Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 33, NWS Raleigh, NC

June 9, 1990Orange County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jun 9, 1990, 9:18 PM EDT for Orange County, North Carolina. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jun 9, 1990, 9:18 PM EDT (01:18 UTC)
Expired
Jun 9, 1990, 10:15 PM EDT
In force
57 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Orange 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 00:00Z, 1.3 hours before the alert went out and 70 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 00:00Z on 1990-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 1990-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRDU 100120
SVRRDU
NCC135-100215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
918 PM EDT SAT JUN 9 1990
 
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL NORTH CAROLINA
 
   ...ORANGE COUNTY
 
AT 915 PM...A SEVERE THUNDERSTORM WAS SHOWN BY RADAR TO BE MOVING INTO
NORTHWEST ORANGE COUNTY FROM CASWELL AND ALAMANCE COUNTIES. THE STORM
WAS MOVING TO THE EAST AT ABOUT 20 MPH.
 
 
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 THUNDE8RSTORM.

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 9, 4:08 PM EDT, 5 hours 10 minutes before
NCZ007-092100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
405 PM EDT SAT JUN 9 1990

...A THUNDERSTORM HAD DEVELOPED OVER THE NORTHERN FOOTHILLS OF
   NORTH CAROLINA...

AT 400 PM NATIONAL WEATHER SERVICE RADAR SHOWED A THUNDERSTORM WITH
VERY HEAVY RAIN OVER THE SOUTHWEST PORTION OF WILKES COUNTY OF THE
NORTHERN FOOTHILLS OF NORTH CAROLINA. THE STORM WAS MOVING EAST AT 20 MPH.

THIS STORM IS CAPABLE OF PRODUCING FREQUENT DEADLY LIGHTNING...STRONG
GUSTY WINDS AND SOME HAIL.

PERSONS IN WILKES COUNTY SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS DURING THE NEXT HOUR AS THIS STORM MOVES ACROSS
THE COUNTY.  TAKE SHELTER UNTIL THE STORM PASSES.

GR
Special weather statement, Jun 9, 5:12 PM EDT, 4 hours 6 minutes before
NCZ007-092200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
510 PM EDT SAT JUN 9 1990

...THUNDERSTORMS OVER THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT
   OF NORTH CAROLINA...

AT 505 PM NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS
WITH VERY HEAVY RAIN OVER NORTHERN IREDELL AND WESTERN SURRY COUNTIES
OF NORTH CAROLINA. THE STORMS WERE MOVING EAST AT 15 MPH.

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

PERSONS IN SURRY AND NORTHERN IREDELL COUNTIES SHOULD BE ON THE LOOKOUT
FOR THREATENING WEATHER CONDITIONS DURING THE NEXT HOUR AS THESE STORMS
MOVE ACROSS THESE COUNTIES.  TAKE SHELTER UNTIL THE STORM PASSES.

GR
Special weather statement, Jun 9, 6:06 PM EDT, 3 hours 12 minutes before
NCZ006-007-092300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
605 PM EDT SAT JUN 9 1990

...THUNDERSTORMS OVER THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT
   OF NORTH CAROLINA...

AT 600 PM NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS
WITH VERY HEAVY RAIN NEAR PILOT MOUNTAIN OF EASTERN SURRY COUNTY...
ALONG THE WILKES/ALEXANDER COUNTY LINE SOUTH OF BOOMER AND NORTHERN
IREDELL COUNTY OF NORTH CAROLINA. THE STORM WITH THE HEAVIEST RAINFALL
WAS ALONG THE WILKES/ALEXANDER COUNTY LINE. MOVEMENT WAS EAST AT 15 MPH.

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

PERSONS IN THE ABOVE MENTIONED COU$NTIES SHOULD BE ON THE LOOKOUT
FOR THREATENING WEATHER CONDITIONS DURING THE NEXT HOUR AS THESE STORMS
MOVE ACROSS THESE COUNTIES.  TAKE SHELTER UNTIL THE STORM PASS.

GR
Special weather statement, Jun 9, 7:58 PM EDT, 1 hour 20 minutes before
NCZ006-007-100100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
755 PM EDT SAT JUN 9 1990

...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR THE NORTHWEST PIEDMONT
   ...THE NORTHERN FOOTHILLS AND THE NORTHERN MOUNTAINS OF NORTH
   CAROLINA UNTIL 1 AM...

AT 750 PM NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS
WITH VERY HEAVY RAIN OVER NORTHERN ROCKINGHAM...EASTERN STOKES...
SOUTHEAST WILKES AND ALEXANDER COUNTIES OF NORTH CAROLINA.
THE STORMS WITH THE HEAVIEST RAINFALL WERE JUST EAST OF EDEN IN
ROCKINGHAM COUNTY AND JUST SOUTH OF TAYLORSVILLE OF ALEXANDER COUNTY.
THE STORMS WERE MOVING EAST AT 15 TO 20 MPH.

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

PERSONS IN ROCKINGHAM...STOKES...WILKES...YADKIN...ALEXANDER AND
NORTHERN IREDELL SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER
CONDITIONS FOR THE NEXT HOUR. TAKE SHELTER UNTIL THE STORMS PASS.

GR
Special weather statement, Jun 9, 8:46 PM EDT, 32 minutes before
NCZ003>005-014-015-DDHHMM-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
845 PM EDT SAT JUN 9 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF EASTERN AND CENTRAL
NORTH CAROLINA TIL 1AM THIS MORNING. AT 830PM THIS EVENING WEATHER RADAR
SHOWED INTENSE THUNDERSTORMS EXTENDING FROM NORTHWEST PERSON COUNTY
WEST AND SOUTHWEST TO ROCKINGHAM COUNTY. THE MOST INTENSE THUNDERSTORM
WAS LOCATED ALONG THE CASWELL-PERSON COUNTY LINE NEAR THE VIRGINIA BORDER.

A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR CASWELL AND ROCKINGHAM
COUNTIES UNTIL 915PM THIS EVENING.

LISTEN TO LOCAL RADIO..TV..OR WEATHER RADIO FOR LATER STATEMENTS OR
POSSIBLE WARNINGS.

JNV
Local storm report, Jun 9, 9:16 PM EDT, 2 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
913 PM EDT SAT JUN 09 1990

TIME           EVENT

844PM EDT      SHERIFF'S DEPUTY IN MILTON-SAMORA AREA OF NORTHEAST
               CASWELL COUNT1Y NORTH CAROLIN NEAR PERSONS COUNTY LINE
               REPORTED SEVERE THUNDERSTORM WITH QUARTER SIZE HAIL
               HIGH WINDS AND LOTS OF LIGHTNING.

JFB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 8:49 PM EDTSevere Thunderstorm WarningRAHPerson56 min

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.