Alert archive / North Carolina / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 75, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Aug 11, 1986, 2:41 PM EDT for Franklin County, North Carolina. It was in force for 64 min.
The area
The counties it named.
The facts
- Issued
- Aug 11, 1986, 2:41 PM EDT (18:41 UTC)
- Expired
- Aug 11, 1986, 3:45 PM EDT
- In force
- 64 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 12:00Z, 6.7 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.
- Mixed-layer CAPE
- 688 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 762 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
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
Local storm report, Aug 11, 10:33 AM EDT, 4 hours 8 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE GREENSBORO NC
1035 AN EDT MON AUG 11 1986
ATTN SELS...
...INFORMATION IS DAMAGE THAT OCCURRED 8/10/1986...
605 PM EDT 1605 CST..IN HOLLY SPRINGS..SURRY COUNTY NC..ROOF BLOWN OFF
CINDER BLOCK BLDG THAT HAD BEEN CONVERTED TO A CHURCH. ROOF LANDED
IN PARKING AREA. CAUSED $15,000 DAMAGE..MOSTLY TO 3 CARS THAT WERE
HIT BY THE ROOF DEBRIS. FEW TREES ALSO UPROOTED. EMERGENCY MNGMT
INSPECTED THE AREA AND SAID CAUSED BY STRAIGHT LINE WINDS.
RBNSpecial weather statement, Aug 11, 1:49 PM EDT, 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC 147 PM EDT MON AUG 11 1986 ...THUNDERSTORMS BEGINNING TO DEVELOP ACROSS NORTH CAROLINA... AT 140 PM EDT.. WEATHER RADAR SHOWED SCATTERED THUNDERSTORMS DEVELOPING OVER THE PIEDMONT..FOOTHILLS AND MOUNTAINS OF NORTH CAROLINA. IN THE NORTHEAST PIEDMONT.. AN INTENSE THUNDERSTORM HAS DEVELOPED RAPIDLY NEAR THE DURHAM-GRANVILLE COUNTY LINE AND IS LIKELY TO AFFECT SOUTHERN GRANVILLE COUNTY BY 230 PM. ANOTHER STRONG THUNDERSTORM HAS BEEN DETECTED JUST SOUTHWEST OF KERR LAKE NORTH OF HENDERSON. THESE THUNDERSTORMS HAVE BEEN MOVING NORTHEAST AT 25 MILES AN HOUR. PEOPLE IN THE PATH OF THESE STORMS MAY EXPERIENCE INTENSE LIGHTNING ..SUDDEN GUSTY WIND.. AND POSSIBLY SOME HAIL. ALSO HEAVY RAIN MAY CAUSE HAZARDOUS DRIVING BECAUSE OF REDUCED VISIBILITY AND PONDING OF WATER ON HIGHWAYS. LISTN TO LOCAL RADIO..TV..OR WEATHER RADIO FOR LATER STATEMENTS OF POSSIBLE WARNINGS. RFG
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 2:06 PM EDT | Severe Thunderstorm Warning | RAH | Granville, Vance | 69 min |
| Aug 11, 2:57 PM EDT | Severe Thunderstorm Warning | RAH | Orange | 43 min |
| Aug 11, 3:26 PM EDT | Severe Thunderstorm Warning | RAH | Durham | 34 min |
| Aug 11, 3:45 PM EDT | Severe Thunderstorm Warning | RAH | Wake | 30 min |
| Aug 11, 4:17 PM EDT | Severe Thunderstorm Warning | RAH | Halifax | 33 min |
| Aug 11, 4:20 PM EDT | Severe Thunderstorm Warning | RAH | Franklin | 40 min |
| Aug 11, 4:53 PM EDT | Severe Thunderstorm Warning | RAH | Halifax | 67 min |
| Aug 11, 5:44 PM EDT | Severe Thunderstorm Warning | RAH | Orange | 56 min |
| Aug 11, 7:12 PM EDT | Severe Thunderstorm Warning | RAH | Wake | 48 min |
| Aug 11, 7:29 PM EDT | Severe Thunderstorm Warning | RAH | Greene, Pitt | 61 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.