Alert archive / South Carolina / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 102, NWS Wilmington, NC

May 26, 2006Williamsburg County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at May 26, 2006, 3:13 PM EDT for Williamsburg County, South Carolina. It was in force for 62 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
May 26, 2006, 3:13 PM EDT (19:13 UTC)
Expired
May 26, 2006, 4:15 PM EDT
In force
62 min
Issued by
NWS Wilmington, NC
Area
Counties, with a storm outline in the text

County Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 127 km from the middle of the area, began a volume at 19:15 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.

IssuedProductOfficeLasted
May 26, 2:12 PM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.2 hours before the alert went out and 274 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 2006-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2006-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1378 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 May 26, 10:30 AM EDT, 4 hours 43 minutes earlier.

Area forecast discussion, May 26, 10:30 AM EDT, 4 hours 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON NC
1030 AM EDT FRI MAY 26 2006

.UPDATE (THIS AFTERNOON)...
STILL LOOKING WELL ON TRACK FOR STRONG TO SEVERE CONVECTION THIS
AFTERNOON.  MODERATE TO STRONG INSTABILITY IN PLACE...3000 J/KG CAPE
AND -9 LI IF MODEL FORECAST SOUNDINGS ARE TO BE BELIEVED. UPPER TROF
AXIS EXTENDING SOUTH FROM THE GREAT LAKES WILL APPROACH THIS
AFTERNOON...PROVIDING RESPECTABLE DYNAMIC SUPPORT.

SPS ALREADY OUT TO HIGHLIGHT THE SVR WX RISK...AND WILL JUST BE
FRESHENED UP LATER THIS MORNING.  ZFP UPDATE WILL BE MAINLY TO CLEAN
UP THE WORDING AND REMOVE MENTION OF LATE MORNING PRECIP.  WITH KLTX
VWP ALSO SHOWING 25-30 KT AT 2000 FEET...WILL ALSO BEEF UP THE WIND
FORECAST.

&&

.AVIATION...
ANOTHER ROUND OF CONVECTION IN STORE FOR THE CWA...PROBABLY STARTING
AROUND 20Z OVER FLO...MOVING TO THE COASTAL TERMINALS AROUND 22-23Z.
MARINE LAYER MAY KEEP STRONGEST CONVECTION INLAND THROUGH 00Z. GOOD
LOW LEVEL JET WILL HAVE SOUTHWEST WINDS GUSTING TO 25+ KNOTS BY
EARLY AFTERNOON. MOST OF THE THUNDERSTORM ACTIVITY WILL BE OVER BY
02-03Z AS STRONGEST OMEGA PUSHES OFF THE COAST. PROBABLY SEE A MID
CLOUD CEILING BEHIND THE STORMS. MID LEVEL RHS DROP OFF
CONSIDERABLY BY MID DAY SATURDAY...WITH A WEST SOUTHWEST WIND AROUND
10 KTS.

&&

.MARINE...
SOUTH TO SOUTHWEST FETCH WILL CONTINUE ACROSS THE COASTAL WATERS
TODAY. SEAS ARE AROUND 5 FT AT FRYING PAN...4-5 FT AT THE CORMP/USMC
ONSLOW BAY BUOY AND AROUND 3 FT AT THE USC WAVE GAUGE AT SPRING MAID
PIER. ALTHOUGH WINDS/SEAS ARE BELOW SMALL CRAFT CRITERIA AT THE
MOMENT THE WAVE STEEPNESS IS STEEP GIVEN THE AFOREMENTIONED HEIGHTS
WITH DOMINANT PERIODS GENERALLY AROUND 6 SECONDS OR LESS. IN
ADDITION THE FLOW WILL STRENGTHEN AGAIN DURING THE DAY WHICH
SUPPORTS KEEPING THE SMALL CRAFT ADVISORY IN PLACE FOR ALL MARINE
ZONES.

&&

.SHORT TERM /TODAY THROUGH SATURDAY NIGHT/...
DYNAMICS...BOTH SFC AND ALOFT...ASSOCIATED WITH THE CLOSED LOW
CURRENTLY MOVING TO THE MID-ATLANTIC STATES...WILL BECOME THE MAIN
INFLUENCES ACROSS THE ILM CWA THE NEXT 24-36 HOURS. WITH TODAYS
INSOLATION AND MID TO UPPER 60S DEW POINTS...THE ATM WILL FURTHER
DESTABILIZE AND BECOME PRIMED AND READY WHEN DYNAMICS INDUCED BY THE
CLOSED LOW BEGIN INTERACTING. AS A RESULT...THE ILM CWA SHULD
OBSERVE STRONG TO POSSIBLY SEVERE CONVECTION LATER THIS AFTERNOON
AND DURING A GOOD PORTION OF THE OVERNIGHT. WILL REFLECT THE SEVERE
POTENTIAL WITHIN ISSUANCES OF THE HWO AND SPS.

