Alert archive / Tennessee / Freeze Warnings in 2012

Freeze Warning 2, NWS Nashville, TN

April 11, 201239 counties in Tennessee

NWS Nashville, TN issued this freeze warning at Apr 11, 2012, 3:49 AM CDT for 39 counties in Tennessee. It took effect at Apr 12, 2012, 3:00 AM CDT. 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
Apr 11, 2012, 3:49 AM CDT (08:49 UTC)
In effect from
Apr 12, 2012, 3:00 AM CDT
Expired
Apr 12, 2012, 8:00 AM CDT
In force
5 hr
Issued by
NWS Nashville, TN
All 39 counties

Bedford County, TN, Benton County, TN, Cannon County, TN, Cheatham County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Fentress County, TN, Giles County, TN, Grundy County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Overton County, TN, Perry County, TN, Pickett County, TN, Putnam County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN, Williamson County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 29 km from the middle of the area, began a volume at 08:51 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

Nashville Metro, TN (KBNA), launched 00:00Z, 8.8 hours before the alert went out and 18 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, Nashville Metro, TN at 00:00Z on 2012-04-11Temperature 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, Nashville Metro, TN at 00:00Z on 2012-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3222 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
103 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.

861 
WWUS74 KOHX 110849
NPWOHX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NASHVILLE TN
349 AM CDT WED APR 11 2012

...FREEZE WARNING FOR THE NORTHERN CUMBERLAND PLATEAU AND FROST
ADVISORY FOR THE REMAINDER OF MIDDLE TENNESSEE THIS MORNING...

...FREEZE WARNING FOR THE CUMBERLAND PLATEAU LATE TONIGHT AND
A FREEZE WATCH FOR LOCATIONS WEST OF THE CUMBERLAND PLATEAU LATE
TONIGHT...

.A COLD CANADIAN HIGH PRESSURE SYSTEM WILL SPREAD ACROSS THE AREA
TODAY AND TONIGHT...BRINGING WITH IT THE COLDEST TEMPERATURES IN
SEVERAL WEEKS ACROSS MIDDLE TENNESSEE.

LOW TEMPERATURES ARE FORECAST TO FALL NEAR OR BELOW THE FREEZING
MARK THIS MORNING OVER MUCH OF THE NORTHERN CUMBERLAND PLATEAU.
PATCHY FROST IS EXPECTED ACROSS THE REMAINDER OF THE MID STATE
WITH LOWS IN THE MID 30S.

BELOW FREEZING TEMPERATURES AND FROST WILL BE MORE WIDESPREAD
ACROSS THE CUMBERLAND PLATEAU LATE TONIGHT...WITH LOW LYING
AREAS WEST OF THE CUMBERLAND PLATEAU ALSO LIKELY SEEING
TEMPERATURES NEAR OR BELOW FREEZING. 

TNZ011-032>034-065-066-111245-
/O.UPG.KOHX.FZ.A.0002.120412T0900Z-120412T1200Z/
/O.NEW.KOHX.FZ.W.0002.120412T0900Z-120412T1200Z/
/O.CON.KOHX.FZ.W.0001.120411T0900Z-120411T1200Z/
PICKETT-PUTNAM-OVERTON-FENTRESS-WHITE-CUMBERLAND-
INCLUDING THE CITIES OF...BYRDSTOWN...COOKEVILLE...LIVINGSTON...
JAMESTOWN...SPARTA...CROSSVILLE
349 AM CDT WED APR 11 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING...
...FREEZE WARNING IN EFFECT FROM 4 AM TO 7 AM CDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 4 AM TO 7 AM CDT THIS MORNING
AND ALSO LATE TONIGHT FOR THE CUMBERLAND PLATEAU.

* TEMPERATURE...LOW TEMPERATURES ARE EXPECTED TO FALL INTO THE
  LOWER 30S THIS MORNING...AND TO NEAR 30 LATE TONIGHT.

