Alert archive / South Carolina / Wind Advisories in 2014

Wind Advisory 2, NWS Columbia, SC

March 30, 201416 counties in South Carolina; 5 counties in Georgia

NWS Columbia, SC issued this wind advisory at Mar 30, 2014, 2:41 AM EDT for 16 counties in South Carolina; 5 counties in Georgia. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Mar 30, 2014, 2:41 AM EDT (06:41 UTC)
Expired
Mar 30, 2014, 1:16 PM EDT
In force
11 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 06:47 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, 6.7 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 2014-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 172 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 2014-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 square meters per square second.1939587897Sfc1 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
172 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
861 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
146 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.

572 
WWUS72 KCAE 300641
NPWCAE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE COLUMBIA SC
241 AM EDT SUN MAR 30 2014

...WIND ADVISORY TODAY AND FROST ADVISORY TONIGHT...

.THE PRESSURE GRADIENT BETWEEN STRONG LOW PRESSURE NEAR THE MIDDLE
ATLANTIC COAST AND A PRESSURE RIDGE IN THE MISSISSIPPI RIVER
VALLEY WILL RESULT IN WINDY CONDITIONS TODAY. WINDS WILL DIMINISH
TONIGHT AS THE RIDGE MOVES CLOSER TO OUR AREA AND THE PRESSURE
GRADIENT RELAXES. A PERIOD OF CALM WINDS WILL OCCUR TOWARD SUNRISE
MONDAY AND IT WILL LIKELY BECOME COLD ENOUGH FOR AREAS OF FROST...
ESPECIALLY IN THE NORMALLY COLDER LOCATIONS.

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-
301845-
/O.CAN.KCAE.LW.Y.0010.000000T0000Z-140331T0000Z/
/O.NEW.KCAE.WI.Y.0002.140330T0641Z-140331T0000Z/
/O.NEW.KCAE.FR.Y.0001.140331T1000Z-140331T1200Z/
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...AUGUSTA...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...
CHERAW...PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...
LUGOFF...EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...
WEST COLUMBIA...CAYCE...LEXINGTON...RED BANK...COLUMBIA...
BISHOPVILLE...SAVANNAH RIVER SITE...AIKEN...NORTH AUGUSTA...
SUMTER...BARNWELL...WILLISTON...BLACKVILLE...ORANGEBURG...
ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG...DENMARK
241 AM EDT SUN MAR 30 2014

...WIND ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...FROST ADVISORY IN EFFECT FROM 6 AM TO 8 AM EDT MONDAY...
...LAKE WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM THIS EVENING. A FROST
ADVISORY HAS ALSO BEEN ISSUED. THE FROST ADVISORY IS IN EFFECT
FROM 6 AM TO 8 AM MONDAY.

* TIMING...IT WILL BE WINDY THROUGH 800 PM. AREAS OF FROST WILL
  OCCUR TOWARD SUNRISE MONDAY. 

* WINDS...NORTHWEST 20 TO 30 MPH WITH GUSTS AROUND 45 MPH.

* TEMPERATURES...READINGS WILL BE IN THE MIDDLE 30S AND AREAS OF
  FROST WILL OCCUR TOWARD SUNRISE MONDAY.

* IMPACTS...STRONG WIND GUSTS WILL AFFECT HIGH PROFILE VEHICLES
  ESPECIALLY ON ELEVATED SURFACES SUCH AS BRIDGES AND OVERPASSES.
  LIGHTWEIGHT OBJECTS SUCH AS TRASH CANS AND LAWN FURNITURE COULD
  ALSO BE BLOWN OVER. THE WINDS MAY BE STRONG ENOUGH TO DOWN A FEW
  WEAK TREES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF AT LEAST 35 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

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

&&

$$
1 follow-up statement
175 
WWUS72 KCAE 301716
NPWCAE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE COLUMBIA SC
116 PM EDT SUN MAR 30 2014

...LAKE WIND ADVISORY THIS AFTERNOON AND FROST ADVISORY
TONIGHT...

.THE PRESSURE GRADIENT BETWEEN STRONG LOW PRESSURE NEAR THE
MIDDLE ATLANTIC COAST AND A PRESSURE RIDGE IN THE MISSISSIPPI
RIVER VALLEY WILL RESULT IN BREEZY CONDITIONS THIS AFTERNOON. 
WINDS WILL DIMINISH TONIGHT AS THE RIDGE MOVES CLOSER TO OUR AREA
AND THE PRESSURE GRADIENT RELAXES. A PERIOD OF CALM WINDS WILL
OCCUR TOWARD SUNRISE MONDAY AND IT WILL LIKELY BECOME COLD ENOUGH
FOR AREAS OF FROST...ESPECIALLY ALONG LOW LYING AREAS...STREAMS...
RIVER VALLEYS AND NORMALLY COLDER LOCATIONS.

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-
310115-
/O.CAN.KCAE.WI.Y.0002.000000T0000Z-140331T0000Z/
/O.NEW.KCAE.LW.Y.0011.140330T1716Z-140330T2300Z/
/O.CON.KCAE.FR.Y.0001.140331T1000Z-140331T1200Z/
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...AUGUSTA...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...
CHERAW...PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...
LUGOFF...EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...
WEST COLUMBIA...CAYCE...LEXINGTON...RED BANK...COLUMBIA...
BISHOPVILLE...SAVANNAH RIVER SITE...AIKEN...NORTH AUGUSTA...
SUMTER...BARNWELL...WILLISTON...BLACKVILLE...ORANGEBURG...
ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG...DENMARK
116 PM EDT SUN MAR 30 2014

...LAKE WIND ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...FROST ADVISORY REMAINS IN EFFECT FROM 6 AM TO 8 AM EDT
MONDAY...
...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A LAKE WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 7 PM EDT THIS EVENING. THE
WIND ADVISORY HAS BEEN CANCELLED. 

* TIMING...IT WILL BE VERY BREEZY THROUGH 700 PM. AREAS OF FROST
  WILL OCCUR TOWARD SUNRISE MONDAY.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS 30 TO 35 MPH.

* TEMPERATURES...READINGS WILL BE IN THE MIDDLE 30S AND AREAS OF 
  FROST WILL OCCUR TOWARD SUNRISE MONDAY. 

* IMPACTS...SOME OF THE WIND GUSTS MAY BE STRONG ENOUGH TO BRING
  DOWN ALREADY WEAKENED LIMBS AND BRANCHES FROM THIS WINTERS ICE
  STORM. FROST TOWARD SUNRISE MAY DAMAGE TENDER VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 2:41 AM EDTFrost AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more29 hr
Mar 30, 1:16 PM EDTLake Wind AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more6 hr

Nearby

Wind Advisories in South Carolina, 2014Wind Advisories in Georgia, 2014Every wind advisory 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.