Alert archive / South Carolina / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 37, NWS Wilmington, NC

April 8, 2006Georgetown County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Apr 8, 2006, 4:03 PM EDT for Georgetown County, South Carolina. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 8, 2006, 4:03 PM EDT (20:03 UTC)
Expired: Apr 8, 2006, 4:30 PM EDT
In force: 27 min
Issued by: NWS Wilmington, NC
Area: Counties, with a storm outline in the text

County Georgetown County, SC

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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, 1:30 PM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.1 hours before the alert went out and 96 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: 516 J/kg
Mixed-layer CIN: -106 J/kg
Mixed-layer LCL: 873 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KILM 082003
SVRILM
SCC043-082045-
/O.NEW.KILM.SV.W.0037.060408T2003Z-060408T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
403 PM EDT SAT APR 8 2006

THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN GEORGETOWN COUNTY IN NORTHEAST SOUTH CAROLINA

* UNTIL 445 PM EDT

* AT 400 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 19 MILES WEST OF MURRELLS INLET...OR 9 MILES
  NORTHWEST OF GEORGETOWN...AND MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   MURRELLS INLET AROUND 425 PM...

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE 
WARNING. 

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...HEAVY RAIN AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

IF YOU OBSERVE SEVERE WEATHER OR WEATHER RELATED DAMAGE...REPORT IT
TO THE NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY THE
REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN WILMINGTON
NC.

LAT...LON 3354 7949 3337 7940 3344 7912 3355 7904
      3370 7919

$$

JAQ

1 follow-up statement

000 
WWUS52 KILM 082030
SVSILM

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
429 PM EDT SAT APR 8 2006

SCC043-082039-
/O.CAN.KILM.SV.W.0037.000000T0000Z-060408T2045Z/
GEORGETOWN SC-
429 PM EDT SAT APR 8 2006

...THE SEVERE THUNDERSTORM WARNING FOR GEORGETOWN COUNTY IS
CANCELLED...

AT 425 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE 
SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
GEORGETOWN COUNTY.  THEREFORE...THE WARNING HAS BEEN CANCELLED.

IF YOU OBSERVED SEVERE WEATHER OR WEATHER RELATED DAMAGE...REPORT IT
TO THE NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY THE
REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN WILMINGTON
NC.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING 
FOR NORTHEAST SOUTH CAROLINA.

LAT...LON 3354 7949 3337 7940 3344 7912 3355 7904
      3370 7919

$$

JAN

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 Wilmington, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 8, 10:24 AM EDT, 5 hours 39 minutes earlier.

Area forecast discussion, Apr 8, 10:24 AM EDT, 5 hours 39 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON NC
1024 AM EDT SAT APR 8 2006

.UPDATE /HIS AFTERNOON/...
NO UPDATE TO THE ZFP EXPECTED AT THIS TIME. MIXING SEEMS TO BE
JUST NOW GETTING UNDERWAY AS EVIDENT BY TEMPS STARTING TO RISE AND
WIND SPEEDS DOING THE SAME. MANUAL ANALYSIS INDICATED A SFC WAVE
IN C VA AND ALONG IN CENTRAL AL/MS. BOTH FEATURES WILL ATTEMPT TO
PLAY A ROLE IN THUNDERSTORM DEVEL THIS AFTERNOON. THE FORMER WILL
DRIVE THE FRONT INTO THE AREA FROM THE NORTH BY ABOUT 21Z. 12Z
NAM/RUC GUIDANCE SUGGESTING A LINE OF TSRA MAY ACCOMPANY IT. THE
LATTER WAVE MAY BRING OUR SC COUNTIES SOME TSRA AS IT MOVES INTO
THE SAVANNAH AREA. SHEAR PROFILES REMAIN FAVORABLE FOR ORGANIZED
CONVECTION AND THERMO PROFILES FAVOR HAIL TO BE THE MAIN THREAT
AND WIND DAMAGE RUNNING SECOND. BIGGEST LIMITING FACTOR STILL
SEEMS TO BE MOISTURE TRANSPORT AHEAD OF THE PRECIP. GUIDANCE STILL
MAY BE A FEW DEGREES OVERFORECASTED IN SFC DEWPOINTS. AS A RESULT
CAPE NOW SEEMS TO BE ON THE ORDER OF 800-1500...STILL SUFFICIENT
FOR STRONG STORMS GIVEN THE SHEAR. QPF AMOUNTS NOW SEEM TO BE A
BIT HIGHER THAN ANTICIPATED...ON THE ORDER OF A HALF INCH AREA
WIDE WITH HIGHER AMOUNTS FROM TSRA.

