Alert archive / North Carolina / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 412, NWS Greenville-Spartanburg, SC

September 8, 2008Iredell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Sep 8, 2008, 10:27 PM EDT for Iredell County, North 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
Sep 8, 2008, 10:27 PM EDT (02:27 UTC)
Expired
Sep 8, 2008, 11:03 PM EDT
In force
36 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

County Iredell County, NC

The radar

The Roanoke radar (KFCX), 146 km from the middle of the area, began a volume at 02:29 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, 2.5 hours before the alert went out and 93 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 2008-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1193 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 2008-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
1193 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1250 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
52 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 Sep 8, 10:04 PM EDT, 23 minutes earlier.

Area forecast discussion, Sep 8, 10:04 PM EDT, 23 minutes before
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Hazardous weather outlook, Sep 8, 10:50 AM EDT, 11 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1050 AM EDT MON SEP 8 2008

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-091500-
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-
1050 AM EDT MON SEP 8 2008

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

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE THIS
AFTERNOON AND EVENING. BRIEF HEAVY RAIN...GUSTY WIND...SMALL
HAIL AND LIGHTNING WILL BE THE PRIMARY THREATS ASSOCIATED WITH
STRONGER STORMS TODAY. A FEW OF THE STRONGEST THUNDERSTORMS COULD
PRODUCE DAMAGING WIND GUSTS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED ON TUESDAY AS A
COLD FRONT MOVES INTO THE AREA FROM THE NORTH. ISOLATED SEVERE
STORMS WILL BE POSSIBLE...PRODUCING DAMAGING WIND GUSTS AND/OR
LARGE HAIL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

HG

In the hours before

Special weather statement, Sep 8, 9:15 PM EDT, 1 hour 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
915 PM EDT MON SEP 8 2008

SCZ001-004-090145-
GREATER OCONEE-OCONEE MOUNTAINS-
915 PM EDT MON SEP 8 2008

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL OCONEE COUNTY THROUGH
945 PM EDT...

AT 910 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES SOUTHWEST OF SENECA...OR 11 MILES SOUTH
OF WALHALLA...MOVING NORTH AT 22 MPH.

THIS STORM WILL BE NEAR...
  SENECA BY 920 PM EDT.
  WALHALLA BY 940 PM EDT.

SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LANE
Special weather statement, Sep 8, 9:22 PM EDT, 1 hour 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
922 PM EDT MON SEP 8 2008

NCZ036-056-069-071-090145-
CATAWBA-IREDELL-LINCOLN-MECKLENBURG-
922 PM EDT MON SEP 8 2008

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN LINCOLN...NORTHERN
MECKLENBURG...SOUTHEASTERN CATAWBA AND SOUTHERN IREDELL COUNTIES
THROUGH 945 PM EDT...

AT 919 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES SOUTH OF LAKE NORMAN...OR 17 MILES EAST
OF LINCOLNTON...MOVING NORTHWEST AT 13 MPH.

THIS STORM WILL BE NEAR...
  LAKE NORMAN BY 935 PM EDT.
  DENVER BY 940 PM EDT.
  TERRELL BY 945 PM EDT.

SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LANE
Special weather statement, Sep 8, 9:53 PM EDT, 34 minutes before
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Special weather statement, Sep 8, 9:55 PM EDT, 32 minutes before
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Special weather statement, Sep 8, 10:01 PM EDT, 26 minutes before
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Special weather statement, Sep 8, 10:23 PM EDT, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 9:28 PM EDTSevere Thunderstorm WarningGSPCatawba, Iredell, Lincoln47 min
Sep 8, 11:16 PM EDTAreal Flood AdvisoryGSPIredell, Rowan119 min
Sep 8, 11:24 PM EDTAreal Flood AdvisoryGSPAvery, Burke, Caldwell111 min
Sep 9, 2:54 PM EDTSevere Thunderstorm WarningGSPBurke, McDowell, Rutherford35 min
Sep 9, 3:48 PM EDTAreal Flood AdvisoryGSPIredell117 min
Sep 9, 5:03 PM EDTAreal Flood AdvisoryGSPCaldwell48 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2008Every severe thunderstorm warning in 2008

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.