Alert archive / North Carolina / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 55, NWS Raleigh, NC

June 4, 1993Durham County, Orange County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jun 4, 1993, 7:02 PM EDT for Durham County, Orange County, North Carolina. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Jun 4, 1993, 7:02 PM EDT (23:02 UTC)
Expired
Jun 4, 1993, 8:00 PM EDT
In force
58 min
Issued by
NWS Raleigh, NC
Area
Whole counties

Counties Durham County, NC, Orange County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.0 hours before the alert went out and 81 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 12:00Z on 1993-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 774 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 12:00Z on 1993-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
774 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
1204 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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, Jun 4, 5:16 PM EDT, 1 hour 46 minutes before
NCZ003-005-042215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
514 PM EDT FRI JUN 4 1993

...SEVERE THUNDERSTORMS IN SOUTH CENTRAL VIRGINIA HEADING TOWARD
THE KERR LAKE AND LAKE GASTON AREA...

AT 513 PM RADAR INDICATED A CLUSTER OF SEVERE THUNDERSTORMS IN
EASTERN HALIFAX AND SOUTHERN CHARLOTTE COUNTIES IN SOUTH CENTRAL
VIRGINIA. THESE STORMS PRODUCED HALF DOLLAR SIZE HAIL AND WIND GUSTS
ESTIMATED AT 60 MPH AS THEY PASSED OVER THE VOLENS VIRGINIA RADAR SITE.

THE STORMS WERE MOVING TO THE SOUTHEAST AT 40 MPH AND WERE HEADING
TOWARD THE KERR LAKE AND LAKE GASTON AREAS OF NORTH CAROLINA.

IF THE STORMS CONTINUE TO REMAIN AS INTENSE...WARNINGS WILL LIKELY
BE ISSUED. IN THE MEANTIME...BOATERS ON KERR LAKE AND LAKE GASTON
SHOULD SEEK SAFE HARBOR IMMEDIATELY.
^
GAF
Local storm report, Jun 4, 6:00 PM EDT, 1 hour 2 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE  GREENSBORO NC
600 PM EDT FRI JUN 4 1993

ATTN SELS...

555 PM EDT..2155 Z UNCONFIRMED TORNADO..SPOTTER SAW TREE DAMAGE AND
     HEARD ROADING NOISE..BUT HAD NO VISUAL IDENTIFICATION.  FOR NOW WE
     WILL CALL STRAIGHT LINE WINDS BUT WILL CONTINUE TO INVESTIGATE.

557 PM EDT..2157 Z 10 TO 12 TREES DOWN WESTERN SURRY COUNTY.

RBN
Local storm report, Jun 4, 6:01 PM EDT, 1 hour 1 minute before
STORM REPORT
NATIONAL WEATHER SERVICE  GREENSBORO NC
600 PM EDT FRI JUN 4 1993

ATTN SELS...

555 PM EDT..2155 Z UNCONFIRMED TORNADO..SPOTTER SAW TREE DAMAGE AND
     HEARD ROADING NOISE..BUT HAD NO VIS
UAL IDENTIFICATION.  FOR NOW WE
     WILL CALL STRAIGHT LINE WINDS BUT WILL CONTINUE TO INVESTIGATE.

557 PM EDT..2157 Z 10 TO 12 TREES DOWN WESTERN SURRY COUNTY.

RBN
Local storm report, Jun 4, 6:39 PM EDT, 23 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE  GREENSBORO NC
638 PM EDT FRI JUN 4 1993

ATTN SELS...

625 PM EDT..2225 Z IREDELL COUNTY AUTHORITIES REPORTED 1 INCH HAIL.

635 PM EDT..2235 Z CASWELL COUNTY AUTH>ORITIES REPORTED SEVERAL TREES
            DOWN.

GTR
Local storm report, Jun 4, 6:54 PM EDT, 8 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE  GREENSBORO NC
654 PM EDT FRI JUN 4 1993

ATTN SELS...

638 PM EDT..2238 Z DAVIE COUNTY AUTHORITIES REPORTED 3 AND A HALF INCH
            HAIL.

GTR

ORITIES REPORTED SEVERAL TREES
            DOWN.

GTR
Local storm report, Jun 4, 6:54 PM EDT, 8 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE  GREENSBORO NC
654 PM EDT FRI JUN 4 1993

ATTN SELS...

638 PM EDT..2238 Z DAVIE COUNTY AUTHORITIES REPORTED 3 AND A HALF INCH
            HAIL.

GTR

ORITIES REPORTED SEVERAL TREES
            DOWN.

GTR

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 5:50 PM EDTSevere Thunderstorm WarningRAHVance, Warren55 min
Jun 4, 6:22 PM EDTTornado WarningRAHWarren38 min
Jun 4, 6:29 PM EDTSevere Thunderstorm WarningRAHGranville46 min
Jun 4, 6:41 PM EDTSevere Thunderstorm WarningRAHHalifax, Northampton64 min
Jun 4, 6:51 PM EDTTornado WarningRAHPerson54 min
Jun 4, 7:02 PM EDTSevere Thunderstorm WarningRAHFranklin, Granville, Vance58 min
Jun 4, 7:11 PM EDTTornado WarningRAHHalifax34 min
Jun 4, 7:23 PM EDTSevere Thunderstorm WarningRAHNash, Wake67 min
Jun 4, 7:25 PM EDTTornado WarningRAHOrange35 min
Jun 4, 7:30 PM EDTTornado WarningRAHChatham, Durham45 min
Jun 4, 7:37 PM EDTTornado WarningRAHWake53 min
Jun 4, 7:40 PM EDTTornado WarningRAHEdgecombe65 min
Jun 4, 7:48 PM EDTTornado WarningRAHFranklin, Nash42 min
Jun 4, 7:50 PM EDTTornado WarningRAHWilson55 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1993Every severe thunderstorm warning in 1993

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.