Alert archive / Tennessee / Wind Advisories in 2012

Wind Advisory 8, NWS Morristown, TN

March 2, 20127 counties in Tennessee

NWS Morristown, TN issued this wind advisory at Mar 2, 2012, 3:00 AM EST for 7 counties in Tennessee. It took effect at Mar 2, 2012, 12:00 PM EST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Mar 2, 2012, 3:00 AM EST (08:00 UTC)
In effect from
Mar 2, 2012, 12:00 PM EST
Expired
Mar 2, 2012, 11:46 PM EST
In force
12 hr
Issued by
NWS Morristown, TN

Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, Sevier County, TN, Unicoi County, TN

The radar

The Knoxville radar (KMRX), 53 km from the middle of the area, began a volume at 08:02 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 8.0 hours before the alert went out and 264 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, Greensboro/Hi Pt, NC at 00:00Z on 2012-03-02Temperature 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, Greensboro/Hi Pt, NC at 00:00Z on 2012-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
4020 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
222 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.

922 
WWUS74 KMRX 020800
NPWMRX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MORRISTOWN TN
300 AM EST FRI MAR 2 2012

...WINDY CONDITIONS OVER THE HIGHER ELEVATIONS THIS AFTERNOON AND
EVENING...

.A STRONG LOW PRESSURE SYSTEM WILL MOVE ACROSS THE LOWER OHIO RIVER
VALLEY THIS AFTERNOON...AND WILL CREATE STRONG SOUTHERLY WINDS OVER
THE HIGHER ELEVATIONS OF THE SOUTHERN APPALACHIANS...GENERALLY ABOVE
2500 FEET. IN ADDITION...A SQUALL LINE OF STRONG TO SEVERE
THUNDERSTORMS IS EXPECTED TO DEVELOP AHEAD OF ITS ASSOCIATED COLD
FRONT...WITH THESE STORMS ALSO CREATING STRONG WINDS THIS AFTERNOON
AND EVENING.


TNZ018-041-043-045-047-072-074-021600-
/O.NEW.KMRX.WI.Y.0008.120302T1700Z-120303T0500Z/
JOHNSON-COCKE SMOKY MOUNTAINS-SOUTHEAST GREENE-UNICOI-
SOUTHEAST CARTER-BLOUNT SMOKY MOUNTAINS-SEVIER SMOKY MOUNTAINS-
INCLUDING THE CITIES OF...MOUNTAIN CITY...COSBY...CEDAR CREEK...
ERWIN...ROAN MOUNTAIN...CADES COVE...GATLINBURG
300 AM EST FRI MAR 2 2012

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO MIDNIGHT TONIGHT...

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO MIDNIGHT TONIGHT.

* WINDS...SOUTHERLY WINDS WILL INCREASE TO BETWEEN 20 AND 30 MPH...
  WITH HIGHER GUSTS UP TO 50 MPH...MAINLY IN THE HIGHER ELEVATIONS
  ABOVE 2500 FEET.

* TIMING...MAINLY THIS AFTERNOON AND EVENING.

* IMPACTS...THESE WINDS MAY DOWN TREES OR TREE LIMBS...AND POWER
  LINES. LOOSE OUTDOOR OBJECTS SHOULD BE SECURED. MOTORISTS SHOULD
  BE EXTRA CAUTIOUS TO CROSS WINDS WHEN DRIVING IN THE HIGHER
  ELEVATIONS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 26 TO 39 MPH AND/OR GUSTS OF
40 TO 57 MPH ARE EXPECTED OR OCCURRING. WINDS THIS STRONG CAN
MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES...
SO USE CAUTION WHEN DRIVING.

&&

$$

DMG
2 follow-up statements
203 
WWUS74 KMRX 021733
NPWMRX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MORRISTOWN TN
1233 PM EST FRI MAR 2 2012

...WINDY CONDITIONS OVER THE HIGHER ELEVATIONS THIS AFTERNOON AND
EVENING...

