Alert archive / North Carolina / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 85, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Aug 11, 1986, 8:04 PM EDT for Johnston County, North Carolina. It was in force for 56 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 11, 1986, 8:04 PM EDT (00:04 UTC)
- Expired
- Aug 11, 1986, 9:00 PM EDT
- In force
- 56 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Johnston County, NC
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 11, 8:10 PM EDT | Thunderstorm Wind 0 | Johnston, NC |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.1 hours before the alert went out and 152 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.
- Mixed-layer CAPE
- 68 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 866 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KRDU 120004 SVRRDU NCC101-120100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 804 PM EDT MON AUG 11 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF NORTH CAROLINA...EASTERN JOHNSTON AT 800 PM A SEVERE THUNDERSTORM WAS SHOWN ON RADAR OVER SELMA IN JOHNSTON COUNTY. THIS STORM IS MOVING TO THE NORTH EAST AND SHOULD PASS SOUTH OF CLAYTON NEAR KENLEY. PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL... DAMAGING WINDS...FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN. REPORT ANY SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. DMD
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 11, 3:12 PM EDT, 4 hours 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 310 PM EDT SUN AUG 10 1986 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF THE NORTHWEST PIEDMONT OF NORTH CAROLINA UNTIL 900 PM... AT 305 PM RADAR SHOWED A LINE OF DEVELOPING THUNDERSTORMS FROM PILOT MOUNTAIN IN SURRY COUNTY THROUGH TAYLORSVILLE IN ALEXANDER COUNTY. THE HEAVIEST STORM IN THIS LINE WAS OVER SOUTHERN ALEXANDER COUNTY.. SOUTH OF TAYLORSVILLE. THE STORMS WERE MOVING EAST NORTHEAST AT 30 MPH. AS THESE STORMS CONTINUE TO MOVE EASTWARD ACROSS THE NORTHWEST PIEDMONT THIS AFTERNOON AND EVENING HAIL..DAMAGING WINDS..FREQUENT LIGHTNING AND VERY HEAVY DOWNPOURS ARE LIKELY TO DEVELOP. PEOPLE IN THE NORTHWEST PIEDMONT OF NORTH CAROLINA SHOULD BE ON THE LOOKOUT FOR DANGEROUS WEATHER CONDITIONS AND SHOULD TAKE SHELTER BEFORE THEY APPROACH. A SEVERE THUNDERSTORM WARNING CONTINUES IN EFFECT FOR ALAMANCE COUNTY UNTIL 400 PM. RBN
Special weather statement, Aug 11, 4:16 PM EDT, 3 hours 48 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 415 PM EDT SUN AUG 10 1986 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF THE NORTHWEST PIEDMONT OF NORTH CAROLINA UNTIL 900 PM... AT 410 PM RADAR SHOWED STRONG THUNDERSTORMS OVER THE NORTHERN MOUNTAINS..NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA. THE HEAVIEST STORMS WERE SOUTHEAST OF STATESVILLE..JUST WEST OF MOCKSVILLE AND BETWEEN BETWEEN HIGH POINT AND ASHEBORO. THE STORMS WERE MOVING NORTHEAST AT ABOUT 35 MPH. AS THESE STORMS CONTINUE TO MOVE EASTWARD ACROSS THE NORTHWEST PIEDMONT THIS AFTERNOON AND EVENING HAIL..DAMAGING WINDS..FREQUENT LIGHTNING AND VERY HEAVY DOWNPOURS ARE POSSIBLE. PEOPLE IN THE NORTHWEST PIEDMONT OF NORTH CAROLINA SHOULD BE ON THE LOOKOUT FOR DANGEROUS WEATHER CONDITIONS AND SHOULD TAKE SHELTER BEFORE THEY APPROACH. VERY HEAVY RAINS..FREQUENT LIGHTNING AND STRONG GUSTY WINDS ARE ALSO POSSIBLE IN THE NORTHERN MOU+NTAINS AND NORTHERN FOOTHILLS. PEOPLE THERE SHOULD ALSO BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND SHOULD TAKE SHELTER IF NECESSARY. RBN
Special weather statement, Aug 11, 5:27 PM EDT, 2 hours 37 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 528 PM EDT SUN AUG 10 1986 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF THE NORTHWEST PIEDMONT OF NORTH CAROLINA UNTIL 900 PM... AT 525 PM RADAR SHOWED STRONG THUNDERSTORMS OVER THE NORTHWEST PIEDMONT OF NORTH CAROLINA EXTENDING FROM CASWELL COUNTY..THROUGH GUILFORD AND NORTHERN RANDOLPH COUNTIES INTO SOUTHERN DAVIDSON COUNTY. THE STRONGEST STORMS WERE OVER CASWELL AND NORTHWEST RANDOLPH COUNTIES. THE STORMS WERE MOVING EAST AT ABOUT 35 MPH. AS THESE STORMS CONTINUE TO MOVE EASTWARD ACROSS THE NORTHWEST PIEDMONT THIS EVENING.. HAIL..DAMAGING WINDS..FREQUENT LIGHTNING AND VERY HEAVY DOWNPOURS ARE POSSIBLE. OVER AN INCH AND A HALF OF RAIN HAS FALLEN AT THE TRIAD REGIONAL AIRPORT BETWEEN 445 AND 525 PM. PERSONS IN THE NORTHWEST PIEDMONT OF NORTH CAROLINA SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND SHOULD TAKE SHELTER AS STORMS APPROACH.. RBN
Local storm report, Aug 11, 6:21 PM EDT, 1 hour 43 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
555 PM EDT MON AUG 11 1986
TIME EVENT
240PM EDT DIME SIZE HAIL REPORTED IN WILTON BY WILTON FIRE
DEPARTMENT...GRANVILLE COUNTY.
315 PM EDT TREES DOWN BETWEEN HILLSBOROUGH AND CHAPEL HILL.
330 PM EDT VAN BLOWN OFF ROAD NORTH OF CHAPEL HILL.
330 PM EDT NUMEROUS TREES DOWN ACROSS SOUTHEAST ORANGE COUNTY.
338 PM EDT MANY TREES DOWN, WIDESPREAD POWER OUTAGES, WINDOWS
BLOWN OUT OF 20 CARS, ONE LIGHTNING DEATH, ONE
PERSON ELECTROCUTED BY DOWN POWER LINES...ALL IN
OR NEAR CITY OF DURHAM.
440 PM EDT 3/4 INCH HAIL IN INGLESIDE...FRANKLIN COUNTY.
DMD$Local storm report, Aug 11, 6:41 PM EDT, 1 hour 23 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE GREENSBORO NC
640 PM EDT MON AUG 11 1986
ATTN SELS...
423 PM EDT 1423 CST COUPLE OF TREES DOWN IN CLEVELAND..NW ROWAN CNTY.
445 PM EDT TO 545 PM EDT 1.75 INCHES :OF RAIN AT GSO AIRPORT.
440 PM EDT TO 600 PM EDT 4.3 INCHES OF RAIN 6.2 MILES EAST OF GSO
AIRPORT IN GREEN VALLEY SECTION OF CITY OF GREENSBORO..BY
RAINFALL OBSERVER.
RBNNearby
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.