Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 21, NWS Greenville-Spartanburg, SC

April 1, 1990Cleveland County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 1, 1990, 8:02 PM EDT for Cleveland County, North Carolina. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
Apr 1, 1990, 8:02 PM EDT (00:02 UTC)
Expired
Apr 1, 1990, 8:30 PM EDT
In force
28 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Cleveland 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, 0.0 hours before the alert went out and 171 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 1990-04-02Temperature 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°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 1990-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 245 square meters per square second.1939587897Sfc1 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
51 kt
0-1 km storm-relative helicity
245 m²/s²
0-3 km storm-relative helicity
318 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCLT 020003
SVRCLT
NCC045-020030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLOTTE NC
802 PM EDT SUN APR 1 1990
 
THE NATIONAL WEATHER SERVICE IN CHARLOTTE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN WEST NORTH CAROLINA
          ...CLEVELAND
 
AT 801 PM THE CLEVELAND COUNTY COMMUNICATIONS CENTER RELAYED A REPORT
THAT HAIL TO 7/8 INCH IN DIAMETER WAS OBSERVED AT 800 PM IN POLKVILLE
IN THE NORTHERN PORTION OF CLEVELAND COUNTY. THIS STORM WAS MOVING
TOWARD THE EAST AT 30 MPH.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...L0ARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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, Apr 1, 3:59 PM EDT, 4 hours 3 minutes before
NCZ 007-009-010-011-012-013-012200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ASHEVILLE NC
400 PM EDT SUN APR 1 1990

...SHOWERS AND THUNDERSTORMS OVER THE MOUNTAINS AND FOOTHILLS...

SHORTLY BEFORE 4 PM A THUNDERSTORM WITH VERY HEAVY RAIN WAS LOCATED
NORTHEAST OF ASHEVILLE ALONG THE MCDOWELL COUNTY-RUTHERFORD COUNTY
LINE. THIS STORM DUMPED FROM PEA TO MARBLE SIZE HAIL AS IT MOVED
OVER FLAT TOP MOUNTAIN AROUND 330 THIS AFTERNOON.

ELSEWHERE...SHOWERS AND THUNDERSTORMS WERE WIDELY SCATTERED ACROSS
PARTS OF THE MOUNTAINS AND FOOTHILLS. MOVEMENT WAS EAST AT 35 MILES
AN HOUR.

SHOWERS AND POSSIBLY A FEW THUNDERSTORMS WILL CONTINUE TO DEVELOP IN
WESTERN NORTH CAROLINA TONIGHT. I URGE YOU TO REMAIN ALERT AND BE
PREPARED TO SEEK SAFE SHELTER INDOORS IF A THUNDERSTORM APPROACHES.
CC
Special weather statement, Apr 1, 5:08 PM EDT, 2 hours 54 minutes before
SCZ001>004-012200

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREER SC
507 PM EDT SUN APR 01 1990

...ISOLATED THUNDERSTORMS OVER NORTHWESTERN SOUTH CAROLINA...
AT 5PM RADAR INDICATED A THUNDERSTORM CENTERED NEAR WILLIAMSTON
IN EXTREME EASTERN ANDERSON COUNTY.
THIS THUNDERSTORM IS MOVING TOWARD THE EAST AT ABOUT 20 MPH AND
HAS PRODUCED PEA TO MARBLE SIZE HAIL IN PARTS OF ANDERSON COUNTY.
REM
Special weather statement, Apr 1, 5:59 PM EDT, 2 hours 3 minutes before
SCZ001>004-012300

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREER SC
600 PM EDT SUN APR 01 1990

...ISOLATED THUNDERSTORMS CONTINUE OVER NORTHWESTERN SOUTH CAROLINA...
AT 555PM RADAR INDICATED  THUNDERSTORMS OVER NORTHWEST SPARTANBURG
COUNTY NORTHERN CHEROKEE COUNTY AND SOUTHEAST UNION COUNTY.
THESE STORMS ARE MOVING TOWARD THE EAST AT ABOUT 20 MPH AND WILL
PRODUCE BRIEF HEAVY SHOWERS GUSTY WIND AND POSSIBLY SOME SMALL HAIL.
REM
Local storm report, Apr 1, 6:26 PM EDT, 1 hour 36 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE CHARLOTTE NC
625 EDT SUN APR 1 1990

ATTN SELS... WIND GUSTS WERE MEASURED TO 78 MPH AT CHARLOTTES
FAA CONTROL TOWER... MECKLENBURG COUNTY... AT 1806 EDT.

PEA SIZE HAIL WAS NEARLY COVERING THE GROUND AT 624 EDT IN
EASTERN CHARLOTTE... MECKLENBURG COUNTY.  NUMEROUS REPORTS OF
HAIL HAVE BEEN RECEIVED FROM THROUGHOUT CHARLOTTE... MOSTLY PEA
SIZE AND ALL FROM 605 THROUGH THE PRESENT TIME (624 EDT).

RK

 INT

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 1, 9:05 PM EDTSevere Thunderstorm WarningGSPGaston25 min
Apr 1, 9:21 PM EDTSevere Thunderstorm WarningGSPMecklenburg69 min
Apr 1, 10:04 PM EDTSevere Thunderstorm WarningGSPUnion56 min
Apr 1, 10:49 PM EDTSevere Thunderstorm WarningGSPAnson56 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.