Alert archive / Arkansas / Tornado Warnings in 1986

Tornado Warning 13, NWS Shreveport, LA

April 4, 1986Nevada County, Arkansas

NWS Shreveport, LA issued this tornado warning at Apr 4, 1986, 7:50 PM CST for Nevada County, Arkansas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Apr 4, 1986, 7:50 PM CST (01:50 UTC)
Expired
Apr 4, 1986, 8:50 PM CST
In force
60 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Nevada County, AR

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

Longview/Gregg, TX (KGGG), launched 00:00Z, 1.8 hours before the alert went out and 189 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, Longview/Gregg, TX at 00:00Z on 1986-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2157 joules per kilogram.LCLEL10008507005003002001001 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, Longview/Gregg, TX at 00:00Z on 1986-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.19395878Sfc1 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
2157 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1179 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.7

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.

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 4, 6:25 PM CSTTornado WarningSHVHempstead65 min
Apr 4, 7:10 PM CSTTornado WarningSHVLafayette, Miller60 min
Apr 4, 7:10 PM CSTTornado WarningSHVNevada60 min
Apr 4, 7:30 PM CSTSevere Thunderstorm WarningSHVLittle River70 min
Apr 4, 7:30 PM CSTSevere Thunderstorm WarningSHVHempstead70 min
Apr 4, 8:10 PM CSTSevere Thunderstorm WarningSHVLafayette, Miller80 min
Apr 4, 8:10 PM CSTSevere Thunderstorm WarningSHVColumbia, Nevada80 min
Apr 4, 8:30 PM CSTSevere Thunderstorm WarningSHVHempstead, Howard, Pike60 min
Apr 4, 9:20 PM CSTSevere Thunderstorm WarningSHVHempstead, Howard, Little River65 min
Apr 4, 9:20 PM CSTSevere Thunderstorm WarningSHVNevada65 min
Apr 4, 9:50 PM CSTSevere Thunderstorm WarningSHVSevier65 min
Apr 5, 2:25 AM CSTFlash Flood WarningSHVHempstead, Howard, Little River, Sevier3 hr
Apr 5, 2:25 AM CSTFlash Flood WarningSHVPike3 hr

Nearby

Tornado Warnings in Arkansas, 1986Every tornado warning in 1986Tornadoes 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.