Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 158, NWS Charleston, SC

July 5, 2011Berkeley County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Jul 5, 2011, 5:34 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: Jul 5, 2011, 5:34 PM EDT (21:34 UTC)
Expired: Jul 5, 2011, 6:30 PM EDT
In force: 56 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon

County Berkeley County, SC

The radar

The Columbia radar (KCAE), 120 km from the middle of the area, began a volume at 21:37 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.

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 nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 9.6 hours before the alert went out and 53 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: 1065 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 799 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: -2 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.

123 
WUUS52 KCHS 052134
SVRCHS
SCC015-052230-
/O.NEW.KCHS.SV.W.0158.110705T2134Z-110705T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
534 PM EDT TUE JUL 5 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BERKELEY COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 630 PM EDT

* AT 533 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...NEAR CROSS...MOVING NORTHEAST AT 5 MPH.

  PREPARE NOW FOR THE FOLLOWING HAZARDS...
  DAMAGING WINDS IN EXCESS OF 60 MPH...
  HAIL UP TO QUARTER SIZE...
  TORRENTIAL RAIN WHICH MAY PRODUCE LOCALIZED FLOODING...

* SOME LOCATIONS IN THE WARNING INCLUDE...
  CROSS...NORTHERN LAKE MOULTRIE...EADYTOWN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT HAIL...DOWNED TREES...LIMBS...AND POWER LINES DIRECTLY TO THE
CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024.

&&

LAT...LON 3315 8019 3326 8032 3330 8026 3344 8023
      3346 8015 3348 8016 3350 8013 3351 8008
      3350 7996 3344 7986 3341 7985 3338 7980
      3338 7979 3333 7975 3331 7968
TIME...MOT...LOC 2135Z 244DEG 5KT 3330 8020

$$

4 follow-up statements

480 
WWUS52 KCHS 052138
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
538 PM EDT TUE JUL 5 2011

SCC015-052230-
/O.CON.KCHS.SV.W.0158.000000T0000Z-110705T2230Z/
BERKELEY SC-
538 PM EDT TUE JUL 5 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHERN BERKELEY COUNTY...

AT 533 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR MOOREFIELD...OR ABOUT 13 MILES NORTHWEST OF MONCKS
CORNER...MOVING NORTHEAST AT 5 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BONNEAU...
BONNEAU BEACH...CROSS...EADYTOWN...EASTERN LAKE MARION...NORTHERN
LAKE MOULTRIE...PINOPOLIS...SAINT STEPHEN AND SOUTHERN LAKE MOULTRIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF ON LAKE MOULTRIE...PREPARE FOR THE RAPID ONSET OF DANGEROUS
THUNDERSTORM CONDITIONS WHICH CAN RAPIDLY CAPSIZE AND SINK A BOAT.
LIGHTNING WILL ALSO POSE A HAZARD TO ANYONE ON THE LAKE. REMEMBER...
LIGHTNING CAN STRIKE 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU
CAN HEAR THUNDER...YOU ARE WITHIN STRIKING DISTANCE. GET OUT OF THE
WATER AND MOVE INDOORS OR INSIDE A VEHICLE.

&&

LAT...LON 3315 8019 3326 8032 3330 8026 3344 8023
      3346 8015 3348 8016 3350 8013 3351 8008
      3350 7996 3344 7986 3341 7985 3338 7980
      3338 7979 3333 7975 3331 7968
TIME...MOT...LOC 2138Z 244DEG 5KT 3330 8020

$$

827 
WWUS52 KCHS 052152
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
552 PM EDT TUE JUL 5 2011

SCC015-052230-
/O.CON.KCHS.SV.W.0158.000000T0000Z-110705T2230Z/
BERKELEY SC-
552 PM EDT TUE JUL 5 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHERN BERKELEY COUNTY...

AT 550 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR CROSS...OR ABOUT 14 MILES NORTHWEST OF MONCKS CORNER...
MOVING NORTHEAST AT 5 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BONNEAU...
BONNEAU BEACH...CROSS...EADYTOWN...EASTERN LAKE MARION...NORTHERN
LAKE MOULTRIE...PINOPOLIS...SAINT STEPHEN AND SOUTHERN LAKE MOULTRIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS THUNDERSTORM IS CAPABLE OF PRODUCING VERY HEAVY RAIN...WHICH MAY
FLOOD ROADS...DITCHES AND LOW-LYING AREAS. AVOID FLOOD PRONE AREAS
AND DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE ROAD.

