Alert archive / North Carolina / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 50, NWS Greenville-Spartanburg, SC

May 10, 2005Gaston County, Lincoln County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 10, 2005, 4:13 PM EDT for Gaston County, Lincoln County, North Carolina. It was in force for 62 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 10, 2005, 4:13 PM EDT (20:13 UTC)
Expired: May 10, 2005, 5:15 PM EDT
In force: 62 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

Counties Gaston County, NC, Lincoln County, NC

The radar

The Greer radar (KGSP), 108 km from the middle of the area, began a volume at 20:15 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 12:00Z, 8.2 hours before the alert went out and 140 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1625 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 2 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 May 10, 3:00 PM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, May 10, 3:00 PM EDT, 1 hour 13 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
300 PM EDT TUE MAY 10 2005

.SHORT TERM (TONIGHT THROUGH FRIDAY)...
COVERAGE OF DEEP CONVECTION WILL CONTINUE TO INCREASE THRU LATE DAY
ALONG AND AHEAD OF EASTWARD WOBBLING MID-LVL S/WV...CURRENTLY
SPINNING TOWARD NE GA. POCKETS OF MODERATE INSTABILITY COMBINED WITH
JUST WITH ENUF SHEAR...ESPECIALLY IN THE PIEDMONT...TO SUPPORT SOME
MULTI-CELL CLUSTERS INTO THE EARLY EVENING. ISOLATED SEVERE WEATHER
THREAT WILL CONTINUE AS WELL WITH PRIMARY THREAT BEING LARGE HAIL
THANKS TO LOW WET BULB ZERO HEIGHTS. GIVEN THE COMBINATION OF
WEAKENING DEEP LAYER FORCING AND BLYR STABILIZATION THANKS TO
LOSS OF HEATING...CVRG EXPECTED TO WANE SLOWLY DURING THE EVENING
HOURS.

ON WEDNESDAY...IT CONTINUES TO LOOK LIKE WE WILL BE UNDER MEAN
NORTHERLY FLOW THROUGH A DEEP LAYER BETWEEN BUILDING UPPER RIDGE TO
OUR WEST AND UPPER LOW ALONG COAST. SOME DEGREE OF LLVL EASTERLY FLOW
DEVELOPS WITHIN WEAKLY FORCED ATMOSPHERE...SO COULD BE DIURNAL FOCUS
OF TSTMS NEAR THE HIGHER TERRAIN OR PERHAPS EAST OF THE CWFA WHERE
BETTER LLVL CONVERGENCE LOOKS TO SET UP. AT ANY RATE...A SHOTGUN
SLIGHT CHANCE FOR DIURNAL STORMS FOR ALL AREAS WILL CONTINUE.

STRENGTHENING UPPER RIDGE TO BUILD OVER THE CWFA THURSDAY...LEADING
TO WHAT LOOKS LIKE A PRETTY SUPPRESSED ATMOSPHERE...BUT NAM/GFS IN
GOOD AGREEMENT WITH ORIENTATION AND MAGNITUDE OF E-W ORIENTED
INSTABILITY AXIS ACRS NC...SO A SLIGHT CHANCE FOR AFT/EVE STORMS
WILL BE PLACED IN THIS AREA. TRICKY FCST SETTING UP FOR THU
NITE/FRIDAY AS UPPER RIDGE LINGERS BUT A BACKDOOR FRONT APRCHS.
THIS BNDRY COULD BE THE FOCUS FOR DEEP CONVECTION...PROBABLY
JUST DURING THE DAYTIME HOURS ON FRIDAY...AND HOW MUCH COOLER AIR
WORKS INTO CENTRAL/WESTERN NC BEHIND FRIDAY LEAVES MAXES
QUESTIONABLE AS WELL.
&&