* IMPACTS...RECORD SETTING WARMTH IN MARCH HAS PRODUCED AN EARLY 
  GROWING SEASON. FREEZING TEMPERATURES WILL LIKELY DAMAGE OR 
  KILL SENSITIVE OUTDOOR PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS BELOW FREEZING TEMPERATURES ARE EXPECTED.
SENSITIVE OUTDOOR PLANTS WILL BE DAMAGED OR KILLED IF LEFT
UNPROTECTED.
&&

$$

TNZ078>080-111245-
/O.UPG.KOHX.FZ.A.0002.120412T0900Z-120412T1200Z/
/O.NEW.KOHX.FZ.W.0002.120412T0900Z-120412T1200Z/
/O.CON.KOHX.FR.Y.0002.120411T0900Z-120411T1200Z/
WARREN-GRUNDY-VAN BUREN-
INCLUDING THE CITIES OF...MCMINNVILLE...ALTAMONT...SPENCER
349 AM CDT WED APR 11 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING...
...FREEZE WARNING IN EFFECT FROM 4 AM TO 7 AM CDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 4 AM TO 7 AM CDT THURSDAY.
THE FREEZE WATCH IS NO LONGER IN EFFECT.

* TEMPERATURE...LOW TEMPERATURES ARE EXPECTED TO FALL TO AROUND 30
  DEGREES LATE TONIGHT.

* IMPACTS...RECORD SETTING WARMTH IN MARCH HAS PRODUCED AN EARLY 
  GROWING SEASON. ANY FROST THAT FORMS COULD DAMAGE OR KILL 
  SENSITIVE OUTDOOR PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS LIKELY. SENSITIVE OUTDOOR
PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED.

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.
&&

$$

TNZ005>010-022>031-056>064-075-077-093>095-111245-
/O.CON.KOHX.FR.Y.0002.120411T0900Z-120411T1200Z/
/O.CON.KOHX.FZ.A.0002.120412T0900Z-120412T1200Z/
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-BENTON-HOUSTON-
HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-SMITH-
JACKSON-PERRY-HICKMAN-LEWIS-WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-
CANNON-DE KALB-BEDFORD-COFFEE-WAYNE-LAWRENCE-GILES-
INCLUDING THE CITIES OF...DOVER...CLARKSVILLE...SPRINGFIELD...
GALLATIN...LAFAYETTE...CELINA...CAMDEN...ERIN...WAVERLY...
DICKSON...ASHLAND CITY...NASHVILLE...LEBANON...MOUNT JULIET...
HARTSVILLE...CARTHAGE...GAINESBORO...LOBELVILLE...CENTERVILLE...
HOHENWALD...FRANKLIN...BRENTWOOD...COLUMBIA...LEWISBURG...
MURFREESBORO...WOODBURY...SMITHVILLE...SHELBYVILLE...TULLAHOMA...
MANCHESTER...WAYNESBORO...LAWRENCEBURG...PULASKI
349 AM CDT WED APR 11 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY MORNING...

* TEMPERATURE...LOW TEMPERATURES ARE EXPECTED TO FALL INTO THE MID
  30S THIS MORNING...AND POSSIBLY INTO THE LOWER 30S ACROSS LOW
  LYING LOCATIONS WEST OF THE CUMBERLAND PLATEAU LATE TONIGHT.

* IMPACTS...RECORD SETTING WARMTH IN MARCH HAS PRODUCED AN EARLY 
  GROWING SEASON. ANY FROST THAT FORMS COULD DAMAGE OR KILL 
  SENSITIVE OUTDOOR PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS LIKELY. SENSITIVE OUTDOOR
PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED.

A FREEZE WATCH MEANS BELOW FREEZING TEMPERATURES ARE POSSIBLE.
PREPARATIONS SHOULD BE MADE TO PROTECT TENDER VEGETATION SHOULD
FREEZING TEMPERATURES OCCUR.

&&

$$
31
2 follow-up statements
839 
WWUS74 KOHX 111208
NPWOHX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NASHVILLE TN
708 AM CDT WED APR 11 2012

...FREEZE WARNING FOR THE CUMBERLAND PLATEAU AND A FREEZE WATCH
FOR LOCATIONS WEST OF THE CUMBERLAND PLATEAU LATE TONIGHT...

.A COLD CANADIAN HIGH PRESSURE SYSTEM WILL SPREAD ACROSS THE AREA
TONIGHT...BRINGING WITH IT THE COLDEST TEMPERATURES IN SEVERAL
WEEKS ACROSS MIDDLE TENNESSEE.

BELOW FREEZING TEMPERATURES AND FROST WILL BECOME WIDESPREAD
ACROSS THE CUMBERLAND PLATEAU LATE TONIGHT...WITH LOW LYING AREAS
WEST OF THE CUMBERLAND PLATEAU ALSO LIKELY SEEING TEMPERATURES
NEAR OR BELOW FREEZING AND AREAS OF FROST.

