Alert archive / South Carolina / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 183, NWS Greenville-Spartanburg, SC

July 28, 2005Anderson County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 28, 2005, 9:23 PM EDT for Anderson 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 outline as issued, with what was reported inside it.

The facts

Issued: Jul 28, 2005, 9:23 PM EDT (01:23 UTC)
Expired: Jul 28, 2005, 10:17 PM EDT
In force: 54 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

County Anderson County, SC

The radar

The Greer radar (KGSP), 33 km from the middle of the area, began a volume at 01:24 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
Jul 28, 9:30 PM EDT	TSTM WND DMG	Williamston, SC	TREES AND LIMBS BLOWN DOWN...SOME ACROSS POWER LINES. PUBLIC REPORTS RELAYED THROUGH 911. CONTINUED LIMBS AND URBAN FLOODING AROUND ANDERSON.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 7 minutes after it went out.

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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.4 hours before the alert went out and 236 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: 825 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1097 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KGSP 290124
SVRGSP
SCC007-290215-
/O.NEW.KGSP.SV.W.0183.050729T0123Z-050729T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
923 PM EDT THU JUL 28 2005

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ANDERSON COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 1015 PM EDT

* AT 919 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR WILLIAMSTON...OR
  ABOUT 7 MILES NORTHEAST OF ANDERSON...AND MOVING NORTHEAST AT 20   
  MPH.  TREES HAVE BEEN BLOWN DOWN AROUND THE OUTSKIRTS OF           
  ANDERSON...AROUND 910 PM EDT.  SOME URBAN FLOODING WAS ALSO DEVELOPING
  AROUND THE CITY AREA.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WILLIAMSTON AROUND 930 PM EDT...
  PIEDMONT AROUND 940 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 3479 8251 3480 8248 3477 8246 3474 8246
      3473 8247 3465 8247 3455 8242 3450 8257
      3465 8268

$$

JONES

2 follow-up statements

000 
WWUS52 KGSP 290148
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
949 PM EDT THU JUL 28 2005

SCC007-290215-
/O.CON.KGSP.SV.W.0183.000000T0000Z-050729T0215Z/
ANDERSON SC-
945 PM EDT THU JUL 28 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 1015 PM EDT FOR
NORTHEASTERN ANDERSON COUNTY...

AT 945 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE STRONG TO SEVERE THUNDERSTORMS ACROSS ANDERSON COUNTY.  TH 
ORIGINAL SEVERE STORM WAS LOCATED NEAR WILLIAMSTON...OR ABOUT 12 
MILES NORTHEAST OF ANDERSON. THIS STORM WAS MOVING NORTHEAST AT 15 
MPH AND WEAKENING.  IT WAS STILL CAUSING WIND GUSTS ESTIMATED TO 40 
MPH AS IT MOVED INTO GREENVILLE COUNTY.

THE ANDERSON PUBLIC SAFETY HAS ADVISED THAT MANY REPORTS OF WIND 
DAMAGE IN THE FORM OF DOWNED TREES AND LIMBS HAVE BEEN 
RECEIVED...MOST RECENTLY AROUND WILLIAMSTON.  THERE WERE STILL 
REPORTS OF LIMBS HAVING BEEN BLOWN ONTO POWER LINES AROUND THE CITY 
OF ANDERSON.

THE LARGE REMAINING PROBLEM COULD BE HEAVY RAINFALL.  IT IS POSSIBLE 
THAT FLASH FLOODING MAY DEVELOP IN AND AROUND ANDERSON.

LAT...LON 3479 8251 3480 8248 3477 8246 3474 8246
      3473 8247 3465 8247 3455 8242 3450 8257
      3465 8268

$$
JONES

000 
WWUS52 KGSP 290217
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1017 PM EDT THU JUL 28 2005

SCC007-290227-
/O.EXP.KGSP.SV.W.0183.000000T0000Z-050729T0215Z/
ANDERSON SC-
1017 PM EDT THU JUL 28 2005

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ANDERSON COUNTY 
EXPIRED AT 1015 PM EDT...

STRONG STORMS HAVE WEAKENED SOMEWHAT OVER THE COUNTY...BUT HEAVY 
RAIN CONTINUED TO FALL.

LAT...LON 3479 8251 3480 8248 3477 8246 3474 8246
      3473 8247 3465 8247 3455 8242 3450 8257
      3465 8268

$$
JONES

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 28, 2:44 PM EDT, 6 hours 39 minutes earlier.

Area forecast discussion, Jul 28, 2:44 PM EDT, 6 hours 39 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
244 PM EDT THU JUL 28 2005

.SHORT TERM (TONIGHT THROUGH FRIDAY)...
88D TRENDS THROUGH THE REST OF THE AFTERNOON SHOULD DEPICT
BLOSSOMING CVRG OF DEEP CONVECTION THANKS TO THE COMBINATION OF
DEEPER RH PRESSING IN FROM THE NORTHWEST...A MODERATELY TO VERY
UNSTABLE AIRMASS AND LLVL CONVERGENCE AXIS BISECTING THE CWFA.
WILL CONTINUE TO FCST NUMEROUS TSTM CVRG THROUGH MIDNIGHT.
FOR THE OVERNIGHT HOURS...SHORT RANGE MODELS HAVING TROUBLE
RESOLVING THE DETAILS OF SPECIFIC AREAS OF LIFT...BUT BOTH
THE NAM AND THE GFS HAVE PCPN RESPONSE LINGERING ACRS NC...
SO WILL HANG ONTO LIKELY CVRG THERE AND DROP POP TO SCATTERED
EVERYWHERE ELSE.