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. MOVE INDOORS
IMMEDIATELY. IF THERE IS NO SAFE SHELTER AVAILABLE...STAY AWAY FROM
ISOLATED HIGH OBJECTS AND BODIES OF WATER. IF YOU CAN HEAR THUNDER...
YOU ARE WITHIN STRIKING DISTANCE.

&&

LAT...LON 3315 8019 3326 8032 3330 8026 3344 8023
      3346 8015 3348 8016 3350 8013 3351 8008
      3350 7996 3344 7986 3341 7985 3338 7980
      3338 7979 3333 7975 3331 7968
TIME...MOT...LOC 2152Z 223DEG 5KT 3334 8017

$$

507 
WWUS52 KCHS 052209
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
609 PM EDT TUE JUL 5 2011

SCC015-052230-
/O.CON.KCHS.SV.W.0158.000000T0000Z-110705T2230Z/
BERKELEY SC-
609 PM EDT TUE JUL 5 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHWESTERN BERKELEY COUNTY...

AT 606 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR PRIOLEAU...OR ABOUT 18 MILES NORTHWEST OF MONCKS
CORNER...MOVING NORTHEAST AT 5 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BONNEAU
BEACH...CROSS...EADYTOWN...EASTERN LAKE MARION AND NORTHERN LAKE
MOULTRIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. MOVE INDOORS
IMMEDIATELY. IF THERE IS NO SAFE SHELTER AVAILABLE...STAY AWAY FROM
ISOLATED HIGH OBJECTS AND BODIES OF WATER. IF YOU CAN HEAR THUNDER...
YOU ARE WITHIN STRIKING DISTANCE.

&&

LAT...LON 3344 7994 3334 7993 3326 8012 3330 8026
      3344 8023 3346 8015 3348 8016 3350 8013
      3351 8008 3350 7996 3350 7995
TIME...MOT...LOC 2209Z 223DEG 5KT 3340 8020

$$

665 
WWUS52 KCHS 052222
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
622 PM EDT TUE JUL 5 2011

SCC015-052232-
/O.EXP.KCHS.SV.W.0158.000000T0000Z-110705T2230Z/
BERKELEY SC-
622 PM EDT TUE JUL 5 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BERKELEY COUNTY
WILL EXPIRE AT 630 PM EDT...

AT 618 PM EDT...RADAR INDICATED THAT THE SEVERE THUNDERSTORM WHICH
PROMPTED THE WARNING HAD MOVED OUT OF THE WARNED AREA...THUS THE
SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE.

TO REPORT HAIL OR WIND DAMAGE...CONTACT THE CHARLESTON NATIONAL
WEATHER SERVICE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV. REPORTS CAN ALSO BE SENT THROUGH TWITTER USING
#WXREPORT.

LAT...LON 3344 7994 3334 7993 3326 8012 3330 8026
      3344 8023 3346 8015 3348 8016 3350 8013
      3351 8008 3350 7996 3350 7995
TIME...MOT...LOC 2222Z 223DEG 5KT 3341 8019

$$

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 Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 5, 3:32 PM EDT, 2 hours 2 minutes earlier.

Area forecast discussion, Jul 5, 3:32 PM EDT, 2 hours 2 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
332 PM EDT TUE JUL 5 2011

.SYNOPSIS...
ATLANTIC HIGH PRESSURE WILL GENERALLY PREVAIL ACROSS THE AREA THIS
WEEK. A WEAKENING COLD FRONT COULD ADVANCE INTO THE REGION THIS WEEKEND
AND STALL BY EARLY NEXT WEEK.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
ISOLATED TO SCATTERED CONVECTION WILL CONTINUE INTO THE
EVENING...THEN LIKELY DIMINISH OVERNIGHT. A FEW STORMS COULD
BECOME STRONG TO SEVERE WITH DAMAGING WINDS THE MAIN HAZARD. WILL
NEED TO KEEP ISOLATED SHOWERS AND THUNDERSTORMS IN THE FORECAST
MUCH OF THE NIGHT HOWEVER GIVEN THE CONTINUATION OF DEEP MOISTURE
AND GENERAL ASCENT TO THE EAST OF THE UPPER LOW OVER THE GULF OF
MEXICO. LOWS GENERALLY IN THE LOWER TO MID 70S AWAY FROM THE
COAST.

