Alert archive / South Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Charleston, SC

March 25, 2012Berkeley County, South Carolina

NWS Charleston, SC issued this special weather statement at Mar 25, 2012, 1:49 PM EDT for Berkeley County, South Carolina. It was in force for 56 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
Mar 25, 2012, 1:49 PM EDT (17:49 UTC)
Expired
Mar 25, 2012, 2:45 PM EDT
In force
56 min
Issued by
NWS Charleston, SC

County Berkeley County, SC

The radar

The Columbia radar (KCAE), 107 km from the middle of the area, began a volume at 17:51 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 nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 5.8 hours before the alert went out and 59 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, Charleston AFB, SC at 12:00Z on 2012-03-25Temperature 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, Charleston AFB, SC at 12:00Z on 2012-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 square meters per square second.1939587897Sfc1 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
1330 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, SC wrote its last area forecast discussion before this special weather statement went out at Mar 25, 1:29 PM EDT, 20 minutes earlier.

Area forecast discussion, Mar 25, 1:29 PM EDT, 20 minutes before
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Hazardous weather outlook, Mar 25, 4:49 AM EDT, 9 hours before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
449 AM EDT SUN MAR 25 2012

AMZ352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040-042-047-048-
051-260900-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM...INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-JENKINS-SCREVEN-CANDLER-BULLOCH-EFFINGHAM-TATTNALL-EVANS-
INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-LONG-
INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH-
ALLENDALE-HAMPTON-INLAND JASPER-BEAUFORT-COASTAL JASPER-
449 AM EDT SUN MAR 25 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL
WATERS...SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

AMZ330-350-SCZ043>045-049-050-052-260900-
CHARLESTON HARBOR-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
INLAND COLLETON-DORCHESTER-INLAND BERKELEY-COASTAL COLLETON-
CHARLESTON-TIDAL BERKELEY-
449 AM EDT SUN MAR 25 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND
SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORMS...AN UPPER LEVEL DISTURBANCE WILL CROSS THE
CAROLINAS TODAY. A FEW THUNDERSTORMS ARE EXPECTED ACROSS THE AREA
THIS AFTERNOON WHICH MAY PRODUCE SMALL HAIL. THERE IS A RELATIVELY
SMALL RISK THAT ISOLATED THUNDERSTORMS BECOME SEVERE WITH LARGE
HAIL AND LOCALIZED DAMAGING WIND GUSTS. THE EXPECTED TIME FRAME
FOR THUNDERSTORMS TODAY WILL BE FROM 1 PM TO 8 PM.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS UNLIKELY TODAY.

In the hours before

Local storm report, Mar 25, 9:19 AM EDT, 4 hours 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
919 AM EDT SUN MAR 25 2012

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

0941 PM     TSTM WND DMG     4 NNE STATESBORO        32.50N  81.76W
03/24/2012                   BULLOCH            GA   UTILITY COMPANY

            ONE TREE DOWN ALONG STILLWATER DRIVE.

0941 PM     TSTM WND DMG     4 ESE MIDDLEGROUND      32.52N  81.76W
03/24/2012                   BULLOCH            GA   UTILITY COMPANY

            A COUPLE OF TREES REPORTED DOWN ALONG CLITO ROAD.

&&

EVENT NUMBER CHS1200073
EVENT NUMBER CHS1200074

JHP
Local storm report, Mar 25, 9:53 AM EDT, 3 hours 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
953 AM EDT SUN MAR 25 2012

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

0205 PM     TSTM WND DMG     3 WNW JASPER            32.37N  80.99W
03/24/2012                   JASPER             SC   911 CALL CENTER

            ONE TREE REPORTED DOWN ALONG INTERSTATE 95 NEAR MILE
            MARKER 10. TIME ESTIMATED BY RADAR.

&&

EVENT NUMBER CHS1200075

JHP
Special weather statement, Mar 25, 1:49 PM EDT, 0 minutes before
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The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 24, 8:51 PM EDTSpecial Weather StatementCHSCandler24 min
Mar 24, 9:16 PM EDTSpecial Weather StatementCHSBulloch, Candler, Screven29 min
Mar 24, 9:37 PM EDTSevere Thunderstorm WarningCHSBulloch, Candler, Effingham, Evans, Screven53 min
Mar 24, 10:03 PM EDTSevere Thunderstorm WarningCHSEffingham, Screven57 min
Mar 24, 10:11 PM EDTSpecial Weather StatementCHSCandler34 min
Mar 25, 12:13 AM EDTSpecial Weather StatementCHSBryan32 min
Mar 25, 1:31 AM EDTSpecial Marine WarningCHS89 min
Mar 25, 12:39 PM EDTSmall Craft AdvisoryCHS5 hr
Mar 24, 10:30 PM EDTSpecial Weather StatementCHSOrangeburg30 min
Mar 24, 10:53 PM EDTSpecial Weather StatementCHSDorchester22 min
Mar 24, 11:19 PM EDTSpecial Weather StatementCHSBerkeley26 min
Mar 25, 4:08 PM EDTSpecial Weather StatementCHSBerkeley22 min

Nearby

Special Weather Statements in South Carolina, 2012Every special weather statement in 2012

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.