Alert archive / South Carolina / Frost Advisories in 2011

Frost Advisory 2, NWS Columbia, SC

October 29, 201116 counties in South Carolina; 5 counties in Georgia

NWS Columbia, SC issued this frost advisory at Oct 29, 2011, 4:08 AM EDT for 16 counties in South Carolina; 5 counties in Georgia. It took effect at Oct 30, 2011, 5:00 AM EDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Oct 29, 2011, 4:08 AM EDT (08:08 UTC)
In effect from
Oct 30, 2011, 5:00 AM EDT
Expired
Oct 30, 2011, 9:00 AM EDT
In force
4 hr
Issued by
NWS Columbia, SC
All 21 counties

Burke County, GA, Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chesterfield County, SC, Clarendon County, SC, Edgefield County, SC, Fairfield County, SC, Kershaw County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 28 km from the middle of the area, began a volume at 08:08 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, 8.1 hours before the alert went out and 162 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 2011-10-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2011-10-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 154 square meters per square second.1939587897117Sfc1 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
1 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
643 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
154 m²/s²
0-3 km storm-relative helicity
278 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.

879 
WWUS72 KCAE 290808
NPWCAE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE COLUMBIA SC
408 AM EDT SAT OCT 29 2011



GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-
291615-
/O.NEW.KCAE.LW.Y.0028.111029T1500Z-111029T2300Z/
/O.NEW.KCAE.FR.Y.0002.111030T0900Z-111030T1300Z/
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
INCLUDING THE CITIES OF...LINCOLNTON...THOMSON...MARTINEZ...
EVANS...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...CHERAW...
PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...LUGOFF...
EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...WEST COLUMBIA...
CAYCE...LEXINGTON...RED BANK...COLUMBIA...BISHOPVILLE...AIKEN...
NORTH AUGUSTA...SUMTER...BARNWELL...WILLISTON...BLACKVILLE...
ORANGEBURG...ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG...
DENMARK
408 AM EDT SAT OCT 29 2011

...LAKE WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM
EDT THIS EVENING...
...FROST ADVISORY IN EFFECT FROM 5 AM TO 9 AM EDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A LAKE WIND
ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT
THIS EVENING. A FROST ADVISORY HAS ALSO BEEN ISSUED. THIS FROST
ADVISORY IS IN EFFECT FROM 5 AM TO 9 AM EDT SUNDAY. 

* LOCATIONS...MIDLANDS OF CENTRAL SOUTH CAROLINA AND THE CENTRAL
  SAVANNAH AREA OF GEORGIA. 

* TEMPERATURES...IN THE MIDDLE 30S LATE TONIGHT AND EARLY SUNDAY.

* WINDS...NORTHWEST 15 TO 25 KNOTS ON AREA LAKES THIS AFTERNOON.

* IMPACTS...BREEZY CONDITIONS AND CHOPPY WATERS ON AREA LAKES
  POSSIBLY LEADING TO HAZARDOUS CONDITIONS FOR BOATERS. FROST IS
  EXPECTED LATE TONIGHT AND EARLY SUNDAY MORNING AS WINDS DIMINISH
  AND TEMPERATURES FALL INTO THE MIDDLE 30S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP
ON AREA LAKES. SMALL BOATS AND PERSONAL WATERCRAFT WILL BE
ESPECIALLY PRONE TO CAPSIZING.

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
4 follow-up statements
151 
WWUS72 KCAE 291732
NPWCAE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE COLUMBIA SC
132 PM EDT SAT OCT 29 2011

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-
300200-
/O.CON.KCAE.LW.Y.0028.000000T0000Z-111029T2300Z/
/O.CON.KCAE.FR.Y.0002.111030T0900Z-111030T1300Z/
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
INCLUDING THE CITIES OF...LINCOLNTON...THOMSON...MARTINEZ...
EVANS...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...CHERAW...
PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...LUGOFF...
EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...WEST COLUMBIA...
CAYCE...LEXINGTON...RED BANK...COLUMBIA...BISHOPVILLE...AIKEN...
NORTH AUGUSTA...SUMTER...BARNWELL...WILLISTON...BLACKVILLE...
ORANGEBURG...ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG...
DENMARK
132 PM EDT SAT OCT 29 2011

...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING...
...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 9 AM EDT
SUNDAY...

A LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING. A FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 9 AM EDT
SUNDAY. 

* LOCATIONS...MIDLANDS OF CENTRAL SOUTH CAROLINA AND THE CENTRAL 
  SAVANNAH AREA OF GEORGIA. 

* TEMPERATURES...N THE MIDDLE 30S LATE TONIGHT AND EARLY SUNDAY.

* WINDS...NORTHWEST 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS.

