Alert archive / South Carolina / Special Weather Statements in 2016

Special Weather Statement, NWS Charleston, SC

July 9, 2016Allendale County, South Carolina

NWS Charleston, SC issued this special weather statement at Jul 9, 2016, 12:35 AM EDT for Allendale County, South Carolina. It was in force for 25 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 9, 2016, 12:35 AM EDT (04:35 UTC)
Expired
Jul 9, 2016, 1:00 AM EDT
In force
25 min
Issued by
NWS Charleston, SC

County Allendale County, SC

The radar

The Charleston,SC radar (KCLX), 61 km from the middle of the area, began a volume at 04:38 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 00:00Z, 4.6 hours before the alert went out and 139 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 00:00Z on 2016-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3204 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2016-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.1939Sfc1 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
3204 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1436 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
181 m²/s²
Significant tornado parameter
1.0
Supercell composite
14.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Jul 9, 12:05 AM EDT, 30 minutes earlier.

Area forecast discussion, Jul 9, 12:05 AM EDT, 30 minutes before
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Hazardous weather outlook, Jul 8, 8:11 PM EDT, 4 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
811 PM EDT FRI JUL 8 2016

GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-100015-
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-
811 PM EDT FRI JUL 8 2016

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

.DAY ONE...TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

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

HEAT...HIGHS IN THE MID 90S TO AROUND 100 COMBINED WITH ELEVATED
HUMIDITY COULD PRODUCE HEAT INDICES AROUND 110 THROUGH THE
WEEKEND AWAY FROM THE BEACHES. HEAT ADVISORIES COULD BE NEEDED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.

AMZ330-350-352-354-374-100015-
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-
811 PM EDT FRI JUL 8 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

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

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Special weather statement, Jul 9, 12:35 AM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
1235 AM EDT SAT JUL 9 2016

GAZ088-SCZ040-090500-
SCREVEN GA-ALLENDALE SC-
1235 AM EDT SAT JUL 9 2016

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF SCREVEN AND ALLENDALE
COUNTIES UNTIL 100 AM EDT...

AT 1234 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR SAVANNAH RIVER SITE...MOVING SOUTHEAST AT 40
MPH.

  HAZARD...STRONG WINDS 45 TO 55 MPH.

  IMPACT...EXPECT MINOR DAMAGE TO TREE LIMBS AND BLOWING AROUND OF
           LIGHT...UNSECURED OBJECTS.

SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE...
ALLENDALE...SYCAMORE...ULMER...SEIGLING...MARTIN...MILLHAVEN...MILLETT AND
BURTONS FERRY LANDING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM MAY INTENSIFY. BE CERTAIN TO MONITOR LOCAL RADIO AND TV
STATIONS AS WELL AS LOCAL CABLE TV OUTLETS FOR ADDITIONAL INFORMATION
AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3311 8137 3312 8120 3305 8113 3288 8143
      3292 8175 3304 8156 3307 8160 3309 8160
      3308 8161 3310 8161 3316 8154
TIME...MOT...LOC 0434Z 302DEG 37KT 3317 8171

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 12:53 AM EDTSevere Thunderstorm WarningCHSAllendale, Berkeley, Colleton, Dorchester, Hampton52 min
Jul 9, 1:26 AM EDTSpecial Weather StatementCHSBerkeley34 min
Jul 9, 1:56 AM EDTSpecial Weather StatementCHSBerkeley, Colleton, Dorchester49 min
Jul 9, 2:58 AM EDTSpecial Marine WarningCHS62 min
Jul 9, 3:09 AM EDTSpecial Marine WarningCHS66 min
Jul 9, 3:15 AM EDTSpecial Marine WarningCHS60 min
Jul 9, 3:34 AM EDTHeat AdvisoryCHSBerkeley, Colleton, Dorchester12 hr
Jul 9, 11:01 AM EDTSpecial Weather StatementCHSColleton29 min
Jul 9, 11:04 AM EDTSpecial Weather StatementCHSCharleston26 min
Jul 9, 12:10 PM EDTSpecial Weather StatementCHSCharleston35 min
Jul 9, 12:23 PM EDTSpecial Marine WarningCHS52 min
Jul 9, 12:47 PM EDTSpecial Weather StatementCHSCharleston43 min
Jul 9, 2:18 PM EDTSpecial Weather StatementCHSCharleston27 min
Jul 9, 2:50 PM EDTSpecial Weather StatementCHSBeaufort, Jasper40 min
Jul 9, 2:53 PM EDTSpecial Weather StatementCHSHampton37 min
Jul 9, 3:06 PM EDTSpecial Weather StatementCHSJasper39 min
Jul 9, 3:13 PM EDTSevere Thunderstorm WarningCHSHampton, Jasper47 min
Jul 9, 3:21 PM EDTSpecial Marine WarningCHS84 min
Jul 9, 3:35 PM EDTSpecial Weather StatementCHSJasper25 min
Jul 9, 3:37 PM EDTSpecial Weather StatementCHSCharleston38 min
Jul 9, 3:52 PM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton, Jasper53 min
Jul 9, 4:01 PM EDTSpecial Marine WarningCHS89 min
Jul 9, 4:40 PM EDTSpecial Marine WarningCHS95 min
Jul 9, 5:13 PM EDTSpecial Weather StatementCHSBerkeley32 min
Jul 9, 5:18 PM EDTSevere Thunderstorm WarningCHSBerkeley, Dorchester42 min
Jul 9, 5:38 PM EDTSpecial Weather StatementCHSDorchester37 min
Jul 9, 12:55 PM EDTSpecial Weather StatementCHSJenkins50 min
Jul 9, 1:44 PM EDTSpecial Weather StatementCHSBulloch46 min
Jul 9, 2:00 PM EDTSevere Thunderstorm WarningCHSBulloch, Candler30 min
Jul 9, 2:31 PM EDTSpecial Weather StatementCHSBulloch, Candler44 min
Jul 9, 2:36 PM EDTSevere Thunderstorm WarningCHSBulloch, Effingham54 min
Jul 9, 3:07 PM EDTSpecial Weather StatementCHSEvans23 min
Jul 9, 3:15 PM EDTSpecial Weather StatementCHSJenkins30 min
Jul 9, 4:23 PM EDTSpecial Weather StatementCHSJenkins52 min

Nearby

Special Weather Statements in South Carolina, 2016Every special weather statement in 2016

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.