Alert archive / North Carolina / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 266, NWS Greenville-Spartanburg, SC

June 30, 2007Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 30, 2007, 8:56 PM EDT for Union County, North Carolina. It was in force for 64 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
Jun 30, 2007, 8:56 PM EDT (00:56 UTC)
Expired
Jun 30, 2007, 10:00 PM EDT
In force
64 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Counties, with a storm outline in the text

County Union County, NC

The radar

The Columbia radar (KCAE), 128 km from the middle of the area, began a volume at 00:57 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, 0.9 hours before the alert went out and 134 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 00:00Z on 2007-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 426 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 00:00Z on 2007-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.193958Sfc1 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
426 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
876 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

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 Jun 30, 7:46 PM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jun 30, 7:46 PM EDT, 1 hour 10 minutes before
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Hazardous weather outlook, Jun 30, 4:49 PM EDT, 4 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
449 PM EDT SAT JUN 30 2007

GAZ018-026-028-029-SCZ001>014-019-012100-
STEPHENS-FRANKLIN-HART-ELBERT-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
GREENVILLE MOUNTAINS-GREATER OCONEE-GREATER PICKENS-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE-
LAURENS-UNION SC-CHESTER-GREENWOOD-
449 PM EDT SAT JUN 30 2007

...SEVERE THUNDERSTORM WATCH 466 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

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

.DAY ONE...TONIGHT

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

  SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A STALLED SURFACE FRONT WILL MEANDER ACROSS THE MIDLANDS OF SOUTH
CAROLINA SUNDAY MORNING AND HELP KEEP AREAS SOUTH OF THE INTERSTATE
85 CORRIDOR UNSTABLE AND MOIST THROUGHOUT THE AFTERNOON. ISOLATED
STRONG TO SEVERE THUNDERSTORMS COULD EASILY DEVELOP IN THE AFTERNOON
AS ANY BREAKS IN THE CLOUDS WILL ALLOW HEATING TO ENHANCE
INSTABILITY. THESE STORMS WILL MAINLY BE DRIVEN BY THE AMOUNT OF
HEATING AVAILABLE...SO A FAIRLY QUICK DECREASE IN COVERAGE AND
INTENSITY CAN BE EXPECTED AROUND SUNSET.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

GAZ010-017-NCZ033-035>037-048>053-056>059-062>065-068>072-082-
501>510-012100-
RABUN-HABERSHAM-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-
449 PM EDT SAT JUN 30 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA AND WESTERN NORTH CAROLINA.

.DAY ONE...TONIGHT

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING ACROSS
THE MOUNTAINS OF NORTH CAROLINA AND GEORGIA. THE NORTH CAROLINA
FOOTHILLS AND PIEDMONT MAY SEE STRONG STORMS DEVELOP BY LATE THIS EVENING.
THE SEVERE STORMS WILL BE CAPABLE OF PRODUCING LARGE DAMAGING
HAIL...WINDS STRONG ENOUGH TO TOPPLE TREES AND POWER LINES...AND
ISOLATED HEAVY DOWNPOURS PRODUCING RAINFALL RATES UP TO 2 INCHES
PER HOUR.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A STALLED SURFACE FRONT WILL MEANDER ACROSS THE MIDLANDS OF SOUTH
CAROLINA SUNDAY MORNING AND HELP KEEP AREAS SOUTH OF THE INTERSTATE
85 CORRIDOR UNSTABLE AND MOIST THROUGHOUT THE AFTERNOON. ISOLATED
STRONG TO SEVERE THUNDERSTORMS COULD EASILY DEVELOP IN THE AFTERNOON
AS ANY BREAKS IN THE CLOUDS WILL ALLOW HEATING TO ENHANCE
INSTABILITY. THESE STORMS WILL MAINLY BE DRIVEN BY THE AMOUNT OF
HEATING AVAILABLE...SO A FAIRLY QUICK DECREASE IN COVERAGE AND
INTENSITY CAN BE EXPECTED AROUND SUNSET.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

