Alert archive / North Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 147, NWS Greenville-Spartanburg, SC

August 10, 2000Jackson County, Swain County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 10, 2000, 2:27 AM EDT for Jackson County, Swain County, North Carolina. It was in force for 63 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 10, 2000, 2:27 AM EDT (06:27 UTC)
Expired: Aug 10, 2000, 3:30 AM EDT
In force: 63 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

Counties Jackson County, NC, Swain County, NC

The radar

The Knoxville radar (KMRX), 87 km from the middle of the area, began a volume at 06:26 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
Aug 10, 2:45 AM EDT	Thunderstorm Wind 50 E	Bryson City, NC	A tree and many large branches were blown down and blocking a road.
Aug 10, 3:15 AM EDT	Thunderstorm Wind 50 E	Sylva, NC	Several power lines were blown down and widespread power outages occurred.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.5 hours before the alert went out and 249 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: 1738 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 1502 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 17 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 100629
SVRGSP
NCC021-087-099-115-173-100730-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
227 AM EDT THU AUG 10 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JACKSON COUNTY IN WESTERN NORTH CAROLINA
  SWAIN COUNTY IN WESTERN NORTH CAROLINA
  MADISON COUNTY IN WESTERN NORTH CAROLINA
  HAYWOOD COUNTY IN WESTERN NORTH CAROLINA
  BUNCOMBE COUNTY IN WESTERN NORTH CAROLINA

* UNTIL 330 AM EDT

* AT 227 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
  SEVERE THUNDERSTORMS WITH DAMAGING WINDS FROM 8 MILES NORTHEAST OF
  MARSHALL TO 23 MILES NORTH OF ROBBINSVILLE...MOVING SOUTHWEST AT 40
  MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MARSHALL AT 230 AM EDT
  WEAVERVILLE AT 235 AM EDT
  SWANNANOA AT 235 AM EDT
  BRYSON CITY AT 240 AM EDT
  WOODFIN AT 240 AM EDT
  ASHEVILLE AT 245 AM EDT
  WAYNESVILLE AT 245 AM EDT
  SYLVA AT 250 AM EDT
  CASHIERS AT 320 AM EDT

PEOPLE IN THE PATH OF THIS LINE OF SEVERE THUNDERSTORMS SHOULD BE
ALERT FOR LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND
LOCALLY HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM.

$$
SAB

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 Aug 10, 1:51 AM EDT, 36 minutes earlier.

Area forecast discussion, Aug 10, 1:51 AM EDT, 36 minutes before

SCZ001>014-019-NCZ033>037-048>059-062>072-082-GAZ010-017-018-026-028-
029-101215-

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
115 AM EDT THU AUG 10 2000

LINE OF STRONG TSTMS MOVG INTO N CWA. SPC ISSUED WATCH BOX INTO MOST
OF THE REST OF W NC AND UPSTATE SC VALID THRU 10Z. MAIN THREAT IS
GUSTY SFC WINDS. SOME LOCATIONS N HAVE EXPERIENCED SIG WIND DAMAGE.
THE LINE SEEMS TO BE WEAKENING SLIGHTLY AND IS NOT AS SOLID AS
EARLIER...BUT STRONG STORMS CONTINUE MOVG INTO W CAROLINAS. ONCE
THIS COMPLEX WEAKENS AND MOVES THRU...EXPECT LULL IN CONVECTION
UNTIL LATE THIS AFTN AND EVE WHEN SFC HEATING HELPS DCRS STABILITY.
NEXT CPL DAYS SHOULD SEE MORE CONVECTION AS UPPER TROUGH DEEPENS
OVER SE US. RIDGE WILL BEGIN BUILDING INTO AREA SUNDAY AND MONDAY.

FCSTID = 77
GSP   96  70  89  67 /  20  20  30  30
AND   97  71  90  68 /  20  20  30  30
CLT   95  70  89  67 /  20  20  30  30
HKY   94  68  88  65 /  20  20  30  30
AVL   90  65  85  62 /  20  20  30  30

.GSP...
GA...NONE.
NC...NONE.
SC...NONE.
RB

In the hours before

Special weather statement, Aug 9, 9:54 PM EDT, 4 hours 33 minutes before

GAZ010-017-NCZ033>037-048>059-062>069-SCZ001>003-100730-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
954 PM EDT WED AUG 9 2000

...SLIGHT CHANCE OF SEVERE THUNDERSTORMS OVERNIGHT IN THE NORTHERN
MOUNTAINS...NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH
CAROLINA...

