Alert archive / Tennessee / Wind Advisories in 2011

Wind Advisory 16, NWS Morristown, TN

September 6, 201110 counties in Tennessee

NWS Morristown, TN issued this wind advisory at Sep 6, 2011, 12:16 AM CDT for 10 counties in Tennessee. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Sep 6, 2011, 12:16 AM CDT (05:16 UTC)
Expired
Sep 6, 2011, 10:10 AM CDT
In force
10 hr
Issued by
NWS Morristown, TN

Counties Bledsoe County, TN, Bradley County, TN, Hamilton County, TN, Marion County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Polk County, TN, Rhea County, TN, Sequatchie County, TN

The radar

The Northeast Alabama radar (KHTX), 114 km from the middle of the area, began a volume at 05:18 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, 5.3 hours before the alert went out and 173 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 2011-09-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 2011-09-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer LCL
501 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
17 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.

560 
WWUS74 KMRX 060516
NPWMRX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MORRISTOWN TN
116 AM EDT TUE SEP 6 2011

...WINDY CONDITIONS WILL PREVAIL ACROSS SOUTHEAST TENNESSEE EARLY
THIS MORNING...

.THE REMNANTS OF TROPICAL STORM LEE WAS LOCATED ACROSS EASTERN ALABAMA
AND NORTHWEST GEORGIA. THE TIGHT PRESSURE GRADIENT AROUND THE LOW
PRESSURE WAS PRODUCING WINDY CONDITIONS ACROSS SOUTHEAST TENNESSEE.
THESE CONDITIONS WILL PERSIST UNTIL MID-MORNING.


TNZ081>086-098>101-061330-
/O.NEW.KMRX.WI.Y.0016.110906T0516Z-110906T1500Z/
SEQUATCHIE-BLEDSOE-RHEA-MEIGS-MCMINN-NORTHWEST MONROE-MARION-
HAMILTON-BRADLEY-WEST POLK-
INCLUDING THE CITIES OF...DUNLAP...PIKEVILLE...DAYTON...DECATUR...
ATHENS...MADISONVILLE...JASPER...CHATTANOOGA...CLEVELAND...BENTON
116 AM EDT TUE SEP 6 2011 /1216 AM CDT TUE SEP 6 2011/

...WIND ADVISORY IN EFFECT UNTIL 11 AM EDT /10 AM CDT/ THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM EDT /10 AM CDT/ THIS
MORNING. 

* EVENT...NORTH WINDS BETWEEN 15 AND 30 MPH WITH GUSTS TO 40 MPH
  WILL CONTINUE UNTIL MID-MORNING.

* TIMING...STRONG NORTHERLY WINDS WILL CONTINUE THROUGH MID-
  MORNING...THEN DIMINISH.

* 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.

&&

$$
2 follow-up statements
753 
WWUS74 KMRX 060809
NPWMRX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MORRISTOWN TN
409 AM EDT TUE SEP 6 2011

...WINDY CONDITIONS WILL PREVAIL ACROSS SOUTHEAST TENNESSEE EARLY
THIS MORNING...

.THE REMNANTS OF TROPICAL STORM LEE WAS LOCATED ACROSS NORTHWEST
GEORGIA. THE TIGHT PRESSURE GRADIENT AROUND THE LOW PRESSURE WAS
PRODUCING WINDY CONDITIONS ACROSS SOUTHEAST TENNESSEE. THESE
CONDITIONS WILL PERSIST UNTIL MID-MORNING.

TNZ081>086-098>101-061500-
/O.CON.KMRX.WI.Y.0016.000000T0000Z-110906T1500Z/
SEQUATCHIE-BLEDSOE-RHEA-MEIGS-MCMINN-NORTHWEST MONROE-MARION-
HAMILTON-BRADLEY-WEST POLK-
INCLUDING THE CITIES OF...DUNLAP...PIKEVILLE...DAYTON...DECATUR...
ATHENS...MADISONVILLE...JASPER...CHATTANOOGA...CLEVELAND...BENTON
409 AM EDT TUE SEP 6 2011 /309 AM CDT TUE SEP 6 2011/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT /10 AM CDT/
THIS MORNING...

* EVENT...NORTH WINDS BETWEEN 15 AND 30 MPH WITH GUSTS TO 40 MPH 
  WILL CONTINUE UNTIL MID-MORNING. 

* TIMING...STRONG NORTHERLY WINDS WILL CONTINUE THROUGH MID- 
  MORNING...THEN DIMINISH. 

* 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.

&&

$$
918 
WWUS74 KMRX 061510
NPWMRX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MORRISTOWN TN
1110 AM EDT TUE SEP 6 2011

...WINDS DECREASING ACROSS SOUTHEAST TENNESSEE...

.NORTH TO NORTHEAST WINDS HAD DECREASED ACROSS SOUTHEAST TENNESSEE
AS THE REMNANTS OF TROPICAL STORM LEE MOVED NORTHEAST THIS MORNING.

TNZ081>086-098>101-061615-
/O.CAN.KMRX.WI.Y.0016.000000T0000Z-110906T1500Z/
SEQUATCHIE-BLEDSOE-RHEA-MEIGS-MCMINN-NORTHWEST MONROE-MARION-
HAMILTON-BRADLEY-WEST POLK-
INCLUDING THE CITIES OF...DUNLAP...PIKEVILLE...DAYTON...DECATUR...
ATHENS...MADISONVILLE...JASPER...CHATTANOOGA...CLEVELAND...BENTON
1110 AM EDT TUE SEP 6 2011 /1010 AM CDT TUE SEP 6 2011/

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS CANCELLED THE WIND
ADVISORY FOR PARTS OF SOUTHEAST TENNESSEE. 

NORTH TO NORTHEAST WINDS SHOULD REMAIN BELOW WIND ADVISORY SPEEDS
FOR THE REST OF THE DAY...AS THE REMNANTS OF TROPICAL STORM LEE
MOVE NORTHEAST AND WEAKEN FURTHER.

BREEZY NORTHERLY WINDS OF 15 TO 25 MPH WILL LINGER...WITH A FEW
HIGHER GUSTS AT TIMES.

$$

TG

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 3:54 AM CDTAreal Flood WarningMRXBledsoe, Blount, Bradley, Hamilton, Loudon, McMinn and 7 more6 hr
Sep 6, 3:59 AM CDTAreal Flood WarningMRXAnderson, Blount, Knox, Loudon, Roane, Sevier6 hr

Nearby

Wind Advisories in Tennessee, 2011Every wind 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.