Alert archive / South Carolina / Special Weather Statements in 2010

Special Weather Statement, NWS Charleston, SC

August 6, 2010Berkeley County, South Carolina

NWS Charleston, SC issued this special weather statement at Aug 6, 2010, 3:13 PM EDT for Berkeley 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 outline as issued.

The facts

Issued: Aug 6, 2010, 3:13 PM EDT (19:13 UTC)
Expired: Aug 6, 2010, 4:15 PM EDT
In force: 62 min
Issued by: NWS Charleston, SC

County Berkeley County, SC

The radar

The Charleston,SC radar (KCLX), 139 km from the middle of the area, began a volume at 19:16 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, 7.2 hours before the alert went out and 42 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: 2833 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 675 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

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 Aug 6, 2:03 PM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, Aug 6, 2:03 PM EDT, 1 hour 10 minutes before

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Hazardous weather outlook, Aug 6, 1:37 PM EDT, 1 hour 36 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CHARLESTON SC
137 PM EDT FRI AUG 6 2010

GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-071000-
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 COLLETON-DORCHESTER-INLAND BERKELEY-
INLAND JASPER-BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
TIDAL BERKELEY-
137 PM EDT FRI AUG 6 2010

...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 579 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   HEAT ADVISORY.
   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

EXCESSIVE HEAT...THE COMBINATION OF TEMPERATURES IN THE MID TO
UPPER 90S AND MODERATE LEVELS OF HUMIDITY WILL LIKELY PRODUCE HEAT
INDICES OF 105 DEGREES OR GREATER DURING THE AFTERNOON AND EVENING
HOURS INTO NEXT WEEK. ADDITIONAL HEAT ADVISORIES WILL LIKELY BE
NEEDED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD BE PREPARED
FOR POSSIBLE ACTIVATION AFTER 2 PM.

AMZ330-350-352-354-071000-
CHARLESTON HARBOR-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
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-
137 PM EDT FRI AUG 6 2010

...SEVERE THUNDERSTORM WATCH 579 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD BE PREPARED
FOR POSSIBLE ACTIVATION AFTER 2 PM.

AMZ374-071000-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
137 PM EDT FRI AUG 6 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SEVERE THUNDERSTORMS...AHEAD OF AN APPROACHING COLD FRONT...THUNDERSTORMS
WILL DEVELOP ACROSS SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA
TODAY...ESPECIALLY THIS AFTERNOON INTO THIS EVENING. A FEW THUNDERSTORMS
COULD BECOME SEVERE WITH DAMAGING WIND GUSTS EXCEEDING 60 MPH. ANY
THUNDERSTORMS COULD ALSO PRODUCE TORRENTIAL RAINFALL...LOCALIZED FLOODING
AND FREQUENT CLOUD TO GROUND LIGHTNING. THE GREATEST THREAT FOR SEVERE
WEATHER WILL OCCUR BETWEEN 2 PM AND 8 PM TODAY...ALTHOUGH SEVERE WEATHER
AND LOCALLY EXCESSIVE RAINFALL COULD PERSIST FOR A FEW MORE HOURS
INTO EARLY TONIGHT.

CHECK WITH NOAA WEATHER RADIO ALL HAZARDS OR OTHER MEDIA OUTLETS
FOR UPDATES TODAY. IF YOU PLAN TO BOAT ON AREAS WATERS...REMAIN
ALERT FOR THE RAPID ONSET OF HAZARDOUS WEATHER TODAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD BE PREPARED
FOR POSSIBLE ACTIVATION AFTER 2 PM.

In the hours before

Special weather statement, Aug 6, 2:29 PM EDT, 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
229 PM EDT FRI AUG 6 2010

SCZ045-052-061930-
INLAND BERKELEY-TIDAL BERKELEY-
229 PM EDT FRI AUG 6 2010

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BERKELEY COUNTY
THROUGH 330 PM EDT...

AT 224 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR CHICORA...MOVING EAST AT 10 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BONNEAU BEACH...BONNEAU...CROSS...MONCKS CORNER...NORTHERN LAKE
MOULTRIE...PINOPOLIS...SAINT STEPHEN AND SOUTHERN LAKE MOULTRIE...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
DIME SIZE HAIL...
FREQUENT CLOUD TO GROUND LIGHTNING...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. IF
OUTDOORS...STAY AWAY FROM ISOLATED TALL OBJECTS. IF INDOORS...STAY
AWAY FROM WINDOWS AND DOORS. AVOID USING PLUMBING AND ELECTRICAL
APPLIANCES UNLESS IT IS AN EMERGENCY.

THESE STORMS ARE EXPECTED TO IMPACT LAKE MOULTRIE. BOATERS SHOULD
SEEK SAFE HARBOR IMMEDIATELY. IF CAUGHT ON THE OPEN WATERS...STAY AS
LOW AS POSSIBLE AND WEAR A PERSONAL FLOATATION DEVICE. SWIMMERS
SHOULD GET OUT OF THE WATER AND INTO A STURDY BUILDING. REMEMBER...IF
YOU CAN HEAR THUNDER YOU ARE AT RISK OF BEING STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT. THUNDERSTORMS CAN
PRODUCE LARGE HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES
SUDDENLY...SOMETIMES WITH LITTLE OR NO WARNING. BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS AND BE READY TO ACT QUICKLY IF SEVERE
WEATHER IS OBSERVED OR A WARNING IS ISSUED.

&&

LAT...LON 3304 7995 3315 8027 3336 8021 3342 7985
      3340 7983 3338 7978
TIME...MOT...LOC 1829Z 276DEG 10KT 3326 8013

Special weather statement, Aug 6, 3:13 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 4:30 PM EDT	Heat Advisory	CHS	Bulloch, Candler, Effingham, Evans, Jenkins, Long and 2 more	23 hr
Aug 6, 6:10 PM EDT	Special Weather Statement	CHS	Effingham	35 min
Aug 6, 6:56 PM EDT	Special Marine Warning	CHS		104 min
Aug 6, 7:06 PM EDT	Severe Thunderstorm Warning	CHS	Screven	54 min
Aug 6, 7:14 PM EDT	Special Marine Warning	CHS		61 min
Aug 6, 7:38 PM EDT	Severe Thunderstorm Warning	CHS	Jenkins, Screven	52 min
Aug 6, 7:02 AM EDT	Areal Flood Advisory	CHS	Charleston	42 min
Aug 6, 2:29 PM EDT	Special Weather Statement	CHS	Berkeley	61 min
Aug 6, 4:45 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston	60 min
Aug 6, 5:32 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Dorchester	58 min
Aug 6, 5:55 PM EDT	Flash Flood Warning	CHS	Berkeley, Charleston	86 min
Aug 6, 6:11 PM EDT	Special Weather Statement	CHS	Charleston	79 min
Aug 6, 6:28 PM EDT	Special Weather Statement	CHS	Dorchester	77 min
Aug 6, 7:23 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Dorchester	37 min
Aug 6, 7:48 PM EDT	Severe Thunderstorm Warning	CHS	Allendale, Berkeley, Colleton, Dorchester, Hampton	57 min

Nearby

Special Weather Statements in South Carolina, 2010 Every special weather statement 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.