Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 91, NWS Raleigh, NC

September 7, 1990Edgecombe County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Sep 7, 1990, 8:24 PM EDT for Edgecombe County, North Carolina. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Sep 7, 1990, 8:24 PM EDT (00:24 UTC)
Expired
Sep 7, 1990, 9:00 PM EDT
In force
36 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Edgecombe 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

Cape Hatteras, NC (KHAT), launched 00:00Z, 0.4 hours before the alert went out and 203 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, Cape Hatteras, NC at 00:00Z on 1990-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2696 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, Cape Hatteras, NC at 00:00Z on 1990-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 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
2696 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
1087 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRDU 080026
SVRRDU
NCC065-080100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
824 PM EDT FRI SEP 7 1990
 
THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  900 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST NORTH CAROLINA
 
   ...EASTERN EDGECOMBE COUNTY
 
WEATHER SERVICE RADAR INDICATED A THUNDERSTORM WITH POSSIBLE HAIL AND
GUSTY WINDS MOVING SOUTHEAST NEAR THE EDGECOMBE AND HALIFAX LINE. THIS
THUNDERSTORM BLEW SOME TREES DOWN IN HALIFAX COUNTY.
 
 
PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL AND
DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR
WITH ANY THUNDERSTORM.
 
LBC

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, Sep 7, 6:20 PM EDT, 2 hours 4 minutes before
NCZ-006-007-009-072330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
619 PM EDT FRI SEP 7 1990

...THUNDERSTORMS WITH VERY HEAVY RAIN OVER SOUTH CENTRAL VIRGINIA
   MOVING TOWARD NORTHERN NORTH CAROLINA LATE THIS AFTERNOON...

AT 615 PM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS
...SOME WITH VERY HEAVY RAIN...OVER THE SOUTHERN VIRGINIA COUNTIES OF
GRAYSON...CARROL AND PATRICK. THESE STORMS WILL MOVE INTO THE NORTHERN
NORTH CAROLINA COUNTIES OF ALLEGHANY...SURRY AND STOKES BY 630 PM.
THE STORMS WERE MOVING SOUTHEAST AT 30 MPH.

THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY DOWNPOURS...FREQUENT
DEADLY LIGHTNING...STRONG GUSTY WINDS AND POSSIBLY SOME HAIL.

PERSONS IN THE NORTHERN BORDER COUNTIES OF NORTH CAROLINA MENTIONED
ABOVE SHOULD BE ON THE LOOKOUT FOR THESE STORMS AS THEY APPROACH.

SINCE A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHERN VIRGINIA...
STAY TUNED TO YOUR FAVORITE TV OBR RADIO STATION FOR A POSSIBLE WARNING
OR LATER STATEMENTS.

GR
Local storm report, Sep 7, 8:21 PM EDT, 3 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
819 PM EDT FRI SEP 07 1990

TIME           EVENT
 810 PM EDT    TREES DOWN ACROSS HWY 561 IN CENTRAL HALIFAX CO.
               REPORTED BY HALIFAX CO. OFFICIALS VIA STATE WARNING PT.

RFG

Nearby

Severe Thunderstorm Warnings in North Carolina, 1990Every severe thunderstorm warning in 1990

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.