Alert archive / Tennessee / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 8, NWS Nashville, TN

May 18, 1986Davidson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 18, 1986, 4:25 PM CDT for Davidson County, Tennessee. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
May 18, 1986, 4:25 PM CDT (21:25 UTC)
Expired
May 18, 1986, 5:30 PM CDT
In force
65 min
Issued by
NWS Nashville, TN
Area
Whole counties

County Davidson 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, 9.4 hours before the alert went out and 17 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 1986-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 54 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 1986-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 square meters per square second.193958Sfc1 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
54 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
841 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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, May 18, 3:46 PM CDT, 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  NASHVILLE TN
345 PM CDT SUN MAY 18 1986

... TORNADO WATCH NUMBER 196 IS IN EFFECT UNTIL 8 PM CDT TONIGHT

HEAVY THUNDERSTORM ACTIVITY WAS INDICATED BY RADAR IN NORTHEASTERN
GILES COUNTY.  THIS ACTIVITY IS MOVING NORTHEAST AT 20 TO 25 MPH
AND WILL SHORTLY MOVE INTO MAURY COUNTY.  PERSONS SHOULD KEEP ALERT
TO CHANGING WEATHER AND IF THREATENING CONDITIONS ARE SIGHTED BE
PREPARED TO MOVE TO A PLACE: OF SAFETY.

REMEMBER A TORNADO WATCH MEANS THAT WEATHER CONDITIONS ARE FAVORABLE
FOR THE FORMATION OF TORNADOS.

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.