Alert archive / South Carolina / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 14, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Apr 8, 2010, 5:50 PM EDT for McCormick County, South Carolina; Lincoln County, Georgia. It was in force for 70 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
- Apr 8, 2010, 5:50 PM EDT (21:50 UTC)
- Expired
- Apr 8, 2010, 7:00 PM EDT
- In force
- 70 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
Counties Lincoln County, GA, McCormick County, SC
The radar
The Greer radar (KGSP), 116 km from the middle of the area, began a volume at 21:51 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 8, 4:28 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.8 hours before the alert went out and 203 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
- 7 J/kg
- Mixed-layer CIN
- -320 J/kg
- Mixed-layer LCL
- 784 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Columbia, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 8, 4:41 PM EDT, 1 hour 9 minutes earlier.
Area forecast discussion, Apr 8, 4:41 PM EDT, 1 hour 9 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
441 PM EDT THU APR 8 2010
.SYNOPSIS...
EXPECT SHOWER AND THUNDERSTORM ACTIVITY THIS AFTERNOON AND EVENING
AHEAD OF A COLD FRONT THAT WILL COME THROUGH TONIGHT. EXPECT COOLER
CONDITIONS BEHIND THE FRONT FRIDAY INTO THE WEEKEND...AS HIGH
PRESSURE BUILDS INTO THE REGION. FAIR WEATHER AND SEASONAL
TEMPERATURES EXPECTED EARLY TO MID NEXT WEEK.
&&
.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
LINE OF THUNDERSTORMS APPROACHING WITH STRONG WIND SHEAR. RECENTLY
ISSUED TORNADO WATCH FOR NORTHERN AND WESTERN PARTS OF THE CAE
CWA. SPC CHARTS SHOW GOOD PVA HEADING INTO AREA AND MOISTURE FLUX
TO REGION. AGS ALREADY HAS DEWPOINT INCREASING TO 61 F. WILL ISSUE
UPDATED ZONES SHORTLY.
PREVIOUS DISCUSSION...
MAIN STORY IS SHOWER AND THUNDERSTORM ACTIVITY...AND ANY
POSSIBILITY OF SEVERE WEATHER...FOR LATER THIS AFTERNOON AND
EVENING. UPPER TROUGH ALONG THE MISS VALLEY WILL SWING EAST
THROUGH OUR REGION TONIGHT AND FRIDAY. SURFACE COLD FRONT
CURRENTLY STRETCHES ACROSS E TENN AND SW INTO ALA. BATCH OF SHOWER
AND THUNDERSTORM ACTIVITY AHEAD OF THE FRONT CURRENTLY COVERS MUCH
OF NORTHERN AND WESTERN GA AND E ALA. IT APPEARS THAT THE MAIN
UPPER ENERGY WILL COME THOUGH BEHIND THE FRONT LATE TONIGHT.
ALSO...PROJECTED INSTABILITIES STILL APPEAR WILL BE ON THE WEAK AS
LOW LEVEL MOISTURE APPEARS A LITTLE LIMITED. WIND FIELDS AND SHEAR
STILL PROJECTED TO BE CONSIDERABLE. SO...ANY OF THE STRONGER
THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE A STRONG DAMAGING
WIND GUST. SPC CONTINUES TO HAVE REGION IN A SLIGHT RISK OF
SEVERE.
&&
.SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY NIGHT/...
HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT. THIS AIR MASS OF
PACIFIC ORIGIN AND WILL KNOCK TEMPS BACK DOWN TO NEAR...OR JUST
BELOW...NORMAL VALUES. DRIER AIR AND POSSIBILITY OF GOOD
RADIATIONAL COOLING CONDITIONS...AS THE SURFACE HIGH PRESSURE CENTER
NESTLES INTO OUR REGION OVER THE WEEKEND...COULD ALLOW FOR SOME COOL
MORNINGS SAT/SUN. IT APPEARS THAT THERE COULD STILL BE SOME PRESSURE
GRADIENT AND A LITTLE WIND FRI NT/SAT MORN...SO CONFIDENCE IS LOW.