.A STRONG LOW PRESSURE SYSTEM WILL MOVE ACROSS THE LOWER OHIO
RIVER VALLEY THIS AFTERNOON...AND WILL CREATE STRONG SOUTHERLY
WINDS OVER THE HIGHER ELEVATIONS OF THE SOUTHERN APPALACHIANS...
GENERALLY ABOVE 2500 FEET. SCATTERED STRONG TO SEVERE STORMS HAD
ALREADY DEVELOPED IN THE WARM AND MOIST AIRMASS OVER THE TENNESSEE
VALLEY REGION...CAUSING LOCALLY GUSTY WINDS.

IN ADDITION...A SQUALL LINE OF STRONG TO SEVERE THUNDERSTORMS IS
EXPECTED TO DEVELOP AHEAD OF ITS ASSOCIATED COLD FRONT...WITH THESE
STORMS ALSO CREATING STRONG WINDS THROUGH THE AFTERNOON AND EVENING.

TNZ018-041-043-045-047-072-074-030300-
/O.CON.KMRX.WI.Y.0008.000000T0000Z-120303T0500Z/
JOHNSON-COCKE SMOKY MOUNTAINS-SOUTHEAST GREENE-UNICOI-
SOUTHEAST CARTER-BLOUNT SMOKY MOUNTAINS-SEVIER SMOKY MOUNTAINS-
INCLUDING THE CITIES OF...MOUNTAIN CITY...COSBY...CEDAR CREEK...
ERWIN...ROAN MOUNTAIN...CADES COVE...GATLINBURG
1233 PM EST FRI MAR 2 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WINDS...SOUTHERLY WINDS WILL INCREASE TO BETWEEN 20 AND 30 MPH...
  WITH HIGHER GUSTS UP TO 50 MPH...MAINLY IN THE HIGHER ELEVATIONS
  ABOVE 2500 FEET...BUT ALSO IN AND NEAR ANY STRONG TO SEVERE
  STORMS.  

* TIMING...THIS AFTERNOON AND EVENING.

* IMPACTS...THESE WINDS MAY DOWN TREES OR TREE LIMBS...AND POWER 
  LINES. LOOSE OUTDOOR OBJECTS SHOULD BE SECURED. MOTORISTS 
  SHOULD BE EXTRA CAUTIOUS TO CROSS WINDS WHEN DRIVING IN THE 
  HIGHER ELEVATIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 26 TO 39 MPH AND/OR GUSTS OF
40 TO 57 MPH ARE EXPECTED OR OCCURRING. WINDS THIS STRONG CAN
MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES...
SO USE CAUTION WHEN DRIVING.

&&

$$

TG
344 
WWUS74 KMRX 030446
NPWMRX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MORRISTOWN TN
1146 PM EST FRI MAR 2 2012

...WINDS DECREASING AS THUNDERSTORMS WEAKEN AND DRIER AIR MOVES IN
WITH COLD FRONT MOVING INTO EAST TENNESSEE...

.THE STRONG LOW PRESSURE SYSTEM MOVED FROM THE OHIO VALLEY
NORTHEAST INTO SOUTHERN ONTARIO LATE TONIGHT AND A COLD FRONT WAS
MOVING INTO THE EASTERN TENNESSEE VALLEY WITH WINDS BECOMING WEST
TO NORTHWEST. THE WINDS WILL BE MOSTLY 10 TO 20 MPH WITH HIGHER
GUSTS BUT BELOW ADVISORY CRITERIA FOR THE REMAINDER OF THE NIGHT.

TNZ018-041-043-045-047-072-074-030600-
/O.CAN.KMRX.WI.Y.0008.000000T0000Z-120303T0500Z/
JOHNSON-COCKE SMOKY MOUNTAINS-SOUTHEAST GREENE-UNICOI-
SOUTHEAST CARTER-BLOUNT SMOKY MOUNTAINS-SEVIER SMOKY MOUNTAINS-
INCLUDING THE CITIES OF...MOUNTAIN CITY...COSBY...CEDAR CREEK...
ERWIN...ROAN MOUNTAIN...CADES COVE...GATLINBURG
1146 PM EST FRI MAR 2 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS CANCELLED THE WIND
ADVISORY. 