&&

.AVIATION...
MORE GUSTY SOUTHWEST WINDS TODAY AHEAD OF A COLD FRONT. GRADIENT
WILL PRODUCE WIND GUSTS NEAR 30 KTS BY LATE MORNING. STRONG OMEGA
AHEAD OF THE FRONT WILL PRODUCE SHOWERS AND THUNDERSTORMS...
BEGINNING AROUND FLO BY 1 PM...AND PUSHING TO THE COAST BY 19-22Z.
FRONT MOVES THROUGH AROUND 23-01Z WITH WINDS SHIFTING TO THE NORTH.
PRECIPITATION BECOMES STRATA-FORMED BEHIND THE FRONT...WITH LIGHT
RAIN AND DRIZZLE LOWERING CEILINGS TO IFR AFTER 04Z.

&&

.MARINE...
SIGNIFICANT WAVE HEIGHTS RANGE FROM AROUND 7 FT AT FRYING PAN SHOALS
TO 5 FT AT THE ONSLOW BAY BUOY 5 MILES OFF THE COAST. SOUTHWEST FLOW
HAS NOT BEEN AS STRONG AS THE MODELS HAVE INDICATED BY THIS TIME...
BUT WILL CONTINUE TO STRENGTHEN DURING THE DAY. NO SIGNIFICANT
CHANGES NEEDED TO THE CURRENT FORECAST.

&&

.ILM WATCHES/WARNINGS/ADVISORIES...
NC...NONE.
SC...NONE.
MARINE...SMALL CRAFT ADVISORY FOR AMZ250-252-254-256 UNTIL 5 PM SUNDAY.
&&

SHORT TERM...BACON
AVIATION...HDL
MARINE...PFAFF

Hazardous weather outlook, Apr 8, 1:45 PM EDT, 2 hours 18 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON NC
145 PM EDT SAT APR 8 2006

NCZ087-096-097-099>101-SCZ017-023-024-091745-
ROBESON-BLADEN-PENDER-COLUMBUS-BRUNSWICK-NEW HANOVER-MARLBORO-
DARLINGTON-DILLON-
145 PM EDT SAT APR 8 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST NORTH
CAROLINA AND NORTHEAST SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS AN INCREASED POTENTIAL FOR STRONG TO SEVERE THUNDERSTORM
ACTIVITY AHEAD OF AN APPROACHING STRONG COLD FRONT FROM THE WEST.
FROM MIDDAY THROUGH THIS EVENING WILL LIKELY BE THE TIME FRAME
WHEN THE WORST CONVECTION IS OBSERVED. LARGE HAIL AND DAMAGING
WIND GUSTS WILL BE THE MAIN SEVERE WEATHER THREATS...WITH AN
ISOLATED TORNADO ALSO POSSIBLE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

FOR LATE SUNDAY NIGHT INTO EARLY MONDAY MORNING...
MINIMUM TEMPERATURES COULD DROP TO THE MID AND UPPER 30S. IF WINDS
DECOUPLE AND ENOUGH LOW LEVEL MOISTURE REMAINS AVAILABLE...PATCHY TO
POSSIBLY SCATTERED FROST COULD BECOME A THREAT.

NO ADDITIONAL HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND EVENING.

SCZ032>034-039-046-091745-
FLORENCE-MARION-HORRY-WILLIAMSBURG-GEORGETOWN-
145 PM EDT SAT APR 8 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST SOUTH
CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A TORNADO WATCH IS IN EFFECT UNTIL 9 PM EDT. THUNDERSTORMS THIS
AFTERNOON MAY BECOME SEVERE...WITH LARGE HAIL...DAMAGING WIND
GUSTS...AND POSSIBLY AN ISOLATED TORNADO. THE FOCUS OF THE
STRONGEST THUNDERSTORM ACTIVITY WILL GRADUALLY SHIFT FROM FLORENCE
AND WILLIAMSBURG COUNTIES INITIALLY...INTO GEORGETOWN AND HORRY
COUNTIES MY MID TO LATE AFTERNOON.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

FOR LATE SUNDAY NIGHT INTO EARLY MONDAY MORNING... MINIMUM
TEMPERATURES COULD DROP TO THE MID AND UPPER 30S. IF WINDS
DECOUPLE AND ENOUGH LOW LEVEL MOISTURE REMAINS AVAILABLE...PATCHY
TO POSSIBLY SCATTERED FROST COULD BECOME A THREAT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON AND EVENING.