PERHAPS BETTER RADIATIONAL COOLING CONDITIONS COULD OCCUR SAT
NT/SUN MORN. WILL HAVE TO MONITOR FOR THE POSSIBILITY OF FROST IN
SOME OF THE NORMALLY COOLER LOCATIONS...BUT LOW CONFIDENCE
PRECLUDES ANY MENTION OF FROST AT THIS TIME.
&&
.LONG TERM /MONDAY THROUGH THURSDAY/...
IT APPEARS THAT HIGH PRESSURE WILL ENSURE FAIR WEATHER AND
SEASONAL TEMPS EARLY TO MID NEXT WEEK. GFS AND ECMWF INDICATE
STRONG UPPER RIDGE BUILDING OVER THE OHIO/TENN VALLEY
REGION...WITH INDICATIONS OF A BACK DOOR FRONT TO COME DOWN THE
EAST COAST AND THROUGH OUR REGION TUESDAY...BUT WILL NOT INTRODUCE
ANY POPS AT THIS TIME. GENERALLY ACCEPTED BLEND OF HPC AND MOS
GUIDANCE.
&&
.AVIATION /21Z THURSDAY THROUGH TUESDAY/...
A STRONG COLD FRONT APPROACHING WEST GEORGIA AT 17Z WILL MOVE
ACROSS TAF SITES EARLY THIS EVENING. SOUTHWEST WINDS 15 TO 20 KTS
WITH HIGHER GUSTS THROUGH AFTERNOON AND INTO EARLY EVENING. MAINLY
STRATO-CU BROKEN CLOUD DECK THROUGH 21Z. RADAR SHOWING SHOWERS
AND THUNDERSTORMS ACROSS WEST GEORGIA MOVING NORTHEAST. THESE
STORMS WILL MOVE ACROSS TAF SITES EARLY THIS EVENING. MODERATE
TURBULENCE POSSIBLE ASSOCIATED WITH CONVECTION. A FEW STORMS
POSSIBLY SEVERE WITH DAMAGING WINDS PRIMARY THREAT. BRIEF PERIOD
MVFR AS STORMS MOVE THROUGH AREA 21Z TO 24Z. WINDS SHIFTING TO
WEST- NORTHWEST AND DIMINISHING BEHIND THE COLD FRONT. VFR
DEVELOPING THROUGH END OF TAF PERIOD.
EXTENDED AVIATION OUTLOOK...VFR CONDITIONS ARE EXPECTED FRIDAY
AFTERNOON THROUGH MONDAY.
&&
.CAE WATCHES/WARNINGS/ADVISORIES...
SC...LAKE WIND ADVISORY UNTIL 7 PM EDT THIS EVENING FOR SCZ015-016-
018-020>022-025>031-035>038-041.
GA...LAKE WIND ADVISORY UNTIL 7 PM EDT THIS EVENING FOR GAZ040-
063>065-077.
&&
SYNOPSIS...
NEAR TERM...07
SHORT TERM...
LONG TERM...
AVIATION...Hazardous weather outlook, Apr 8, 5:04 AM EDT, 12 hours 46 minutes before
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</html>In the hours before
Special weather statement, Apr 8, 5:33 PM EDT, 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA SC 533 PM EDT THU APR 8 2010 GAZ040-SCZ018-082230- LINCOLN-MCCORMICK- 533 PM EDT THU APR 8 2010 ...STRONG GUSTY WINDS WILL AFFECT LINCOLN AND MCCORMICK COUNTIES... SHOWERS AND POSSIBLY THUNDERSTORMS WILL MOVE INTO MUCH OF THE COUNTIES OF LINCOLN AND MCCORMICK THROUGH 800 PM. THIS INCLUDES LAKE THURMOND. WIND GUSTS AROUND 40 MPH WILL LIKELY OCCUR. STRONGER WIND GUSTS ARE POSSIBLE. A TORNADO WATCH IS IN EFFECT. YOU SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER. LISTEN FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Nearby
Severe Thunderstorm Warnings in South Carolina, 2010Severe Thunderstorm Warnings in Georgia, 2010Every severe thunderstorm warning in 2010
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.