TNZ011-032>034-065-066-112100-
/O.EXP.KOHX.FZ.W.0001.000000T0000Z-120411T1200Z/
/O.CON.KOHX.FZ.W.0002.120412T0900Z-120412T1200Z/
PICKETT-PUTNAM-OVERTON-FENTRESS-WHITE-CUMBERLAND-
INCLUDING THE CITIES OF...BYRDSTOWN...COOKEVILLE...LIVINGSTON...
JAMESTOWN...SPARTA...CROSSVILLE
708 AM CDT WED APR 11 2012

...FREEZE WARNING REMAINS IN EFFECT FROM 4 AM TO 7 AM CDT
THURSDAY...

* TEMPERATURE...LOW TEMPERATURES ARE EXPECTED TO FALL TO AROUND 30
  DEGREES LATE TONIGHT.

* IMPACTS...RECORD SETTING WARMTH IN MARCH HAS PRODUCED AN EARLY 
  GROWING SEASON. FREEZING TEMPERATURES WILL LIKELY DAMAGE OR 
  KILL SENSITIVE OUTDOOR PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS BELOW FREEZING TEMPERATURES ARE EXPECTED.
SENSITIVE OUTDOOR PLANTS WILL BE DAMAGED OR KILLED IF LEFT
UNPROTECTED. 
&&

$$

TNZ078>080-112100-
/O.EXP.KOHX.FR.Y.0002.000000T0000Z-120411T1200Z/
/O.CON.KOHX.FZ.W.0002.120412T0900Z-120412T1200Z/
WARREN-GRUNDY-VAN BUREN-
INCLUDING THE CITIES OF...MCMINNVILLE...ALTAMONT...SPENCER
708 AM CDT WED APR 11 2012

...FREEZE WARNING REMAINS IN EFFECT FROM 4 AM TO 7 AM CDT
THURSDAY...

* TEMPERATURE...LOW TEMPERATURES ARE EXPECTED TO FALL TO AROUND 
  30 DEGREES LATE TONIGHT. 

* IMPACTS...RECORD SETTING WARMTH IN MARCH HAS PRODUCED AN EARLY 
  GROWING SEASON. ANY FROST THAT FORMS COULD DAMAGE OR KILL 
  SENSITIVE OUTDOOR PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.
&&

$$

TNZ005>010-022>031-056>064-075-077-093>095-112100-
/O.EXP.KOHX.FR.Y.0002.000000T0000Z-120411T1200Z/
/O.CON.KOHX.FZ.A.0002.120412T0900Z-120412T1200Z/
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-BENTON-HOUSTON-
HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-SMITH-
JACKSON-PERRY-HICKMAN-LEWIS-WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-
CANNON-DE KALB-BEDFORD-COFFEE-WAYNE-LAWRENCE-GILES-
INCLUDING THE CITIES OF...DOVER...CLARKSVILLE...SPRINGFIELD...
GALLATIN...LAFAYETTE...CELINA...CAMDEN...ERIN...WAVERLY...
DICKSON...ASHLAND CITY...NASHVILLE...LEBANON...MOUNT JULIET...
HARTSVILLE...CARTHAGE...GAINESBORO...LOBELVILLE...CENTERVILLE...
HOHENWALD...FRANKLIN...BRENTWOOD...COLUMBIA...LEWISBURG...
MURFREESBORO...WOODBURY...SMITHVILLE...SHELBYVILLE...TULLAHOMA...
MANCHESTER...WAYNESBORO...LAWRENCEBURG...PULASKI
708 AM CDT WED APR 11 2012

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY MORNING...

* TEMPERATURE...LOW TEMPERATURES ARE EXPECTED TO FALL INTO THE
  LOWER 30S ACROSS LOW LYING LOCATIONS WEST OF THE CUMBERLAND
  PLATEAU LATE TONIGHT.

* IMPACTS...RECORD SETTING WARMTH IN MARCH HAS PRODUCED AN EARLY 
  GROWING SEASON. ANY FROST THAT FORMS COULD DAMAGE OR KILL 
  SENSITIVE OUTDOOR PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.

