Alert archive / North Carolina / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 69, NWS Raleigh, NC

August 2, 1986Franklin County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Aug 2, 1986, 8:50 PM EDT for Franklin County, North Carolina. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Aug 2, 1986, 8:50 PM EDT (00:50 UTC)
Expired
Aug 2, 1986, 9:45 PM EDT
In force
55 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Franklin County, NC

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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.8 hours before the alert went out and 145 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, Greensboro/Hi Pt, NC at 00:00Z on 1986-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 61 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, Greensboro/Hi Pt, NC at 00:00Z on 1986-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
61 J/kg
Mixed-layer CIN
-135 J/kg
Mixed-layer LCL
1741 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
66 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, Aug 2, 5:38 PM EDT, 3 hours 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
540 PM EDT SAT AUG 2 1986

AT 530 PM STRONG THUNDERSTORMS WERE DEVELOPING OVER MOORE, LEE AND
SOUTHERN CHATHAM COUNTIES. THE STRONGEST STORM WAS JUST NORTH OF
SANFORD. THESE STORMS WERE MOVING TO THE NORTHEAST AT 20 MPH. IF THESE
STORMS HOLD TOGETHER THEY SHOULD MOVE INTO SOUTHERN WAKE COUNTY BY
6 PM THIS EVENING.

OTHER STRONG THUNDERSTORMS WERE LOCATED JUST NORTH OF ROCKY MOUN	T
AND SHOULD CROSS NORTHERN EDGECOMBE COUNTY BY 630 PM.

STAY TUNED TO YOUR LOCAL RADIO OR TELEVISION STATION, OR TO NOAA WEATHER
RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS.

DMD

INI
Special weather statement, Aug 2, 6:52 PM EDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
650 PM EDT SAT AUG 2 1986

AT 635 PM STRONG THUNDERSTORMS CONTINUED OVER HARNETT COUNTY. THE
MOST INTENSE THUNDERSTORMS WERE JUST WEST OF DUNN. THESE STORMS WERE
MOVING TO THE EAST NORTHEAST AT 25 MPH AND WILL LIKELY MOVE OVER THE
CITIES OF DUNN AND BENSON BY 715 PM THIS EVENING.

ELSEWHERE IN THE STATE A SCATTERED LINE OF THUNDERSTORMS EXTENDED FROM
NORTH OF CHARLOTTE...TO NEAR GREENSBORO...TO ROXBORO. THIS LINE OF
THUNDERSTORMS WAS MOVING TO THE EAST AT 25 MPH.

THESE STORMS WILL LIKELY PRODUCE LOCALLY HEAVY RAIN...FREQUENT LIGHTNING
AND GUSTY WINDS. IF THEY INTENSIFY LATER THIS EVENING THEY COULD PRODUCE
DAMAGING WINDAS AND HAIL.

STAY TUNED TO YOUR LOCAL RADIO OR TELEVISION STATION, OR TO NOAA WEATHER
RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
DMD

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 2, 8:16 PM EDTSevere Thunderstorm WarningRAHDurham, Wake59 min
Aug 2, 8:35 PM EDTSevere Thunderstorm WarningRAHWarren55 min
Aug 2, 8:46 PM EDTSevere Thunderstorm WarningRAHHarnett59 min
Aug 2, 9:19 PM EDTSevere Thunderstorm WarningRAHWake56 min
Aug 2, 9:33 PM EDTSevere Thunderstorm WarningRAHNash57 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 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.