Alert archive / South Carolina / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 47, NWS Greenville-Spartanburg, SC

April 20, 1996Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 20, 1996, 2:21 PM EDT for Greenville County, South Carolina. It was in force for 54 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: Apr 20, 1996, 2:21 PM EDT (18:21 UTC)
Expired: Apr 20, 1996, 3:15 PM EDT
In force: 54 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Greenville County, SC

The radar

The Greer radar (KGSP), 14 km from the middle of the area, began a volume at 18:24 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Apr 20, 2:55 PM EDT	Thunderstorm Wind	Simpsonville, 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.4 hours before the alert went out and 259 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: 109 J/kg
Mixed-layer CIN: -165 J/kg
Mixed-layer LCL: 680 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 227 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 20, 1:51 PM EDT, 30 minutes earlier.

Area forecast discussion, Apr 20, 1:51 PM EDT, 30 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE/SPARTANBURG, SC
148 PM EDT SAT APR 20 1996

.RAH..THINK WE NEED BEEF UP POPS FOR CURRENT THREAT AND PSBLY
      ANOTHER LATER TNT AND EARLY SUN.

ONLY HAVE HAD TIME TO LOOK AT NGM AND ETA ON AFOS...NO GRIDDED
DATA AVAILABLE.  LOOKS LIKE WE HAVE THIS WAVE OF SVR TO DEAL WITH
WHICH WILL AFFECT MOST OF WESTERN NC LATE THIS AFTN AND ELY EVENING
AND STORMS IN NRN AL AND NW GA SPREADING INTO REMAINDER OF AREA
MAINLY EARLY TONIGHT.

MODELS HINT AT ANOTHER WEAK SW MOVG IN LATE TONIGHT AND EARLY SUNDAY.
THIS MAY PRODUCE ANOTHER WAVE OF STRONG SSTORMS AS STRONG..WARM MOIST
FLOW WILL CONTINUE TO PUMP MOISTURE IN.  MOS TEMPS AND POPS LOOK OK.

GSP 60/78/59/81 6/5/3/5
AVL 58/76/55/78 6/5/4/6
CLT 64/79/63/81 5/4/3/5

RBN

In the hours before

Local storm report, Apr 20, 12:27 PM EDT, 1 hour 54 minutes before

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Local storm report, Apr 20, 12:31 PM EDT, 1 hour 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
1231 PM EDT SAT APR 20 1996

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....
1227 PM    KELLY VALLEY              NC   1.00 HAIL
04/20/96   MACON                          COUNTY 911

1227 PM    FRANKLIN                  NC   WIND DAMAGE
04/20/96   MACON                          COUNTY 911

Local storm report, Apr 20, 1:09 PM EDT, 1 hour 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
109 PM EDT SAT APR 20 1996

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....
104 PM     CASHIERS                  NC   WIND DAMAGE
04/20/96   JACKSON                        TREES DOWN

Local storm report, Apr 20, 1:27 PM EDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
127 PM EDT SAT APR 20 1996

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.d....
115 PM     COUNTY-WIDE               NC   .75 HAIL
04/20/96   TRANSYLVANIA                   REPORTED BY COUNTY
                                          DISPATCH

Local storm report, Apr 20, 1:31 PM EDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
130 PM EDT SAT APR 20 1996

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....
127 PM     ASHEVILLE                 NC   .75 HAIL
04/20/96   BUNCOMBE                       PEA TO DIME-SIZED HAIL IN
                                          DOWNTOWN ASHEVILLE
                                          REPORTED BY WARNNET
p

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 20, 11:28 AM EDT	Severe Thunderstorm Warning	GSP	Graham, Swain	62 min
Apr 20, 11:54 AM EDT	Severe Thunderstorm Warning	GSP	Macon	36 min
Apr 20, 12:20 PM EDT	Tornado Warning	GSP	Haywood	40 min
Apr 20, 12:34 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Macon	41 min
Apr 20, 12:55 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Transylvania	50 min
Apr 20, 1:19 PM EDT	Severe Thunderstorm Warning	GSP	Henderson	41 min
Apr 20, 3:24 PM EDT	Tornado Warning	GSP	Gaston, Lincoln	36 min
Apr 20, 2:26 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	64 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 1996 Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.