THE UPPER CLOSED LOW OPENS UP TONIGHT AND SATURDAY...WITH PART OF IT
BEING SHEARED AND ABSORBED IN THE MAIN WESTERLIES AS AN OPEN
WAVE...AND THE SOUTHERN PORTION SLOWLY MIGRATING TO OFF THE CAROLINA
COASTS SATURDAY NIGHT AND INTO THE EXTENDED. ITS DURING THIS LATTER
TIME WHEN THE TRANSFORMATION TO A CUTOFF LOW UNDER A RATHER LARGE
AMPLITUDE RIDGE OCCURS. DURING THE DAY SATURDAY...THE SFC TROF/COLD
FRONT AND 5H TROF LINE REMAIN ACROSS THE AREA...AND LIKELY WILL BE
JUST ENUF INSTABILITY AND MOISTURE TO CONTINUE A LOW POP. DURING
SATURDAY NIGHT...THE SFC AND MID-LEVEL TROF ROTATE SOUTH AND EAST OF
THE AREA...ENDING THE THREAT FOR PCPN WITH A CLEARING TREND ENSUING.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
UPPER AND SFC RIDGE TO DOMINATE THE AREA WEATHER SUNDAY THROUGH
WEDNESDAY. ONLY FLY IN THE OINTMENT WILL BE THE CUTOFF LOW
MEANDERING OFF THE CAROLINA COASTS...AND WHETHER IT SHOULD THROW
BACK ANY CLOUDINESS AND/OR PCPN. MODELS ARE IN DECISIVE AS A GROUP
CONCERNING THE CLOUDINESS FROM THIS LOW....BUT THEY DO KEEP THE ILM
CWA PCPN-LESS. FOR NOW HAVE INCLUDED SLITELY MORE CLOUDS ALONG
COASTAL COUNTIES.

FOR THURSDAY...THE UPPER RIDGE SLOWLY BREAKS DOWN WITH WX FEATURES
FINALLY PUSHING INTO THE AREA FROM THE WEST. THIS WILL GIVE RISE TO
CONVECTION AND ASSOCIATED CLOUDINESS AND IS REFLECTED IN THE
OFFICIAL FCST.

&&

.ILM WATCHES/WARNINGS/ADVISORIES...
NC...NONE.
SC...NONE.
MARINE...SMALL CRAFT ADVISORY FOR AMZ250-252-254-256.

&&

UPDATE...RAS
AVIATION...DL
MARINE...SRP
SHORT TERM/LONG TERM...HOEHLER
Hazardous weather outlook, May 26, 2:30 PM EDT, 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON NC
230 PM EDT FRI MAY 26 2006

NCZ087-096-097-099>101-SCZ017-023-024-032>034-039-046-271000-
ROBESON-BLADEN-PENDER-COLUMBUS-BRUNSWICK-NEW
HANOVER-MARLBORO-DARLINGTON-DILLON-FLORENCE-MARION-HORRY-WILLIAMSBURG
-GEORGETOWN
230 PM EDT FRI MAY 26 2006

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

.DAY ONE...TODAY AND TONIGHT
SEVERE THUNDERSTORM ARE POSSIBLE THIS AFTERNOON. A SEVERE
THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM THIS EVENING.

THE SEVERE STORMS WILL HAVE THE POTENTIAL TO PRODUCE HAIL THE SIZE
OF PENNIES OR LARGER...AND DAMAGING WIND GUSTS IN EXCESS OF 60
MPH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND MUCH
OF TONIGHT.

AMZ250-252-254-256-271000-
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-
230 PM EDT FRI MAY 26 2006

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

.DAY ONE...TODAY AND TONIGHT

SMALL CRAFT ADVISORY CONDITIONS RE-DEVELOPING BY LATE THIS
AFTERNOON AND PERSISTING THROUGH MIDDAY SATURDAY.

IN ADDITION...SEVERE THUNDERSTORMS WILL LIKELY AFFECT THE COASTAL
WATERS THIS AFTERNOON AND EVENING.

THE SEVERE STORMS WILL HAVE THE POTENTIAL TO PRODUCE HAIL THE SIZE
OF PENNIES OR LARGER...AND DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

15

In the hours before

Special weather statement, May 26, 2:07 PM EDT, 1 hour 6 minutes before
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Special weather statement, May 26, 2:36 PM EDT, 37 minutes before
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Local storm report, May 26, 2:48 PM EDT, 25 minutes before
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Local storm report, May 26, 2:52 PM EDT, 21 minutes before
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Local storm report, May 26, 3:06 PM EDT, 7 minutes before
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Local storm report, May 26, 3:11 PM EDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
311 PM EDT FRI MAY 26 2006

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

0307 PM     HAIL             LAMAR                   34.17N 80.07W
05/26/2006  E1.00 INCH       DARLINGTON         SC   BROADCAST MEDIA

&&

RAS

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 2:45 PM EDTSevere Thunderstorm WarningILMDarlington, Florence30 min
May 26, 3:15 PM EDTSevere Thunderstorm WarningILMFlorence60 min
May 26, 3:22 PM EDTSevere Thunderstorm WarningILMMarion53 min
May 26, 3:56 PM EDTSevere Thunderstorm WarningILMHorry64 min
May 26, 4:02 PM EDTSevere Thunderstorm WarningILMDillon27 min
May 26, 4:15 PM EDTSevere Thunderstorm WarningILMWilliamsburg60 min
May 26, 5:03 PM EDTSevere Thunderstorm WarningILMHorry27 min
May 26, 5:13 PM EDTSpecial Marine WarningILM62 min
May 26, 5:31 PM EDTSpecial Marine WarningILM59 min
May 26, 5:34 PM EDTSevere Thunderstorm WarningILMHorry26 min
May 26, 5:48 PM EDTSevere Thunderstorm WarningILMGeorgetown28 min
May 26, 6:03 PM EDTSpecial Marine WarningILM42 min
May 26, 7:43 PM EDTSevere Thunderstorm WarningILMMarlboro47 min
May 26, 4:04 PM EDTSevere Thunderstorm WarningILMRobeson46 min
May 26, 4:12 PM EDTSevere Thunderstorm WarningILMBladen63 min
May 26, 4:40 PM EDTSevere Thunderstorm WarningILMColumbus65 min
May 26, 5:11 PM EDTSevere Thunderstorm WarningILMPender64 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2006Every 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; radar from the NEXRAD Level II archive.