ON FRIDAY...CONTINUED UNSETTLED WEATHER LOOKS PROBABLE AS UPPER
TROUGH AXIS DIGS JUST UPSTREAM OF THE CWFA WITH A PRETTY STOUT
AREA OF LARGE SCALE ASCENT AHEAD OF THE TROUGH AXIS. AGAIN...
MODELS LINGER DEEP RH WITHIN THE CWFA AND DECENT AGREEMENT
AMONG NUMERICAL GUIDANCE POP ADVERTISING ANOTHER AFTERNOON/EVENING
WITH NUMEROUS TSTMS.

&&

.LONG TERM (FRIDAY NIGHT THROUGH THURSDAY)...
THE UPPER TROUGH AXIS WILL SLOWLY DRIFT TO THE EAST COAST DURING THE
WEEKEND AS THE SURFACE FRONT LINGERS AND GRADUALLY FADES OVER OR
NEAR THE COASTAL PLAIN DURING THE NEXT SEVERAL DAYS.  HIGH
PRECIPITABLE WATER VALUES OF OVER TWO INCHES WILL COEXIST WITH THE
FRONT AT LEAST THROUGH THE FIRST HALF OF THE WEEKEND.  A GOOD AREA
OF OMEGA WILL MOVE NORTHEAST NEAR INTERSTATE 85 FRIDAY NIGHT.  AFTER
THAT...NUMEROUS SHOWERS AND THUNDERSTORMS WILL BE MAINLY CONFINED TO
LOCATIONS SOUTHEAST OF INTERSTATE 85. A FEW INCHES OF RAIN COULD
FALL IN PARTS OF THE CAROLINAS AND GEORGIA DURING THE NEXT FEW DAYS.

IF THE FRONT REMAINS CLOSER TO THE COAST AS EXPECTED AND SLOWLY
DISSIPATE...OUR CHANCES OF RAIN WILL DIMINISH GOING INTO THE
UPCOMING WEEK.  WITH A COOLER AIRMASS AND LOTS OF CLOUDINESS...NO
MORE NEAR RECORD TEMPERATURES FOR A WHILE.  HIGH TEMPERATURES WILL
BE BACK TO NEAR NORMAL BY MID NEXT WEEK.

WE WILL THEN BE WATCHING THE PROGRESS OF THE NEXT TROPICAL SYSTEM
WHICH IS PROJECTED TO APPROACH THE BAHAMAS IN MID WEEK THEN PERHAPS
MOVE WEST WITH HIGH PRESSURE BLOCKING IT FROM GOING NORTH.

&&

.AVIATION...
THE COMBINATION OF DEEPER RH PRESSING IN FROM THE NORTHWEST...A
MODERATELY TO VERY UNSTABLE AIRMASS AND LLVL CONVERGENCE AXIS
BISECTING THE CWFA COINCIDENT WITH SYNOPTIC SCALE FRONT...SHOULD
CONTINUE TO PROMOTE DEEP CONVECTIVE CVRG BECOMING NUMEROUS AND
WILL CARRY AT LEAST TWO TEMPO PERIODS AT ALL TAF LOCATIONS TO
COVER HIGH TSTM PROBABILITIES YET REFLECT TIMING UNCERTAINTY.
AS THE NIGHT WEARS ON...SHORT RANGE MODELS PROGGING BETTER
WAA LIFT NORTH OF FRONT AND WILL HANG ONTO SHOWER CHANCES
FURTHER INTO THE OVERNIGHT FOR MY NC TAFS. AT THIS POINT...
DOES NOT LOOK LIKE ANYTHING WORSE THAT MVFR RESTRICTIONS
DURING THE PRE-DAWN HOURS.

&&

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

SHORT TERM...CSH
LONG TERM...DEO
AVIATION...CSH

Hazardous weather outlook, Jul 28, 4:10 AM EDT, 17 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
410 AM EDT THU JUL 28 2005

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-
SCZ001>014-019-290815-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-CALDWELL-
ALEXANDER-IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-
BUNCOMBE-MCDOWELL-BURKE-CATAWBA-ROWAN-GRAHAM-NORTHERN JACKSON-
MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-POLK-RUTHERFORD-
CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-
CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-
GREENWOOD-
410 AM EDT THU JUL 28 2005

