Alert archive / South Carolina / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 176, NWS Greenville-Spartanburg, SC

June 19, 2003Chester County, Union County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 19, 2003, 3:16 PM EDT for Chester County, Union County, South Carolina. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 19, 2003, 3:16 PM EDT (19:16 UTC)
Expired
Jun 19, 2003, 4:15 PM EDT
In force
59 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Counties, with a storm outline in the text

Counties Chester County, SC, Union County, SC

The radar

The Greer radar (KGSP), 82 km from the middle of the area, began a volume at 19:17 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.3 hours before the alert went out and 202 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 12:00Z on 2003-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 206 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, Greensboro/Hi Pt, NC at 12:00Z on 2003-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.19395878Sfc1 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
206 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
563 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KGSP 191916
SVRGSP
SCC023-087-192015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
316 PM EDT THU JUN 19 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN UNION COUNTY IN UPSTATE SOUTH CAROLINA
  CHESTER COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 415 PM EDT

* AT 316 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM 7 MILES EAST OF UNION...OR ABOUT 5 MILES EAST OF
  MONARCH MILLS...MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LEEDS AT 325 PM EDT.
  LOWRYS AT 335 PM EDT.
  CHESTER AT 340 PM EDT.
  CORNWELL AT 350 PM EDT.
  BLACKSTOCK AT 355 PM EDT.

PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR
LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY
RAIN CAN OCCUR WITH ANY THUNDERSTORM.

LAT...LON 3484 8161 3466 8169 3441 8096 3476 8086

$$

RWH

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 Jun 19, 2:25 PM EDT, 51 minutes earlier.

Area forecast discussion, Jun 19, 2:25 PM EDT, 51 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
225 EDT THU JUN 19 2003

UPDATED FOR NEW FORECAST NUMBERS AT THE BOTTOM

STILL WORKING ON FORECAST ISSUES FOR THIS EVENING.  INHERITED FLOOD
WATCH THAT EXPIRES AT 6:00 PM.  FOR MOST OF THE AREA I PLAN TO LET
IT GO UNTIL 6 PM.  THE CONCERN IS NEW CONVECTION STARTING TO DEVELOP
ACROSS EASTERN PART OF THE CWA.  DEVELOPMENT IS ENHANCED BY SHEAR
LINE THROUGH UPSTATE OF SC INTO CENTRAL NORTH CAROLINA.

SPC DOES NOT EXPECT MUCH ORGANIZATION WITH THESE STORMS...BUT
CONTINUES TO MONITOR.  CAPES INDICATE POSSIBILITY OF ISOLATED SEVERE
OVER EASTERN CWA.  PREFERRED SCENARIO IS THAT THUNDERSTORMS MOVE
THROUGH AND INCREASE STABILITY DURING THE EARLY EVENING AT LEAST
UNTIL HEATING CUTS OFF.  IF THAT IS THE CASE...FLOOD WATCH CAN BE
DROPPED OVER THE WHOLE AREA.

IF CELLS CONTINUE TO DEVELOP DURING THE EVENING...WE ARE LOOKING
AT THE POSSIBILITY OF FLOODING IN SATURATED AND URBAN AREAS. LOW
LEVEL CONVERGENCE AROUND I40 AND I77 LOOKS LIKE THE BEST FORCING IN
THAT AREA AFTER SUNSET.

AFTER FRONTAL PASSAGE THINGS DRY OUT FOR WEEKEND WITH WARMING TREND
INTO NEXT WEEK.  RETURN MOISTURE DOES NOT REALLY GET BACK INTO THE
AREA UNTIL LATE IN THE WEEK.  I HAVE 20 PRECENT FOR NEXT THURSDAY
BUT IT WILL NOT SHOW UP IN ZONE PACKAGE.

