Alert archive / South Carolina / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 417, NWS Greenville-Spartanburg, SC

July 14, 2006York County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 14, 2006, 8:14 PM EDT for York County, South Carolina. It was in force for 36 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: Jul 14, 2006, 8:14 PM EDT (00:14 UTC)
Expired: Jul 14, 2006, 8:50 PM EDT
In force: 36 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

County York County, SC

The radar

The Greer radar (KGSP), 95 km from the middle of the area, began a volume at 00:18 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, 0.2 hours before the alert went out and 169 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: 503 J/kg
Mixed-layer CIN: -106 J/kg
Mixed-layer LCL: 1404 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 14, 2:30 PM EDT, 5 hours 44 minutes earlier.

Area forecast discussion, Jul 14, 2:30 PM EDT, 5 hours 44 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
230 PM EDT FRI JUL 14 2006

.SHORT TERM /TONIGHT THROUGH SATURDAY/...
MORNING SHOWERS/CLOUDS GOT DESTABILIZATION PROCESS OFF TO A LATE
START TODAY WITH THE FIRST TSTMS NOTED ON THE 88D ABOUT 1 PM.
NONETHELESS...CVRG HAS BEEN GRADUALLY INCREASING AND EXPECT SCATTERED
...RATHER SLOW MOVING TSTMS TO EFFECT THE CWFA INTO THE EARLY TO
MID-EVENING HOURS. AS MENTIONED THIS MORNING...BASED ON MODIFIED 12
UTC AREA SNDGS...LOCALLY HEAVY RNFL SEEMS TO BE THE BIGGEST THREAT
WITH PWATS ABT 130 PERCENT OF NORMAL AND 33-35 K INDEX VALUES. HIGH
FREEZING LVLS AND VERY MOIST SNDGS SHOULD LIMIT ANY SVR WX TO
ISOLATED WET MICROBURSTS.

WITH LINGERING DEEP RH AND HIGH PWATS...COULD SEE ANOTHER OVERNIGHT
PERIOD WITH AT LEAST ISOLATED SHOWERS AND PERHAPS A TSTM...AS NAM
KEEPS THE ATMOSPHERE WEAKLY UNSTABLE. FRONTAL BAND MOISTURE AND
SUPPORTING ELONGATED MIX-LVL VORT TO EFFECT THE REGION ON
SATURDAY...RESULTING IN ANOTHER DAY OF SOLID CHANCE POPS.

&&

.LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/...
NAM AND GFS IN GOOD AGREEMENT SHOWING DIFLUENT FLOW ALOFT SAT NIGHT
BUT WITH SIGNIFICANT DRYING IN THE LOWER LEVELS. HAVE REDUCED POPS
OVERNIGHT SAT AND ON SUN AFTN. WEAK UPPER HIGH REMAINS OVER THE
REGION THROUGH THE PERIOD. SUBTROPICAL RIDGE AT THE SURFACE
MEANDERS IN THE W ATLANTIC BUT NOT RIDGING AS FAR INLAND. WITH LESS
MOISTURE EXPECTED OVER THE AREA...HAVE LOWERED POPS TO JUST SLIGHT
CHANCE FOR AFTN-EVE TSTMS. TEMPERATURES WILL BE ABOVE AVERAGE
THROUGH THE EXTENDED PERIOD WITH SOME AREAS OF THE PIEDMONT
REACHING INTO THE MID 90S.

&&

.AVIATION...
WITH A DISORGANIZED TSTM THREAT THRU EARLY EVENING BUT VERY MOIST
SNDGS...SHOULD BE ENOUGH CVRG FOR A PERIOD OF VCTS AT ALL TERMINALS.
FOR TONIGHT...PLAN ON A PERSISTENCE FCST WITH RESPECT TO VSBYS WITH
MAINLY MVFR AT KAVL AND 6SM AT KHKY.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.
&&

SHORT TERM...CSH
LONG TERM...RB
AVIATION...CSH

Hazardous weather outlook, Jul 14, 5:55 AM EDT, 14 hours 19 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
555 AM EDT FRI JUL 14 2006

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-151000-
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-
555 AM EDT FRI JUL 14 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

SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON. A FEW OF THE
STORMS MAY PRODUCE DAMAGING DOWNBURSTS OR LARGE HAIL. ANY OF THE
STORMS COULD PRODUCE HEAVY DOWNPOURS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SCATTERED THUNDERSTORMS WILL DEVELOP SATURDAY AFTERNOON. A FEW OF
THE STORMS MAY PRODUCE DAMAGING DOWNBURSTS OR LARGE HAIL. ANY OF
THE STORMS COULD PRODUCE HEAVY DOWNPOURS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

In the hours before

Special weather statement, Jul 14, 5:40 PM EDT, 2 hours 34 minutes before

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Special weather statement, Jul 14, 5:52 PM EDT, 2 hours 22 minutes before

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Special weather statement, Jul 14, 6:47 PM EDT, 1 hour 27 minutes before

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Special weather statement, Jul 14, 6:49 PM EDT, 1 hour 25 minutes before

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Local storm report, Jul 14, 7:00 PM EDT, 1 hour 14 minutes before

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Local storm report, Jul 14, 7:10 PM EDT, 1 hour 4 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
Jul 15, 3:15 PM EDT	Severe Thunderstorm Warning	GSP	Henderson	90 min
Jul 15, 3:22 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe	26 min
Jul 15, 4:04 PM EDT	Severe Thunderstorm Warning	GSP	Polk	71 min
Jul 15, 4:49 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland	71 min
Jul 15, 4:52 PM EDT	Severe Thunderstorm Warning	GSP	Rutherford	53 min
Jul 15, 5:24 PM EDT	Severe Thunderstorm Warning	GSP	Gaston	96 min
Jul 15, 5:45 PM EDT	Severe Thunderstorm Warning	GSP	Alexander	75 min
Jul 15, 5:57 PM EDT	Severe Thunderstorm Warning	GSP	Iredell	93 min
Jul 15, 6:05 PM EDT	Severe Thunderstorm Warning	GSP	Catawba	85 min
Jul 15, 6:28 PM EDT	Severe Thunderstorm Warning	GSP	Union	92 min
Jul 15, 7:02 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Caldwell	28 min
Jul 15, 7:24 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus	74 min
Jul 15, 4:13 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	77 min
Jul 15, 4:55 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee	89 min
Jul 15, 5:18 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	64 min
Jul 15, 5:37 PM EDT	Severe Thunderstorm Warning	GSP	Union	68 min
Jul 15, 6:09 PM EDT	Severe Thunderstorm Warning	GSP	Chester	76 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.