SMOKE...AN 800-900 ACRE WILDFIRE NORTH OF WALTHOURVILLE IN
LIBERTY COUNTY AS WELL AS WELL AS THE NEARLY 300000 ACRE WILDFIRE
IN THE OKEFENOKEE SWAMP CONTINUE TO BURN. HAVE SEEN VISIBILITIES
IMPROVE LATE THIS AFTERNOON DUE TO IMPROVED VERTICAL MIXING AND
DISPERSION. HOWEVER...SMOKE COULD RETURN THIS EVENING AS WINDS
BECOME ONSHORE AGAIN WITH THE SEA BREEZE. A MORE STABLE MARINE
ENVIRONMENT BEHIND THE SEA BREEZE NEAR THE COAST ALONG WITH NORMAL
NIGHTTIME STABILIZATION COULD YIELD TO LOWERING VISIBILITIES
OVERNIGHT...ESPECIALLY ACROSS SOUTHEAST GEORGIA CLOSER TO THE
FIRES. WILL CONTINUE TO HIGHLIGHT IN A SPECIAL WEATHER
STATEMENT...ALTHOUGH DENSE SMOKE ADVISORIES COULD NOT BE RULED OUT
IF VISIBILITIES OF ONE QUARTER MILE OR LESS OCCUR OR BECOME
EXPECTED.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH FRIDAY/...
A DEEP LAYER ATLANTIC RIDGE IS EXPECTED TO HOLD ON THROUGH THE
PERIOD. MID-LEVELS WILL REMAIN QUITE WARM /500 MB TEMPS WARMER THAN
-6C/ DURING THIS TIME BUT LOW-LEVEL THETA-E WILL ALLOW FOR SCATTERED
DIURNAL SHOWERS/STORMS EACH DAY. SOME DRY AIR ALOFT MAY ALLOW FOR
ISOLATED SEVERE STORMS WITH DAMAGING WIND GUSTS THE PRIMARY HAZARD.

THE ONLY POTENTIAL CAVEAT IS A TROPICAL WAVE IN THE BAHAMAS THAT
COULD MOVE UP THE SOUTHEAST COAST THU-FRI. THE GUIDANCE IS SPLIT ON
THIS SYSTEM BUT AT A MINIMUM WE COULD SEE SOME UPPER VORTICITY
MOVING UP THE COAST LATE IN THE WEEK. UNTIL THERE IS MORE MODEL
CONTINUITY WE ARE STICKING WITH SCATTERED SHOWERS/STORMS EACH DAY
WITH HIGHS IN THE LOWER TO MIDDLE 90S AND LOWS IN THE 70S.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
THE DEEP LAYER ATLANTIC RIDGE HOLDS AND EVEN STRENGTHENS A BIT
THROUGH SUNDAY. THEN A STRONGER RIDGE OVER THE CENTRAL U.S. BUILDS
AND STRENGTHENS EASTWARD BY MONDAY AND TUESDAY. THIS MAKES IT
DIFFICULT TO BELIEVE THAT A SURFACE FRONT WILL BE ABLE TO MAKE IT
VERY FAR SOUTH TOWARD THE AREA BY LATER SATURDAY AND SUNDAY. THINK
ANY FRONT THAT MAKES IT DOWN WILL BE WEAK AND LIKELY STALL NEAR OR
SLIGHTLY NORTH OF THE REGION BY THE WEEKEND. MODELS KEEP A WEAK
TROUGH FEATURE/FRONT THROUGH EARLY NEXT WEEK...WHICH MAY HELP TO BE
A FOCUS FOR HIGHER RAINFALL CHANCES. ANOTHER FACTOR THAT COULD PLAY
INTO THE PRECIP FORECAST FOR THIS PERIOD IS HOW MUCH IF ANY TROPICAL
MOISTURE REACHES THE AREA. GIVEN THE MUCH WEAKER AND FURTHER SOUTH
SOLUTION OF THE TROPICAL WAVE MENTIONED ABOVE...THE IMPACT FOR ANY
MOISTURE WOULD BE RATHER LOW. THEREFORE...HAVE KEPT LOW END CHANCE
POPS THROUGH THIS PERIOD...MAINLY FOR THE AFTERNOON. THE TWO MAIN
FEATURES TO FOCUS CONVECTION WOULD LIKELY BE THE STALLED FRONT
OVER OR JUST NORTH OF THE REGION AND THE AFTERNOON SEA BREEZE.
FINALLY...KEPT TEMPS NEAR NORMAL THROUGH THE PERIOD.