WINDS HAVE DECREASED AND SHIFTED TO THE NORTHWEST AS A COLD FRONT
MOVES THROUGH.

$$

TD

The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 2, 10:58 AM ESTSevere Thunderstorm WarningMRXHawkins, Sullivan32 min
Mar 2, 10:59 AM ESTFlood WatchMRXAnderson, Bledsoe, Blount, Bradley, Campbell, Carter and 27 more14 hr
Mar 2, 11:25 AM ESTTornado WarningMRXBledsoe, Sequatchie35 min
Mar 2, 11:31 AM ESTTornado WarningMRXMarion44 min
Mar 2, 11:39 AM ESTTornado WarningMRXMorgan22 min
Mar 2, 11:49 AM ESTTornado WarningMRXHamilton, Marion41 min
Mar 2, 11:55 AM ESTTornado WarningMRXCampbell, Morgan, Scott35 min
Mar 2, 11:57 AM ESTTornado WarningMRXBledsoe, Rhea33 min
Mar 2, 12:16 PM ESTTornado WarningMRXHamilton, Marion, Sequatchie44 min
Mar 2, 12:25 PM ESTTornado WarningMRXClaiborne, Hancock35 min
Mar 2, 12:29 PM ESTTornado WarningMRXCampbell, Claiborne31 min
Mar 2, 12:30 PM ESTTornado WarningMRXLoudon, Meigs, Rhea, Roane30 min
Mar 2, 12:44 PM ESTSevere Thunderstorm WarningMRXHamilton, Meigs, Rhea31 min
Mar 2, 12:50 PM ESTTornado WarningMRXBradley, Hamilton, McMinn, Polk25 min
Mar 2, 1:04 PM ESTSevere Thunderstorm WarningMRXBlount, Knox41 min
Mar 2, 1:19 PM ESTTornado WarningMRXKnox, Sevier26 min
Mar 2, 1:23 PM ESTTornado WarningMRXBradley, McMinn, Monroe, Polk37 min
Mar 2, 1:39 PM ESTTornado WarningMRXCocke, Grainger, Hamblen, Jefferson, Knox, Sevier36 min
Mar 2, 1:49 PM ESTTornado WarningMRXBlount, Monroe41 min
Mar 2, 2:13 PM ESTSevere Thunderstorm WarningMRXBlount, Monroe47 min
Mar 2, 3:34 PM ESTTornado WarningMRXBledsoe, Marion, Sequatchie41 min
Mar 2, 3:59 PM ESTSevere Thunderstorm WarningMRXLoudon, McMinn, Monroe, Roane46 min
Mar 2, 4:14 PM ESTSevere Thunderstorm WarningMRXBledsoe, Meigs, Rhea46 min
Mar 2, 4:24 PM ESTTornado WarningMRXMarion, Sequatchie51 min
Mar 2, 4:55 PM ESTSevere Thunderstorm WarningMRXLoudon, Roane50 min
Mar 2, 5:24 PM ESTSevere Thunderstorm WarningMRXScott36 min
Mar 2, 5:29 PM ESTSevere Thunderstorm WarningMRXMarion46 min
Mar 2, 5:29 PM ESTTornado WarningMRXAnderson, Knox31 min
Mar 2, 5:33 PM ESTTornado WarningMRXBledsoe, Hamilton, Meigs, Rhea27 min
Mar 2, 5:38 PM ESTTornado WarningMRXScott37 min
Mar 2, 5:57 PM ESTSevere Thunderstorm WarningMRXMcMinn, Meigs, Rhea18 min
Mar 2, 5:57 PM ESTTornado WarningMRXCampbell, Claiborne, Scott33 min
Mar 2, 6:03 PM ESTSevere Thunderstorm WarningMRXHamilton, Marion42 min
Mar 2, 6:15 PM ESTSevere Thunderstorm WarningMRXLoudon, McMinn, Monroe45 min
Mar 2, 6:28 PM ESTTornado WarningMRXBradley, Hamilton47 min
Mar 2, 6:30 PM ESTTornado WarningMRXBlount, Loudon, McMinn, Monroe45 min

Nearby

Wind Advisories in Tennessee, 2012Every wind advisory 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.