NED

In the hours before

Special weather statement, Jun 30, 5:32 PM EDT, 3 hours 24 minutes before
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Special weather statement, Jun 30, 6:04 PM EDT, 2 hours 52 minutes before
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Special weather statement, Jun 30, 6:43 PM EDT, 2 hours 13 minutes before
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Special weather statement, Jun 30, 7:04 PM EDT, 1 hour 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
704 PM EDT SAT JUN 30 2007

NCZ036-056-069-071-010000-
CATAWBA-IREDELL-LINCOLN-MECKLENBURG-
704 PM EDT SAT JUN 30 2007

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN LINCOLN...NORTHERN
MECKLENBURG...SOUTHEASTERN CATAWBA AND SOUTHERN IREDELL COUNTIES
THROUGH 800 PM EDT...

AT 703 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR TERRELL...OR 13 MILES EAST OF NEWTON...
MOVING SOUTHEAST AT 20 MPH.

PEOPLE IN NORTHEASTERN LINCOLN...NORTHERN MECKLENBURG...SOUTHEASTERN
CATAWBA AND SOUTHERN IREDELL COUNTIES...INCLUDING THE FOLLOWING
LOCATIONS...

TERRELL...LAKE NORMAN...CORNELIUS AND DAVIDSON...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

BOATERS ON LAKE NORMAN SHOULD HEAD TO SHORE. DO NOT GET CAUGHT OUT
IN THE MIDDLE OF THE LAKE WHEN THE THUNDERSTORM ARRIVES.

SMALL HAIL...AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.
Special weather statement, Jun 30, 7:26 PM EDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
726 PM EDT SAT JUN 30 2007

NCZ072-010015-
CABARRUS-
726 PM EDT SAT JUN 30 2007

...STRONG THUNDERSTORMS WILL AFFECT CABARRUS COUNTY THROUGH 815 PM
EDT...

AT 722 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM ROCKWELL TO 3 MILES
SOUTH OF KANNAPOLIS...MOVING SOUTHEAST AT 20 MPH.

PEOPLE IN CABARRUS COUNTY...INCLUDING THE FOLLOWING LOCATIONS...

KANNAPOLIS...LOWES MOTOR SPEEDWAY...CONCORD...HARRISBURG...MOUNT
PLEASANT AND MIDLAND...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

SMALL HAIL...AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE
STORMS.

MOORE
Special weather statement, Jun 30, 8:00 PM EDT, 56 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
800 PM EDT SAT JUN 30 2007

NCZ082-010100-
UNION-
800 PM EDT SAT JUN 30 2007

...A STRONG THUNDERSTORM WILL AFFECT EASTERN UNION COUNTY THROUGH 900
PM EDT...

AT 756 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES EAST OF MIDLAND...OR 16 MILES SOUTHWEST
OF ALBEMARLE...MOVING SOUTHEAST AT 20 MPH.

PEOPLE IN EASTERN UNION COUNTY...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

SMALL HAIL...AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.

MOORE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 2:54 PM EDTSevere Thunderstorm WarningGSPHenderson51 min
Jul 1, 2:51 PM EDTSevere Thunderstorm WarningGSPAnderson69 min
Jul 1, 3:44 PM EDTSevere Thunderstorm WarningGSPAbbeville61 min
Jul 1, 1:49 PM EDTSevere Thunderstorm WarningGSPRabun56 min
Jul 1, 2:05 PM EDTSevere Thunderstorm WarningGSPHabersham55 min
Jul 1, 2:14 PM EDTSevere Thunderstorm WarningGSPStephens61 min
Jul 1, 2:44 PM EDTSevere Thunderstorm WarningGSPElbert31 min
Jul 1, 3:09 PM EDTSevere Thunderstorm WarningGSPFranklin66 min
Jul 1, 3:15 PM EDTSevere Thunderstorm WarningGSPStephens30 min
Jul 1, 4:27 PM EDTSevere Thunderstorm WarningGSPElbert63 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2007Every severe thunderstorm warning in 2007

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.