&&

.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
SMOKE FROM THE GA WILDFIRES WILL LIKELY IMPACT KSAV THROUGH
MOST...IF NOT ALL...OF THE TAF PERIOD. HOWEVER...CONFIDENCE IN
VSBY/CIG RESTRICTIONS IS LOW BEYOND THIS AFTERNOON SO HAVE KEPT
CONDS VFR AFTER 21Z. ALTHOUGH SOME IMPROVEMENT IS EXPECTED EARLY
THIS AFTERNOON AS VERTICAL MIXING INCREASES AND THE BULK OF THE
SMOKE MOVES OFFSHORE...VSBYS COULD DROP AGAIN LATER THIS
AFTERNOON AND EVENING IF SMOKE GETS PUSHED BACK ONSHORE WITH THE
SEA BREEZE.

ISOLATED TO SCATTERED CONVECTION WILL IMPACT AREAS MAINLY WEST OF THE
TERMINALS DURING THE MID AFTERNOON INTO TONIGHT. WITH LIMITED
COVERAGE/CHANCES...WILL STICK WITH CB/S TO COVER FOR NOW INTO
EARLY TONIGHT.

IN WAKE OF THE SEA BREEZE LATE TODAY SOUTHERLY WINDS WILL INCREASE
TO 10-15 KT...WITH SOME HIGHER GUSTS AT KCHS WHERE THE PRESSURE
GRADIENT IS A LITTLE TIGHTER.

EXTENDED AVIATION OUTLOOK...MAINLY VFR...PERHAPS INTERRUPTED BY
BRIEF MVFR OR LOWER CONDITIONS IN DIURNAL THUNDERSTORMS THROUGH
THE PERIOD.

&&

.MARINE...
TONIGHT...SUB-TROPICAL HIGH PRESSURE WILL AGAIN PREVAIL ACROSS
THE LOCAL WATERS. S WINDS WILL SURGE THIS EVENING AND THE FIRST
HALF OF THE NIGHT DUE TO THE SEA BREEZE AND INCREASING LOW-LEVEL
JET BEFORE DIMINISHING TOWARD DAYBREAK. CONDITIONS SHOULD REMAIN BELOW
ADVISORY LEVELS. IN ADDITION...MARINERS SHOULD BE ON THE ALERT
FOR REDUCED VISIBILITIES CAUSED BY SMOKE FROM WILDFIRES ACROSS
SOUTHERN GEORGIA...ESPECIALLY ACROSS THE NEARSHORE GEORGIA COASTAL
WATERS.

WEDNESDAY THROUGH SUNDAY...
DEEP LAYER ATLANTIC RIDGE WILL REMAIN THE DOMINANT WEATHER
FEATURE WEDNESDAY INTO THE WEEKEND. THE ONLY POTENTIAL ISSUE IS A
TROPICAL WAVE IN THE BAHAMAS THAT COULD MOVE UP THE SOUTHEAST
COAST THU-FRI. THIS WOULD RESULT IN MORE VARYING WIND
DIRECTIONS/SPEEDS THAN WE ARE CURRENTLY FORECASTING. SINCE THE
GUIDANCE IS NOT IN MUCH AGREEMENT ON THIS FEATURE WE STUCK WITH A
MORE CLIMATOLOGICALLY FAVORED WIND PATTERN WITH MAINLY SOUTHERLY
FETCH WITH THE STANDARD DAILY FLUCTUATIONS WITH THE NOCTURNAL JET
AND AFTERNOON SEABREEZE.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
SC...NONE.
MARINE...NONE.