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

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS THIS MORNING...THEN
THUNDERSTORMS ARE LIKELY THROUGH THE NIGHT. SOME STORMS COULD
BECOME SEVERE WITH DAMAGING WINDS...ESPECIALLY THIS AFTERNOON AND
EVENING. PERIODS OF HEAVY RAIN ARE ALSO LIKELY AND FLOODING WILL
BE POSSIBLE...ESPECIALLY IN AREAS WHERE CELLS TRAIN OR REDEVELOP
OVER THE SAME AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THUNDERSTORMS ARE LIKELY THROUGH SATURDAY...WITH A CHANCE OF
STORMS CONTINUING THROUGH MONDAY NIGHT. PERIODS OF HEAVY RAIN ARE
EXPECTED AND FLOODING WILL BE POSSIBLE INTO THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

RB

In the hours before

Local storm report, Jul 28, 8:13 PM EDT, 1 hour 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
813 PM EDT THU JUL 28 2005

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

0730 PM     TSTM WND DMG     TROUTMAN                35.70N 80.89W
07/28/2005                   IREDELL            NC   COUNTY OFFICIAL

            TREES DOWN IN TROUTMAN.

&&

TJB

Special weather statement, Jul 28, 8:20 PM EDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
820 PM EDT THU JUL 28 2005

NCZ064-SCZ002-005-290130-
TRANSYLVANIA-PICKENS MOUNTAINS-GREATER PICKENS-
INCLUDING THE CITY OF...BREVARD
820 PM EDT THU JUL 28 2005

AN AREA OF SHOWERS AND THUNDERSTORMS WILL MOVE FROM SOUTHWEST TO
NORTHEAST ACROSS TRANSYLVANIA AND PICKENS COUNTIES EARLY TONIGHT.
LOCALLY HEAVY WILL CAUSE PONDING OF WATER IN POOR DRAINAGE AREAS.
WATER LEVELS WILL RISE IN CREEKS AND SMALL STREAMS.

STAY IN TOUCH WITH THE LATEST FORECASTS AND WEATHER CONDITIONS
DURING THE REMAINDER OF TONIGHT.

LGL

Local storm report, Jul 28, 8:27 PM EDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
827 PM EDT THU JUL 28 2005

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

0813 PM     TSTM WND DMG     SALEM                   34.89N 82.98W
07/28/2005                   OCONEE             SC   EMERGENCY MNGR

            TREES AND POWER LINES DOWN IN SALEM.

0822 PM     TSTM WND DMG     SENECA                  34.69N 82.96W
07/28/2005                   OCONEE             SC   EMERGENCY MNGR

            TREES AND POWER LINES DOWN IN SENECA.

0819 PM     TSTM WND DMG     WESTMINSTER             34.67N 83.09W
07/28/2005                   OCONEE             SC   AIRPLANE PILOT

            TREES AND POWER LINES DOWN IN WESTMINSTER.

&&

BURRUS

Local storm report, Jul 28, 8:34 PM EDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
834 PM EDT THU JUL 28 2005

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

0820 PM     HAIL             8 NW MOCKSVILLE         35.98N 80.66W
07/28/2005  0.75 INCH        DAVIE              NC   TRAINED SPOTTER

            PENNY SIZE HAIL...48 MPH WIND REPORTED ON DAVIS
            INSTRUMENT.

&&

SBK

Local storm report, Jul 28, 8:42 PM EDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
842 PM EDT THU JUL 28 2005

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

0820 PM     TSTM WND DMG     HICKORY                 35.74N 81.33W
07/28/2005                   CATAWBA            NC   COUNTY OFFICIAL

            SEVERAL TREES DOWN ACROSS THE CITY AND MORE IN THE
            SURROUNDING AREA OUTSIDE OF THE CITY LIMITS.

&&

SBK

Special weather statement, Jul 28, 8:50 PM EDT, 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
850 PM EDT THU JUL 28 2005

SCZ003-006-007-010-012-290200-
GREENVILLE MOUNTAINS-GREATER GREENVILLE-SPARTANBURG-ANDERSON-
LAURENS-
INCLUDING THE CITIES OF...GREENVILLE...SPARTANBURG...ANDERSON...
LAURENS
850 PM EDT THU JUL 28 2005

...THUNDERSTORMS AND LOCALLY HEAVY RAIN WILL OCCUR ACROSS MUCH OF
UPSTATE SOUTH CAROLINA EARLY TONIGHT...

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE FROM THE SOUTHWEST
TO THE NORTHEAST ACROSS UPSTATE SOUTH CAROLINA EARLY TONIGHT.
LOCALLY HEAVY RAIN WILL CAUSE PONDING OF WATER IN POOR DRAINAGE
AREAS. WATER LEVELS WILL RISE IN CREEKS AND STREAMS. THE
THUNDERSTORMS WILL ALSO CAUSE LIGHTNING AND POSSIBLY SMALL HAIL
AND GUSTY WIND.

STAY IN TOUCH WITH THE LATEST WEATHER CONDITIONS AND FORECASTS
DURING THE REMAINDER OF TONIGHT.

LGL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 3:07 PM EDT	Severe Thunderstorm Warning	GSP	Laurens	54 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2005 Every severe thunderstorm warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.