.LONG TERM (FRIDAY NIGHT THROUGH TUESDAY)...
HAVE CLOSELY FOLLOWED HPC SCENARIO OF ECMWF THROUGH THE MEDIUM
RANGE. THIS SCENARIO WILL BRING A SURFACE FRONT IN FROM THE WEST ON
SUNDAY THAT WILL LAY DOWN ACROSS THE FORECAST AREA ON MONDAY. AS A
RESULT...A THREAT OF SHOWERS AND THUNDERSTORMS WILL EXIST THROUGHOUT
THE MEDIUM RANGE PERIOD...PARTICULARLY SUNDAY AND MONDAY. WILL LIMIT
POP TO CHANCE AT THIS POINT. TEMPS WILL FOLLOW HPC GUIDANCE.
&&

.AVIATION...
PASSAGE OF UPPER LOW AND COLD AIR ALOFT WILL KEEP MODERATE
INSTABILITY ACROSS THE WESTERN CAROLINAS INTO THE EARLY EVENING.
EXPECT MOST TAF SITES TO EVENTUALLY HAVE A BRUSH WITH
THUNDERSTORMS...MOST LIKELY AT KAVL THROUGH THE MID AFTERNOON AND
KCLT DURING THE LATE AFTERNOON. WILL AMEND TAFS AS CONVECTIVE TRENDS
DICTATE. APART FROM CONVECTIVE STORMS...CLOUDS SHOULD REMAIN VFR.
CONVECTION SHOULD WANE IN THE MID TO LATE EVENING LEAVING A GREAT
DEAL OF CONVECTIVE DEBRIS OVERNIGHT. NEXT SET OF TAFS WILL MOST
LIKELY DEAL WITH FOG AT LOCATIONS THAT EXPERIENCE PRECIP. AFTER THE
FOG BURNS OFF...MAINLY CIRRUS WITH A LIGHT NE FLOW IN THE MORNING.
&&

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

SHORT TERM...CSH
LONG TERM...PM
AVIATION...PM

Hazardous weather outlook, May 10, 7:14 AM EDT, 8 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
714 AM EDT TUE MAY 10 2005

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-
SCZ001>014-019-111115-
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-
OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-
CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-CHESTER-GREENWOOD-
714 AM EDT TUE MAY 10 2005

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL DEVELOP
ACROSS THE AREA TODAY...MAINLY THIS AFTERNOON. ONE OR TWO SEVERE
THUNDERSTORMS WILL BE POSSIBLE...WITH LARGE HAIL AND PERHAPS A
DAMAGING WIND GUST OR TWO BEING THE PRIMARY THREATS. IN
ADDITION...STORMS DEVELOPING TODAY WILL MOVE VERY SLOWLY...
RESULTING IN LOCALLY HEAVY RAINFALL...AND POSSIBLY ISOLATED FLASH
FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
ISOLATED TO SCATTERED...MAINLY AFTERNOON AND EVENING THUNDERSTORMS
ARE EXPECTED FOR MUCH OF THE PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED.

LANE

In the hours before

Special weather statement, May 10, 11:23 AM EDT, 4 hours 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1123 AM EDT TUE MAY 10 2005

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-102200-
ABBEVILLE-ALEXANDER-ANDERSON-AVERY-BUNCOMBE-BURKE NC-CABARRUS-
CALDWELL-CATAWBA-CHEROKEE SC-CHESTER-CLEVELAND-DAVIE-ELBERT-
FRANKLIN GA-GASTON-GRAHAM-GREATER GREENVILLE-GREATER OCONEE-
GREATER PICKENS-GREENVILLE MOUNTAINS-GREENWOOD-HABERSHAM-HART-
HAYWOOD-HENDERSON-IREDELL-LAURENS SC-LINCOLN NC-MACON NC-MADISON NC-
MCDOWELL-MECKLENBURG-MITCHELL NC-NORTHERN JACKSON NC-
OCONEE MOUNTAINS-PICKENS MOUNTAINS-POLK NC-RABUN-ROWAN-RUTHERFORD-
SOUTHERN JACKSON NC-SPARTANBURG-STEPHENS-SWAIN-TRANSYLVANIA-UNION NC-
UNION SC-YANCEY-YORK-
1123 AM EDT TUE MAY 10 2005

...SEVERE WEATHER OUTLOOK...

