Alert archive / North Carolina / Tornado Warnings in 1993

Tornado Warning 6, NWS Raleigh, NC

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

NWS Raleigh, NC issued this tornado warning at Jun 4, 1993, 7:30 PM EDT for Chatham County, Durham County, North Carolina. It was in force for 45 min.

The area

The counties it named.

The facts

Issued: Jun 4, 1993, 7:30 PM EDT (23:30 UTC)
Expired: Jun 4, 1993, 8:15 PM EDT
In force: 45 min
Issued by: NWS Raleigh, NC
Area: Whole counties

Counties Chatham County, NC, Durham County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.5 hours before the alert went out and 79 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KRDU 042332
TORRDU
NCC037-063-050015-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
730 PM EDT FRI JUN 4 1993
 
THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  815 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL NORTH CAROLINA
 
   ...CHATHAM COUNTY...DURHAM COUNTY
 
A TORNADO WAS REPORTED ON THE GROUND IN NORTHEAST DURHAM AT 725 PM. THIS
STORM WAS vMOVING TO THE SOUTH AT 50 MPH.
 
A TORNADO IN SOUTHWESTERN ORANGE COUNTY WILL BE MOVING INTO CHATHAM
COUNTY NEAR THE BYNUM AREA.
 
&

What forecasters said that day

The local office's own words before this tornado 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, Jun 4, 7:13 PM EDT, 17 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
713 PM EDT FRI JUN 04 1993

TIME           EVENT
 712 EDT       TREES DOWN ON GUESS ROAD 4 MILES NORTH OF THE CITY OF
               DURHAM IN NORTHERN DURHAM COUNTY.  REPORTED BY AMATEUR
               RADIO.

RFG

Local storm report, Jun 4, 7:14 PM EDT, 16 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
713 PM EDT FRI JUN 04 1993

TIME           EVENT
 712 EDT       TREES DOWN ON GUESS ROAD 4 MILES NORTH OF THE CITY OF
               DURHAM IN NORTHLERN DURHAM COUNTY.  REPORTED BY AMATEUR
               RADIO.

RFG

Local storm report, Jun 4, 7:25 PM EDT, 5 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
724 PM EDT FRI JUN 04 1993

TIME           EVENT
724 EDT        TORNADO REPORTED ON ORANGE GROVE ROAD IN ORANGE COUNTY
               7 MILES WEST NXORTHWEST OF CHAPEL HILL REPORTED BY PUBLIC
               CITIZEN.

RFG

Local storm report, Jun 4, 7:27 PM EDT, 3 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
727 PM EDT FRI JUN 04 1993

TIME           EVENT
715 EDT        ESTIMATED 60 MPH WIND IN LOUISBURG. LARGE TREE LIMBS AND
               RADIO ANTENNAS BLOWN DOWN.  REPORTED BY AMATEUR RADIO
               SKYWARN SPOTTER.

714 EDT        DIME SIZED HAIL 2 MILES SOUTH OF HENDERSON IN VANCE COUNTY
               REPORTED BY AMATEUR RADIO SKYWARN SPOTTER.

RFG

Local storm report, Jun 4, 7:28 PM EDT, 2 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
727 PM EDT FRI JUN 04 1993

TIME           EVENT
715 EDT        ESTIMATED 60 MPH WIND IN LOUISBURG. LARGE TREE LIMBS AND
               RADIO ANTENN\AS BLOWN DOWN.  REPORTED BY AMATEUR RADIO
               SKYWARN SPOTTER.

714 EDT        DIME SIZED HAIL 2 MILES SOUTH OF HENDERSON IN VANCE COUNTY
               REPORTED BY AMATEUR RADIO SKYWARN SPOTTER.

RFG

Local storm report, Jun 4, 7:29 PM EDT, 1 minute before

STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
729 PM EDT FRI JUN 04 1993

TIME           EVENT
717 EDT        GOLF BALL SIZED HAIL IN NORTHAMPTON COUNTY IN THE TOWN OF
               RICH SQUARE. REPORTED BY SHERIFFS OFFICE.

RFG

         CITIZEN.

RFG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 5:50 PM EDT	Severe Thunderstorm Warning	RAH	Vance, Warren	55 min
Jun 4, 6:22 PM EDT	Tornado Warning	RAH	Warren	38 min
Jun 4, 6:29 PM EDT	Severe Thunderstorm Warning	RAH	Granville	46 min
Jun 4, 6:41 PM EDT	Severe Thunderstorm Warning	RAH	Halifax, Northampton	64 min
Jun 4, 6:51 PM EDT	Tornado Warning	RAH	Person	54 min
Jun 4, 7:02 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Orange	58 min
Jun 4, 7:02 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Granville, Vance	58 min
Jun 4, 7:11 PM EDT	Tornado Warning	RAH	Halifax	34 min
Jun 4, 7:23 PM EDT	Severe Thunderstorm Warning	RAH	Nash, Wake	67 min
Jun 4, 7:25 PM EDT	Tornado Warning	RAH	Orange	35 min
Jun 4, 7:37 PM EDT	Tornado Warning	RAH	Wake	53 min
Jun 4, 7:40 PM EDT	Tornado Warning	RAH	Edgecombe	65 min
Jun 4, 7:48 PM EDT	Tornado Warning	RAH	Franklin, Nash	42 min
Jun 4, 7:50 PM EDT	Tornado Warning	RAH	Wilson	55 min

Nearby

Tornado Warnings in North Carolina, 1993 Every tornado warning in 1993 Tornadoes 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.