AMZ250-252-254-256-091745-
SURF CITY TO CAPE FEAR NC OUT 20 NM-
CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20 NM-
LITTLE RIVER INLET TO MURRELLS INLET SC OUT 20 NM-
MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT 20 NM-
145 PM EDT SAT APR 8 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE ADJACENT
COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A SMALL CRAFT ADVISORY IS IN EFFECT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A SMALL CRAFT ADVISORY CONTINUES INTO SUNDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

RAS

In the hours before

Local storm report, Apr 8, 3:04 PM EDT, 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
304 PM EDT SAT APR 08 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0240 PM     HAIL             6 S NESMITH             33.58N 79.52W
04/08/2006  E1.75 INCH       WILLIAMSBURG       SC   FIRE DEPT/RESCUE

            GOLFBALL HAIL NEAR BLOOMINGDALE...REPORTED BY 911
            DISPATCHERS

0250 PM     HAIL             4 S LORIS               34.00N 78.89W
04/08/2006  E0.88 INCH       HORRY              SC   LAW ENFORCEMENT

            NEAR DAISY COMMUNITY. REPORT RELAYED BY STATE WARNING
            POINT

0250 PM     TORNADO          4 S LORIS               34.00N 78.89W
04/08/2006                   HORRY              SC   LAW ENFORCEMENT

            TORNADO SIGHTING NEAR DAISY COMMUNITY...RELAYED BY
            WARNING POINT.

&&

RAS

Local storm report, Apr 8, 3:06 PM EDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
306 PM EDT SAT APR 08 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     HAIL             19 NNE ANDREWS          33.70N 79.44W
04/08/2006  E0.75 INCH       WILLIAMSBURG       SC   AIRPLANE PILOT

            2 S OUTLAND

&&

TRA

Local storm report, Apr 8, 3:15 PM EDT, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
315 PM EDT SAT APR 08 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0310 PM     HAIL             NAKINA                  34.13N 78.67W
04/08/2006  E1.00 INCH       COLUMBUS           NC   BROADCAST MEDIA

            PUBLIC REPORT RELAYED BY MEDIA.

&&

RAS

Local storm report, Apr 8, 3:45 PM EDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
345 PM EDT SAT APR 08 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 PM     HAIL             5 S TRIO                33.41N 79.72W
04/08/2006  E0.75 INCH       WILLIAMSBURG       SC   TRAINED SPOTTER

            PENNY SIZE HAIL NEAR SUTTONS.

&&

RAS

Local storm report, Apr 8, 3:58 PM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
358 PM EDT SAT APR 08 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0334 PM     HAIL             5 E TRIO                33.48N 79.63W
04/08/2006  E1.75 INCH       WILLIAMSBURG       SC   PUBLIC

            GOLFBALL SIZE HAIL NEAR EARLE.

&&

RAS

Local storm report, Apr 8, 4:03 PM EDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
403 PM EDT SAT APR 08 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     HAIL             LORIS                   34.06N 78.89W
04/08/2006  M1.00 INCH       HORRY              SC   FIRE DEPT/RESCUE

&&

TRA

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 8, 2:00 PM EDT	Severe Thunderstorm Warning	ILM	Williamsburg	45 min
Apr 8, 2:27 PM EDT	Severe Thunderstorm Warning	ILM	Horry	48 min
Apr 8, 2:42 PM EDT	Severe Thunderstorm Warning	ILM	Georgetown	33 min
Apr 8, 2:53 PM EDT	Tornado Warning	ILM	Horry	22 min
Apr 8, 3:22 PM EDT	Severe Thunderstorm Warning	ILM	Georgetown, Williamsburg	38 min
Apr 8, 3:36 PM EDT	Severe Thunderstorm Warning	ILM	Horry	24 min
Apr 8, 4:52 PM EDT	Special Marine Warning	ILM		23 min
Apr 8, 5:06 PM EDT	Severe Thunderstorm Warning	ILM	Georgetown	24 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2006 Every severe thunderstorm warning in 2006

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.