Alert archive / South Carolina / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 69, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 24, 2001, 6:53 PM EDT for Chester County, Union County, South Carolina. It was in force for 22 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
- Jun 24, 2001, 6:53 PM EDT (22:53 UTC)
- Expired
- Jun 24, 2001, 7:15 PM EDT
- In force
- 22 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
Counties Chester County, SC, Union County, SC
The radar
The Greer radar (KGSP), 79 km from the middle of the area, began a volume at 22:53 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 |
|---|---|---|---|
| Jun 24, 7:00 PM EDT | Thunderstorm Wind 50 E | Carlisle, SC | Two areas of trees down in and around Carlisle. |
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, 10.9 hours before the alert went out and 205 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.
- Mixed-layer CAPE
- 140 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 767 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KGSP 242252 SVRGSP SCC023-087-242315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 653 PM EDT SUN JUN 24 2001 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL UNION COUNTY IN UPSTATE SOUTH CAROLINA NORTHWESTERN CHESTER COUNTY IN UPSTATE SOUTH CAROLINA * UNTIL 715 PM EDT * AT 651 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES EAST OF UNION...OR ABOUT 5 MILES NORTHWEST OF LEEDS. THE STORM WAS NEARLY STATIONARY. * THE SEVERE THUNDERSTORM WILL BE NEAR... RURAL WESTERN CHESTER COUNTY AT 710 PM EDT RURAL EASTERN UNION COUNTY AT 710 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. $$ RBN
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 24, 2:33 PM EDT, 4 hours 20 minutes earlier.
Area forecast discussion, Jun 24, 2:33 PM EDT, 4 hours 20 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 233 PM EDT SUN JUN 24 2001 KGSP 88-D SHOWS SHOWERS...AND SOME THUNDERSTORMS...DEVELOPING IN THE INCREASINGLY UNSTABLE AIRMASS...AS COLD POOL PRECEDING UPPER LOW SINKS SOUTHWARD. SURFACE STREAMLINE ANALYSIS SHOWS A BROAD AREA OF LOW LEVEL CONVERGENCE ACROSS SOUTHERN TWO THIRDS OF THE CWFA. LAST RUC RUN SUGGESTS A VORT ASSOCIATED WITH FALLING HEIGHTS OF THE UPPER TROF WILL DROP INTO THE REGION THROUGH THIS EVENING. WILL MAINTAIN CHANCE POPS ALL ZONES OVERNIGHT. LAPSE RATES REMAIN STEEP IN THE WESTERN HALF OF THE CWFA...SO IT WOULD NOT BE A SURPRISE IF ON AND OFF CONVECTION CONTINUED MOST OF THE OVERNIGHT HOURS. MODELS STILL INSIST THAT UPPER LOW WILL CLOSE OFF...GIVING A GLANCING BLOW TO OUR WESTERN MOST COUNTIES BEFORE RETROGRADING INTO THE TENNESSEE VALLEY. BOTH ETA/AVN SHIFT MAXIMUM INSTABILITY AND LIFT INTO THE SOUTHERN MOST ZONES MONDAY...WITH LOW LEVEL FLOW GRADUALLY VEERING TO UPSLOPE DIRECTION AFTER A PROLONGED NORTHEAST FLOW HAS DOMINATED ALL BUT MOUNTAINS. TIME SECTIONS SHOW MOISTURE INCREASING STEADILY DURING THE DAY. WILL GIVE EVERYONE A CHANCE OF CONVECTION TOMORROW...FOLLOWED BY GOOD CHANCE OF SHOWERS MONDAY NIGHT WITH RATHER STRONG 85H FLOW OF 20 TO 25 KTS SUGGESTED ON FORECAST SOUNDINGS...WITH RIDGE AXIS SHIFTING TO OFF THE ATLANTIC COAST AND UPPER LOW CONTINUING A PUSH TO THE WEST...BUT OUR CWFA STILL ON THE UNSETTLED SIDE OF THE SYSTEM. BEST FOCUS FOR CONVECTION TUESDAY REMAINS IN OUR WESTERN MOST ZONES...WHILE EASTERN ZONES COME MORE AND MORE UNDER THE INFLUENCE OF FLOW ASSOCIATED WITH THE BUILDING RIDGE FROM OFF THE MID ATLANTIC COAST. HIGHEST POPS TUESDAY IN THE WEST...WITH SLIGHTLY BELOW NORMAL MAXIMA DUE ABUNDANT MOISTURE ON TIME SECTIONS. DRY TUESDAY NITE...THEN MOSTLY AFTERNOON/EVENING SHOWERS AND THUNDERSTORMS THROUGH SATURDAY IN MORE OF A SUMMERTIME PATTERN. NEW AVN CONTINUES MRF TREND OF DELAYING NEXT FROPA TIL END OF WEEKEND. FCSTID = 44 GSP 62 80 63 82 / 30 40 50 40 AND 63 81 63 83 / 30 40 50 40 CLT 64 78 64 81 / 30 40 50 30 HKY 60 76 62 76 / 30 40 50 30 AVL 57 72 58 75 / 30 40 50 40 .GSP... GA...NONE. NC...NONE. SC...NONE.
Nearby
Severe Thunderstorm Warnings in South Carolina, 2001Every severe thunderstorm warning in 2001
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.