28 1986

 ...STRONG THUNDERSTORMS BEDFORD AND COFFEE COUNTIES IN MIDDLE
TENNESSEE...

WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS 10 MILES
NORTH OF SHELBYVILLE IN BEDFORD COUNTY AND EXTENDED ACROSS
NORTHERN COFFEE COUNTY JUST NORTH OF MANCHESTER.  SMALL HAIL
AND STRONG GUSTY SURFACE WINDS IS POSSIBLE AS THEY CONTINUE
TO MOVE THROUGH BEDFORD AND COFFEE COUNTIES DURING THE NEXT
HALF HOUR.

THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR.

Nearby

Severe Thunderstorm Warnings in Tennessee, 1986Every severe thunderstorm warning in 1986

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.