Alert archive / South Carolina / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 206, NWS Greenville-Spartanburg, SC

May 20, 2006Chester County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 20, 2006, 11:30 PM EDT for Chester County, South Carolina. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 20, 2006, 11:30 PM EDT (03:30 UTC)
Expired: May 21, 2006, 12:30 AM EDT
In force: 60 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

County Chester County, SC

The radar

The Columbia radar (KCAE), 83 km from the middle of the area, began a volume at 03:30 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 3.5 hours before the alert went out and 192 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: 114 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 1810 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 284 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

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 May 20, 10:51 PM EDT, 39 minutes earlier.

Area forecast discussion, May 20, 10:51 PM EDT, 39 minutes before

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Hazardous weather outlook, May 20, 6:00 AM EDT, 17 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
600 AM EDT SAT MAY 20 2006

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-211000-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER-
IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-
CATAWBA-ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-
TRANSYLVANIA-HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-
CABARRUS-UNION NC-CALDWELL MOUNTAINS-GREATER CALDWELL-
BURKE MOUNTAINS-GREATER BURKE-MCDOWELL MOUNTAINS-EASTERN MCDOWELL-
RUTHERFORD MOUNTAINS-GREATER RUTHERFORD-POLK MOUNTAINS-
EASTERN POLK-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
GREENVILLE MOUNTAINS-GREATER OCONEE-GREATER PICKENS-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE-
LAURENS-UNION SC-CHESTER-GREENWOOD-
600 AM EDT SAT MAY 20 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND
UPSTATE SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT

SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING OVER
MUCH OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA...WITH THE
BEST CHANCE ALONG AND SOUTH OF A LINE FROM ASHEVILLE TO GREENVILLE
AND ROCK HILL.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THUNDERSTORMS WILL AGAIN BE POSSIBLE OVER THE WESTERN CAROLINAS
AND NORTHEAST GEORGIA WEDNESDAY AND THURSDAY. A FEW OF THESE COULD
PRODUCE DAMAGING WINDS AND LARGE HAIL.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

MCAVOY

In the hours before

Local storm report, May 20, 8:49 PM EDT, 2 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
849 PM EDT SAT MAY 20 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 PM     TSTM WND DMG     NEWTON                  35.67N 81.22W
05/20/2006                   CATAWBA            NC   TRAINED SPOTTER

            TREE DOWN ACROSS ST. JAMES CHURCH ROAD IN NEWTON.

&&

BSH

Local storm report, May 20, 9:11 PM EDT, 2 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
911 PM EDT SAT MAY 20 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0630 PM     TSTM WND DMG     DALLAS                  35.31N 81.18W
05/20/2006                   GASTON             NC   BROADCAST MEDIA

            NUMEROUS TREES DOWN ALONG NORTH STREET, BROOK GREEN
            STREET, AND THE INTERSECTION OF PARK ROAD AND NORTH
            STREET. WIDESPREAD POWER OUTAGES ACROSS THE TOWN.

&&

BSH

Special weather statement, May 20, 9:19 PM EDT, 2 hours 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
919 PM EDT SAT MAY 20 2006

NCZ059-063-210203-
NORTHERN JACKSON-SOUTHERN JACKSON-
919 PM EDT SAT MAY 20 2006

...STRONG THUNDERSTORM TO AFFECT JACKSON COUNTY THROUGH 10 PM EDT...

AT 915 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM MOVING SOUTHEAST AT 40 MPH ACROSS JACKSON COUNTY. THE
THUNDERSTORM WAS LOCATED 3 MILES SOUTHWEST OF SYLVA...AND THIS
THUNDERSTORM WILL LIKELY PRODUCE PEA SIZE HAIL AND GUSTY WINDS TO 40
MPH AT CULLOWHEE THROUGH 930 PM. THE THUNDERSTORM WILL THEN MOVE
SOUTHEAST TO NEAR WOLF MOUNTAIN BY 945 PM.

HG

Local storm report, May 20, 9:33 PM EDT, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
933 PM EDT SAT MAY 20 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0605 PM     HAIL             2 SW KINGS MOUNTAIN     35.22N 81.37W
05/20/2006  E0.75 INCH       CLEVELAND          NC   PUBLIC

0605 PM     TSTM WND DMG     2 SW KINGS MOUNTAIN     35.22N 81.37W
05/20/2006                   CLEVELAND          NC   PUBLIC

            TREES DOWN ALONG GRAYFIELD DRIVE AND MOBILE HOME DAMAGE
            ALONG RANGE ROAD.

&&

BSH

Local storm report, May 20, 9:36 PM EDT, 1 hour 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
936 PM EDT SAT MAY 20 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0934 PM     HAIL             LIBERTY                 34.79N 82.70W
05/20/2006  E0.75 INCH       PICKENS            SC   UNKNOWN

&&

BSH

Local storm report, May 20, 10:58 PM EDT, 32 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 9:37 PM EDT	Severe Thunderstorm Warning	GSP	Jackson	23 min
May 20, 9:10 PM EDT	Severe Thunderstorm Warning	GSP	Pickens	65 min
May 20, 9:33 PM EDT	Severe Thunderstorm Warning	GSP	Anderson	42 min
May 20, 10:33 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Pickens	36 min
May 20, 11:23 PM EDT	Severe Thunderstorm Warning	GSP	Union	15 min
May 21, 2:13 PM EDT	Severe Thunderstorm Warning	GSP	Anderson	35 min
May 21, 2:36 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville	54 min
May 21, 2:45 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg	60 min
May 21, 3:02 PM EDT	Severe Thunderstorm Warning	GSP	Greenwood	35 min
May 21, 3:35 PM EDT	Severe Thunderstorm Warning	GSP	York	55 min
May 21, 3:56 PM EDT	Severe Thunderstorm Warning	GSP	Chester	30 min
May 20, 8:34 PM EDT	Severe Thunderstorm Warning	GSP	Rabun	20 min
May 20, 9:42 PM EDT	Severe Thunderstorm Warning	GSP	Rabun	63 min
May 21, 1:25 PM EDT	Severe Thunderstorm Warning	GSP	Habersham	21 min
May 21, 1:30 PM EDT	Severe Thunderstorm Warning	GSP	Stephens	39 min
May 21, 1:44 PM EDT	Severe Thunderstorm Warning	GSP	Franklin	25 min
May 21, 1:56 PM EDT	Severe Thunderstorm Warning	GSP	Hart	45 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2006 Every severe thunderstorm warning in 2006

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.