&&

$$
31
111 
WWUS74 KOHX 111729
NPWOHX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NASHVILLE TN
1229 PM CDT WED APR 11 2012

...FREEZE WARNING FOR ALL OF MIDDLE TENNESSEE AND THE CUMBERLAND
PLATEAU LATE TONIGHT AND EARLY THURSDAY MORNING...

.A COLD CANADIAN HIGH PRESSURE SYSTEM WILL CONTINUE SPREADING
COLDER AIR ACROSS THE AREA TONIGHT, BRINGING WITH IT THE LOWEST
TEMPERATURES IN SEVERAL WEEKS ACROSS MIDDLE TENNESSEE.

SUB-FREEZING TEMPERATURES AND FROST WILL BECOME WIDESPREAD ACROSS
THE CUMBERLAND PLATEAU LATE TONIGHT...WITH LOW LYING AREAS WEST OF
THE CUMBERLAND PLATEAU ALSO SEEING TEMPERATURES NEAR OR BELOW
FREEZING AND AREAS OF FROST.

TNZ005>010-022>031-056>064-075-077-093>095-121300-
/O.UPG.KOHX.FZ.A.0002.120412T0900Z-120412T1200Z/
/O.EXB.KOHX.FZ.W.0002.120412T0800Z-120412T1300Z/
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-BENTON-HOUSTON-
HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-SMITH-
JACKSON-PERRY-HICKMAN-LEWIS-WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-
CANNON-DE KALB-BEDFORD-COFFEE-WAYNE-LAWRENCE-GILES-
INCLUDING THE CITIES OF...DOVER...CLARKSVILLE...SPRINGFIELD...
GALLATIN...LAFAYETTE...CELINA...CAMDEN...ERIN...WAVERLY...
DICKSON...ASHLAND CITY...NASHVILLE...LEBANON...MOUNT JULIET...
HARTSVILLE...CARTHAGE...GAINESBORO...LOBELVILLE...CENTERVILLE...
HOHENWALD...FRANKLIN...BRENTWOOD...COLUMBIA...LEWISBURG...
MURFREESBORO...WOODBURY...SMITHVILLE...SHELBYVILLE...TULLAHOMA...
MANCHESTER...WAYNESBORO...LAWRENCEBURG...PULASKI
1229 PM CDT WED APR 11 2012

...FREEZE WARNING IN EFFECT FROM 3 AM TO 8 AM CDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 3 AM TO 8 AM CDT THURSDAY. THE
EARLIER FREEZE WATCH IS NO LONGER IN EFFECT.

* TEMPERATURE...LOW TEMPERATURES ARE EXPECTED TO FALL INTO THE 
  LOWER 30S ACROSS LOW LYING LOCATIONS WEST OF THE CUMBERLAND 
  PLATEAU LATE TONIGHT. 

* IMPACTS...RECORD SETTING WARMTH IN MARCH HAS PRODUCED AN EARLY 
  GROWING SEASON. ANY FROST THAT FORMS COULD DAMAGE OR KILL 
  SENSITIVE OUTDOOR PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

TNZ011-032>034-065-066-078>080-121300-
/O.EXT.KOHX.FZ.W.0002.120412T0800Z-120412T1300Z/
PICKETT-PUTNAM-OVERTON-FENTRESS-WHITE-CUMBERLAND-WARREN-GRUNDY-
VAN BUREN-
INCLUDING THE CITIES OF...BYRDSTOWN...COOKEVILLE...LIVINGSTON...
JAMESTOWN...SPARTA...CROSSVILLE...MCMINNVILLE...ALTAMONT...
SPENCER
1229 PM CDT WED APR 11 2012

...FREEZE WARNING NOW IN EFFECT FROM 3 AM TO 8 AM CDT THURSDAY...

* TEMPERATURE...LOW TEMPERATURES ARE EXPECTED TO FALL TO AROUND 
  30 DEGREES LATE TONIGHT. 

* IMPACTS...RECORD SETTING WARMTH IN MARCH HAS PRODUCED AN EARLY 
  GROWING SEASON. FREEZING TEMPERATURES WILL LIKELY DAMAGE OR 
  KILL SENSITIVE OUTDOOR PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS BELOW FREEZING TEMPERATURES ARE EXPECTED.
SENSITIVE OUTDOOR PLANTS WILL BE DAMAGED OR KILLED IF LEFT
UNPROTECTED. 
&&

$$

ROSE

Nearby

Freeze Warnings in Tennessee, 2012Every freeze warning in 2012

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.