Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 122, NWS Greenville-Spartanburg, SC

July 22, 2000Spartanburg County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 22, 2000, 3:25 PM EDT for Spartanburg County, South Carolina. It was in force for 50 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: Jul 22, 2000, 3:25 PM EDT (19:25 UTC)
Expired: Jul 22, 2000, 4:15 PM EDT
In force: 50 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Spartanburg County, SC

The radar

The Greer radar (KGSP), 22 km from the middle of the area, began a volume at 19:28 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
Jul 22, 3:53 PM EDT	Thunderstorm Wind 60 E	Inman, SC
Jul 22, 3:53 PM EDT	Hail 1.5	Inman, SC

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, 7.4 hours before the alert went out and 228 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: 924 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

197 
WUUS52 KGSP 221924
SVRGSP
SCC083-222015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
325 PM EDT SAT JUL 22 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 415 PM EDT

* AT 322 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS 10 MILES SOUTH OF
  COLUMBUS...OR ABOUT 3 MILES WEST OF CAMPOBELLO...MOVING SOUTHEAST
  AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CAMPOBELLO AT 325 PM EDT
  INMAN AT 345 PM EDT
  BOILING SPRINGS AT 355 PM EDT
  SPARTANBURG AT 415 PM EDT

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.

$$

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 Jul 22, 2:48 PM EDT, 37 minutes earlier.

Area forecast discussion, Jul 22, 2:48 PM EDT, 37 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
248 PM EDT SAT JUL 22 2000

CONVECTION WILL CONTINUE THROUGH THE EVENING. WILL TREND EVENING
POPS TO ONGOING CONVECTION. UPR TROF NOW OVER THE EAST WILL CONTINUE
THROUGH THE PERIOD. A SERIES OF SHORT WAVES MOVE THROUGH THE TROF
SUNDAY AND MONDAY WITH GOOD AMOUNTS OF UPPER DIVERGENCE AND UVV.
MOIST UNSTABLE AIR MASS REMAINS IN PLACE ACROSS THE CWFA...ALTHOUGH
THE AIR IS A LITTLE DRIER OVER THE NC MTNS. LOW PRESSURE ALONG THE
STATIONARY FRONT ALONG THE GULF KEEPS A MOIST LOW LEVEL ELY FLOW
ACROSS THE SE. ALL THIS WILL COMBINE TO KEEP THE CHC OF AFT/EVE TSRA
HIGH ACROSS THE CWFA.

TEMPS A LITTLE COOLER SUNDAY THEN A LITTLE COOLER AGAIN MONDAY. THIS
DUE TO CLOUDS...PRECIP...ELY FLOW AND A LITTLE COOLER THICKNESSES.

...PRELIM NUMBERS...
GSP   69  85  67  84 /  20  60  40  50
AND   70  86  68  84 /  20  60  40  50
CLT   69  85  67  84 /  30  60  50  50
HKY   68  84  66  83 /  20  60  40  50
AVL   63  77  62  77 /  20  50  30  40

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

RWH

In the hours before

Special weather statement, Jul 22, 12:23 PM EDT, 3 hours 2 minutes before

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-222000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1223 PM EDT SAT JUL 22 2000

...SEVERE WEATHER POSSIBLE THIS AFTERNOON AND EVENING ACROSS THE
WESTERN CAROLINAS AND EXTREME NORTHEAST GEORGIA...

A MOIST...UNSTABLE AIR MASS REMAINS ACROSS THE AREA TODAY AND
THUNDERSTORMS HAVE BEGUN TO DEVELOP. AN UPPER LEVEL DISTURBANCE WILL
MOVE ACROSS THE AREA TODAY ALSO HELPING TO PRODUCE THUNDERSTORMS.
THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGH THE AFTERNOON AND
EVENING AND SOME COULD BECOME SEVERE. THE MAIN THREAT FROM THESE
STORMS WILL BE DAMAGING DOWNBURST WINDS IN EXCESS OF 58 MPH. SOME
LARGE HAIL IS ALSO POSSIBLE.

SPOTTER GROUPS SHOULD BE PREPARED TO ACTIVATE QUICKLY LATE THIS
AFTERNOON AND THIS EVENING. DISPATCHERS SHOULD ENSURE COUNTY
EMERGENCY MANAGEMENT OFFICIALS ARE AWARE OF THIS INFORMATION.

STAY TUNED TO NOAA WEATHER RADIO OR THE MEDIA FOR MORE INFORMATION ON
THIS SEVERE WEATHER SITUATION.

RWH

Local storm report, Jul 22, 1:22 PM EDT, 2 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
122 PM EDT SAT JUL 22 2000

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

117 PM     MAULDIN                   SC   1.00 INCH HAIL
07/22/00   GREENVILLE                     QUARTER SIZED HAIL
                                          REPORTED BY OFF DUTY NWS
                                          EMPLOYEE.

RWH

Local storm report, Jul 22, 3:09 PM EDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
309 PM EDT SAT JUL 22 2000

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

230 PM     12 NW LAURENS             SC   WIND DAMAGE
07/22/00   LAURENS                        DAMAGE TO A
                                          GARAGE...PORCH AND ROOF
                                          AT A HOME ON ALLEN BRIDGE
                                          ROAD ON THE EAST SIDE OF
                                          FOUNTAIN INN. REPORT FROM
                                          LAURENS 911.

SAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 1:11 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	49 min
Jul 22, 4:10 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	50 min
Jul 22, 4:46 PM EDT	Severe Thunderstorm Warning	GSP	Laurens	44 min
Jul 22, 6:13 PM EDT	Severe Thunderstorm Warning	GSP	Chester	47 min

Nearby

Severe Thunderstorm Warnings in South 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.