Alert archive / South Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 8, NWS Greenville-Spartanburg, SC

March 16, 1990Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 16, 1990, 8:57 PM EST for Laurens County, South Carolina. It was in force for 63 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 16, 1990, 8:57 PM EST (01:57 UTC)
Expired
Mar 16, 1990, 10:00 PM EST
In force
63 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Laurens County, SC

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Mar 16, 9:00 PM ESTThunderstorm Wind 0Laurens, SC

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 00:00Z, 2.0 hours before the alert went out and 133 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, Athens Municipal, GA at 00:00Z on 1990-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 60 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, Athens Municipal, GA at 00:00Z on 1990-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 428 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
60 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
953 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
428 m²/s²
0-3 km storm-relative helicity
525 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

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, Mar 16, 3:11 PM EST, 5 hours 46 minutes before
SCZ001>004-162115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREER SC
310 PM EST FRI MAR 16 1990

...FLASH FLOOD WATCH FOR THE SOUTH CAROLINA MOUNTAINS AND FOOTHILLS
   TONIGHT AND SATURDAY...

AT 315 THIS AFTERNOON WEATHER RADAR NOTED A ONE TO TWO HOUR BREAK
IN THE RAIN ACROSS NORTHEASTERN GEORGIA AND THROUGH OCONEE COUNTY
OF SOUTH CAROLINA. ELSEWHERE...LIGHT TO MODERATE RAIN WAS FALLING
IN THE UPSTATE AREAS OF THE PALMETTO STATE...WITH& A FEW HEAVY RAIN
SHOWERS IN GREENVILLE AND SPARTANBURG COUNTIES.

THE RAIN WAS MOVING NORTHEAST...WITH LITTLE CHANGE.
MUSGROVE
Special weather statement, Mar 16, 7:19 PM EST, 1 hour 38 minutes before
SCZ001>004-170200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
720 PM EST FRI MAR 16 1990

...SOME SEVERE WEATHER CONTINUES TO BE REPORTED FROM THE LINE OF
THUNDERSTORMS WHICH IS MOVING TOWARD THE UPSTATE...
AT 715 PM EST THE LINE OF STORMS STRETCHED FROM NORTH OF ATHENS
TO NEAR MACON AND CONTINUED MOVING EAST ABOUT 30 MPH.  THE NORTHERN
END OF THE LINE COULD AFFECT OCONEE COUNTY IN SOUTH CAROLINA AROUND
800 PM...AND THE MOST INTENSE PART OF THE LINE COULD AFFECT THE
ANDERSON/ABBEVILLE COUNTIES AREA BETWEEN 800 PM AND 900 PM.

IT IS NOT CLEAR WHETHER THIS LINE OF STORMS WILL MAINTAIN SEVERITY.
THE NATIONAL WEATHER SERVICE WILL CAREFULLY MONITOR THE PROGESS
3OF THIS WEATHER SYSTEM.

IN ADDITION...FLASH FLOOD WARNINGS COULD BECOME NECESSARY IN PARTS OF
THE UPSTATE DURING THE EVENING.
JONES
Special weather statement, Mar 16, 8:20 PM EST, 37 minutes before
NCZ 010-011-012-013-170315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ASHEVILLE NC
820 PM EST FRI  MAR 17 1990

AT 810 PM WEATHER SERVICE RADAR SHOWED VERY STRONG THUNDERSTORMS IN
SOUTHERN MACON COUNTY.  THIS WAS PART OF A LINE OF STORMS EXTENDING
SOUTHWARD THROUGH WESTERN SOUTH CAROLINA AND EASTERN GEORGIA.  THE LINE
WAS MOVING EAST AT 50 MPH.

THESE STORMS WILL MOVE ACROSS MACON..JACKSON..TRANSYLVANIA..HENDERSON..
POLK AND RUTHERFORD COUNTIES DURING THE NEXT SEVERAL HOURS.  THESE MAY
PRODUCE STRONG GUSTY WINDS AND HEAVY RAIN IN ADDITION TO DANGEROUS
LIGHTNING.

IF THREATENING WEATHER APPROACHES YOUR AREA MOVE INSIDE A STRONG
BUILDING UNTIL THE STORM HAS PASSED.
HM

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 7:10 PM ESTFlash Flood WarningGSPGraham, Jackson, Macon, Swain3 hr
Mar 16, 7:10 PM ESTFlash Flood WarningGSPCherokee, Clay3 hr
Mar 16, 9:11 PM ESTSevere Thunderstorm WarningGSPHenderson, Polk, Rutherford64 min
Mar 16, 9:44 PM ESTFlash Flood WarningGSPHenderson2 hr
Mar 16, 10:11 PM ESTFlash Flood WarningGSPCaldwell2 hr
Mar 16, 11:13 PM ESTFlash Flood WarningGSPWatauga2 hr
Mar 17, 3:19 AM ESTFlash Flood WarningGSPMacon3 hr
Mar 17, 3:49 AM ESTFlash Flood WarningGSPWatauga2 hr
Mar 16, 8:12 PM ESTTornado WarningGSPAnderson63 min
Mar 16, 8:16 PM ESTTornado WarningGSPAbbeville59 min
Mar 16, 8:57 PM ESTSevere Thunderstorm WarningGSPGreenwood33 min
Mar 17, 4:47 AM ESTFlash Flood WarningGSPGreenville118 min
Mar 17, 6:07 AM ESTFlash Flood WarningGSPGreenville, Pickens3 hr

Nearby

Severe Thunderstorm Warnings in South 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.