AN UPPER LEVEL AREA OF LOW PRESSURE WILL BE MOVING EAST ACROSS THE
REGION THIS AFTERNOON...AND WILL TRIGGER SCATTERED TO
NUMEROUS THUNDERSTORMS.

IN ADDITION...AS THE ATMOSPHERE BECOMES INCREASINGLY UNSTABLE...
THUNDERSTORMS WILL HAVE THE POTENTIAL TO GROW TO A SUFFICIENT HEIGHT
TO PROMOTE HAIL DEVELOPMENT. THANKS TO RATHER COOL TEMPERATURES IN
THE MIDDLE LEVELS OF THE ATMOSPHERE...A FEW STORMS COULD PRODUCE
HAIL THE SIZE OF PENNIES TO QUARTERS.

THE NATIONAL WEATHER SERVICE WILL CONTINUE TO MONITOR THUNDERSTORM
DEVELOPMENT THROUGHOUT THE DAY. STAY TUNED TO NOAA WEATHER RADIO...
OR YOUR FAVORITE MEDIA SOURCE...FOR THE LATEST WEATHER INFORMATION.

Special weather statement, May 10, 1:45 PM EDT, 2 hours 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
145 PM EDT TUE MAY 10 2005

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-
SCZ001>014-019-102115-
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-
OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
GREATER OCONEE-GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-
CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-CHESTER-GREENWOOD-
INCLUDING THE CITIES OF...CLAYTON...CLARKESVILLE...TOCCOA...
HARTWELL...ELBERTON...NEWLAND...STATESVILLE...MOCKSVILLE...
SPRUCE PINE...CHEROKEE...WAYNESVILLE...ASHEVILLE...MARION...
MORGANTON...HICKORY...SALISBURY...SYLVA...FRANKLIN...BREVARD...
HENDERSONVILLE...COLUMBUS...RUTHERFORDTON...SHELBY...LINCOLNTON...
GASTONIA...CHARLOTTE...CONCORD...MONROE...GREENVILLE...
SPARTANBURG...GAFFNEY...ROCK HILL...ANDERSON...ABBEVILLE...
LAURENS...UNION...CHESTER...GREENWOOD
145 PM EDT TUE MAY 10 2005

...STRONG STORMS TO AFFECT THE WESTERN CAROLINAS AND NORTHEAST
GEORGIA THIS AFTERNOON...

AN UPPER LEVEL STORM WILL SLOWLY CROSS THE REGION THIS AFTERNOON
AND PRODUCE FAIRLY STRONG SCATTERED TO WIDESPREAD SHOWERS AND
THUNDERSTORMS. SIGNIFICANT STORM ACTIVITY IS CURRENTLY OCCURING
ACROSS THE MOUNTAINS OF NORTH CAROLINA AND NORTHEAST GEORGIA.
THESE STORMS HAVE A HISTORY OF PRODUCING PEA SIZE HAIL...STRONG
WINDS...AND TORRENTIAL RAINFALL. RAINFALL RATES ACROSS THE MOUNTAINS
HAVE RANGED BETWEEN A FEW TENTHS OF AN INCH TO AROUND ONE AND HALF
INCHES PER HOUR WITH THE HEAVIER STORMS. AREAS OF LOCALIZED
FLOODING COULD OCCUR ESPECIALLY ALONG LOW LYING AREAS AND POOR
DRAINAGE AREAS.

STORM ACTIVITY IS EXPECTED TO DEVELOP ACROSS THE UPSTATE OF
SOUTH CAROLINA BY MID AFTERNOON...AS WELL AS THE FOOTHILLS AND
PEIDMONT OF NORTH CAROLINA. THE BIGGEST THREAT WITH THESE STORMS
WILL BE THE POTENTIAL FOR LARGE HAIL AND STRONG WINDS.
HOWEVER...RAINFALL RATES WITH THESE SLOW MOVING STORMS WILL BE
HIGH ENOUGH TO PRODUCE URBAN FLOODING AND SIGNIFICANTLY LIMIT
VISIBILITIES WHILE DRIVING.