* IMPACTS...BREEZY CONDITIONS AND CHOPPY WATERS ON AREA LAKES 
  POSSIBLY LEADING TO HAZARDOUS CONDITIONS FOR BOATERS. FROST IS 
  EXPECTED LATE TONIGHT AND EARLY SUNDAY MORNING AS WINDS 
  DIMINISH AND TEMPERATURES FALL INTO THE MIDDLE 30S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP
ON AREA LAKES. SMALL BOATS AND PERSONAL WATERCRAFT WILL BE
ESPECIALLY PRONE TO CAPSIZING.

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
076 
WWUS72 KCAE 292305
NPWCAE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE COLUMBIA SC
705 PM EDT SAT OCT 29 2011

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-
300715-
/O.EXP.KCAE.LW.Y.0028.000000T0000Z-111029T2300Z/
/O.CON.KCAE.FR.Y.0002.111030T0900Z-111030T1300Z/
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
INCLUDING THE CITIES OF...LINCOLNTON...THOMSON...MARTINEZ...
EVANS...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...CHERAW...
PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...LUGOFF...
EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...WEST COLUMBIA...
CAYCE...LEXINGTON...RED BANK...COLUMBIA...BISHOPVILLE...AIKEN...
NORTH AUGUSTA...SUMTER...BARNWELL...WILLISTON...BLACKVILLE...
ORANGEBURG...ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG...
DENMARK
705 PM EDT SAT OCT 29 2011

...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 9 AM EDT
SUNDAY...
...LAKE WIND ADVISORY HAS EXPIRED...

THE LAKE WIND ADVISORY IS NO LONGER IN EFFECT. A FROST ADVISORY
REMAINS IN EFFECT FROM 5 AM TO 9 AM EDT SUNDAY. 

* LOCATIONS...MIDLANDS OF CENTRAL SOUTH CAROLINA AND THE CENTRAL 
  SAVANNAH AREA OF GEORGIA. 

* TEMPERATURES...IN THE MIDDLE 30S EARLY SUNDAY.

* IMPACTS...FROST IS EXPECTED EARLY SUNDAY MORNING AS WINDS
  DIMINISH AND TEMPERATURES FALL INTO THE MIDDLE 30S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
782 
WWUS72 KCAE 292307
NPWCAE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE COLUMBIA SC
707 PM EDT SAT OCT 29 2011

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-
300715-
/O.CON.KCAE.FR.Y.0002.111030T0900Z-111030T1300Z/
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
INCLUDING THE CITIES OF...LINCOLNTON...THOMSON...MARTINEZ...
EVANS...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...CHERAW...
PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...LUGOFF...
EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...WEST COLUMBIA...
CAYCE...LEXINGTON...RED BANK...COLUMBIA...BISHOPVILLE...AIKEN...
NORTH AUGUSTA...SUMTER...BARNWELL...WILLISTON...BLACKVILLE...
ORANGEBURG...ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG...
DENMARK
707 PM EDT SAT OCT 29 2011

...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 9 AM EDT
SUNDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 9 AM EDT SUNDAY. 

* LOCATIONS...MIDLANDS OF CENTRAL SOUTH CAROLINA AND THE CENTRAL 
  SAVANNAH AREA OF GEORGIA. 

* TEMPERATURES...IN THE MIDDLE 30S EARLY SUNDAY.

* IMPACTS...FROST IS EXPECTED EARLY SUNDAY MORNING AS WINDS 
  DIMINISH AND TEMPERATURES FALL INTO THE MIDDLE 30S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
532 
WWUS72 KCAE 300510
NPWCAE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE COLUMBIA SC
110 AM EDT SUN OCT 30 2011

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-
301300-
/O.CON.KCAE.FR.Y.0002.111030T0900Z-111030T1300Z/
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
INCLUDING THE CITIES OF...LINCOLNTON...THOMSON...MARTINEZ...
EVANS...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...CHERAW...
PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...LUGOFF...
EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...WEST COLUMBIA...
CAYCE...LEXINGTON...RED BANK...COLUMBIA...BISHOPVILLE...AIKEN...
NORTH AUGUSTA...SUMTER...BARNWELL...WILLISTON...BLACKVILLE...
ORANGEBURG...ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG...
DENMARK
110 AM EDT SUN OCT 30 2011

...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 9 AM EDT THIS
MORNING...

A FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 9 AM EDT THIS
MORNING. 

* LOCATIONS...MIDLANDS OF CENTRAL SOUTH CAROLINA AND THE CENTRAL 
  SAVANNAH AREA OF GEORGIA. 

* TEMPERATURES...IN THE MID 30S.

* IMPACTS...FROST IS EXPECTED EARLY THIS MORNING AS WINDS
  DIMINISH AND TEMPERATURES FALL INTO THE MIDDLE 30S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 29, 4:08 AM EDTLake Wind AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more15 hr

Nearby

Frost Advisories in South Carolina, 2011Frost Advisories in Georgia, 2011Every frost advisory 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.