Alert archive / North Carolina / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 9, NWS Greenville-Spartanburg, SC

March 17, 2002Buncombe County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 17, 2002, 9:09 AM EST for Buncombe County, North Carolina. It was in force for 36 min. 1 report 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
Mar 17, 2002, 9:09 AM EST (14:09 UTC)
Expired
Mar 17, 2002, 9:45 AM EST
In force
36 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Buncombe County, NC

The radar

The Greer radar (KGSP), 86 km from the middle of the area, began a volume at 14:11 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

TimeReportWhereRemark
Mar 17, 9:30 AM ESTThunderstorm Wind 50 EAsheville, NCA few trees were reported blown down.

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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 2.2 hours before the alert went out and 243 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 12:00Z on 2002-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2002-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 358 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
538 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
358 m²/s²
0-3 km storm-relative helicity
603 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KGSP 171409
SVRGSP
NCC021-171445-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
909 AM EST SUN MAR 17 2002

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN BUNCOMBE COUNTY IN WESTERN NORTH CAROLINA

* UNTIL 945 AM EST

* AT 909 AM EST...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM 11 MILES EAST OF WAYNESVILLE...OR ABOUT 6 MILES WEST
  OF CANDLER...MOVING SOUTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CANDLER AT 910 AM EST.
  BENT CREEK AT 915 AM EST.
  AVERY CREEK AT 925 AM EST.

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.

$$
07

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 Mar 17, 5:58 AM EST, 3 hours 11 minutes earlier.

Area forecast discussion, Mar 17, 5:58 AM EST, 3 hours 11 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
558 AM EST SUN MAR 17 2002

ELEVATED CONVECTION CONTINUES TO TRUDGE EAST INTO ZONES WHERE
THUNDER IS NOT CURRENTLY MENTIONED. EXPECT THIS ACTIVITY TO DECREASE
IN INTENSITY AS IT MOVES INTO MORE STABLE AIR...BUT WILL GO AHEAD
AND MENTION A CHANCE OF THUNDER IN ALL ZONES THIS MORNING.

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

LANE

In the hours before

Local storm report, Mar 17, 6:10 AM EST, 2 hours 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
610 AM EST SUN MAR 17 2002

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

605 AM     JONESVILLE                SC   .75 INCH HAIL
03/17/02   UNION                          JONESVILLE FIRE DEPT
                                          REPORTED DIME HAIL FOR
                                          APRXLY 5 MINUTES...NOW
                                          TAPERING OFF.

JONES
Special weather statement, Mar 17, 6:46 AM EST, 2 hours 23 minutes before
NCZ033-048>053-058-059-062>065-171700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
646 AM EST SUN MAR 17 2002

...SOME HEAVY RAIN TODAY AND TONIGHT - AND SOME FLOODING POSSIBLE BY
TONIGHT...

SHOWERS AND THUNDERSTORMS HAVE BEEN MOVING ACROSS PARTS OF THE NORTH
CAROLINA MOUNTAINS OVERNIGHT.  SOME LOCATIONS HAVE ALREADY RECEIVED
HEAVY SHOWERS...BUT WITH DRY CONDITIONS AND LOW STREAM FLOW...IT
WILL TAKE SOME TIME BEFORE HEAVY RAIN BECOMES A PROBLEM.

THE SHOWERS AND STORMS EXTENDED WELL BACK TO THE WEST INTO EAST AND
MIDDLE TENNESSEE.  THERE ARE SOME INDICATIONS THAT STORMS WILL
REPEAT OVER THE SAME PARTS OF THE MOUNTAINS AGAIN AND AGAIN
TODAY...AND INTO TONIGHT.  LATEST DATA SUGGEST THAT THE THREAT FOR
THE HEAVIEST RAINFALL IS TONIGHT.  DEPENDING ON HOW MUCH RAIN FALLS
DURING THE DAY...THERE COULD BE A THREAT OF SOME FLOODING OR FLASH
FLOODING BY TONIGHT.

YOU SHOULD LISTEN TO UPDATED WEATHER FORECASTS TODAY.  IT IS
POSSIBLE A FLOOD WATCH COULD BE ISSUED TODAY FOR PARTS OF THE
MOUNTAINS.  A FLASH FLOOD WATCH HAS ALREADY BEEN ISSUED BY THE
MORRISTOWN NATIONAL WEATHER SERVICE OFFICE...FOR EXTREME SOUTHWEST
NORTH CAROLINA...EAST TENNESSEE...AND SOUTHWEST VIRGINIA.

JONES

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 8:27 AM ESTFlash Flood WarningGSPMadison3 hr
Mar 17, 8:39 AM ESTSevere Thunderstorm WarningGSPHaywood, Swain36 min
Mar 17, 8:58 AM ESTSevere Thunderstorm WarningGSPJackson47 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2002Every severe thunderstorm warning in 2002

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.