KRENTZ

Local storm report, May 10, 2:04 PM EDT, 2 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
204 PM EDT TUE MAY 10 2005

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

1245 PM     HAIL             4 E FRANKLIN            35.18N 83.31W
05/10/2005  0.88 INCH        MACON              NC   PUBLIC

            NICKEL SIZE HAIL AT CULLASAJA COUNTRY STORE ON HWY 64.

0150 PM     HAIL             1 S TOCCOA              34.57N 83.32W
05/10/2005  0.75 INCH        STEPHENS           GA   TRAINED SPOTTER

            3/4 INCH HAIL NEAR TOCCOA ON HWY 17 NEAR JUNCTION 123.

0203 PM     HAIL             3 E TOCCOA              34.58N 83.27W
05/10/2005  1.00 INCH        STEPHENS           GA   TRAINED SPOTTER

            DIME TO QUARTER SIZE HAIL ON 123 EAST OF TOCCOA.

&&

TJB

Local storm report, May 10, 2:22 PM EDT, 1 hour 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
222 PM EDT TUE MAY 10 2005

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

0220 PM     HAIL             2 E UNION               34.72N 81.59W
05/10/2005  1.75 INCH        UNION              SC   EMERGENCY MNGR

            PENNY TO GOLF BALL SIZE HAIL AT MONARCH MILLS EAST OF
            UNION.

&&

TJB

Local storm report, May 10, 3:54 PM EDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
354 PM EDT TUE MAY 10 2005

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

0345 PM     HAIL             8 E ABBEVILLE           34.18N 82.24W
05/10/2005  0.75 INCH        GREENWOOD          SC   PUBLIC

            ABBEVILLE COUNTY 911 REPORTED 3/4 INCH HAIL 10 MILES WEST
            OF GREENWOOD...VERY CLOSE TO THE ABBEVILLE/GREENWOOD
            COUNTY LINE. THIS LOCATION IS ALSO 10 MILES WEST OF
            GREENWOOD.

&&

BURRUS

Local storm report, May 10, 4:10 PM EDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
410 PM EDT TUE MAY 10 2005

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

0330 PM     HAIL             HARTWELL                34.35N 82.93W
05/10/2005  0.75 INCH        HART               GA   TRAINED SPOTTER

            PENNY SIZE HAIL AT THE HARTWELL POST OFFICE.

&&

SBK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 12:45 PM EDT	Severe Thunderstorm Warning	GSP	Macon	60 min
May 10, 2:04 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	53 min
May 10, 4:49 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg	56 min
May 10, 4:54 PM EDT	Severe Thunderstorm Warning	GSP	Caldwell	66 min
May 10, 5:05 PM EDT	Severe Thunderstorm Warning	GSP	Mitchell, Yancey	55 min
May 10, 5:14 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Catawba	61 min
May 10, 5:53 PM EDT	Severe Thunderstorm Warning	GSP	Iredell	67 min
May 10, 6:13 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Rowan	47 min
May 10, 1:59 PM EDT	Severe Thunderstorm Warning	GSP	Union	61 min
May 10, 2:32 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	43 min
May 10, 2:45 PM EDT	Severe Thunderstorm Warning	GSP	York	45 min
May 10, 2:58 PM EDT	Severe Thunderstorm Warning	GSP	Chester	33 min
May 10, 3:54 PM EDT	Severe Thunderstorm Warning	GSP	Greenwood	66 min
May 10, 4:08 PM EDT	Severe Thunderstorm Warning	GSP	York	50 min
May 10, 4:10 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville	50 min
May 10, 4:10 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	65 min
May 10, 4:25 PM EDT	Severe Thunderstorm Warning	GSP	Laurens	66 min
May 10, 1:51 PM EDT	Severe Thunderstorm Warning	GSP	Stephens	39 min
May 10, 3:25 PM EDT	Severe Thunderstorm Warning	GSP	Hart	34 min

Nearby

Severe Thunderstorm Warnings in North 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.