Alert archive / Georgia / Special Weather Statements in 2014

Special Weather Statement, NWS Columbia, SC

May 29, 2014McDuffie County, Georgia

NWS Columbia, SC issued this special weather statement at May 29, 2014, 5:55 PM EDT for McDuffie County, Georgia. It was in force for 35 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
May 29, 2014, 5:55 PM EDT (21:55 UTC)
Expired
May 29, 2014, 6:30 PM EDT
In force
35 min
Issued by
NWS Columbia, SC

County McDuffie County, GA

The radar

The Robins AFB radar (KJGX), 121 km from the middle of the area, began a volume at 21:55 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.9 hours before the alert went out and 195 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, Peachtre/Fal Fld, GA at 12:00Z on 2014-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 496 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, Peachtre/Fal Fld, GA at 12:00Z on 2014-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
496 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
917 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
54 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 Columbia, SC wrote its last area forecast discussion before this special weather statement went out at May 29, 2:37 PM EDT, 3 hours 18 minutes earlier.

Area forecast discussion, May 29, 2:37 PM EDT, 3 hours 18 minutes before
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, May 29, 5:17 AM EDT, 12 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
517 AM EDT THU MAY 29 2014

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-300930-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
517 AM EDT THU MAY 29 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL GEORGIA AND
CENTRAL SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS WILL HAVE THE POTENTIAL TO
PRODUCE LOCALLY HEAVY RAIN...ALONG WITH STRONG GUSTY WINDS AND
SMALL HAIL. CAN NOT RULE OUT AN ISOLATED SEVERE STORM OR FLASH
FLOOD EVENT WITH THE SLOW MOVING STORMS THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, May 29, 2:34 PM EDT, 3 hours 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
234 PM EDT THU MAY 29 2014

SCZ016-291915-
CHESTERFIELD-
234 PM EDT THU MAY 29 2014

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF CHESTERFIELD COUNTY
THROUGH 315 PM EDT...

AT 227 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...8 MILES EAST OF PATRICK...WITH NEARLY
STATIONARY MOVEMENT.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
CHERAW AND CHESTERFIELD...

GUSTY WINDS OF 40 TO 50 MPH...SMALL HAIL AND FREQUENT CLOUD TO
GROUND LIGHTNING WILL BE POSSIBLE WITH THESE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR USE
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.COLUMBIA.GOV TO RELAY
SEVERE WEATHER REPORTS. &&

LAT...LON 3460 7980 3454 7983 3449 7989 3448 7996
      3449 7999 3448 8007 3452 8028 3466 8027
      3477 8017 3470 7987 3468 7985 3465 7979
      3461 7978
TIME...MOT...LOC 1832Z 200DEG 1KT 3455 7991

HC
Special weather statement, May 29, 4:42 PM EDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
442 PM EDT THU MAY 29 2014

SCZ027-030-292130-
AIKEN-LEXINGTON-
442 PM EDT THU MAY 29 2014

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF LEXINGTON AND AIKEN
COUNTIES THROUGH 530 PM EDT...

AT 437 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...7 MILES NORTHWEST OF WAGENER...MOVING NORTHEAST
AT 10 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...PELION.

GUSTY WINDS OF 35 TO 45 MPH...SMALL HAIL AND FREQUENT CLOUD TO
GROUND LIGHTNING IS EXPECTED WITH THESE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR USE
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.COLUMBIA.GOV TO RELAY
SEVERE WEATHER REPORTS. &&

LAT...LON 3397 8140 3390 8125 3377 8114 3353 8135
      3375 8166
TIME...MOT...LOC 2041Z 234DEG 7KT 3373 8144

HC
Special weather statement, May 29, 5:32 PM EDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
532 PM EDT THU MAY 29 2014

SCZ022-292200-
KERSHAW-
532 PM EDT THU MAY 29 2014

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF KERSHAW COUNTY
THROUGH 600 PM EDT...

AT 529 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...6 MILES WEST OF BETHUNE...NEARLY STATIONARY.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...CASSATT AND BETHUNE.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR USE
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.COLUMBIA.GOV TO RELAY
SEVERE WEATHER REPORTS. &&

LAT...LON 3434 8033 3434 8036 3431 8036 3428 8044
      3427 8043 3425 8045 3442 8062 3455 8040
      3450 8033 3444 8033 3439 8029 3437 8028
TIME...MOT...LOC 2132Z 321DEG 2KT 3441 8045

HC
Special weather statement, May 29, 5:55 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
555 PM EDT THU MAY 29 2014

GAZ063-292230-
MCDUFFIE-
555 PM EDT THU MAY 29 2014

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF MCDUFFIE COUNTY
THROUGH 630 PM EDT...

AT 555 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR DEARING...DRIFTING EAST-NORTHEAST 5 MPH.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 30 TO 40 MPH...
PEA SIZE HAIL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR USE
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.COLUMBIA.GOV TO RELAY
SEVERE WEATHER REPORTS. &&

LAT...LON 3348 8239 3346 8238 3342 8234 3340 8234
      3337 8231 3333 8243 3334 8246 3345 8252
TIME...MOT...LOC 2155Z 252DEG 5KT 3340 8238

AWP

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 2:34 PM EDTSpecial Weather StatementCAEChesterfield41 min
May 29, 4:42 PM EDTSpecial Weather StatementCAELexington48 min
May 29, 5:32 PM EDTSpecial Weather StatementCAEKershaw28 min
May 29, 6:48 PM EDTSpecial Weather StatementCAECalhoun57 min
May 29, 7:47 PM EDTSevere Thunderstorm WarningCAECalhoun, Clarendon, Orangeburg43 min
May 29, 7:17 PM EDTSpecial Weather StatementCAEColumbia58 min

Nearby

Special Weather Statements in Georgia, 2014Every special weather statement in 2014

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.