&&

RJB/JRL

Hazardous weather outlook, Jul 5, 4:27 AM EDT, 13 hours 7 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
427 AM EDT TUE JUL 5 2011

AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040-
042>045-047>052-060830-
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-
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 COLLETON-DORCHESTER-INLAND BERKELEY-
INLAND JASPER-BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
TIDAL BERKELEY-
427 AM EDT TUE JUL 5 2011

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...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

33

In the hours before

Local storm report, Jul 5, 4:59 PM EDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
459 PM EDT TUE JUL 05 2011

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

0450 PM     TSTM WND GST     2 SE SAINT STEPHEN      33.38N  79.90W
07/05/2011  E60 MPH          BERKELEY           SC   TRAINED SPOTTER

            ESTIMATE OF 60 TO 70 MPH WINDS WITH NICKEL SIZE HAIL

&&

EVENT NUMBER CHS1100627

FWA

Special weather statement, Jul 5, 5:03 PM EDT, 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
503 PM EDT TUE JUL 5 2011

GAZ100-101-116-052145-
BULLOCH-EFFINGHAM-INLAND BRYAN-
503 PM EDT TUE JUL 5 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BULLOCH...EFFINGHAM
AND BRYAN COUNTIES THROUGH 545 PM EDT...

AT 501 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR MARLOW...NEARLY STATIONARY.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BLITCHTON...EDEN...GUYTON...MARLOW AND PINEORA...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
PENNY SIZE HAIL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.

&&

LAT...LON 3242 8146 3226 8119 3215 8138 3222 8159
TIME...MOT...LOC 2103Z 163DEG 2KT 3225 8142

Local storm report, Jul 5, 5:10 PM EDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
510 PM EDT TUE JUL 05 2011

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

0500 PM     HAIL             2 S SAINT STEPHEN       33.38N  79.92W
07/05/2011  E1.00 INCH       BERKELEY           SC   PUBLIC

            THE PUBLIC REPORTED QUARTER SIZE HAIL NEAR HIGHWAY 52.

&&

EVENT NUMBER CHS1100628

DPB

Local storm report, Jul 5, 5:12 PM EDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
512 PM EDT TUE JUL 05 2011

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

0507 PM     HAIL             SAINT STEPHEN           33.40N  79.92W
07/05/2011  E0.75 INCH       BERKELEY           SC   TRAINED SPOTTER

            A SPOTTER REPORTED PENNY SIZE HAIL IN SAINT STEPHEN.

&&

EVENT NUMBER CHS1100629

DPB

Special weather statement, Jul 5, 5:12 PM EDT, 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
512 PM EDT TUE JUL 5 2011

GAZ137-140-052145-
INLAND MCINTOSH-LONG-
512 PM EDT TUE JUL 5 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF LONG AND MCINTOSH
COUNTIES THROUGH 545 PM EDT...

AT 509 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR COX...NEARLY STATIONARY.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
COX...TIBET AND TOWNSEND...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
PENNY SIZE HAIL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 3143 8161 3145 8162 3147 8162 3149 8165
      3154 8167 3156 8170 3159 8172 3166 8169
      3158 8145 3139 8157
TIME...MOT...LOC 2112Z 203DEG 2KT 3150 8163

Special weather statement, Jul 5, 5:30 PM EDT, 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
530 PM EDT TUE JUL 5 2011

SCZ045-052200-
INLAND BERKELEY-
530 PM EDT TUE JUL 5 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BERKELEY COUNTY
THROUGH 600 PM EDT...
...MARINERS ON LAKE MOULTRIE SHOULD SEEK SAFE HARBOR...

AT 529 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR MOOREFIELD...MOVING NORTHEAST AT 5 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
CROSS...EADYTOWN...EASTERN LAKE MARION...MONCKS CORNER...NORTHERN
LAKE MOULTRIE...OLD SANTEE CANAL STATE PARK...PINOPOLIS 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...
TORRENTIAL RAIN WHICH MAY PRODUCE LOCALIZED FLOODING...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.

&&

LAT...LON 3350 8009 3317 7994 3312 8019 3327 8030
      3330 8026 3336 8024 3339 8025 3340 8023
      3344 8023 3346 8020 3346 8015 3348 8016
      3350 8013
TIME...MOT...LOC 2130Z 241DEG 5KT 3328 8017

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 2:48 PM EDT	Special Weather Statement	CHS	Jasper	27 min
Jul 5, 3:41 PM EDT	Special Weather Statement	CHS	Jasper	34 min
Jul 5, 4:28 PM EDT	Special Weather Statement	CHS	Colleton, Dorchester	32 min
Jul 5, 4:44 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley	38 min
Jul 5, 4:46 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Dorchester	42 min
Jul 5, 5:30 PM EDT	Special Weather Statement	CHS	Berkeley	30 min
Jul 5, 7:06 PM EDT	Special Weather Statement	CHS	Allendale	39 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011 Every severe thunderstorm warning in 2011

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.