WEDNESDAY EVENING...A LARGE AREA OF SHOWERS AND THUNDERSTORMS OVER
THE CENTRAL APPALACHIANS...EXTENDING WESTWARD TO THE OHIO VALLEY...
WAS RACING SOUTHWARD...TOWARD THE WESTERN CAROLINAS...AT BETWEEN 55
AND 60 MPH. IF THE AREA WERE TO CONTINUE MOVING AT THIS PACE...THE
LEADING EDGE OF A LINE OF STRONG...TO SEVERE... THUNDERSTORMS WOULD
BE IN THE VICINITY OF THE NORTHERN MOUNTAINS OF NORTH CAROLINA BY
MIDNIGHT. BECAUSE OF THE RAPID MOVEMENT OF THIS AREA...THE
STORM PREDICTION CENTER HAS UPGRADED THE NORTHERN MOUNTAINS...AND
THE NORTHERN FOOTHILLS AND EXTREME NORTHWEST PIEDMONT OF NORTH
CAROLINA...TO A SLIGHT RISK FOR SEVERE WEATHER OVERNIGHT. TOWNS
INCLUDED IN THE SLIGHT RISK AREA INCLUDE BURNSVILLE...NEWLAND...
LENOIR... TAYLORSVILLE...AND MOCKSVILLE.

THE AREA OF CONVECTION IS EXPECTED TO WEAKEN AS IT ENCOUNTERS
SLIGHTLY MORE STABLE AIR OVER OUR REGION...BUT THE RAPID MOVEMENT OF
THE LEADING LINE OF STORMS WILL CREATE FAVORABLE CONDITIONS FOR
DAMAGING STRAIGHT LINE WINDS AND LARGE HAIL. BECAUSE OF THE MOIST
AIRMASS CURRENTLY IN PLACE OVER THE CAROLINAS AND GEORGIA...VERY
HEAVY RAIN WILL ALSO ACCOMPANY ANY THUNDERSTORMS.

THE SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MARCH SOUTHWARD
THROUGH THE PREDAWN...WEAKENING AND EVENTUALLY BREAKING UP.
STILL...WIND GUSTS TO 40 MPH COULD BE EXPERIENCED AS FAR SOUTH AS
ASHEVILLE...HENDERSONVILLE...GLASSY MOUNTAIN...CLAYTON...AND
LINCOLNTON.

STAY TUNED TO NOAA WEATHER RADIO...LOCAL RADIO AND TELEVISION...OR
CABLE TELEVISION FOR THE LATEST WEATHER INFORMATION.

BURRUS

Local storm report, Aug 10, 2:21 AM EDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
221 AM EDT THU AUG 10 2000

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

155 AM     8 W MOCKSVILLE            NC   WIND DAMAGE
08/10/00   DAVIE                          COUNTY COMMS REPORT TREES
                                          DOWN ALONG HIGHWAY 64 IN
                                          THE SOUTHWEST PART OF
                                          COUNTY. POWER OUTAGES
                                          OCCURRED AT 130 AM.

DEO

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 1:14 AM EDT	Severe Thunderstorm Warning	GSP	Avery	61 min
Aug 10, 1:37 AM EDT	Severe Thunderstorm Warning	GSP	Alexander, Davie, Iredell	58 min
Aug 10, 1:56 AM EDT	Severe Thunderstorm Warning	GSP	Caldwell	49 min
Aug 10, 2:04 AM EDT	Severe Thunderstorm Warning	GSP	Catawba	56 min
Aug 10, 2:04 AM EDT	Severe Thunderstorm Warning	GSP	Rowan	56 min
Aug 10, 2:27 AM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Haywood, Madison	63 min
Aug 10, 2:34 AM EDT	Severe Thunderstorm Warning	GSP	Burke	41 min
Aug 10, 2:46 AM EDT	Severe Thunderstorm Warning	GSP	Cabarrus	44 min
Aug 10, 3:02 AM EDT	Severe Thunderstorm Warning	GSP	Gaston, Lincoln, Mecklenburg	58 min
Aug 10, 3:02 AM EDT	Severe Thunderstorm Warning	GSP	McDowell, Rutherford	58 min
Aug 10, 3:02 AM EDT	Severe Thunderstorm Warning	GSP	Cleveland	58 min
Aug 10, 3:05 AM EDT	Severe Thunderstorm Warning	GSP	Graham	55 min
Aug 10, 3:14 AM EDT	Severe Thunderstorm Warning	GSP	Henderson, Polk, Transylvania	61 min
Aug 10, 3:46 AM EDT	Severe Thunderstorm Warning	GSP	Union	44 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2000 Every severe thunderstorm warning in 2000

Sources

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