Alert archive / South Carolina / Freeze Warnings in 2007

Freeze Warning 2, NWS Columbia, SC

March 18, 200716 counties in South Carolina; 5 counties in Georgia

NWS Columbia, SC issued this freeze warning at Mar 18, 2007, 3:06 PM EDT for 16 counties in South Carolina; 5 counties in Georgia. It took effect at Mar 19, 2007, 4:00 AM EDT. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 18, 2007, 3:06 PM EDT (19:06 UTC)
In effect from
Mar 19, 2007, 4:00 AM EDT
Expired
Mar 19, 2007, 9:00 AM EDT
In force
5 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 19:07 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 12:00Z, 7.1 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 12:00Z on 2007-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2007-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -61 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1991 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
-61 m²/s²
0-3 km storm-relative helicity
154 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.

000 
WWUS72 KCAE 181906
NPWCAE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE COLUMBIA SC
306 PM EDT SUN MAR 18 2007

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-
190900-
/O.NEW.KCAE.FZ.W.0002.070319T0800Z-070319T1300Z/
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...AIKEN...NORTH AUGUSTA...SUMTER...BARNWELL...
WILLISTON...BLACKVILLE...ORANGEBURG...ST. MATTHEWS...MANNING...
SUMMERTON...BAMBERG...DENMARK
306 PM EDT SUN MAR 18 2007

...FREEZE WARNING IN EFFECT FROM 4 AM TO 9 AM EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FOR EARLY MONDAY MORNING.

CANADIAN HIGH PRESSURE WILL SETTLE ACROSS THE CAROLINAS OVERNIGHT. 
CLEAR SKIES AND NEARLY CALM WINDS...COUPLED WITH A DRY AIRMASS WILL
ALLOW TEMPERATURES TO COOL TO BELOW FREEZING EARLY MONDAY
MORNING. LOW TEMPERATURES IN THE UPPER 20S TO LOWER 30S ARE
EXPECTED BY SUNRISE MONDAY MORNING. TEMPERATURES SHOULD RISE ABOVE
FREEZING BY 9 AM MONDAY MORNING.

A FREEZE WARNING IS ISSUED DURING THE GROWING SEASON WHEN FREEZING
TEMPERATURES ARE FORECAST. YOU MAY WANT TO TAKE PRECAUTIONS TO
PROTECT PLANTS SENSITIVE TO FREEZING TEMPERATURES.

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS COULD HARM SENSITIVE VEGETATION.

$$
1 follow-up statement
000 
WWUS72 KCAE 190820
NPWCAE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE COLUMBIA SC
420 AM EDT MON MAR 19 2007

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-
191300-
/O.CON.KCAE.FZ.W.0002.000000T0000Z-070319T1300Z/
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...AIKEN...NORTH AUGUSTA...SUMTER...BARNWELL...
WILLISTON...BLACKVILLE...ORANGEBURG...ST. MATTHEWS...MANNING...
SUMMERTON...BAMBERG...DENMARK
420 AM EDT MON MAR 19 2007

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

A FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING. 

CLEAR SKIES AND NEARLY CALM WINDS...COUPLED WITH A DRY AIRMASS
WILL ALLOW TEMPERATURES TO COOL TO BELOW FREEZING EARLY THIS MORNING
IN MOST LOCATIONS. LOW TEMPERATURES IN THE UPPER 20S TO LOWER 30S ARE
EXPECTED BY SUNRISE. TEMPERATURES SHOULD RISE ABOVE FREEZING BY 9
AM.

A FREEZE WARNING IS ISSUED DURING THE GROWING SEASON WHEN
FREEZING TEMPERATURES ARE FORECAST. YOU MAY WANT TO TAKE
PRECAUTIONS TO PROTECT PLANTS SENSITIVE TO FREEZING TEMPERATURES.

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS COULD HARM SENSITIVE VEGETATION.

$$

Nearby

Freeze Warnings in South Carolina, 2007Freeze Warnings in Georgia, 2007Every freeze warning in 2007

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.