FCSTID =    0
GSP   66  86  62  85 /  50  20  10   0
AND   67  88  62  87 /  40  20  10   0
CLT   68  86  61  84 /  50  20  20   0
HKY   66  84  59  83 /  50  10  10   0
AVL   63  78  55  80 /  40  10  10   0

.GSP...
GA...FLOOD WATCH THROUGH 6:00 PM FOR ZONES
GAZ010...GAZ017>018...GAZ026...GAZ028>029.

NC...FLOOD WATCH THROUGH 6:00 PM FOR ZONES
NCZ033>037...NCZ048>059...NCZ062>072...NCZ082.

SC...FLOOD WATCH THROUGH 6:00 PM FOR ZONES
SCZ001>014...SCZ019.

DICARLO
Hazardous weather outlook, Jun 19, 5:38 AM EDT, 9 hours 38 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-191130-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
538 AM EDT THU JUN 19 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA...
UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA.

.DAY ONE...TODAY

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL ONCE AGAIN
DEVELOP OVER THE WESTERN CAROLINAS AND NORTHEAST GEORGIA TODAY. SOME
OF THESE STORMS WILL PRODUCE VERY HEAVY RAIN...AND A FLOOD WATCH
REMAINS IN EFFECT THROUGH TODAY FOR THE ENTIRE REGION. SEE OUR
PRODUCT CAEFFAGSP FOR MORE INFORMATION.

A FEW OF THE THUNDERSTORMS THIS AFTERNOON MAY ALSO BECOME
SEVERE...WITH DAMAGING WINDS AND LARGE HAIL. SEE OUR PRODUCT
CAESPSGSP FOR MORE INFORMATION.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE LIKELY THIS AFTERNOON AND EVENING.

MCAVOY

In the hours before

Special weather statement, Jun 19, 11:08 AM EDT, 4 hours 8 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-192200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1108 AM EDT THU JUN 19 2003

...SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING...

A VERY MOIST AIRMASS REMAIN WILL REMAIN IN PLACE THIS AFTERNOON.
THIS WILL RESULT IN NUMEROUS SHOWERS AND THUNDERSTORMS ACROSS THE
WESTERN CAROLINAS AND NORTHEAST GEORGIA VERY HEAVY RAIN...AND A
FLOOD WATCH REAMINS IN EFFECT FOR THE AFTERNOON.

IN ADDITION...DRIER AIR AND STRONGER WINDS IN THE MIDDLE AND UPPER
ATMOSPHERE WILL RESULT IN STRONGER THUNDERSTORMS THIS AFTERNOON THAN
THE PREVIOUS FEW DAYS. SOME OF THESE STORMS MAY BECOME
SEVERE...PRODUCING DAMAGING WINDS AND LARGE HAIL. A SEVERE
THUNDERSTORM IS ONE THAT PRODUCES DAMAGING WINDS OR LARGE HAIL.

SHOWERS WERE MOVING THROUGH THE MOUNTAINS AT MID DAY...AND STRONG
THUNDERSTORM DEVELOPMENT IS EXPECTED ACROSS THE FOOTHILLS AND
PIEDMONT...WHICH SHOULD HAVE THE GREATEST THREAT OF SEVERE WEATHER.

SPOTTER GROUPS SHOULD BE PREPARED TO ACTIVATE QUICKLY LATE THIS
AFTERNOON AND THIS EVENING. DISPATCHERS SHOULD ENSURE COUNTY
EMERGENCY PREPAREDNESS OFFICIALS ARE AWARE OF THIS INFORMATION.

STAY TUNED TO NOAA WEATHER RADIO OR THE MEDIA FOR THE LATEST WEATHER
INFORMATION OR SEVERE WEATHER WATCHES OR WARNINGS.

JONES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 11:24 PM EDTFlash Flood WarningGSPAnderson, Pickens3 hr
Jun 19, 2:17 AM EDTFlash Flood WarningGSPAnderson, Pickens3 hr
Jun 19, 3:27 PM EDTTornado WarningGSPChester48 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2003Every severe thunderstorm warning in 2003

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; radar from the NEXRAD Level II archive.